I Have a Research Support System

Xu Qiu remembered the instructions given to the simulation experimenters before, that is, to synthesize seven kinds of ADA-type non-fullerene acceptor materials including IT-4F, IT-DM, FNIC-4F, etc., and to prepare devices, explore photoelectric performance.

It has been three or four days now, and it should have been completed. After all, they are simulation experimenters who can work on multiple threads at the same time, and they are still running 24 hours a day.

Xu Qiu entered the simulation laboratory II, and sure enough, all seven materials have been synthesized, and preliminary performance test results have been obtained. The equipment used is based on the original equipment in Teacher Wei's group, not the newly copied equipment from Gong Yuanjiang's research group.

Among them, the system based on H22 donor, IT-4F or IT-DM acceptor has the highest efficiency of 10.98% and 10.47% respectively, and the former value of the efficiency of the standard ITIC system is 10.12%, and the improvement rate is 0.86% and 0.35% respectively. %.

Relatively speaking, the effect of introducing two fluorine atoms on each ICIN unit is better than introducing two methyl groups.

At the same time, it also confirmed Xu Qiu's previous guess that the two strategies that can increase the efficiency from 6% to 9% and 10% can indeed further improve the performance when combined, but the magnitude will be much lower.

In addition, the efficiency of Wu Shengnan's PCE10:FN-4F system has achieved an overtake, reaching 11.61%, which is close to 12%.

This is the advantage of many types of materials, the east side is not bright and the west side is bright.

For some common strategies, the applicability of different systems is different. The 3D-PDI systems of Xu Qiu and Han Jiaying are similar. With the same introduction of selenium atoms and condensed ring strategy, the efficiency of Xuemei’s system is higher than his. high.

No wonder Xu Qiu felt that the scene in front of him seemed familiar...

Of course, from the point of view of posting articles, this is quite good. If a certain strategy developed by Xu Qiu directly makes the device efficiency very high, while others follow suit and the result is lower, it will be difficult for latecomers. Great post.

Next, Xu Qiu continued to explore the impact of different glove boxes on device performance in the research groups of Wei Xingsi and Gong Yuanjiang.

He first carefully observed the glove boxes of Gong Yuanjiang's research group, and found that their design is quite reasonable. The spin-coated glove box A is on one side, the evaporated glove box B is in the middle, and the glove box for testing Box C is on the other side, connected by a transport pod in the middle.

In actual operation, spin coating is first performed in A. After the spin coating is completed, the substrate can be directly placed in the transfer cabin of the AB interface. People come out of A and enter B to start evaporation. After the evaporation is completed, put the The device is placed in the transport compartment of the BC interface, and the person comes out of B, enters C, and starts testing, which is very coherent.

The main equipment inside, the glue homogenizer is the one given to Mr. Wei before, the evaporation device and the test device are not from the same manufacturer, but they are generally not too different, and there is also a paper version of the operation guide for reference .

Xu Qiu looked at the operation manual, and after figuring out the operation methods of several equipment, he personally operated in the simulated laboratory, using the glove box of Gong Yuanjiang's group, to prepare a batch of standard samples of the H22:ITIC system.

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 evaporation glove box, turned on the evaporation, and turned on the 16-fold acceleration. Vacuum for half an hour, now it's done in two minutes.

In less than half an hour, Xu Qiu got the test results. The efficiency of the H22:ITIC standard sample system was up to 10.43%, an increase of 0.31% compared to the previous value.

This difference is neither high nor low.

There is a need to replace glove boxes and other equipment, but the priority is not high.

After finding out the details, Xu Qiu left the simulation laboratory and continued to sort out the harvest of this conference. The production team will meet with the PPT.

On Monday morning, after six o'clock, it was already dawn.

Wei Xingsi, Xu Qiu and Mo Wenlin met at the entrance of the hotel, and then they set off for breakfast at the steamed stuffed bun shop yesterday.

Mo Wenlin didn't wear makeup today, she was wearing cool casual clothes, and she still exuded the familiar smell of perfume. She was pulling two suitcases, one black and one pink, one big and one small.

Let me carry one for you. Out of humanitarian concern, Xu Qiu offered to say.

Okay~ Mo Wenlin was not polite, and said with a smile: Then give you this small one.

The smaller one is pink... Xu Qiu hesitated.

You're still carrying a computer bag. The small ones are lighter for clothes, and the bigger ones are heavier. Let me do it myself. Mo Wenlin said.

Why does it feel like you did it on purpose? Xu Qiu asked doubtfully.

No. Mo Wenlin flatly denied.

Okay. Xu Qiu reluctantly compromised.

After eating breakfast, because the three of them had a lot of luggage, and the traffic jam in Jincheng was not as serious as that in Shanghai, Wei Xingsi chose to take a taxi to Jincheng South Station.

Today's high-speed train is G5, departing at 7:33 and arriving at Modu Station at 11:29, which takes less than four hours.

The trains like this are single-digit high-speed trains, which are basically direct trains between the Imperial Capital and the Shanghai Metropolis. They only stop at about two stops in between, so the speed is very fast, while the high-speed trains with normal trains need to travel five or even six hours.

The three checked their tickets and entered the station. Because Mo Wenlin bought the ticket later, she was in another compartment, while Xu Qiu and Wei Xingsi were in the same compartment.

When buying high-speed rail tickets, there is a function of seat selection. At that time, Wu Feifei thoughtfully helped them both choose D. Then, after Xu Qiu got on the train, he found that he and Wei Xingsi had seats 12D and 13D respectively. The seats on the high-speed rail are not hard seats. , each row is independent, so the two cannot communicate directly.

Xu Qiu looked around, there were many vacant seats, and not many people. Sitting next to him was a six-point girl, holding a cup of Starbucks coffee in her hand, squinting, listening to music with earphones, and next to Wei Xingsi is a vacancy.

The train started slowly, and Wei Xingsi said to Xu Qiu from the air: Come here, have you finished the summary of yesterday's meeting? Tell me about it?

Okay. Xu Qiu got up and took off the backpack from the luggage rack, took out the computer, came to Wei Xingsi's row and sat down, opened the small table in front of the desk and chair, and briefly reported the summary to Teacher Wei , he mainly just flipped through the PPT, and didn't go into detail.

Wei Xingsi glanced at it roughly, nodded and said, Yes, do you need the PPT of each of their reporters? If so, I can ask Gong Yuanjiang for a copy.

Hmm... Xu Qiu thought for a while and said, If possible, I'd rather have a copy.

Okay, I'll talk to Gong Yuanjiang later. Wei Xingsi paused, and suddenly asked: By the way, the large-scale device that Gong Yuanjiang mentioned before, and then add a mask test, do you have any ideas?

Xu Qiu thought for a while and said: The mask plate is relatively easy to make. Just dig a small square hole in the center of the stainless steel plate. The main reason is that the precision is high. For the ITO substrate, you need to design a new ITO substrate first. pattern, and then find a reliable domestic company to order ITO substrates.

Wei Xingsi let out a huh and said, You will be responsible for this matter. If you need funds, please let me know. If you switch to a domestic company, the initial investment may be more, but in the long run, the cost of materials should be much lower.

Of course, we can’t be greedy for cheap, we must let them guarantee the quality, first try to buy some less, if there is a problem with the ITO electrode, such as not being dense enough, the square resistance is too high and the conductivity is too low, it will significantly affect the performance of the device.

Xu Qiu nodded and said, I will take care of it.