Chapter 459: Breakthrough in laminated devices again, interview prospective doctoral students

In the class of "Inorganic Functional Materials".
Xu Qiu stepped onto the stage and began to give a PPT speech.
Because the number of electives for this course is relatively large, the time allocated to each student to report is very short, only five minutes.
Therefore, Xu Qiu picked his best job "Nature·Energy" at the moment, and shared it with everyone.
Seeing the big logo of "Nature·Energy" placed there, Mr. Yu Bing, who was sitting in the audience, was a little enthusiastic.
A group of postdoctoral fellows in their research group, although they have published a lot of AM and JACS over the years, it is still difficult to get one step closer to the level of "Nature" journals. Now the direct Ph. "Nature" is published.
The other students were relatively calm. At the last organic photovoltaic conference organized by Wei Xingsi, some of them happened to be present, while others who were not present at the time also learned about Xu Qiu's glorious deeds through class groups and circle of friends.
Xu Qiu's popularity is still relatively high. After the start of the speech and the end of the speech, the students welcomed the warmest applause.
After all, people will be jealous of people who are stronger than them, but when faced with people who are too strong, they are less likely to feel jealous, but turn into admiration or admiration.
After successfully completing the report, Xu Qiu returned to the stage, listened carefully to other people's reports, and gave scores.
The scores are given on a 10-point system, with 0.5-point intervals. All the values ​​given by Xu Qiu are distributed between 6 and 10 points, which are roughly normal distribution, mostly 7-9 points.
Xu Qiu gave himself a score of 9.5 points, and 0.5 points were deducted to prevent himself from being proud.
The only 10 points were given to Mu Xue. The other party did a good job in terms of the level of speech and the content of the report. It should be said that it is the only one among the students present.
After all, there is a professor at Magic University in the family, and his start in scientific research is indeed much higher than that of a normal family.
Of course, other students who can enter the University of Magic are not bad.
In general, more than 80% of the students' speech level is still above the excellent line, and they can express clearly without long pauses.
Only a few students may be introverted, nervous, or insufficiently prepared. They stumble and sometimes forget their words.
As for the content, there are more first-year freshmen among the students who choose courses.
Therefore, most of the content reported by students is the work published by other seniors in the research group, or reports on the literature published by other research groups.
Xu Qiu was the only one among the students who reported on the work he had done. The other two were Mu Xue, who had previous work just like him, and a third-year PhD student.
After all the students reported, Yu Bing recovered the score sheet of each student.
At this time, Xu Qiu copied these scoring tables into the simulation laboratory like experimental materials through the system. He mainly wanted to know his scores in advance.
Looking around, Xu Qiu found that his scores on all the other students' score sheets were all 10 points.
This was something he didn't expect. Even at the beginning, Xu Qiu wondered if someone would deliberately give him a low score.
This is all right, the 9.5 points I scored for myself turned out to be the lowest score.
After deducting a minimum score and a maximum score, my score on the student side is 10 points.
At the same time, in the grade given by the instructor Yu Bing, Xu Qiu is also 10 points, and it is the only 10 points.
Yu Bing gave Mu Xue a score of 9.5.
In other words, the total score reported by Xu Qiu's PPT this time is a perfect score of 10. The problem of getting A in this course is basically not big.
This can be regarded as well deserved. With several group meetings and the training of the conference report, Xu Qiu's current speech ability has reached a very high level.
In addition, with the increase in system authority levels, some new functions that are not related to experiments have also been developed by Xu Qiu. Copying the score sheet is just one of the small functions.
Once Xu Qiu wanted to try it out and wanted to copy Han Jiaying into the simulation laboratory.
It turned out that it was really successful. The school girl was restored 1:1 in the simulation laboratory, and there was a sense of touch...
Then, Xu Qiu...
Unfortunately, he found that the school girl who copied in won't move...
Otherwise, he really wanted to copy a few more people in and help him experiment.
Fortunately, the integration of the system can basically achieve perpetual motion, but it doesn't matter, there are enough simulation experiment personnel.
Friday, it happened to be Christmas Eve.
Because Wei Xingsi had been in the beautiful country all the year before, he still retained some of the traditions in the beautiful country.
For more important western festivals such as Halloween, Christmas Eve, and Christmas, he will give benefits to the group, such as one-third of the day off, which is one night, and entertaining guests to go out and play.
This time is no exception. Wei Xingsi expressed that he invited guests to dinner in the evening and supported the construction of the research team.
However, he did not come in person, only to provide funds, probably to be with his family or other important people.
Although a few undergraduates didn't work much in the laboratory due to the exam week, they all rushed over to participate very actively when they heard about team building activities.
The business district near Modu University is very large. It is also an important business district of Modu, Wujiaochang, and there are hundreds of restaurants in the surrounding area.
The most important thing is that old restaurants will always close down and new restaurants will open, so there is no need to worry about finding new restaurants to eat.
In the end, after careful selection by Wu Feifei, Tian Qing and others, they found a newly opened "Feast Teppanyaki", which was said to have been well received.
However, due to Christmas Eve and Friday, online queuing is not open, so you can only queue up on site.
When they arrived at the scene, everyone found that there were a lot of people in line, and they finally queued for more than an hour to get in.
The price here is still expensive, and the portion is relatively small.
However, it is difficult for everyone to gather for a meal, and it is not too economical, so they decided to catering according to the standard of 100 yuan per capita.
According to the usual practice, Mr. Wei’s meal reimbursement standard is 70 yuan per person.
Xu Qiu and Wu Feifei combined slightly. When deciding to reimburse, Mr. Wei gave 70% and the team building fund in his group gave 30%.
Now Xu Qiu and the others have reconnected with Shencheng Optoelectronics Company, and they have received a few bonuses for publishing articles. The team building funds are still abundant, and there are thousands of dollars left.
In fact, the per capita meal standard of 100 yuan is not too expensive for the devil. If you just order dishes without the staple food, you may not even be full.
Especially the new junior undergraduate in the group, Deng Hu is very strong and has an amazing appetite.
People who go to the cafeteria to eat rice are one-by-two, and Deng Hu is for five-two and one catty. A meal that can handle one catty is accompanied by three dishes.
Therefore, Xu Qiu intimately ordered a large portion of fried rice for Deng Hu.
The dishes here are pretty good and more delicate.
There was a chef with a white top hat on the spot to help process the ingredients, then bake them, cut them and deliver them to everyone.
...
After half an hour, everyone had almost eaten, patted their belly, and began to discuss where to go next.
The usual team building entertainment activities for college students and graduate students are actually relatively limited.
Basically it means eating, playing board games, either mahjong, 80 minutes, or bar.
The little friends in the research group are basically "good babies", so no one suggested going to the bar.
Of course, it may also have something to do with the high consumption of bars. Graduate students are generally poorer.
When Xu Qiu was undergraduate, he was taken to a bar once by Tao Yan and saw that the drinks on the menu were basically 50+ or ​​even 100+.
And the names are also very literary, such as Lady in Pink, Cyan Grasshopper, Long Island Iced Tea, Angel's Kiss, Boss Cat's Feet...
Xu Qiu ordered a cup of Long Island Iced Tea at will. Looking at the name, it might look like iced black tea?
As a result, I took a sip. It felt sweet and awful, and Jane couldn't bear it.
I don’t know if this cocktail recipe doesn’t suit me, or the bartender’s skills are not good enough.
Later, when graduating from undergraduate, Xu Qiu went to the bar with Tao Yan and other classmates.
That time I drank an unnamed liqueur made by the bar itself, a pot of 168, the taste was not bad, but the stamina was a little bit more powerful.
The four people drank three pots, and they were all normal in the bar. When they went out, they were blown by the wind, and they staggered in an instant. In the end, they basically walked back to the bedroom diagonally.
After a lot of discussions, everyone finally voted and chose the board game from the board game and the second choice.
At this time, Wu Feifei said: "I won't participate if I have something to do later. You can go play board games. For reimbursement, Xu Qiu, you can directly contact Teacher Wei, or you can report the amount to me."
As soon as her voice fell, everyone's attention and scrutiny greeted her.
Xu Qiu also felt that Feifei Wu’s performance during this period was indeed a bit strange. Like when he was dealing with PCBM customs clearance matters before, she saw Feifei Wu saying that she was busy, but she was actually busy replying to WeChat messages, not busy. Write articles or experiment.
Moreover, when other people pass by Feifei Wu, she will subconsciously use her hands to cover the phone screen.
At that time, Xu Qiu speculated that there was a high probability that Feifei Wu was going to leave the singles.
It now appears that my judgment at the time is very likely to be correct.
There are currently 13 people in the research group. Except for Xu Qiu and Han Jiaying who are a pair, Duan Yun and the new undergraduate Yin Houlang have girlfriends, the others seem to be single.
Tian Qing occasionally pairs with a male student from another research group on the fifth floor of Caiyi, but according to her: "We are just ordinary friends."
In fact, at the postgraduate level, especially girls, they should really consider these things, and if you don't consider them, you will be left behind.
It’s funny. Now, including many parents in the past, when their children were in high school, they were afraid that they would fall in love early, but when they were in college, they wished they could talk about a girlfriend immediately, take home during the Chinese New Year, and get married after graduation Kind.
Going deeper, domestic families, especially those with a relatively low level of education of the previous generation, generally lack education in such aspects as love, sex, money, death, and career planning. And school education is too test-oriented, and it is difficult to make up for this. Aspect knowledge.
Although over time, even people who have not received such education will gradually understand these principles in the "social beatings."
But there is only once in life, and some key points have passed, and there will be no chance to start again.
For example, some social events that have caused widespread heated discussion: "unexpected pregnancy of minors/college students", "minors rewarding anchors in large sums", "minor game recharges, spending all family savings", "college students taking fruit photos Borrowing", "Because of some trivial things, such as failing exams, being broken up and committing suicide easily"...
In essence, it corresponds to the lack of family education.
However, this is a limitation unique to that generation.
Even if the people who eat melon on the Internet are happily discussing, standing on the moral commanding heights and pointing the country: "This is the wrong one, the other is the wrong one", it is of no practical use.
Similar situations will always happen, this is the scar of the times, only time can wash away all of this.
Of course, it is still necessary to use news to report these things, and it may be able to save some lost lambs.
Although the effect may be weak and the symptoms can not be cured, but one can save one.
In fact, every generation has troubles of every generation. Because of a certain incident, the level of education of that generation is generally lower, causing many tragedies.
This generation has raised the level of education, but it has also ushered in the internal scrolls and is facing the same severe test.
After Wu Feifei said that there was an incident, Yin Houlang also said that he would not participate in an incident. In the end, only 11 people left to play board games.
After walking for a few minutes, everyone came to the familiar maid board game shop on Daxue Road without a maid.
Now the new undergraduates in the research group are already familiar with the others, and they are not so happy anymore.
Yu Ya seems to be a board game enthusiast and took the initiative to give everyone a board game called "Avalon".
Then, I quickly got a response from Mo Wenlin, who is also a board game enthusiast, and no one else raised any objections.
Yu Ya briefly introduced: "Avalon’s standard game is 7 players, but 10 players can also play. There are 11 of us, exactly 1 god, and 10 players. The background of Avalon’s story comes from the "Legend of King Arthur". , A bit similar to a werewolf killing, but the biggest feature of Avalon is that civilians will not die. It is divided into two camps, the blue side and the red side. The blue side aims to complete the task and protect the archmage Merlin as the goal of victory; the red side aims to The goal is to destroy the mission and assassinate the archmage Merlin."
Mo Wenlin added: "There are five missions in total, which is equivalent to 5 games and 3 votes to determine the winner. Of course, the premise is that Merlin cannot be exposed too early and be discovered by the red team."
Yu Ya continued: "For a 10-player game, the blue side has Merlin, Percyville, and 4 Arthur’s loyal ministers, and the red side has Mordred, Morgana, Oberon and the Assassin, except for Arthur’s. Apart from loyal ministers, everyone has special abilities."
Mo Wenlin took out each identity card from the box, spread it out one by one, and explained to everyone:
"Merlin on the blue side can initially see all the red side characters except the red side Mordred;
"Pixieville on the blue side can initially see Merlin on the blue side and Morgana on the red side, but cannot confirm their respective identities;
"Lan Fang Arthur's loyal minister has no special ability and is equivalent to a villager in the werewolf killing;
"Mordred on the red side, Merlin on the blue side can't see him;
"Morganna of the red side can pretend to be Merlin of the blue side and confuse the blue side's Pesiville, because Pesivir usually leads the team by showing her identity;
"The Oberon of the red side cannot see the other red side, nor can the other red side see him, similar to the hidden wolf killed by a werewolf;
"The red assassin, after three successful missions in the blue camp, decides alone to choose a player who may be Merlin to assassinate. If selected, the red side wins.
"I'll be God in this game, how about you come to Yuya in the next game?"
"Okay." Yu Ya nodded.
After listening to the rules, other people are a little ignorant.
Because the names involved are all crooked nuts, it would be easier to understand if they were called Zhang San, Li Si, Wang Wu, or Blue One, Blue Two, Red One, and Red Two.
However, everyone here is a person who has been educated for more than ten years and has a relatively strong ability to get in touch with new things.
After the two games, all have initially mastered the rules of the game and started a formal competition.
In the third game, Mo Wenlin is God, and Blue has completed three tasks.
Seeing that the blue side is about to win, the red side can only rely on the assassin to save the field.
At this time, Xu Qiu turned over the cards: "The flop, I am the assassin...Who is Merlin?"
While speaking, Xu Qiu's gaze was also scanning other people around.
He found that Tian Qing seemed a little nervous, but the other party might also be acting, holding Arthur's loyal minister, and wanted to pretend to be Merlin to block the knife.
Originally, Xu Qiu had some doubts about Tian Qing, but now that she sees her acting so obviously, the level of suspicion towards her has been greatly reduced.
Xu Qiu turned to look at the school girl next to him, and said, "Mei Lin, it's you, have you known my identity a long time ago and have been stepping on me?"
Han Jiaying sighed lightly: "Hey, you found all of this."
Mo Wenlin said: "Assassin, did you choose to assassinate Han Jiaying?"
In this mode, the assassin made the assassination decision himself, and could not communicate with other red teammates, nor could he know the hidden red team Oberon, so the difficulty was relatively high.
Although Xu Qiu can cheat through the system and look at other people's cards, it is meaningless to do so.
This kind of game still relies on its own logical reasoning to get the right result to get satisfaction.
Xu Qiu shook his head. He didn't look at the state of the school girl like Mei Lin. She might also be a loyal minister, but because she knew better about herself, she inferred that she was red.
On the field, Sun Wo is the well-known Pesieville.
The other two bright red teammates are Deng Hu and Wu Shengnan.
In the end, Xu Qiu struggled between Chen Wanqing, Duan Yun, and Xu Xinjie:
Xu Xinjie's speech was relatively straightforward, and the vote followed the trend. It may be due to his character or his loyal minister. There is no information.
Duan Yun is a bit like Oberon of the red side. Whether speaking or voting, he has been quietly helping the red side. Of course, he may also be a false loyal minister who does not know the situation, but the probability is not Merlin.
Chen Wanqing often interacted with Sun Wo consciously or unconsciously, as if he was handing over to Lan Fang’s Passiwell, saying that I am Merlin and I am Merlin. Don’t admit the wrong person. She is more likely to be Merlin.
After struggling for a while, Xu Qiu finally chose Chen Wanqing: "Sister, you are Mei Lin."
Mo Wenlin said: "Assassin, did you choose to assassinate Chen Wanqing?"
Xu Qiu nodded: "Yes."
Mo Wenlin said: "Chen Wanqing flops to Merlin. The game is over and the red side wins."
Chen Wanqing, Han Jiaying, and Tian Qing suddenly lowered their crotches, looking regretful.
Deng Hu, Wu Shengnan, and Duan Yun showed smiles.
Sure enough, Duan Yun was the hidden Oberon who was not so obvious.
Chen Wanqing said, "Hey, how did you find me, Xu Qiu..."
Tian Qing and the school girl said in unison: "I thought you would identify me as Merlin."
Xu Qiu laughed, this is what he inferred from his strength, he didn't open up, he still had a sense of accomplishment, saving the red team from the fire and water, turning defeat into victory.
After all, the blue side has six people, plus Oberon hidden by the red side, there are a total of seven unknown identities.
In addition to Ming Pai Xiweier, himself and two Ming teammates, Xu Qiu's choice of a true Merlin from the remaining six people is still a test of his level.
...
Happy hours are always short, and in a blink of an eye it is Sunday again.
At 1:20 in the afternoon, Xu Qiu came to Caiyi ahead of schedule.
He received a message from the customs clearance company that the other party claimed that the package for PCBM had been delivered.
Xu Qiu went to the concierge to pay the postage payable. After receiving the package, he took out the PCBM bottle, transferred it to the glove box, and copied a copy to the simulation laboratory.
Then, he returned to his desk, opened the draft file of "Science", and continued to fill in the content.
In a short while, other friends in the laboratory gradually reached it.
Mo Wenlin approached Xu Qiu and said, "Are we still going to make devices today? During this period of time, I made four batches of stacked devices, but the highest efficiency was only 15.35%, which is higher than your previous 15.31%. 0.04%, hey...this is equivalent to standing still, what can we do to continue to improve?"
Xu Qiu thought for a while and suggested: "The new PCBM is here today. You can use this batch of PCBM re-preparation solution to try it out, maybe the performance of the device will be improved."
Mo Wenlin replied: "Um... OK, I'll try it."
At present, the efficiency of the IDIC-M/-4F system laminated device in the simulation laboratory has been optimized to 15.91%, which is very close to the 16% mark.
However, in reality, the efficiency of stacked devices has been slow to break through. Even if the known optimal conditions are applied simultaneously, the gap with the simulation laboratory remains at about 0.56%.
Xu Qiu was also a little surprised about this.
Although there will be a gap between the device performance of the usual reality and the simulation laboratory, the gap is usually between 0-0.3%, and generally does not exceed 0.5%.
This time there was a gap of more than 0.5%. Xu Qiu didn't think it was because of Mo Wenlin's experimental operation problems, and was more inclined to the problem of experimental drugs.
Because the PCBM in the simulation laboratory can never be used up, and the operation of the operator is absolutely standardized, the state of the medicine is relatively good.
In reality, the status of medicines in the laboratory will deteriorate as the time of use becomes longer.
This is also easy to understand. If it is a medicine exposed to the air, some will react chemically with oxygen, water, and even carbon dioxide in the air.
There are also some medicines, such as inorganic salts and organic monomer materials, which can also be damp and absorb water.
If it is a medicine stored in a glove box, although it is difficult to encounter water and oxygen under the protection of high-purity nitrogen, various impurities will also be introduced during use.
Because it is difficult to ensure that every experimental operation is completely standardized, there will always be operational errors.
Moreover, sometimes people don't even know that they have made operational mistakes.
Just as safety measures are done well, there is also a certain probability that others will like to be fathers.
In addition, the number of people in the laboratory is very large, and there may be situations where reagents are shared.
No one knows what other people have done with this reagent, whether the reagent has been contaminated.
For various reasons, only a little bit of PCBM may have been mixed with various reagents, including perovskite and non-fullerene acceptor materials.
After all, there are only a few scrapers in the glove box, and people often use them together. Even if they are wiped clean with lens cleaning paper before and after each use, there will always be residues of the last drug. Over time, the purity of the drug will drop very much. many.
This is why a small amount of medicine, such as 100 mg, needs to be transferred to a vial, and then taken from the vial for medicines in large packages of 1 gram and 5 grams like PCBM.
Because once the medicine in the small bottle is contaminated, it can be directly discarded, and if the large bottle is completely contaminated, the cost of discarding is somewhat high.
After talking about PCBM, Xu Qiu continued to order: "By the way, you also need to take over several new materials from Wu Shengnan."
"Ah -" Mo Wenlin said with a bitter face, "Isn't it necessary to rebuild the array of stacked devices..."
During this period of time, she didn't make less devices, and was exhausted all day long arranged by Xu Qiu. As a result, she didn't have any results, because she couldn't form effective positive feedback, so she was a little slow.
Upon seeing this, Xu Qiu dragged the "Science" draft file on the computer screen to the top, in the column of article title and author.
"Look here." Xu Qiu pointed to the second author of the article.
Seeing that she was the second one and Wu Shengnan was the third one, Mo Wenlin was immediately excited: "Xu Qiu, I'm going to make devices, Sun Wo, I, I, I want to... make devices, wait for me, let me I will prepare a solution."
"Okay, you go." Sun Wo had already entered the glove box. Hearing Mo Wenlin's call, he retired directly. He is now more Buddhist. Anyway, knowing that there is a high probability that he won't be able to achieve any big results. Paddling, mixed with a diploma.
Sun Wo is now in a state of following the general direction of Feifei Wu. At the same time, if there is any experimental arrangement on the organic photovoltaic side, he will not fight or grab it, and he will just be able to end up leisurely.
Even if Teacher Wei asks in the future, he can still defend himself: "It's not that I want to fish. I was forced to do it. Xu Qiu and the others are too strong to rob them."
In the simulation laboratory, in addition to the IDIC-M ternary/-4F binary system, several near-infrared non-fullerene materials developed by other research groups, including COi8DFIC materials, have now been synthesized and replaced The -4F material in the original top cell is simultaneously exploring the performance of the laminated device.
Judging from the current preliminary results, the device efficiency of several new systems has not exceeded the original -4F system for the time being.
It's normal, after all, building a stacked device array is a troublesome thing.
Ordinary single-junction devices may get the best results in a day or two in the simulation laboratory, and it may take a week or two for the current laminated devices to optimize the conditions.
However, although the system based on new materials did not break the original record of 15.9% of the original -4F system, several materials did not disappoint Xu Qiu too much. As a result of preliminary exploration, the efficiency generally exceeded 14%.
The best system is COi8DFIC, which Xu Qiu was very optimistic about.
The device efficiency with J4:PCBM:IDIC-M as the bottom cell and PCE10:COi8DFIC as the top cell reached 15.67%.
According to the current situation, it is only a matter of time to catch up with the original -4F system in terms of device efficiency, and it is very likely that it can exceed 16%.
Speaking of which, if Xu Qiu sorts out the new four or five laminated systems, each system has an article, according to the current highest efficiency of only 13.5% in the organic photovoltaic field, it can basically be smashed.
If these jobs are released, in the current highest 13.5% organic photovoltaic field, they are basically slings, and they can be issued in AM, JACS, EES, and NC rotations, and even a large publication of "Nature" can be obtained.
However, Xu Qiu did not intend to do this.
At this stage of Xu Qiu, the work of AM and the like is of little significance to him. It belongs to the kind of casual publication. It is his job to hit a CNS main journal.
Moreover, if so many articles are really gone, even if the efficiency of other devices reaches 16% or 17% in the future, it is estimated that they may not be able to send CNS.
Because the novelty was apportioned to other similar articles.
Unless the differences between the several systems that are made are very large, or the gap in device efficiency is widened again, it can achieve 18%, or even more than 20%.
In addition, even if you are really ready to "sell" all these tasks, you still need people to complete them. Experiments and writing articles require energy.
The situation Xu Qiu faces now is that he has a good job with too many good ideas, but the research team is short of manpower.
The elder sister graduated right away, and she can’t count on her. The elder sister is busy synthesizing PTQ series donor materials. Wu Shengnan also has her own receptor synthesis task. Mo Wenlin was originally working on the ternary system, but she is now abducted to the stack. The device is here, but she has only one person and can't eat so many systems.
Xu Qiu pondered that he also needed to cultivate some reserve forces for himself, and it was best to recruit some new people in.
Next year, if Chen Wanqing and Duan Yun graduated from Ph.D., and Jiaying Han came in, the group could also recruit a Ph.D. to take the class of a senior.
But there can only be one Ph.D. There are already so many people in the group, and it is impossible to let Teacher Wei go out to "borrow" places.
Perhaps, you can add a burden to the two new undergraduates?
Isn't Yin Houlang planning to go abroad? Although foreign countries value recommendation letters, articles are hard currency for colleges and universities. It can be said that articles are letters of recommendation written to themselves.
If the undergraduate course publishes an article of "Nature", basically all schools in the world will rush to ask for it.
In fact, undergraduate students can post an AM article. As long as the English is not too bad, it is relatively easy to pass the corresponding IELTS TOEFL test and go to the top ten universities in the world.
After all, I can post AM, not to mention the experimental ability, the ability to write articles is definitely very strong.
Even if the research field changes, the ability to write articles will remain.
However, Xu Qiu changed his mind to think, Yin Houlang and Xu Xinjie, they are only sophomores, and they are all children.
Do you want to destroy them?
At this moment, Wei Xingsi suddenly appeared at the door of 216: "Xu Qiu, come to my office."
Xu Qiu asked, "What's the matter?"
Wei Xingsi explained:
There is a master student from Eastern Expedition University who intends to come to our side to study for a Ph.D. I think the resume he sent is okay, so let him come and talk. The plan is to take Chen Wanqing’s class, so if he comes If you do, it’s up to you. Come and take a look. Today will be an interview."
"Okay." Xu Qiu's eyes lit up. Someone would give pillows when he was really dozing off.
With the continuous publication of high-quality articles in the group and the timely maintenance of the research group’s website, the reputation of the group has now been blown out.
Wei Xingsi often receives emails from third-year masters students, expressing his intention to come to study Ph.D.
All the applicants are students from other schools, because the direct Ph.D student of this school, that is, Han Jiaying's class, has now confirmed the tutor, and the chance of trying to dig a wall is relatively small.
However, none of the applications that Mr. Wei received was satisfactory, so all of them were rejected.
Wei Xingsi believed that the requirements for screening resumes were "not high", and there were only three points.
Look at the article first. It is required that at least one SCI area 1 or 2 article has been published as the first author.
Because the requirements for publishing articles in the third and fourth districts are different from those in the first and second districts, the language requirements for articles in the third and fourth districts will be much lower than those in the first and second districts, regardless of the experimental work.
If you have no experience in posting articles above the second district, most of them still need to develop their ability to write high-level articles from scratch. This is a very troublesome thing.
Even with a good level of English, it takes a lot of time.
For example, in Sun Wo's ACSAMI, it took more than a month to write the article, almost two months.
And the same job given to Xu Qiu may only take less than a week, and the work efficiency is more than four or five times worse.
Secondly, see the body, that is, the school during the undergraduate and master's period.
Wei Xingsi thinks that at least one of them must be 985, and the best undergraduate is 985.
Finally, looking at English scores, CET6 is required to reach 500+.
This is also the minimum standard set by the department. If the English is too poor, it will be very painful to change the article in the future.
However, there were too many people rejected some time ago, which also made Wei Xingsi discover the source of students from other schools. It may be a little difficult to meet the three conditions at the same time. If the requirements are kept high, the result is that no one can be recruited. It's embarrassing.
As a result, Wei Xingsi lowered the standard and reached two of three.
This time the candidate only meets two of the conditions.
The other party is from Dongfa University. Although it is not 985, it is good enough in other aspects. During the master's degree, he published an AFM review, an ACSAMI, and received a national scholarship. The English score is 600+.
Moreover, the Department of Materials of Eastern Expedition University and Modu Comprehensive University cooperate closely, and many talents are passed here all the year round. Feifei Wu in the group is from Eastern Expedition University. Wei Xingsi also has a natural affection for students from Eastern Expedition University. .
In addition, Dongfa University happens to be in the magic city, so it is more convenient to come here.
Therefore, Teacher Wei asked the other party to come over on weekends to meet and chat.
It is worth mentioning that, from undergraduate to postgraduate, it is usually necessary to enter the university through postgraduate entrance examination or postgraduate guarantee, which is relatively troublesome and has a certain threshold;
For masters to Ph.Ds, admission is relatively simple. The evaluation system is usually adopted. There may be only interviews without examinations, and the threshold is relatively low. It belongs to "good entry, not exit".
Like the Department of Materials Science and Technology of University of Magic, I contacted the tutor, and the tutor is willing to ask you, there is a high probability that you can come in.
Faculty and departments are relatively easy to speak, the only mandatory requirement is English CET6 scores, which are generally above 500 points.
Of course, due to the internal volume, many master's students regard Ph.D. students as employment, and the standard for recruiting doctoral students in schools is also improving year by year, and some graduate applicants with relatively poor conditions will be eliminated.
For example, when Feifei Wu applied for the postgraduate and postgraduate courses, she found that the number of postgraduate and postgraduate courses that she could not use in previous years was not enough that year.
Later, she successfully transferred to the blog. Several master students who had planned to continue their postgraduate studies were eliminated and were unable to transfer to the blog.
According to Wu Feifei, at the time of the assessment, although interview results were used as the standard, it was mainly based on the articles published during the master's degree to determine the final ranking.
In general, in the same school in China, it is best to enter a Ph.D. The threshold is very low. Basically, only interviews are required, followed by a master's degree, which requires postgraduate entrance/postgraduate entrance examinations.
For example, the same graduates from Qingbei University, the undergraduate graduates have the highest gold content.
Therefore, if students in the third year of master's degree plan to continue to do scientific research, and the current research group or school is relatively average, they will jump to a higher and better platform.
It is similar to: 211 masters go to 985 doctors, 985 masters go to C9 doctors, C9 masters either go to master and doctor, or may go abroad.
If the intention of further study is confirmed, the master graduate usually contacts the tutor in advance.
Because once the contact is late, good tutors are basically robbed, just like undergraduates looking for a job, if it is delayed until the next semester of the senior year and starts looking for a job on the eve of graduation, it will be more difficult to find the job you like.
Moreover, if a master's student chooses to change the school and the research group when studying for a Ph.D., there is a high probability that the direction of specialization during the master's and doctoral period will not be exactly the same. They also need to enter the research group in advance to give themselves and the research group a buffer time.
Including familiarity with the environment of the research group, reading literature in related fields, learning how to use various new experimental equipment, and handing over work with the predecessor.
This can be regarded as a hidden rule in the scientific research circle.
For example, Chen Wanqing and Duan Yun in Wei Xingsi's group, because they have already met the graduation requirements, Wei Xingsi basically ignores them now.
However, there are also research groups that squeeze students to death. The tutor will not give the students freedom until the last minute and sign the graduation opinion.
Graduation in July~EbookFREE.me~ You have to work until the end of June before letting go...
This is too much.
If this is the case, after graduation, most students will choose to stay out of contact with their tutors, and there is a high probability that they will not continue to do scientific research.
Because it has been "badly beaten".
Unfortunately, the status quo is that the proportion of such mentors is not low.
Xu Qiu estimated that at least more than 10% in China.
It's like landmines, buried in major colleges and universities.
PS: The junior undergraduate of the research group is Deng Hu, and the teacher of Hong Kong University and PCE11 materials is Yan Hu. Because the names are similar, I made several mistakes before.
PS2: Once again ten thousand changes, asking for a monthly pass, there are still more than one hundred votes and more than one thousand.
I have a list of chapters of the scientific research assistance system