I Have a Research Support System

Monday, short group meeting.

Wu Feifei's article Two-dimensional Perovskite Devices Based on ITIC Transport Layer has been written and submitted last Sunday, the target journal CM.

Next, she plans to carry out another work, that is, introducing ITIC non-fullerene-like stacked devices into two-dimensional perovskite. Two undergraduates were doing experiments while writing articles for the target journal JMCA.

Duan Yun's group will continue to paddle. He received a notice from Exxon Mobil last week saying that he failed the first round of interviews. At that time, he was depressed for a long time.

However, he soon received notices for the second round of interviews from two companies, one was Huawei, a major manufacturer, and the other was a small semiconductor packaging factory in Shanghai.

In addition, at his hometown of Taicheng Vocational and Technical College, Duan Yun went back to negotiate last weekend. The two sides reached a preliminary intention, but he is still considering it, because from the perspective of personal development, he thinks that the magic city is relatively better.

Therefore, although Duan Yun doesn't have a formal offer in his hand, he is not as anxious as before. At least judging from the current situation, it is not difficult to find a job with good salary.

Sun Wo continues to write his ACSAMI article, and the current progress is about 80%, and he is finishing the article.

Wei Xingsi asked him abruptly: After this article is submitted, have you thought about what you plan to do next?

Sun Wo shook his head weakly, and replied, No.

'It's difficult. ’ Wei Xingsi was silent for a while, then said, You should discuss it with Wu Feifei, and make a decision as soon as possible.

Tian Qing began to study the charge transport mechanism of non-fullerene system with linear change of three HOMO energy level differences. She got some preliminary CELIV and TOF data through testing, and also sent some samples to Feng Shengdong in Sweden.

Chen Wanqing further improved the processing technology of full solution, colorful, translucent devices at the Blue River. Currently, the highest device efficiency has reached 8.10% from 7.62%, which has reached the standard Xu Qiu wanted. Next, he plans to Perform repeatability experiments, and some other basic characterization.

This is actually not due to the senior sister alone, because Lan He specially designated a newly recruited master and a newly recruited undergraduate for her subordinates.

Chen Wanqing is now a Ph.D., and everyone in Blue River's team except Yang Qin is a master's degree. If she officially joins the job in the future, she will be the only second Ph.D., and her status will naturally be higher.

The current model in many factories is that masters and undergraduates are working, and doctors, as the team leader, watch other people work from the sidelines.

Of course, there is a prerequisite that this team can operate normally, be able to handle various emergencies, and meet various requirements put forward by the company.

In other words, the team leader must have rich experience, that is, the previous accumulation must be sufficient to be worthy of the title of team leader.

Otherwise, if it is Dr. Hunzi, who only has a degree and no skills, it will be easy to be discovered.

This is also similar to the current scientific research system in colleges and universities. Experienced tutors guide students to do scientific research, and tutors basically do not do scientific research by themselves, as long as there is scientific research output.

Xu Qiu reported the specific synthesis route and prospect based on stacked devices, PTQ series donors and Y series acceptors.

In the simulation laboratory, the Y series receptors have been iterated three times. According to the latest results today, the device performance of the newly developed Y3 receptors can reach more than 14%, and the highest value is 14.19%, which exceeds the current organic photovoltaic field. Efficiency world record, another big step forward.

Not only that, but there is plenty of room for optimization of the Y series receptors.

To sum up, the future of Y series materials can be expected.

Unfortunately, Xu Qiu is not yet able to share this good news with others.

The characterization data of Han Jiaying’s H5 and J4 donor materials has reached 80%, and she is starting to write articles. The junior girl gives priority to writing higher-quality J4 work, the target journal AM, and another H5 work. She only plans to publish an article on JMCA for the time being. small article.

Wu Shengnan was mainly writing articles last week, IHIC and 4TIC two kinds of materials, the target journals are JMCA and CM respectively.

Because it is a small article, her writing speed is very fast. IHIC's JMCA article only took a week, and the progress has reached 80%, and it is currently being finalized.

Mo Wenlin continued to work on the ternary system, and also talked about the results of the four-terminal method stacked device she helped Xu Qiu do last week.

Although this laboratory failed, it is still quite meaningful, and some conclusions drawn from it are very instructive for the next experimental work.

Xu Qiu also added some views on the preparation of stacked devices.

In the end, the four small groups of undergraduates reported, and their content was relatively short.

This one said she learned how to draw with ORGIN last week, and the other said he learned the EQE test with his senior sister last week...

They are all relatively trivial gains, after all, they are beginners.

Generally speaking, they are all quite lucky, just catching up with the time when the research group is developing the fastest. In the initial stage of scientific research, they can exceed 99% of undergraduates.

In the afternoon, after Xu Qiu taught Mo Wenlin the preparation technology of the transport layer of stacked devices, he went to Jiangwan Campus with Han Jiaying and Wu Shengnan to prepare for the synthesis of PTQ series donors and Y series acceptors.

After the three got off the school bus, they looked around.

Now shared bicycles have spread across the country, and there are many yellow and red shared bicycles in Jiangwan campus.

It may be because the subsidy bonus period has passed, and now it takes fifty cents and a half an hour to ride a bicycle, or one yuan per hour. The monthly card has also increased from the previous symbolic one yuan to the current six or twelve yuan a month. , but also began to collect deposits.

Fortunately, the privilege of riding yellow shared bicycles without a deposit for the students of Shanghai University of Technology is still reserved.

However, only a batch of early registrations are reserved, and now newly registered users, even students from Shanghai University, will have to charge 99 yuan as a deposit for yellow bicycles.

Xu Qiu suggested: Shall we walk there and exercise?

The two girls agreed one after another: Okay~, Yes.

The three of them decided to walk to the Xiancai building. They called it exercising, but they were actually saving money.

This is also the habit of domestic people. After a long time of prostitution, they feel that this thing is relatively cheap and should be free. Once the fee is activated in the future, a large number of people will run away.

Of course, most Internet companies know this truth, but they still choose to spend money to buy users.

The reason is also very simple. Although the proportion of user loss is not low, as long as we make the user group large enough to cover 1 billion people, even if there are only 100 million people left in the end, it is enough for a company to live a very nourishing life.

It's like if each of the 1.4 billion people in the country gives me 1 yuan, I will be a billionaire.

After arriving at Jiangwan Xiancai, the first stop of the three was the 401S of the student office.

Before, Wei Xingsi applied to the department to allocate the small office 401S in the student office on the fourth floor to his research group, and the department later approved the request.

The current appearance of room 401S in Jiangwan's office is completely different from what Xu Qiu saw before. It has been taken care of very cleanly, and it has also been simply decorated, giving it a more girlish atmosphere.

On the one hand, it may be because Han Jiaying and Wu Shengnan often stay in Jiangwan;

On the other hand, it may also be that the Handan campus is relatively crowded, and everyone has very limited space for personal belongings, and can only put a laptop, so they came to Jiangwan and started retaliatory arrangement .

In front of Han Jiaying's desk, there is a lot of equipment that she brought from the Internet and her bedroom, including pillows that can be used to sleep directly on the desk, backrests that can be placed in the chair, and various decorations, etc... …

The layout of Wu Shengnan's table is relatively simple, but there are also a lot of personal items, and there is actually a figure of Cardcaptor Sakura...Xu Qiu's first thought was that there are figures of all of them. The second idea is that they can also play with figures.

Now, post-doctoral seniors come to Jiangwan more frequently, even when they are not doing synthetic experiments, they like to run to Jiangwan, claiming that there is not enough space in Handan.

But Xu Qiu reckoned that she was hiding from Wei Xingsi. After all, she was under the nose of the boss and was easily caught and sent to deal with some messy things. Jiangwan was quiet enough.

The other few tables are relatively empty, and they should be used by the two undergraduates who come here occasionally. Speaking of which, Yin Houlang and Xu Xinjie were both there during the group meeting this morning, and they all disappeared in the afternoon.

Xu Qiu chose a table next to Han Jiaying and sat down, and began to discuss with the school girl and prepare for the experiment.

He plans to develop the PTQ series of donor materials together with the junior, and hand over the system to the junior after the junior is proficient.

As for the Y series receptor materials, Xu Qiu plans to take charge of them himself in the future, mainly because Y3 is new today, and the corresponding raw materials have not been purchased yet, and the synthesis plan of PTQ materials has been prepared long ago, so the raw materials have already been purchased. It can be directly used for synthesis.

After completing the preparatory work, Xu Qiu and Han Jiaying took the cheat sheet with the specific feeding amount and went to the laboratory on the fifth floor.

Today's target product is the A unit in PTQ1 material. There is only one main raw material, which is hexa-substituted benzene. The substituents are two fluorine atoms, two bromine atoms, and two amino groups. The positions of the substituents are respectively (4,5), (3,6) and (1,2) positions.

The name is roughly: 3,6-dibromo-4,5-difluorobenzene-1,2-diamine.

The molecular structure looks quite complicated, just like transplanting rice seedlings, all six hydrogen atoms on the benzene ring are replaced, and all six reaction sites are occupied.

Among them, the fluorine atom is used to improve the performance of the final material, the bromine atom is used for the subsequent Stille coupling reaction, and the amino group is used to form 1,4-azobenzene, and a fused ring is added on the basis of the original benzene ring. The six-membered heterocycle is used to introduce side chains, improve the solubility of materials, and regulate the molecular packing structure of materials.

Although this material looks complicated, there are commercial resources that can be bought directly, so Xu Qiu doesn't have to work hard to synthesize it by himself.

This is the inheritance of the scientific research circle. The synthesis of every new material is of great significance. The achievements made by some pioneers in the field of chemistry may not be useful at the time, but they will be used when they are not guaranteed.