I Have a Research Support System

Monday, September 27th.

Before I knew it, it was the fourth week after school started, and the National Day holiday was coming soon in a few days.

Speaking of which, there is also the Mid-Autumn Festival in September, which is also a statutory holiday. However, for most research groups, except for National Day, Labor Day, winter vacation and summer vacation, other statutory holidays do not exist, or only A symbolic half day off.

Because statutory holidays are stipulated by the Labor Law, and there is no labor-employment relationship between graduate students and tutors, if you want to complain, maybe you can complain to the Department of Education?

From this point of view, colleges and universities are now even more exaggerated than companies. After all, if companies work overtime or overtime on holidays, they will generally still pay overtime fees. However, it is impossible for college students to subsidize scientific research.

The main thing is to add more people and expand enrollment, and the volume will be over.

However, the future may be different.

Didn't the second child just start to be released recently, but it doesn't seem to be of much use, and the downward trend of the newborn population will not change.

According to the current trend, perhaps in another decade or so, the annual increase in population of flower growers may reach negative growth, and then they will enter a super aging society.

At that time, it is not clear whether the country will continue to roll.

Maybe we will follow the old path of the neon country. The old people postpone their retirement until they are 65 or 70 years old. The young people don't roll up, but they don't struggle anymore.

Everyone gathered in Room 218.

Wei Xingsi looked around, and first asked: How did the new undergraduates in the group perform last week?

Wu Feifei responded: Yu Ya and Deng Hu are not bad. They came for four and a half days last week. I was teaching them cleaning substrates, using the glove box and preparing solutions.

Wei Xingsi gave a hmm and looked at Xu Qiu again.

Xu Qiu: I handed Yin Houlang to Wu Shengnan to do organic synthesis, and Xu Xinjie handed it to Han Jiaying to make devices. The feedback from them is also good, but because they are all sophomore students, they come here slightly less frequently.

Okay, Wei Xingsi nodded: Let's investigate for a while, and if they all perform well, let them participate in the group meeting. It's not a problem that 218 is small, and we can hold the group meeting in the conference room on the third floor. In addition, Yu Ya and Deng Hu, both of them are juniors, Wu Feifei, can you let them have a direct Ph.D. and a master's degree?

After a pause, Wei Xingsi continued: By the way, Xu Qiu, how is the situation at Jiangwan's decoration?

Xu Qiu: The basic renovation has been completed. Old Wang of the fume hood asked me to go over to check and accept it last week, but I have been writing articles last week and I have no time to go over. I will go over to take a look in the afternoon.

Wei Xingsi: Well, by the way, let's take a look at the progress of other research groups. If we don't plan to move to Jiangwan, we don't have to rush to move. We can consider delaying until winter vacation or even next summer vacation, because the glove box needs to be returned to the factory, and we have to It is more troublesome to stop the experiment and re-debugging.”

Xu Qiu: Okay.

Wei Xingsi: Let's start the group meeting.

Wu Feifei: Last week, I tested the two-dimensional perovskite system based on thienyl ethylamine (TEA) organic spacer layer, and tried five systems with different n values, 1, 2, 3, 4, 5, where n is 4, the device efficiency is the highest, reaching 8.88%...

After finishing speaking, she switched to a PPT and changed the topic: However, the hysteresis phenomenon is serious at present. This is the result of the forward scan, and the efficiency is 8.88%, while the result of the reverse scan is only 4.67%. It may be necessary to optimize the processing. craft...

Wei Xingsi asked: What is the highest efficiency of the phenylethylamine (PEA) system in the world now, 14%?

Wu Feifei nodded: That's right, the highest 14.12% is the result of the beautiful country Mark research group.

Wei Xingsi thought for a moment, and said: Don't worry about the hysteresis phenomenon, try your best to make the efficiency above 10%. This system also let Feng Shengdong of Sweden test TAS and cooperate with them. This is our relatively large one. Advantage.

Seeing this result, Xu Qiu couldn't help feeling secretly:

Wu Feifei's shot is steady. Sun Wo has been working on it for more than a month, and it is difficult to break 1%. In the end, he switched to the standard system to break through the performance to 7%.

As soon as Wu Feifei made a move, it took only a week to try a new system for the first time, and the efficiency was close to 9%.

Although the research systems of the two are different, it can also explain the problem. The gap between people is indeed very large.

Duan Yun continued to sort out the work of cobalt nanowire-doped PVDF matrix thermoelectric materials, and the progress was about 30%.

Now his weekly working hours are relatively short, so the writing of articles is relatively slow.

Wei Xingsi didn't care. When he usually went to the research group to inspect, he saw Duan Yun browsing the recruitment website, so he didn't bother.

The teachers of some research groups are squeezing the students who are about to graduate, trying to squeeze out the last bit of oil and water;

Some tutors think that the students are about to graduate, so they should not bother each other. After all, they have also completed their graduation goals. It is good for everyone to get together and break up, and we can still be friends in the future.

Wei Xingsi belongs to the latter, and PUSH is a bit more PUSH, but as long as he achieves the graduation goal that he set twice as much as the school requires, then everything is easy to talk about.

Sun Wo: Last week, I continued to try the standard system based on phenylethylamine and n-butylamine organic spacers. After two steps of ammonium chloride additive and DMSO solvent annealing, the device performance was further improved to 8.17% and 8.29%. Last week’s results were 7.22% and 6.99% respectively.”

Wei Xingsi thought for a moment and made some suggestions:

First of all, we need to continue to make devices, and try to achieve an efficiency of more than 10%. Now that other people's standard samples have reached 14% and 15%, we have to achieve 10% to sell. In addition, this system can also be shot Take pictures of TEM and AFM, and use electron microscope to see whether there are any unique phenomena after several processing methods. Since there is no bright spot in efficiency, and the system is also a system published by others, we will Try to find bright spots from other aspects, so as to sell your article.

Sun Wo: Okay, okay.

Xu Qiu felt that Teacher Wei looked like a mentor at this time.

However, having said that, looking at the entire research group, it seems that Teacher Wei and Sun Wo can give more pointers.

Wu Feifei is second only to Xu Qiu in scientific research in the group. Duan Yun and Chen Wanqing are graduating soon, and Xu Qiu is helping to watch over several people in the field of organic photovoltaics.

Although Tian Qing is paddling, her strength is not bad. She has published a Chem. Soc. Rev. journal with an impact factor of 40+ within one year after entering her master's degree, plus three articles in the first and second areas of SCI.

Only Sun Wo was the special member left.

Tian Qing: Last week, I tested the exciton binding energy and exciton diffusion distance of Chen Wanqing's IEICO material. The data is similar to that of the ITIC system. The exciton binding energy is also about 100 millielectronvolts, and the exciton diffusion distance is about 15 nanometers. precise data……

Tian Qing: This result shows that the upgrade of the non-fullerene acceptor molecule from the ADA structure to the AπDπA structure will not have a great impact on the two excitonic data, which may be due to the two π The unit can be considered as the extended part of the central D unit, that is, the πDπ structure can be regarded as a large D unit...

These results were discussed together by Xu Qiu and Tian Qing, and Xu Qiu was of course the main contributor.

After all, Tian Qing is not from organic synthesis. She doesn't know much about molecular structure, and she is not very good at analyzing molecular structure when she gets the results. She is a bit like a fake material chemistry student.

And at Xu Qiu's current level, it doesn't matter whether he talks about it or what he talks about in the group meeting. It's better to share these conclusions with other friends, and it can make Teacher Wei feel that they have a lot of work and a lot of thinking.

The organic photovoltaic five-member group began to report.

Chen Wanqing's JACS article of the IEICO-4Cl system has reached 80% of the progress.

Now, in addition to writing articles every week, senior sisters also have to write graduation thesis and listen to lectures.

Recently, I have to take Han Jiaying to the Blue River company for a whole day every week.

Xu Qiu didn't go to join in the fun, it was too time-consuming, with seniors and juniors involved, he could basically handle most of the things, and if it didn't work, he could even call him remotely.

Of course, they are paid every time they go there, the same as when Xu Qiu went there for the first time, the senior sister and the junior sister can each get 1,000 yuan for consulting fees each time.

This 1,000 yuan seems a lot, but it is actually the normal price.

If the senior sister enters the job, the monthly salary is 18K, and the company may have to pay more than 25K. After conversion, it is about 1,000 yuan per working day. Now I just pay 1,000 yuan a day every time, which is about the same. It is equivalent to an internship without an internship certificate. up.

In addition, Han Jiaying is still an undergraduate student, and Blue River has considered whether she is worth the price of 1000.

Later, he found out that the junior girl performed no worse than the senior sister when guiding the experiment, so he readily paid the money.

Even for a wealthy second generation like Lan He who owns a mine, the money is not blown by the wind, and it is impossible to give it casually, but if it is really worth the price, then he will naturally not save it.

For example, before Lanhe, Wei Xingsi, and Xu Qiu partnered to open a photoelectric material company, she could obviously invest less money, such as 200W and 300W, and own the same 75% of the shares. There is nothing wrong with this.

But in the end, Blue River gave Xu Qiu and Wei Xingsi a premium and invested 500W.

The seniors and juniors went to the Blue River. In addition to imparting spin coating experience and exploring the scraping process, they also guided the construction of the optoelectronic material company and taught Yang Qin and another newly recruited master student the synthesis.

This master student was recruited by Yang Qin, and he was pushed from the alumni group of Shanghai Jiaotong University.

In fact, those fresh graduates from Shanghai Jiaotong University who have not found a job in October probably have some problems.

Because most of the students who are waiting to graduate from the third research institute participate in the autumn recruiting half a year in advance, and then a small number of people who have no job in the autumn recruiting, or do not have a good job, or hold a few offers in their hands and want to ride a donkey to find a horse. go to Spring Recruitment;

After the spring recruitment, 80% of the graduates have basically confirmed their jobs, signed tripartite contracts or selected transfers;

Finally, after graduating in July, there were not a few people who joined the job that month, and they also joined the job in August or September at the latest.

What's left...

Either I was cheated by signing with the third party, or I quit or was laid off after working for a few days, or I or my family reasons, such as family affairs, or I wanted to enter the system before, but I changed my mind temporarily, or I wanted to gap for a year, Turns out the economy isn't up to par...these are all possible.

But no matter what, he is also a master's degree from Shanghai Jiaotong University. Even if there is a problem, he will be tried for three months first. If it is a cow or a horse, come out for a walk. If the performance is not good, just replace him.

PS: Ask for a recommendation ticket on Monday, ask for a monthly ticket, if the limit is exempted, it will be updated directly.

Thanks to Kara Xiao Kebo for the reward of 5000 points, A.DK.CHK and Bingcheng Mao Bayi for the reward of 1500 starting point coins.