Chapter 472: Sun Wo: "Why is it always me who is injured..."

After determining the specific relocation date, in the next few days, the small partners in the research group did not conduct experiments, and were mainly busy preparing for the relocation of the Handan Laboratory.
Similar to the relocation of Zhang Jiang's laboratory last time, there are also many tasks in the relocation of Handan Laboratory this time, and many of them are troublesome.
First of all, it is the packaging of instruments and equipment.
At the beginning, the instruments in Zhang Jiang's laboratory were mostly glass instruments, or fool-like instruments, which could be used as soon as they were plugged in.
The Handan Laboratory has not only a large number of instruments, but also a very high level of complexity.
For example, TRPL, CELIV, TOF and other instruments need to be connected with a few or more than a dozen lines. Once a line is connected incorrectly, the instrument will most likely not be used normally, and the instrument may even be burned out.
Therefore, before each instrument is unpacked, two people must be present to record the connection mode of the line by various means.
Fortunately, Wei Xingsi's research group now has an advantage, that is, it belongs to the "first generation research group", that is, the "old people" of the research group have not left yet.
As the saying goes, "There is an old family, if there is a treasure", such as Wu Feifei, Chen Wanqing, Xu Qiu and others, have basically participated in the construction of the laboratory from scratch, and are very familiar with the various instruments and equipment in the research group.
If it is a research group that has been developing for many years, newcomers use the instruments set up by senior elder brothers and sisters who have graduated in the past. It is likely that they will not understand the details of some instruments so clearly, and there is no probability that they will encounter unexpected situations Know how to solve it.
Although it was cool to use wheels that other people had already made, but when something went wrong, it was very uncomfortable.
Secondly, the moving process also involves the disposal of medicines in the glove box.
At the beginning, most of the medicines in Zhang Jiang's laboratory were relatively "rough", and there was no problem in keeping them in the air for a long time.
Many of the medicines in the Handan Laboratory, especially the optoelectronic materials, are kept in the glove box.
Once they leave the nitrogen environment, they will deteriorate immediately, not to mention, but there is a certain probability that they will be compromised in terms of performance.
For example, these optoelectronic materials can easily produce devices with 12% efficiency in Handan, and put them in the air for a few days, and then transfer them to the Jiangwan laboratory to prepare the devices under the same conditions. Maybe only 10%, 11%.
The most important thing is that this decline in efficiency is a manifestation of results.
To find out what causes the degradation of performance, it is necessary to repeatedly prepare the device.
But even if the device is repeatedly prepared, the reason behind it may not be discovered.
For example, Xu Qiu’s current organic photovoltaic laminate device uses a total of more than a dozen materials, including the transmission layer. If one or two of the materials have deteriorated, I want to find out which material has the problem. Difficulty, anyone who has learned permutation and combination should know how difficult it is...
If each experiment uses the controlled variable method to control a variable individually, there are thousands of possible situations in the end.
What's more, the problem is not necessarily the material, it may also be other aspects, such as the failure of the vapor-deposited crystal oscillator, resulting in inaccurate thickness calibration, etc...
Therefore, when a situation arises, in many cases, the experimenter will not find the reason, but choose to directly replace all the cheap materials with new ones, and then find the reason for the problem in the experiment, which can save a lot of time and cost.
In order to solve the storage problem of the drug transfer process, Xu Qiu and the others finally found a way after discussion-
That is to block all these medicines into the vapor deposition chamber of the vapor deposition glove box, then first evacuate the vapor deposition chamber, and then fill it with nitrogen at atmospheric pressure.
In this way, the medicines stored in it can enjoy the protection of nitrogen, and at the same time, some liquid medicine containers will not be crushed due to the negative pressure environment.
In the laboratory, excessive positive pressure is terrible. For example, most explosions are caused by excessive positive pressure.
But in fact, the vacuum environment in the laboratory, or negative pressure, is also terrible.
Because many glass instruments are used in the experiment, and some glass instruments have limited bearing capacity for negative pressure.
For example, water pumps are usually used in rotary steaming, and oil pumps with stronger vacuuming capabilities, or mechanical pumps, are rarely used.
On the one hand, because in most cases, the pumping capacity of the water pump is enough to remove the low-boiling solvent from the bottle.
It is really impossible to add some heat to the rotary steaming flask. At 70 or 80 degrees Celsius, toluene with a boiling point of about 130 degrees Celsius can be pumped for a half hour and it can be cleaned.
On the other hand, it is also because if a pump with a stronger vacuuming capacity such as a mechanical pump is used, some glass instruments may be "exploded".
If unfortunately a bottle is exploded, and the glass of the fume hood where the rotary steaming device is placed is not pulled to the bottom, it is very likely that the experimenter will eat a "shard glass grenade."
Although there is a high probability that this kind of debris won't blow up people, the disfigurement basically didn't run away...
In addition to rotary steaming, the transfer compartment of the glove box in the laboratory needs to be vacuumed three times when transferring items, which also faces the problem of negative pressure.
For example, some bottles with relatively poor carrying capacity, especially those with low boiling point liquids in them, may explode.
For example, when Senior Sister transferred the wipe solvent from the outside of the glove box to the inside, she exploded a small bottle of methanol.
Because of the previous vehicle's visa, when other people in the laboratory were transferring liquids, they would not pump the vacuum in the transfer chamber to a very low level every time.
I'd rather leak a little air in, than risk exploding.
Solvents such as methanol are okay, they are cheaper, and if you lose it, you lose.
If it’s a solution that took a few days of hard work to get, if it explodes, then it’s a big loss.
In addition to disposing of the medicines in the glove box, the research team also faced the problem of rebuilding the spin-coated glove box during this relocation.
Therefore, it is necessary to empty everything inside the spin coating glove box.
In other words, a major inventory of the spin-coated glove box is required.
The vapor deposition glove box is not necessary, just let the moving company pull it over.
Although the spin-coated glove box is cleaned every day in theory, there is a lot of mess in it.
Because there are many public areas inside the glove box, most people will not help others to pack things in the public area.
If you kindly helped others to throw away one or two solution bottles, and finally found out that what was lost was the results of other people's hard work for a week, then it is estimated that it would be a real PK.
Of course, this kind of thing really happened, and there is a high probability that only the sufferer will be the victim, but the perpetrator will not be found...
However, in fact, I can't blame others for this, and my own responsibility may be greater.
Anyway, after the experiment is over, Xu Qiu will receive the things he will use later in his lock box, instead of choosing to put it in the public experiment area.
When others throw things, it is impossible to open your box and throw away the contents, unless there is a grudge.
Now we need to clean up the glove box. What we have to do is to put all the medicines, solution bottles and other items that they need to use in a large lock box, collect them, transfer and store them in the evaporation gloves. In the evaporation chamber of the box.
The remaining unclaimed things are all treated as garbage.
Among them, in addition to some real garbage, such as empty reagent bottles and used pipette tips, there are also many solutions that have not been used up before, which are packed in small brown bottles.
Not to mention, the number of small brown bottles of this residual solution is quite exaggerated, exceeding 100 bottles.
The main reason is that the solution has the best use time, and most of them are ready-to-use, so the solution that has been prepared for more than one month is rarely used.
And these "expired" solutions are usually not dealt with because they are afraid of trouble, and they choose to pile up in a corner of the glove box.
At the same time, people may also have thoughts like "what if they will be used later".
But now they must all be dealt with.
However, the procedures for disposing of these waste liquids are still a bit cumbersome, and they cannot be discarded without thinking.
It is necessary to open the solution bottles one by one, and then sort and collect the internal waste liquid according to the type of solvent.
In the end, after Xu Qiu and Wu Feifei discussed, Sun Woxi proposed this task.
Because the other undergraduates have already run away, and the newcomer Fan Wentang is not yet familiar with the laboratory, so the two of them think about it, and only Sun Wo is the only one.
In addition to the packaging of equipment, the handling of drugs in the glove box, and the large-scale inspection of the glove box, Handan also involves the transportation of hazardous chemicals, and needs to apply for permission and review to the department.
This kind of communication with colleges and departments is naturally handed over to Wei Xingsi.
These days, the situation in the laboratory is that the students are busy, and Wei Xingsi is also busy.
Even Teacher Wei and Xu Qiu had complained about it: "If I knew it, I would arrange the moving plan later, and wait until the Chinese New Year comes back before moving."
However, everyone knows that this is just a complaint. Now that the relocation has been decided, there is no turning back.
Moreover, if things like moving are delayed, the experiment may be interrupted for a month or even longer. It must be moved as soon as possible.
On Friday, Xu Qiu and Wu Feifei were in charge of receiving the sales team sent by Magic City Glovebox Company.
The other party sent four people, including an engineer, nearly 40 years old, wearing cloth work clothes with a pen in the pocket of the upper body of the work clothes, and wearing a military green cloth cap.
Xu Qiu guessed blindly that the other party was wearing a hat to cover up the possible "blank" on the top of his head.
There is also a sales assistant, a young woman, dressed as a white-collar OL. It seems that he is less than 25 years old. It is estimated that he is a college student who has just graduated from university. Of course, it may also be well maintained and young.
In addition, there are two younger brothers who are in charge of miscellaneous tasks, and basically do not communicate with Xu Qiu and the others.
The first stop of the glove box sales team is Handan Material No. 216.
They first learned about the specific requirements with Xu Qiu and Wu Feifei, and then took a ruler to measure the condition of the glove box on the 216 side, recorded a series of parameters, and took some physical photos of the glove box.
The second stop was Jiangwan Xiancai 522. They inspected the situation there and also took some photos.
At three o'clock in the afternoon, the glove box sales team and Xu Qiu and the others finalized the final design after some discussions.
The final version of the design drawing was only modified from Xu Qiu's previous design drawing, but the changes were not significant.
On the one hand, the original 1.2-meter box has now been replaced with a smaller 1.1-meter box. This is also part of the reason why Wei Xingsi went to talk about the price and can discount the 2W soft sister coin.
In fact, Wei Xingsi's research team does not have high requirements on the size of the glove box. Even if the length is made smaller, such as 1 meter, it is not impossible.
After all, these two new glove boxes only need to be spin-coated, and there is no need to put a balance inside, just a glue spreader, which is very space-saving.
However, the glove box has a size limit. The length of 1 meter is basically the limit of the double glove glove box. If it is made smaller, the two gloves will not fit and can only be operated with one hand. Glove box...
On the other hand, the glove box sales team proposed that a "skylight" with the same diameter but inclined at 45 degrees can be opened in the middle of the transfer compartment between the two glove boxes. This design makes it easier to pick and place items.
In addition, the two new large cabins for spin coating glove boxes can also choose not to be opened on both sides, but open between the spin coating and the solvent glove box like the small transfer cabin, and also use a 45 degree inclination angle. Open a "skylight".
These two suggestions are still relatively good, so Xu Qiu and the others chose to adopt them.
The new design drawing, compared with the previous large cabins on the sides of the two glove boxes, uses the old design drawing with a 1 meter 2 box body, which can save about 1 meter 4 of length space.
In this way, the vapor deposition glove box can be placed in a row with the three-row glove box, instead of putting a capitalized
τ
as before, it looks more beautiful.
After finalizing the final design drawings, everyone returned to Handan again and signed a contract in Teacher Wei’s office.
The sales assistant of the glove box company said:
If we schedule the schedule here, we will not start work until the eighth day of the new year after the new year. At that time we need to come over and pull the glove box away.

Wei Xingsi had no opinion, and then the task was handed over to Sun Wo who lives in the magic capital.
Sun Wo's heart: "Why is it always me who is hurt..."
After sending away the glove box sales team, Wei Xingsi saw that the preparatory work for the move in the laboratory was almost done, so he organized a temporary group meeting.
The perovskite team first reported that the tin-based two-dimensional perovskite system, and the ACSEL review written by Feifei Wu and Sun Wo, the current progress is 80%, and it will definitely not be completed before the holiday.
Because this year’s winter vacation lasts for a month, Wei Xingsi said in
good faith
: "Wu Feifei, Sun Wo, you go back during the Chinese New Year, take the time to write the summary again. When the holiday is over, we will come back and change it again. Cast it."
What else can Wu Feifei and Sun Wo do? Had no choice but to respond.
In fact, the remaining workload of their review is not too large. If 20% is allocated to two people, with a little bit of light, it can be done in two or three days.
Compared to the "earned" two-week vacation, this effort seems worth it.
In addition to the review, the progress of the perovskite team's experiments in the past two weeks is almost zero.
In the first half, Xu Qiu and the others were hitting the stacking efficiency and occupying all the resources of the laboratory. In the second half, they began to organize the laboratory and prepare to move. There was no time to start work.
Duan Yun did not report.
Teacher Wei kindly reminded: "Duan Yun and Chen Wanqing, you should hurry up to write your graduation thesis. After you accept the leave, show it to me, and I'll change it for you."
In fact, both of them have finished their graduation thesis now.
After all, I have published so many articles, and I only need to translate my work from English to Chinese to write a graduation thesis. The difficulty is very low.
In other words, they are only one defense before graduation.
As for defense, as long as the workload is increased, and supported by SCI articles and graduation thesis, it is generally difficult to fail, unless the tutor distracts from it.
Tian Qing reported on the research work on the charge transport mechanism of stacked devices in the past two weeks:
"I have sent samples to Feng Shengdong in Sweden and Ronald in Finland, but I haven't received the results yet..."
"My own work has made preliminary progress..."
"But a complete story has not yet been formed, and more experimental data is still needed to tell the story..."
Xu Qiu's feeling was probably "I'm doing it, I'm doing it, but I still have to do it well." The specific degree of completion is not very well defined.
The experiment Tian Qing did was actually relatively easy. She directly used Xu Qiu and the others to prepare ready-made devices and perform CELIV and TOF test operations.
Moreover, because Xu Qiu improved the pattern of the ITO substrate used in the laboratory, it is now more convenient to test CELIV and TOF.
Like the imported fixed-area ITO substrate, the effective area is only 0.09 square centimeters. When testing CELIV and TOF, it is necessary to repeatedly focus the light so that the light spot hits the effective area of ​​the device.
Otherwise, if the laser does not irradiate the battery device exactly, the signal cannot be obtained.
Now this battery device with an effective area of ​​2 square centimeters does not need to be aligned.
Because the diameter of the laser spot is about 5 millimeters, which is about 0.2 square centimeters of area.
Just let the laser be directed at the device, and you are not afraid of it.
Chen Wanqing brought some news from Blue River.
Now Blue River has developed the second-generation squeegee coating machine, which has been basically debugged and plans to go on the market officially. The price has risen by 20% compared to the first-generation machine.
Wei Xingsi did not intend to continue to purchase the second-generation squeegee coating machine, and now there is a first-generation squeegee coating machine in the group that is basically enough.
The most important thing is that there is really not much equipment fee in the group that can be reimbursed.
In addition, the recent sales momentum of Blue River Optoelectronic Materials has indeed fallen.
This is also normal. In addition to the fact that the market is temporarily saturated and competitors have reacted to these reasons, it may also be related to the fact that universities have begun to take holidays one after another.
Xu Qiu's team did not report, and if the "Science" article was written and submitted, he could be regarded as successful.
Originally, he planned to write a few articles about Y series materials before the winter vacation, and then cast them out.
It now appears that there is not enough time to finish writing at all, and we can only talk about it after the collection of falsehoods.
Perhaps the wish of many researchers is to completely ignore other miscellaneous things and devote all their energy to scientific research.
But in reality, this is almost impossible to do.
Unless the ability to use money is used, such as hiring a bunch of research assistants to help with chores.
However, most research groups do not have this strength and have to allocate various chores to the students.
In addition to helping Xu Qiu prepare the laminated device, Han Jiaying has not lost her work. The PTQ1 work article, the target journal AM, has been written and submitted for submission.
Wu Shengnan has shifted the focus of her work to Y series materials. She is now in charge of the Y1-Y4 materials previously developed by Xu Qiu, as well as the various characterization work of the Y5-Y7 materials she synthesized.
She reported on the latest progress at the group meeting.
Most of the characterization data that needs to be performed outside the research group, except for the light source and other difficult to measure, have already been obtained.
The characterization tests that can be carried out within the research group are almost supplemented, including light absorption, energy level testing, photoelectric performance testing, and so on.
Of course, these data are only the results of preliminary tests, and may need to be re-tested when the article is actually written.
At present, the best-performing system is still Xu Qiu's J4:Y3 system, which was achieved 14.60% by Wu Shengnan, and the efficiency of the three systems she designed and synthesized by herself still generally stays at 13%-14%.
As for the article, Wu Shengnan hasn't started writing for the time being, because he has to be responsible for the characterization test of seven systems at the same time, and the time is relatively tight.
In fact, most of the data are now available, and the story is not difficult to tell. It is completely possible to start writing the article directly. Occasionally, the lack of a characterization will not have a big impact. Write the article first, and then add the characterization. That's it.
I just don't know if the post-doctorate sister is going to fight for it, she will burst her liver during the Chinese New Year, or she will write after the holiday.
Perhaps, fighting it now is a better opportunity.
The reason why efforts are not necessarily successful is that the rates of return obtained are different for different periods of effort.
In other words, most of the time, the profit rate of effort for individuals is very low.
At this stage, Wu Shengnan's hard work under Xu Qiu is a high-efficiency effort. The more you do, the more you will gain in scientific research.
Although it is definitely not as good as that kind of big-name research group, it has stabilized a CNS after "four or five years in jail", but after two years of hard work and changing six or seven SCI articles, it can exceed 90% in terms of scientific research results Associate professor.
Finally, Mo Wenlin did not report. During this time, she was mainly helping Xu Qiu to conduct experiments related to the "Science" article.
Several undergraduates have already gone home early and did not participate in the group meeting.
After all, today is the nineteenth of the twelfth lunar month. In a few days, the twenty-third of the twelfth lunar month will be the small year in the north, and the twenty-fourth of the twelfth lunar month will be the small year in the south.
In the concept of some families, when it comes to a young year, it is considered to be an official Chinese New Year, and a family reunion is needed.
Fan Wentang insisted that he hadn't gone home yet, and Wei Xingsi also asked him to prepare and report the recent results.
Speaking of it, Fan Wentang has basically been in a free range during the period when he came here. There have not been many direct exchanges with Wei Xingsi. Xu Qiu or Han Jiaying led him.
Therefore, he is also relatively fictitious. Now that he has an opportunity to show it in front of his mentor, he will naturally not let go of this opportunity.
Fan Wentang summarized and reported the organic photovoltaic-related documents he read during this period, mainly in the research group, because the authors of the article were all sitting below, he was a little nervous.
Xu Qiu heard it and felt that Fan Wentang's understanding of the organic photovoltaic field and the ITIC-type non-fullerene system is not problematic in the general direction.
Although there are occasional minor deviations, they are only minor flaws.
For a prospective doctoral student, UU reading www.uukanshu.com he performed very well.
Wei Xingsi was also quite satisfied with Fan Wentang. He just commented at the end: "Fan Wentang, your reporting time can be shortened appropriately in the future. One person will spend more time talking than others combined."
"Okay, I will pay attention in the future." Fan Wentang nodded awkwardly, mainly because he didn't know the rules of Wei Xingsi's research team.
The group meeting of his original research group was arranged on Saturday morning, and then it was held once a month, one day at a time. What he did this month needs to be stated clearly like a diary.
Everyone may have to report for half an hour, which means driving from morning to night, so he prepared a PPT based on the standard of the previous research group.
After the group meeting, Wei Xingsi gave everyone a red envelope, which is probably a year-end bonus?
The thickness of each person's red envelope is different. The red envelope in Xu Qiu's hand seems to be the thickest one.
High-speed text hand typing I have a list of chapters of the scientific research assistance system