Chapter 316: This scene in front of me is a bit familiar

Xu Qiu remembered the instructions given to simulation experimenters before, that is, to synthesize seven ADA-type non-fullerene acceptor materials including IT-4F, IT-DM, FNIC-4F, etc., and prepare devices and explore optoelectronics. performance.
Three or four days have passed and it should be completed. After all, it is a simulation experimenter who can perform multi-threaded work at the same time, and it is still running 24 hours a day.
Xu Qiu entered the simulation laboratory II. Sure enough, the seven materials have been synthesized and preliminary performance test results have been obtained. The equipment used is based on the equipment of the original teacher Wei group, not the equipment of the Gong Yuanjiang research group just copied.
Among them, the system based on H22 donor, IT-4F or IT-DM acceptor has the highest efficiency and the previous standard ITIC system's efficiency is increased by 0.86. Relatively speaking, it is introduced in each ICIN unit Two fluorine atoms are better than introducing two methyl groups.
At the same time, it also confirms Xu Qiu's previous guess that the two strategies that can pull the efficiency from 6% to 9% and 10%, combined can indeed further improve the performance, but the amplitude will be much lower.
In addition, the efficiency of Wu Shengnan's system has achieved overtake, reaching almost 12%.
This is the advantage of the variety of materials, the east is not bright and the west is bright.
For some general strategies, the applicability of different systems is different. For example, the 3D-PDI systems of Xu Qiu and Han Jiaying are similar. With the same introduction of selenium atoms and fused ring strategy, the efficiency of the school girl’s system is better than his. high.
No wonder Xu Qiu feels that this scene is a bit familiar...
Of course, from the point of view of publishing articles, this is quite good. If a certain strategy developed by Xu Qiu directly makes the device efficiency very high, and other people follow the trend and the result is lower, it will be difficult for latecomers Published a great article.
Next, Xu Qiu continued to explore "the influence of the difference in the glove box of Wei Xingsi and Gong Yuanjiang's research group on device performance".
He first carefully observed the row glove box of Gong Yuanjiang's research group and found that their row design is quite reasonable. The spin-coated glove box A is on one side, the vapor-deposited glove box B is in the middle, and the test glove Box C is on the other side, and the middle is connected by a transfer cabin.
In the actual operation, first spin-coating in A. After the spin-coating is completed, the substrate can be directly placed in the AB interface transfer cabin. People come out of A, enter B, and start evaporation. After the evaporation is completed, The device is placed in the BC interface transmission cabin, and the person comes out of B, enters C, and starts testing, which is very consistent.
The main equipment inside, the glue spreader is the one that was given to Mr. Wei before. The evaporation device and the test device are not from the same manufacturer, but there is not much difference in general. There is also a paper version of the operation guide for reference. .
Xu Qiu looked at the operation guide and figured out how to operate several equipment, and then personally operated it in the simulation laboratory. Using Gong Yuanjiang's grouped glove box, he prepared a batch of system standard samples.
He directly took the ready-made zinc oxide substrate, spin-coated the effective layer according to the optimal conditions obtained before, and then transferred the coated substrate into the vapor deposition glove box, turned on the vapor deposition, and turned it on 16 times faster. Draw a vacuum for half an hour, and now it can be done in two minutes.
In less than half an hour, Xu Qiu got the test results and the efficiency of the standard sample system was up to 0.31% higher than the previous value.
The difference is said to be high or not, and it is not low.
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There is a need to replace the glove box and other equipment, but the priority is not high.
After finding out the details, Xu Qiu left the simulation laboratory to continue to organize the harvest of the conference and make a PPT.
On Monday morning, after six o'clock, it was already light.
Wei Xingsi, Xu Qiu and Mo Wenlin met at the entrance of the hotel, and then set off together to go to the bun shop yesterday for breakfast.
Mo Wenlin did not make up today, and she was wearing cool casual clothes. She still exuded the familiar perfume smell. She pulled two suitcases, one black and one pink, one large and one small.
"I'll help you carry one." Out of humanitarian concern, Xu Qiu said actively.
"Okay~" Mo Wenlin was not polite, and said with a smile: "Then give you this little one."
"The small one is pink..." Xu Qiu hesitated.
"You are still carrying a computer bag. The small ones are lighter and the larger ones are heavier. Let me do it myself." Mo Wenlin said.
"How do you feel that you did it on purpose?" Xu Qiu asked in confusion.
"No." Mo Wenlin denied altogether.
"Okay." Xu Qiu had no choice but to compromise.
Eat early, because the three people have a lot of luggage, and the traffic jam in Jincheng is not as serious as Modu, so Wei Xingsi chose to take a taxi to Jincheng South Station.
Today’s high-speed rail train is G5, and the trains will be distributed at 7.33. You can arrive at the Magic City Station at 11.29. The time is less than four hours.
Such trains are single-digit high-speed trains. They are basically the trains between the Imperial Capital and the Magic City. They only stop at about two stops in the middle, so the speed is very fast. However, the normal high-speed train takes five hours or even six hours.
The three people checked in and entered the station. Because Mo Wenlin bought the tickets later, Xu Qiu and Wei Xingsi were in the same carriage in the other carriages.
When buying tickets for the high-speed rail, there is the function of choosing a position. At that time, Feifei Wu thoughtfully helped both of them choose D. Then, after Xu Qiu got on the train, he found that he and Wei Xingsi were facing each other, which was really embarrassing.
Xu Qiu looked around. There were a lot of vacancies and not many people. Sitting next to him was a six-minute girl, holding a cup of Starbucks coffee in her hand, squinting her eyes and listening to the song with headphones, while Wei Xingsi was next to him. Is a vacancy.
The train moved slowly, and Wei Xingsi pointed to the location next to him, and said, "Sit here, have you finished the summary of the conference yesterday, tell me?"
"Okay." Xu Qiu got up and took the backpack from the luggage rack, took out the computer, and placed it on the small table in front of the train DE seat, and then briefly reported the summary to Teacher Wei. He mainly turned it over. After flipping through the PPT, I didn't elaborate.
After reading it roughly, Wei Xingsi nodded and said, "Yes, do you need a PPT from each of their reporters. If you want it, I can ask Gong Yuanjiang for a copy."
"Um..." Xu Qiu thought for a while, and said, "If you can, I still want a copy."
"Okay, I'll talk to Gong Yuanjiang later." Wei Xingsi paused, and suddenly asked: "That's right, Gong Yuanjiang mentioned the large-size device before adding a mask to test it. Do you have any ideas?"
Xu Qiu thought for a while, and said,
It’s relatively easy to make a mask. Just dig a square hole in the center of the stainless steel plate. The main reason is that the precision is high. For ITO substrates, you first need to design a new ITO. Pattern, and then find a reliable domestic company to order the ITO substrate."
Wei Xingsi said with a "hmm" and said: "This matter is up to you. If you need funds, mention it to me. If you change to a domestic company, you may have more initial investment, but in the long run, the cost of materials should be much lower.
Of course, we must not be greedy for cheap, we must let them guarantee the quality, first try to buy a little less, if there is a problem with the ITO electrode, such as insufficient density, resulting in too high square resistance and low conductivity, it will significantly affect the performance of the device. "
Xu Qiu nodded and said, "I will take care of it."