Chapter 337: School sister 1 shame before snow

Xu Qiu walked to the corridor alone and dialed Xiao Wu's phone.
"Hello, I am a student of Wei Xingsi's research group at Magic University."
"Oh, Teacher Wei mentioned to me before that your new laboratory in Jiangwan is going to be renovated, right."
"Yes, I want to ask you when it is convenient, come over and meet and discuss the plan."
"I have been here in Jiangwan for the past month and received several decoration orders for the Chemistry Department and the Materials Department of your school."
"That's OK..." Xu Qiu pushed the time back a bit after considering Ronald's coming next week: "The time is tentatively scheduled after July 10."
"Okay, okay, you can call me ahead of time when that happens."
Later, Xu Qiu called Lao Wang and Manager Hu respectively, and they both made appointments in mid-July.
After Xu Qiu made three phone calls, the work of the other three was completed, none of which was too difficult.
Feifei Wu mopped the floor with the mop on the other side of the bathroom. The mop in the bathroom here is fairly clean, unlike the mop on the first and second floor, it smells like...
On the basis of the original sketch drawn by Xu Qiu, Duan Yun added a lot of annotations, including the actual size of the room, the location of water pipes, ventilation ducts, and electrical boxes.
Mo Wenlin also used her Fruit 6 mobile phone to take hundreds of real-life photos, which can be used to reproduce the scene of the room and keep it for backup.
"Next, where are we going, go straight back?" Duan Yun asked, while playing with the tape measure in his hand, pulling it out, putting it back, and pulling it out again...
"Yeah..." Xu Qiu thought for a moment, and said, "First, go and look at 513 Teacher Wei's office, and then go to the student office on the fourth floor downstairs."
"I agree." Wu Feifei said: "Let's check first to see if the student office is better."
Mo Wenlin had no objection, and nodded in response.
After turning off the lights and doors of 520 and 522, the four of them walked to door 513 and found that the door here was locked, and although it was also a glass wall, there was a layer of frosted sticker on the inside, and there was no way to see it. Knowing the situation inside may be due to the office.
Xu Qiu and the others had no choice but to give up and went down the stairs next to the fourth floor, and then walked a few steps to reach Room 401 of the student office.
The door is not locked here, but there is no one. The overall interior looks like a cubicle with more than 20 seats and has not been cleaned. If you move here later, the discussion in the group will not look like before. It is convenient to be in Caiyi 216, because it is necessary to pay attention to not affecting other people.
At this time, Xu Qiu found that there was a small room inside room 401, so he greeted others to come over.
The small room is separated from the large office outside with a door. The inside is also not cleaned. It is about 20 square meters, has five or six desks, and can seat almost 10-12 people.
[Reading benefits] Pay attention to the public.. [Book Friends Base Camp], read books every day and get cash/points!
"This room is good." Wu Feifei looked at and said with satisfaction.
"Well, go back and ask Teacher Wei to apply." Xu Qiu nodded.
After stepping on the spot, the four of them took the school bus back to Handan campus again, and returned to the first floor of the materials, and reported today's situation with Teacher Wei.
The work of the new laboratory was temporarily completed, and Xu Qiu left the work of organizing the instrument size and drawing the schematic diagram to Han Jiaying, Mo Wenlin and Duan Yun. He continued to organize the IT-4F and Two tasks of IT-DM.
The two tasks this time are different from the previous two tasks based on ITIC. The characterization has not been completed yet, and the time consumption may be more.
Time flickered, and a week passed in a blink of an eye.
Weekly meeting.
The new system developed by Feifei Wu himself has some bumpy roads. There is no breakthrough for the time being. The performance of the two-dimensional perovskite devices using butanediamine, hexamethylenediamine, and octanediamine as organic spacers is very low, the highest is only 4% It is necessary to optimize the processing conditions.
Wei Xingsi was not harsh, and patiently encouraged her a few words.
Tian Qing was mainly responsible for liaising with Finnish Ronald last week and handling other matters, including making posters, putting up posters, booking meeting rooms, making exchange PPT, etc. Therefore, the experiment was suspended for a week.
Wei Xingsi asked: "Have Ronald checked the flight tomorrow? When will he arrive at the magic city?"
Tian Qing replied: "After checking, he is expected to arrive at Pudong Airport at 10 o'clock tomorrow morning."
"Okay," Wei Xingsi nodded, "Tomorrow, I will pick up the plane. On Wednesday, I will take the foreigner out for a stroll. On Thursday, I will exchange all day. On Friday, he will fly away... By the way, Xu Qiu and Tianqing, you guys. Are both free on Wednesday?"
"Yes." "I'm free." Xu Qiu and Tian Qing responded.
"Okay, then you two will be together then," Wei Xingsi said.
Duan Yun's article on JMCA has been voted, and another article by ACSAMI is still being written.
Chen Wanqing looked triumphant and began to report:
"Last week, I modified on the basis of the synthesis and synthesized three non-fullerene receptors--4F, ​​-4Cl and -DM. The synthesis route is...
Among them, the light absorption properties of both -4F and -4Cl receptors are red-shifted, and the absorption band edge reaches nearly 1000 nanometers, which achieves good light absorption complementarity with PCE10 donor materials. In addition, Energy level has also been reduced, reducing energy loss...
In the end, the highest photoelectric conversion efficiency of the PCE10:-4F system reached the poor performance of the system and the highest efficiency was only 8.29%..."
I got the -4F materials from my sister on Friday, and only made a batch of devices on Sunday.
Although the efficiency data seems to be only 11%, Xu Qiu’s simulation laboratory has found that the efficiency of the PCE10:-4F system has broken the existing world record that has been maintained for more than three years.
Xu Qiu still remembers that when Xu Zhenghong’s IDTBR system came out, and after Chen Wanqing’s IDT-ICIN system’s 6% efficiency was blocked with an efficiency of 10%, she reported that
the results show...the results show... ......" Today, it is finally a wave of disgrace.
Of course, this value is difficult to repeat in reality at this stage, because in the simulation laboratory, Gong Yuanjiang’s row glove box is used, which is 0.3%-0.5% higher than the normal value. Of course, this result is recognized by the system. .
On the other hand, Xu Qiu clearly found that after the efficiency value reaches 12% or more, it becomes more difficult to increase it further, like squeezing toothpaste.
The main reason is that the structures currently used are relatively similar, and the receptor materials are basically derivatives of ITIC. Perhaps the potential of this system has been tapped seven or eighty eight, and I want to achieve a major breakthrough. It requires major adjustments based on the existing structure.
However, now that the efficiency is already there, Xu Qiu still has several optimization schemes based on ITIC materials that have not been used to further improve the performance of the device and make the efficiency reach 12.7%. It should not be difficult to complete the task, it is a matter of time.
Xu Qiu has nothing to report. After finishing the design of the new laboratory last week, he has been organizing data, processing data, writing articles, and instructing Mo Wenlin and Wu Shengnan to do experiments.
To write four articles in a row, the writing is not smooth, just like DEBUFF with -20% work efficiency.
But you can only bite the bullet and write it down. For things like articles, you can vote early and get at ease, and those late will change.
The same job, if it is invested now, may be AM. After three months, it will become AEM. In the past six months, it will become JMCA. In the past year, it may become someone else’s job. Even ACSAMI can’t even post it. ...
Next, Han Jiaying reported that she also smiled: "The efficiency of the system was reached last week. In addition, the synthesis of the planned PBDB-TF failed because the fluorination reaction did not lift the fluorine atom up. Later, she planned to try again. Another PBDB-TS was successful, the synthetic route...
The device test results show that the performance of PBDB-T is equivalent to H22, and that of PBDB-TS is equivalent to H43. The efficiency of the system is also up to now. Among several ITIC derivatives, IT-4F has the best performance. The combination of donor materials showed good device performance.
Wu Shengnan's report was quite satisfactory. Her FN-4F system characterization data was basically completed, and she began to prepare the article, and the experiment was considered idle.
How could the postdoctoral post in the group be idle? Even Xu Qiuken and Wei Xingsi would not follow it. After all, it was spent. Xu Qiu didn't know the exact amount, but the market price was almost 20,000 yuan a month.
Therefore, Xu Qiu arranged a synthesis task for her, which was based on ITIC's further optimization. There were three paths before.
One of them is to control the structure of the D unit of the main chain. This method is relatively troublesome to synthesize, and may be the key to further breakthroughs in efficiency. However, at this stage, it is relatively difficult to predict the impact of structural changes on performance in advance. If some new structures are made, there is a high probability that the performance of the device will not increase but decrease, so it is temporarily shelved.
The other two paths are:
For the side chain control of ITIC, Xu Qiu gave three target structures, ITIC-Th with the side chain benzene ring replaced with a thiophene ring, IDIC with the side chain benzene ring replaced with an alkyl side chain, and para-hexylbenzene The side chain of the group was changed to the side chain of the meta-hexyl phenyl group, m-ITIC.
For the regulation of ICIN receptor units, we have tried difluoro, dichloro and dimethyl before, now we are trying monofluoro, monochloro and monomethyl, and the target structures are IT-2F, IT-2Cl and IT-M.
Xu Qiu estimated that there is still nearly a month before the August holiday. The six materials that Wu Shengnan is responsible for are almost just synthesized, and at the same time, it does not affect the writing of the article in her hand. UU reading www.uukanshu.com
Finally, Mo Wenlin reported some basic representations of the three ternary systems. During the reporting process, she occasionally thought of the three articles coming soon, and she couldn't help but smile implicitly.
Because Mo Wenlin has master's research experience, many commonly used characterization equipment can be used, so she is very quick to learn by hands-on practice. After three weeks in the group, she has basically mastered the preparation, testing, and characterization of devices. Series process, became a skilled worker.
Xu Qiu is very satisfied. The two new leek seedlings are growing well.
There are many good news in the organic photovoltaic field, and Wei Xingsi is in a good mood. He waved his hand and said:
"This year our group's summer vacation will be extended for three days. I will take you out to play for three days."
PS: Recently, the physical condition is not so good. The 6,000 words are barely enough. Look for a chance to break out next week.
PS2: This week, the recommended ticket has broken 3000. I saw a few 70, 80 recommended votes... Then add 3000. The monthly ticket is currently 1100+. The total owed is 3W7, 2W8 has been paid, and 9K is still short.