I Have a Research Support System

Gong Yuanjiang got up and continued to host, and said, Do you have any questions?

Soon someone raised his hand to respond. It seemed that he should be one of Gong Yuanjiang's students. After getting permission, he asked: Mr. Wei, do you think there are any advantages and disadvantages of the PCE11 material you developed compared with the traditional PCE10 material? ?”

Wei Xingsi thought for a while and began to reply: The two materials PCE10 and PCE11 are the current benchmark donor materials...

He chose to avoid the important and focus on the minor, and did not mention the specific advantages and disadvantages, mainly because it is difficult to compare the two objectively.

Xu Qiu is also rehearsing the answer below. Apart from possibly saving Mr. Wei, he will definitely be on stage to give a report later, and there will be a questioning session at that time. The current thinking is just a rehearsal.

No, Xu Qiu has learned a trick. When encountering difficult questions, he should avoid the serious ones and practice Tai Chi...

After dealing with the first questioner, Gong Yuanjiang personally asked a question: Mr. Wei, what do you think of the future development trend of the organic photovoltaic field?

This is a question that all attendees will be asked, and it is actually the core part of the seminar.

After all, the specific tasks mentioned in your PPT are all published articles, and almost everyone has seen them. If you don’t understand, you can directly refer to the literature.

However, every scientific research worker's thoughts on the general direction of the future are usually difficult to hear.

There is a saying that choice is greater than hard work, and the same is true in the field of scientific research. If the research direction is right, follow the big guys, and you will have a greater chance of eating meat (publishing good articles).

Therefore, the more powerful scholars are, the more attention will be paid to their opinions. This is one of the reasons why bigwigs can easily pour water on the main journal of CNS and the major sub-journals of Nature-others really want to read what they write.

Wei Xingsi talked eloquently, the main idea was that he was optimistic about the field of non-fullerenes, but what he said was relatively general and did not mention things that were too detailed.

Then, Xu Qiu learned another trick, which he named as Mirror Flower and Water Moon, which basically means I'll stop here, how much you can comprehend depends on your ability.

Participants continued to ask questions, this time it was a young teacher whom Xu Qiu was not familiar with, who asked:

I saw that you have made a 3D-PDI system, and the efficiency is very high. Do you think the way out for the non-fullerene system lies in the PDI field, or the ADA system recently developed by Xu Zhenghong?

This question is rather sharp. If you say that someone else’s work is not good, Xu Zhenghong, the boss, is sitting in the meeting place. It’s not good to say bad things about people face to face; but if you say that your direction is not good, you are hitting yourself Face.

Fortunately, Wei Xingsi has a lot of experience in this area. He secretly remembered the questioner in his heart, and then replied: Whether it is the PDI field or the ADA field, I think there are very promising directions. I am optimistic about the entire non-rich industry. Leene field...

Xu Qiu once again learned a trick, and he has both ways.

Why do you feel that there is something weird about the moves you have learned?

Next, a student-like questioner said seriously: The light absorption range of traditional PDI series is about 400-600 nanometers, but the light absorption range of the 3D-PDI material developed in your EES work is 600-800 nanometers. In between, what do you think of this phenomenon...

When Wei Xingsi switched the PPT to the corresponding place, the other party patted his forehead and said, Oh, I read it wrong, it's all right, I'm sorry.

Yes, it's a horse.

The last question was asked by the students brought by Lu Changjun: Your PCE11 system uses the thermal coating method. How do you do it?

Wei Xingsi talked for more than forty minutes, and he was a little tired, and the specific experimental operation was not his specialty, so he waved his hand to Xu Qiu and said, This question will be answered by my student Xu Qiu. He is Lead author of this series of work.

The summoning was a bit sudden, but Xu Qiu didn't have stage fright, and stood up directly, and then looked around, all eyes were focused on him in an instant. There were teachers and students, and he still couldn't help feeling a little nervous.

So, he said in his heart, This is the group meeting, this is the group meeting, took two deep breaths, calmed down, and said in a deep voice: I... As soon as Xu Qiu opened his mouth, Xu Qiu found that he really regarded it as a group meeting. In the group meeting, I spoke Chinese directly.

After reacting, Xu Qiu quickly switched the language to English: Sorry, we firstly.... Translation: We first used the method of heating the substrate and the effective layer solution at the same time, and then quickly spin-coated to prepare the effective layer film. This method will form a circle in the center due to uneven heating. Later, we adopted a method that can Heated glue homogenizer...

After Xu Qiudai answered this question, Wei Xingsi's report came to a successful conclusion.

In fact, Xu Qiu really wanted to see the reaction of Yan Hu from the University of Hong Kong after listening to this report.

Yan Hu is also the research team who worked on the PCE11 system and Xu Qiu's crash. Unfortunately, the other party did not come today. I don't know if it is because Hong Kong City is too far away from Jincheng, or Gong Yuanjiang didn't invite him, or he didn't want to see him. Wei Xingsi.

After that, Xu Zhenghong, Lu Changjun and Zheng Xiao reported in turn.

Xu Zhenghong talked about the development history of their non-fullerene receptors in the ADA system based on the Rao tannin A unit. Their group has published a lot of articles, including many major sub-journals of Nature. When they first proposed the concept of ADA, they Published an article Nature Optics, and now IDTBR system is another Nature Materials, in addition to miscellaneous JACS, AM, EES, Angew and other articles.

Because they also worked on the ADA system, and what Xu Qiu did was very similar, this report brought him a lot of inspiration, and he directly turned on the wild grass (three beeps) mode in the experiment notebook.

Mo Wenlin who was watching was stunned: Xu Qiu, what did you write in my experiment notebook?

Xu Qiu's handwriting was mediocre at first, and after the college entrance examination, when he entered the university, except for doing homework, coping with exams, and occasionally filling out forms, he basically couldn't write, and he used the keyboard to type, which led to the continuous writing. When you write it, other people can't understand it at all.

After appreciating his own handwriting, Xu Qiu casually complained, It seems that I have great potential to be a doctor...

Lu Changjun talked about the progress of polymer donor materials based on DPP acceptor units developed by his group. Similar to PCE10 and PCE11, the DPP system is also a narrow band gap material. Among them, the structure of DPP2T can also increase the photoelectric conversion efficiency by 10%. , but the effect of combining this kind of material with non-fullerene acceptor system is not good, so Xu Qiu didn't pay much attention to it.

The last one, Zheng Xiao, is doing PDI. He mainly introduced the PDI oligomers, including the PDI tetramer, which set a previous world record. It deviates greatly from the system Xu Qiu is currently studying, and he didn’t pay too much attention to it.

The enthusiasm of the participants to ask questions today is relatively high, and the 15-minute question time is basically full.

Moreover, most of the questions asked are relatively normal, not too exaggerated, or deliberately difficult.

After all, except for Bazan, everyone else is domestic counterparts invited by Gong Yuanjiang. The circle is so small, and you can't see them when you look up. It's still relatively good-faced in China.

Just like Bao Yuanyou's work in the morning, when others saw that there were some omissions, that person just shook his head and said: I can't fully agree with your conclusion.

PS: Wanchang is over, the current monthly pass is 850+, 2W7 is owed, and 1W3+ has been repaid.