I Have a Research Support System

Monday, 9:20 a.m., lab.

It is said that there will be a group meeting today. Xu Qiu has never attended it before, so he is a little curious:

Sister, what will the group look like?

It literally means that the members of the research team gathered together for a meeting, Chen Wanqing replied while operating the computer:

Everyone will report on the recent progress of the experiment, or the next scientific research plan. Anyway, the last thing I want to do every week is to participate in the group meeting.

Why?

You'll find out later.

Not long after, Teacher Wei came.

He was at the door of 216, glanced inside, and said:

Come here, let's have a group meeting.

Both Chen Wanqing and Wu Feifei picked up the USB flash drive, experiment notebook and pen, Xu Qiu also picked up the notebook from the table, and followed them to 218.

After entering the door, Mr. Wei sat at his desk and pointed in the direction of the large computer.

Wu Feifei understood, found the remote control of the projector from the table, and turned on the projector.

A white curtain slowly fell on the wall opposite the large computer.

Because they were all installed on the ceiling, Xu Qiu didn't notice them when he came to the office a few times before.

Everyone found a place to sit down, and sat in a row near the big computer.

Wei Xingsi looked at his students, but couldn't find Tian Qing, so he asked:

Where is Tian Qing, haven't you come back yet, Wu Feifei, have you informed her when work will start?

I told her the time before the holiday, and then I asked her yesterday, and she said that she is still in the Neon Country and will come over next week. Wu Feifei said.

She doesn't ask me for a vacation, whatever, leave her alone. After finishing speaking, Teacher Wei took out a bulging envelope from the drawer, got up and handed it to Wu Feifei.

Let's congratulate Wu Feifei for publishing a review on EES.

Wu Feifei took the envelope with a smile, and put it in her experiment notebook.

Teacher Wei took the lead in applauding, and the others followed suit.

Others should work hard and post articles. Teacher Wei said:

Okay, let's start the group meeting, whoever will speak first.

Seeing that no one took the initiative to stand up, Teacher Wei called by name: Wu Feifei, you come first.

Wu Feifei got up, inserted the USB flash drive into the large computer, opened the PPT, switched to the projection mode, and began to introduce:

This is what I'm doing recently. Add ammonium chloride additive to the MAPbI3 system. I'm still testing the conditions, and the efficiency is not as high as the standard sample.

It's okay, is there anything else? Teacher Wei said.

No more. Wu Feifei said.

How about you, Duan Yun, how is the equipment setup, when will it be ready? Teacher Wei said.

How can it be so fast, Tongji Zhou Dagang and his team took a year to build it up, I will try my best to get it done this semester.

Now I am making a sample table, and I need to make several stainless steel parts. I asked my brother, he can do it, and the price is more than 2,000 yuan. Do you think so?

Then ask your brother to do it, two thousand is not expensive. Teacher Wei added, after finishing speaking:

You'd better make two preparations. I think you can do your work on copper-doped quaternary copper-based sulfides at the same time. Do the synthesis in Zhangjiang, and then go to the same base for testing.

In case the equipment on your side has not been set up well, there is still an insurance policy over there, maybe an article can be published, right?

Yeah, okay. Duan Yun nodded.

Chen Wanqing, Xu Qiu, do you have anything to report?

Chen Wanqing inserted the USB flash drive and opened her PPT.

Xu Qiu took a closer look at the content of the senior sister, it was exactly what he had been doing for the past few days.

No wonder the senior sister asked him for data last night. It turned out to be for the group meeting.

Chen Wanqing reported while operating the page-turning laser pointer:

I will mainly talk about the work that Xu Qiu has done in the past few days. He has made four perovskite transport layer materials for use in organic photovoltaic devices, the best of which is FAPbCl3.

This is its light absorption spectrum diagram. It can be seen that its light absorption range is basically within 400 nanometers, so it hardly absorbs visible light.

Well, continue. Teacher Wei nodded.

This is the energy level structure diagram measured by CV, and its forbidden band width is about 3.0 electron volts.

Well, go ahead.

This is the J-V characteristic curve. The table below is the photoelectric performance parameters. The best is FAPbCl3, followed by PEDOT standard sample, and the third is MAPbCl3.

The efficiency of 10.46%, is it possible to continue to improve? Wei Xingsi asked.

Chen Wanqing looked at Xu Qiu.

I don't think it's very likely. After all, it's just a transmission layer material. Xu Qiu said.

Okay, this value is enough. I will make a few more batches later to see how the repeatability is. Is there any more? Teacher Wei said.

Finally there are EQE and CELIV curves.

Well, nothing else?

there is none left.

Xu Qiu, do you have anything to report?

Xu Qiu shook his head.

You can try to talk about it in the future, and you can share the literature you read with us. The main purpose is to cultivate the ability of speech. After all, there will always be time to give a report in the future. Teacher Wei said.

Okay. Xu Qiu replied.

By the way, you have finished writing your cover letter, Teacher Wei said:

Bring it here and we'll submit the article, Chen Wanqing, you stay too, the others can go back.

Wu Feifei remembers to order takeaway, eat it with you at noon, I won't eat with you.

...

It took the three of them more than half an hour to submit Xu Qiu's article.

By the way, do you have any ideas about what materials you plan to synthesize? Teacher Wei said.

Let's make donor materials first, I don't have any specific ideas yet, Chen Wanqing said:

I will discuss it with Xu Qiu this week, and the team will make a report next week.

Okay, if you design any molecules, you can go to the big computer here and use the DFT simulation software to simulate and calculate first. Teacher Wei said.

…………

The two returned to 216.

Senior sister, it seems that the group meeting is not as scary as you said before. Xu Qiu said.

That's because this is the first week, and it will be opened every week after that, Chen Wanqing said:

If there is no data, or if you can't produce results for a long time, you will understand what it means to be in dire straits.

Okay, what if there is no inspiration for the experiment, or no research direction. Xu Qiu said.

If you really can't think of what to study, you can go to Teacher Wei, and he will arrange specific experimental directions for you.

Including any problems encountered in the usual experiments that cannot be solved by yourself, you can talk to him, and he will give you advice from his perspective.

However, scientific research is mainly on your own, and the tutor can only give you resources and platforms.

Of course, the situation of different types of research groups is not the same.

Due to the small number of students in the small research group, if the supervisor is in charge, he can learn a lot, but relatively speaking, there are fewer scientific research resources;

There are a lot of scientific research resources for large research groups, but the big bosses are usually very busy, and basically they can’t even recognize the students, let alone give personal guidance.