Chapter 455: Laminated devices, double the "happiness"

After dismissing Wei Xingsi, Xu Qiu entered the inner laboratory and began to prepare for the experiment.
The first is to clean the substrate. He takes out a large ITO glass substrate from the box, breaks it apart to become a small substrate, then tears off the plastic protective film on it, and places it neatly on the holder.
A minute before Xu Qiu started work, Mo Wenlin walked over, smiled and said, "Xu Qiu, let me do the work of washing the substrate."
"Probably because you are afraid that the second article of the article will be snatched away by Wu Shengnan? Xu Qiu guessed inwardly, then turned his head and glanced at her, and said, "Okay, then I'm going to make the solution."
Xu Qiu's opinion of the second work of this layered work can be said to be decisive, because Wei Xingsi generally does not interfere with the author's ordering.
All articles published in the group are basically the main contributors of the article, that is, the decision is made by one.
This is also more reasonable, because the instructor cannot participate in the whole experiment. The perspective of the article is the clearest, and it is clear at a glance who has contributed the most.
Relatively speaking, Xu Qiu is more inclined to make the second work for Mo Wenlin. After all, she participated in the preparation of the laminated device early in the morning.
If Wu Shengnan only helped synthesize materials, he would be able to get three games with a high probability, and his contribution was still a bit low.
There is no way, it can't be a common second game.
As for total unity, Xu Qiu never considered it.
On the one hand, his contribution to this work is indeed the largest, and no second person can match his contribution.
On the other hand, for small articles, even articles like AM and EES, it doesn't matter if Xu Qiu gives others the same thing. He is not lacking anyway.
And this kind of "Nature" article above the level of the big magazine, it is impossible to give up a work at will.
Unless, I can hang up communication in the future.
But even if it's hanging communication, one-to-one communication is much better than one-to-one communication.
However, Xu Qiu is not very entangled.
He can't control what other people think. Anyway, what he can do is to sort the article according to the facts and have a clear conscience when writing the article.
Now that someone had taken care of the cleaning of the substrate, Xu Qiu went into the glove box to prepare the solution.
Several materials from other research groups that he plans to use, including COi8DFIC, are not available in his own hands.
Therefore, the PCE10:-4F system adopted by the top battery at this stage is almost irreplaceable.
Even if you replace -4F with other near-infrared materials in the group, for example, -4Cl or FN-4F, it doesn't make much sense, because they are almost the same.
Therefore, Xu Qiu decided to temporarily fix the effective layer structure of the top battery.
Then, the only part that can be optimized in terms of materials is the J4:PCBM:IDIC-4F system of the bottom battery.
The light absorption range of this system as the bottom cell is about 300-700 nanometers, while the PCE10:-4F system as the top cell has light absorption range of about 600-1000 nanometers.
The light absorption of the two at 600-700 nanometers overlaps, and the degree of overlap is about 100 nanometers. This range is still slightly larger.
Therefore, Xu Qiu plans to replace the IDIC-4F in the bottom cell in order to shift the light absorption range of the bottom cell to a short wavelength (blue shift), so that the overlapping wavelength range between the top cell and the bottom cell becomes smaller. Some, leave some light for the top battery.
However, considering that the IDIC system itself is still good, thick film devices can be prepared to facilitate the regulation of the current of the bottom battery, Xu Qiu does not intend to give up using the IDIC series.
So he decided to use another derivative of IDIC, IDIC-M, instead of IDIC-4F.
Compared with IDIC-4F, the photoelectric performance of IDIC-M system is slightly reduced, but it can also be maintained at the level of 12% and 13%.
The most important thing is that the light absorption range of IDIC-M system has a certain degree of blue shift compared to IDIC-4F.
This is mainly due to the difference between the end groups of IDIC-4F and IDIC-M. The end group of the former is ICIN-2F and the introduced fluorine atom is electron withdrawing, while the end group of the latter is ICIN-M which is electron donating.
If the IDIC-M system is selected, the light absorption range of the bottom cell can be controlled at about 300-650 nanometers, and the overlap range of the light absorption range of the top cell PCE10:-4F system is only 600-650 nanometers, that is, the degree of overlap is only Around 50 nanometers.
The degree of coincidence decreases from 100 nanometers to 50 nanometers, which is reflected in the short-circuit current density of the device, which will almost deviate by 1-2 milliamperes per square centimeter, which can leave a lot of space for the optimization of the top cell.
At the same time, the degree of coincidence only changes by 50 nanometers, which is just right.
Because the performance of the original IDIC-4F system is not bad, the efficiency can be more than 15%, and now we are striving for perfection, choosing small changes and adjusting slowly. If the range of changes is too large, it may be "optimized". The over time, resulting in a sharp drop in device performance.
Not long after Xu Qiugang came up with this idea, the simulation laboratory has started to explore simultaneously, but there is no result yet.
As a result, he conducted synchronous experiments in reality, and he couldn't rely on the simulation experiment system for everything, because a lot of experimental inspiration was generated during the experiment.
Xu Qiu began to prepare the solution.
Among them, the transport layer solution including PFN-Br, zinc oxide precursor, M-PEDOT, and the PCE10:-4F effective layer solution required for the top cell all have the remaining ready-to-use solutions before and do not need to be prepared.
What needs additional preparation is the effective layer solution of J4:PCBM:IDIC-M.
Xu Qiu directly referred to the previous conditions of J4:PCBM:IDIC-4F for preparation.
At the same time, Karen Mok has already started the first step of cleaning the ITO substrate with deionized water, and the ultrasonic cleaner has started to buzzer.
The ITO substrate purchased now is a domestic manufacturer, and the price is relatively cheap. It does not need to be reused like the substrates imported from beautiful countries before, and can be used as a disposable consumable.
In addition, there is a plastic protective film on each substrate, and the surface is relatively clean. Therefore, the steps for cleaning the substrate are simplified by one step. There is no need to use soapy water for cleaning, and directly use deionized water, acetone, and isopropanol. That's it.
After throwing the substrate box into the ultrasonic cleaner, Mo Wenlin walked lightly and silently walked to Xu Qiu's side, and suddenly asked: "Xu Qiu, why hasn't I been working on laminated devices for so long? Come here. Has the efficiency exceeded 15%?"
"Scared me..." Xu Qiu was paying attention, using two tweezers to open the bow from left to right and grab the polymer donor material J4, but Mo Wenlin was surprised and the material flew out directly.
Fortunately, his current tweezers proficiency has reached 40% of Tier 5, one looking back and digging, accurately clamped the J4 material that flew into the air.
Of course, this operation is mostly luck, and there are also factors in which polymer materials are relatively "light" and not easy to land.
Upon seeing this, Karen Mok exclaimed: "Showing!"
"It's not because of you, I almost dropped it," Xu Qiu said grimly: "This piece of J4 is estimated to be 30 milligrams. If converted into soft sister coins, it will cost 300 yuan."
"I know it's wrong." Mo Wenlin stuck out her tongue. She didn't know what was wrong just now, she just wanted to make fun of Xu Qiu.
In fact, in the laboratory, this behavior is still relatively dangerous. It's okay if the material falls, it's just a loss of money.
If you are frightened while doing a high-risk experiment, an experiment accident may happen if your hand shakes.
Therefore, when doing experiments, if you are afraid of shocking other people suddenly, you will usually make some noise first to indicate your existence, and then talk or make physical contact.
Just like Wei Xingsi always "dada da da" every time he walks, with his own BGM, perhaps he also has this consideration, worrying that his sudden appearance will scare the students.
After all, he also knows that in the eyes of students, the image of a tutor is usually a kind of "big devil".
Xu Qiu finished weighing J4, then turned around and asked, "Mo Wenlin, what did you just say?"
Karen Mok repeated what she said just now: "I said...Xu Qiu, why I haven't worked on laminated devices for so long, and your efficiency exceeded 15% when you came to it?"
"Oh, because I'm standing on the shoulders of giants." Xu Qiu naturally wouldn't say, because the results have been obtained in the simulation laboratory in advance.
However, the reason why he decided to directly take out the best conditions, only used three batches of devices to rush to 15%, is also because Mo Wenlin's previous groping process, with the foreshadowing, he directly took the best results without appearing abrupt. .
To some extent, it is indeed, as he said, "standing on the shoulders of giants". If Karen Mok’s devices have been thrown on the street, he will probably have to act, and in a week and a half, he will re-stack the reality. The efficiency of the layer device is 15%.
"Really." Mo Wenlin instantly replaced herself in the role of "Giant R". Although she also knew that Xu Qiu was likely to just talk casually, she was still very happy in her heart.
"Really." Xu Qiu replied in a serious and sure manner. To the girls under her, we should encourage more or more encouragement. Just like a business owner, painting cakes and chicken soup is not necessarily useful, but it is better than not painting cakes and not filling them. Chicken soup might be able to fool people. Believe that there are more fools in the world.
Xu Qiu continued to weigh the PCBM. He searched for a while in the kit and found that there were not many PCBMs left, so he asked, "Is the PCBM almost used up?"
"Yes," Karen Mok responded: "I wanted to tell you, but I forgot."
"Okay," Xu Qiu nodded, "I'll talk to Feifei Wu later."
Usually, you usually buy drugs from domestic reagent vendors. The operation is relatively simple. You can directly contact the other party or purchase through the drug warehouse.
The PCBM in the group has always been provided by NANO-C, a beautiful country company. It needs to be imported, and the procedures will be more complicated. Before that, Feifei Wu was responsible for handling it.
It doesn't mean that it has to be imported, just like the ITO substrate was later changed to a domestic one.
However, on the one hand, because the domestic PCBM is not too cheap, on the other hand, it is also used to use the PCBM of the NANO-C brand, and there has been no problem.
In the laboratory, it is more taboo to change the experimental conditions at will, and the brand of the reagent is also one of the experimental conditions.
Even if the two reagents have the same name, the same molecular structure, and the same purity, they may be very different in actual use.
If the brand is changed rashly, there may be unpredictable situations.
For example, when Chen Wanqing made organic photovoltaic inverted structure devices before, she used molybdenum trioxide evaporation targets.
Once halfway through the old molybdenum trioxide ran out, I wanted to repurchase the original one, but found out that it was out of stock, and it took two weeks for it to be available.
At that time, in order to continue the experiment, she switched to another one. The purity was the same, and the material inspection report was no problem.
However, the performance of the device made is not good, and the efficiency is generally about 2% lower than that of the molybdenum trioxide used before.
Later, the original type of molybdenum trioxide was replaced, and the device efficiency returned to normal.
As for the cause of this phenomenon, who knows?
Maybe it is related to the particles of the target material, maybe it is related to some trace impurities in it, or maybe just bought a bottle of defective products...
These are all possible, and even if you forcefully find the cause, it doesn't make much sense.
Busy, spent half a month, finally found the reason, what is the final gain?
No, it was just a waste of half a month's time.
In the laboratory, Xu Qiuhe and Mo Wenlin were working and chatting.
It wasn't until Han Jiaying entered the laboratory, claiming: "I am a little tired from writing articles, come over and take a look."
The two stopped communicating and went to each other.
Karen Mok turned and left, and said, "I'm going back to write an article."
As a result, Xu Qiu changed a chat partner, and he and his school sister were talking about Dashan while preparing devices.
Spin-coated zinc oxide as the first transfer layer;
Spin-coated PFN-Br as the second transmission layer;
Spin-coated J4:PCBM:IDIC-M of different thicknesses as the effective layer of the bottom battery;
Spin-coated M-PEDOT as the third transmission layer;
Spin-coated zinc oxide as the fourth transmission layer;
Spin-coating PCE10:-4F with different thicknesses as the effective layer of the top cell;
Evaporated molybdenum trioxide as the fifth transmission layer;
Evaporate silver as an electrode.
This is the best processing technology obtained after optimization before, and Xu Qiu directly applies it.
After all, only IDIC-4F is now replaced with IDIC-M, and the processing technology of the transmission layer will likely not be very different.
Working until more than ten o'clock in the evening, Xu Qiu finally completed the preparation and performance testing of a new batch of IDIC-M system laminated devices, and the highest efficiency reached 14.67%.
At the same time, the preliminary results of the IDIC-M system in the simulation experiment came out, the highest is 14.97%, and there is still a lot of room for improvement.
The result of the IDIC-4F system, after many optimizations these days, has now reached 15.32%, and there is not much room for improvement.
Although the efficiency of the stacked devices of this batch of IDIC-M system is not as high as that of IDIC-4F system, Xu Qiu is not very concerned.
He didn't expect to achieve a breakthrough in efficiency with just one device preparation. This time, he tried mainly to verify whether his thinking had any problems.
Now it is only a preliminary attempt. The IDIC-M system has already produced a device efficiency equivalent to that of IDIC-4F, indicating that the current optimization ideas are likely to be correct.
In other words, there is a high probability that the upper limit of the efficiency of the stacked device can be increased, and it may be able to reach more than 15.5%.
As for whether it can reach 16%, it depends on luck.
After completing the first attempt in reality, Xu Qiu mainly intends to leave the simulation laboratory for large-scale exploration of the remaining work.
Compared with ordinary single-junction devices, stacked devices prepared by the dual-terminal method have more than doubled the workload during optimization, and the help of the system can save a lot of time.
Specifically, in a single-junction battery, there is only a single effective layer, and only the film thickness of an effective layer needs to be optimized, and the range of exploration is usually between 80-150 nanometers.
Moreover, for most organic photovoltaic systems, the effective layer thickness is about 100 nanometers. Even if it deviates from the optimal film thickness, it can usually reach 90% of the optimal film thickness efficiency.
If it is not for sprinting efficiency, it can be done less delicately.
However, the laminated device prepared by the dual-terminal method has two effective layers, and the two film thicknesses need to be optimized simultaneously.
The thickness of the two films is double...no, it is the "happiness" of multiplying.
Not only that, but the scope of exploration is also larger. The bottom cell generally needs to be from 50 nanometers to 300 nanometers, and the top cell should be from 50 nanometers to 200 nanometers.
Take the bottom cell with a film thickness of 50-300 nanometers and the top cell with a film thickness of 50-200 nanometers as an example.
Even with very low accuracy, such as 50 nanometers as an interval, it is necessary to make 64=24 sets of devices.
Such a low accuracy is obviously not feasible when sprinting with high efficiency.
Because sometimes the film thickness differs by 10 nanometers, the efficiency may deviate by 0.3% or 0.5%.
Then choose high precision, such as 10 nanometers as the interval to explore, you need to make 2616=416 groups of devices.
In reality, if it is exhausting to do 416 conditions, it may not be possible to do it in a month.
The compromise choice, with 20 nanometers as the interval, also requires 119=99 groups of devices. It is conservatively estimated that it will take a week to complete.
This may be the reason why there are fewer people doing laminated devices, not only the threshold of the processing technology is relatively high, but also troublesome.
It is relatively simple to carry out these optimizations in a simulation experiment system, and one month's workload in reality may be completed in two or three days.
But similarly, the time consumed to explore the performance of stacked devices is far greater than that of previous single-junction devices.
This is the reason why Xu Qiu has not easily replaced the effective layer materials after he determined that the IDIC-4F and -4F systems are used as laminated devices.
After all, every time you change a system, you need to explore it from the beginning, and the time and cost will be very high. What's more, at that time, the structure of the transmission layer was mainly optimized. If a new effective layer system is replaced, the reference will change.
In general, when making a laminated device, a laminated device array needs to be constructed, one side is the thickness of the effective layer of the bottom cell, and the other side is the thickness of the effective layer of the top cell.
When Xu Qiu read the article on stacked devices published by YangYang's research group, he saw that they represented this array as a two-dimensional map. The abscissa is the thickness of the effective layer of the top cell, and the ordinate is the thickness of the effective layer of the bottom cell. Use colors and iso-efficiency lines to mark the device efficiency at the corresponding coordinate points.
In addition, YangYang and the others have also drawn some theoretical analysis graphs on the efficiency of stacked devices.
These graphs are very intuitive, and Xu Qiu decided to apply similar methods to his subsequent articles.
There is no reason why other people have already built wheels.
On Monday, the group meeting.
The perovskite team led by Feifei Wu first reported.
The fabrication and optimization of laminated devices began to operate normally, and they improved their processes based on the experience of organic photovoltaics.
However, because Xu Qiu made a lot of devices last week, other people couldn't grab him, like Sun Wo basically couldn't touch the glove box, so the perovskite team only made a batch of devices last week.
Seeing this situation, Wei Xingsi is also considering whether to relocate the laboratory as soon as possible. Now there are only two glove boxes, and experimental resources are indeed a bit tight.
However, after thinking about the difficulty of relocation, I decided to wait and see.
Fortunately, although perovskite has only a batch of devices, the device efficiency has improved a lot compared to the previous ones, from 8% to 9.6%, which is a small breakthrough.
In addition, based on the translucent device based on two-dimensional perovskite material, Feifei Wu started to organize the article based on the efficiency of 8% and the average transmittance of 30% of visible light, the target journal JMCA.
Feifei Wu writes articles very fast, and within a week, the progress reached about 50%.
At present, the general division of labor of the perovskite team is Sun Wo leading two undergraduates in charge of work, Wu Feifei in charge of writing articles and guiding experiments, and occasionally leaving the field to do experiments.
It's a bit like the organic photovoltaic team led by Xu Qiu.
However, the situation of the two teams is still very different.
On the one hand, Wu Feifei’s team is relatively small, with only Sun Wo, a newly enrolled master student, and two undergraduates, who have insufficient combat effectiveness.
Xu Qiu has two doctors, one postdoc, and three undergraduates. Although Han Jiaying is an undergraduate, she has been in the group for more than a year, and her strength is not bad, at least much stronger than Sun Wo, combined combat effectiveness It is estimated that Feifei Wu and the others more than doubled.
On the other hand, Wu Feifei and her current research progress is difficult to lead in the entire perovskite field, or the subdivided two-dimensional perovskite field, and Xu Qiu is now basically at the top of the organic photovoltaic field. Ahead.
As a result, Wu Feifei and the others are basically leftovers. They can only watch other people eat meat and send CNS. They barely have a mouthful of soup. The upper limit of the article is almost AM. If you want to send it to NC, it is probably a little bit. difficult.
At the same time, this also caused Sun Wo in the perovskite team to basically only take two stably, while basically everyone in the organic photovoltaic team has the opportunity to post one article in one area.
If Sun Wo wants to post an article, he must find the topic himself, because Feifei Wu doesn't have enough articles to publish, so it is impossible to give him the topic casually.
Like the ACSAMI article that Sun Wo posted before, it was already half given to him by Feifei Wu, and he would have to rely on his own efforts if he wanted to post an article later.
But this is a bit difficult for him, a master student who is just getting started.
Of course, the school’s graduation requirement for master’s students is only a Chinese core. Now Sun Wo has an SCI second area. Even if the requirements in Wei Xingsi’s group are more stringent, there is definitely no problem in graduating smoothly, but there is not much pressure.
Sun Wo chose to study for graduate school before. Although he said that he was "seeing whether he is suitable for scientific research", he was actually "avoiding employment."
Now it seems that doing scientific research is not as good as going directly to employment at that time.
However, a lot of the truth is understood only after personal experience. Before there is no experience, even if someone kindly reminds them, they may be regarded as deceiving.
Now that Sun Wo has been on the thief ship, he can only bite the bullet and continue to read. After all, although he is a native of Demon Capital, he is just an ordinary family, unlike Tian Qing who can have a good family.
This is also the reason why many research group tutors can handle graduate students at will. Even if students choose to drop out and other extreme methods, the tutors will only lose some reputation, and the time spent by the students, plus the loss of the status of fresh students, the loss will be Very big.
Unless there is a mine at home, or some stable income-generating method is found in advance, ordinary graduate students really don't have the courage to resist their mentors.
Even if there are grievances, most people choose to endure the situation for a while, and then go to the real-name report after graduation.
Although there is a high probability that it is useless, it is not bad to be disgusted by the instructor, and you can breathe out.
Duan Yun took a few days off this week and went back to his hometown. He said that he was going to have further talks with the vocational and technical college in Taicheng. It seems that he still prefers the work in his hometown and seems to be determined.
It may be because he is older, and his family members also hope that he can work near his home, and not to "toss about" outside. After all, many of the family concepts of the older generation of flower growers emphasize a "return to the roots of fallen leaves."
However, nowadays, many young people's views on "home" have gradually changed. They no longer value the concept of "home" so much.
This may be largely due to the general improvement in the education level of domestic citizens.
The higher a person’s level of education, the more rational he is, and the more inclined he is to be an "independent person", the less restrictive the traditional concept of "home" will be to them.
In a similar situation, now there are more DINK families in society, and the phenomenon of declining births caused by non-planned parenthood is becoming more and more serious. At the same time, even if the second child is released, the birth rate still declines year by year...
The underlying reason is that there are more "independent people" or "rational people".
When people become rational and start thinking, they will find that once they have a child in the current social environment that is fully involved, unless they are "poorly raised", they will definitely greatly reduce their quality of life. After all, children can be Known as the "four-legged gold swallowing beast."
If the child is "poorly raised", and the child does not make up classes and does not register for classes, there is a high probability that he will not be able to compete with his peers. If he loses on the starting line, he will not be able to top the top, and there is a high probability that he will not be admitted to a good university or even a high school. , Can only go to a vocational high school, then in the future the child will have to walk the hard way he has traveled again.
If you choose to grit your teeth and rely on lowering your standard of living to "enrich" your children, will your children in the future be able to become "kings of scrolls"? Will it be able to stand out?
Not necessarily, because your child’s opponents, their parents may have the same ideas as you.
It's like everyone says "Too curled, I'm going to lie flat", but they may be secretly exerting force behind their backs.
There is no way, the reality is like this, the internal scroll exists objectively, and I can't change the reality, so I can only change myself.
As long as I become the "king of scrolls", I will survive, regardless of other people's floods.
In other words, "independent people" or "rational people" are more self-interested. They will weigh the pros and cons and choose the best way of life for them.
The conclusion about childbirth is that "children is not good for oneself", so many "independent people" or "rational people" choose not to have children.
But when putting this tendency into action, there is a high probability that you need to withstand the pressure of "home", after all, this does not conform to the concept of the older generation.
For "independent people" or "rational people", the pressure of "home" is relatively small for them, and there is a greater probability that they can withstand it.
The final form of expression is the diminishing and declining birthrates of today.
However, if all people in the country do not have children, then there will be a labor shortage in the future, followed by the aging of the population, everyone suffers together, delayed until retirement at the age of 70 or 80, and then the speed of the country's development slows down and stagnates. Even fell into recession.
In the future, when flower growers enter the ranks of developed countries, they may also evolve into the current appearance of developed countries such as neon in Europe and the United States. The entire society is very polarized:
The rich at the top desperately gave birth to children, in order to select an excellent heir, so as to stabilize the wealthy class where his family belongs, so as not to be "rich for three generations";
The poor at the bottom are also desperate to give birth to children. Anyway, all of them are poor. If there is one who can "turn a pheasant into a phoenix", it will make blood. It is also to prevent their family from being "poor for three generations" (extinction);
The middle-class middle class understands their own situation very well. After rational analysis, many people choose not to have children, and the willingness to have children is the lowest.
Tian Qing still maintains a slow pace, writing an article about the work of "Research on the Charge Transport Mechanism of Non-fullerene Systems with Linearly Varying HOMO Energy Level Differences". The current progress is 40%, and the target journal is ACSAMI.
Chen Wanqing doesn't have any sense of existence anymore. She spends most of the time on the Blue River. However, the elder sister seems to be in a relaxed state. It is probably easier to go to the company to work than to work in the laboratory.
Xu Qiu was chatting with a senior student who graduated with a Ph.D. from the Department of Materials Science and Engineering at Magic University.
After graduation, this senior went to a large company to do research and development, with an annual salary of 40W. The work intensity of the research group before graduation was equivalent to that of Wei Xingsi, almost 8106.
When Xu Qiu asked her: "Is it hard to move bricks in the laboratory or go to work 996 hard", the other party smiled and said without hesitation: "It is hard to move bricks in the laboratory."
Xu Qiu didn't ask for the specific reason, but based on his own experience, he can roughly figure it out.
On the one hand, it may be because there is money to work in the company, but almost no money to move bricks in the laboratory, even if the work intensity of the two is the same, the feeling is different;
On the other hand, it may be that doctors are relatively scarce. Generally, the doctors recruited by the company will have masters and undergraduates to help them work. The doctors themselves basically don’t need to do much physical work. They only need to direct their subordinates. In the general direction, just deal with some key issues.
In the laboratory, there is not much difference between doctoral students and master students, they are all coolies to move bricks.
Just like in Wei Xingsi's group, there is not much difference in work intensity from undergraduate to master's, to doctoral and post-doctoral students.
The work intensity of doctoral students may be higher because of fewer courses and the pressure of graduation.
Xu Qiu did not report. On Sunday, he had already shared the results of his experiment with everyone.
Han Jiaying continues to write articles on H5 donor materials, the target journal JMCA, the current progress is 50%.
She talked about some characterization data of the PTQ1 material at the group meeting, including the NMR data that had been sent for samples before being processed.
Although there is almost nothing that can be analyzed for nuclear magnetic experiments like polymer materials, according to convention, these experiments need to be done, and Xu Qiu sometimes secretly speculates about this. Maybe the instrument manufacturer and the journal company are in collusion behind it?
Now that PTQ1 works, the completeness of the data is about 85%, only the light source data is missing.
Wu Shengnan received a new task to synthesize several receptor materials including COi8DFIC, as well as her own system FOIC.
The application form for the Jieqing Fund that she is responsible for is almost complete, just enough to free up energy for experimentation.
After all, posting articles is the focus of her postdoc.
Of course, writing books cannot be said to be unimportant.
In the future, if Wu Shengnan wants to become an independent scientific researcher, he has to write a book alone and apply for a project.
As long as the results are not at a shocking level, the quality of the book will still affect the application of the project to a large extent.
Even if you want to apply for funding abroad, you need to write an application.
In short, to engage in scientific research, pen skills and experimental skills are equally important.
Because Xu Qiu took over the preparation of the laminated device last week, Mo Wenlin didn't do much experimentation, and concentrated on sorting out the work based on the J2:PCE10:-4F system, the target journal AFM, and the current progress is 30%.
Finally, several undergraduates reported that because of the approaching exam week, they collectively stated that they would come here less frequently.
Several undergraduates have not yet written an article. UU read www.uukanshu.com, but there are some articles written in the name of three, four, five, six, seven.
Yin Houlang and Xu Xinjie of the Organic Photovoltaic team have written more articles, which makes Yu Ya and Deng Hu of the perovskite team particularly envious.
But they couldn't help it. Xu Qiu picked them at the time, and they could only passively choose to accept it.
In fact, they also know in their hearts that their apparent level, such as English grades and grade points, is indeed worse than Yin Houlang and Xu Xinjie.
Sometimes, when an opportunity comes, but it is missed because of lack of one's own ability, it is indeed quite a pity.
However, having said that, in fact, perovskite is not bad here. In terms of academic achievements, it can at least exceed 80% of the research groups.
After the group meeting, Wei Xingsi said, "Xu Qiu, Lan He has something to discuss with us. I'll drive you there in the afternoon."
High-speed text hand typing I have a list of chapters of scientific research assistance system