I Have a Research Support System

Xu Qiu simply classified the documents he got from Wei Xingsi, and handed it over to Feifei Wu in the field of perovskite and thermoelectricity, and kept it by himself in the field of organic photovoltaics.

Previously, the number of documents in the field of perovskite was almost two or three times that of the field of organic photovoltaics. Now, with the increase in the popularity of organic photovoltaics, the number of documents in the field of perovskite is almost equal to that in the field of organic photovoltaics.

In addition, documents such as organic field-effect transistors, perovskite quantum dots, and fullerene-based all-small-molecule organic photovoltaics are related to the research content of the group, but they are not relevant, and Wei Xingsi will also download them. .

But you don’t need to look carefully at this kind of literature. You just need to get a general understanding and put the literature in the designated file cabinet. The main purpose is to expand your horizons. Maybe you have a brainstorming idea.

For example, the structure of the previous Wu Feifei thiophene ethylamine organic spacer layer is based on the molecular structure of organic photovoltaics.

After the classification was completed, Xu Qiu randomly checked what his colleagues were doing recently.

Before reading the literature formally, Xu Qiu likes to sort the articles in descending order of journal influence, and then in order

The most influential one is definitely the CNS main journal and the big son journal of Nature.

Of course, these two levels of articles are difficult to publish in the field of organic photovoltaics. Therefore, Wei Xingsi will call Xu Qiu to check the literature by calling such articles.

If Wei Xingsi did not give special instructions when giving documents, it means that there are no articles of this level in this batch of documents.

The journals Xu Qiu usually reads mainly focus on articles in the first and second districts.

He will take a closer look at the top journal articles in the first district, and pay more attention to the weak articles in the first district, while in the second district, he will mainly look at the pictures and molecular structure, and then glance at the summary conclusions. There is nothing interesting. Just skip the place.

There are more than ten articles in organic photovoltaic literature this time, including two top-ranked articles in the district.

The first one was published on JACS, and the work is quite interesting.

Xu Zhenghong's research group developed a wide band gap polymer donor material PDCBT. The molecular structure is very similar to traditional P3HT. The main chain is all thiophene units, combined with ITIC, and the resulting binary system has an efficiency of more than 10%.

Their work, with a device efficiency of 10%, a new structure, a detailed synthesis route, and a P3HT concept, plus a large group of halos, was finally published on JACS, which was normal.

P3HT is a direct polymerization of several 3-hexylthiophenes at positions 2, 5 hand in hand. Because 3-hexylthiophene is a D unit, P3HT is an oligomer oligomerized by D units. According to the existing theory, the P3HT molecule Without the A unit, there is no D/A push-pull effect, resulting in poor photoelectric performance.

In the PDCBT molecule, Xu Zhenghong and the others modified the alkyl side chain of a thiophene to an ester side chain. The ester side chain has the ability to withdraw electrons, so the thiophene unit substituted by the ester group becomes the A unit.

Then two such A units and two D units composed of ordinary thiophene are polymerized to obtain a P3HT-like D-A copolymer connected with "...DDAADDAA...".

As for why it is "...DDAADDAA..." instead of the common "...DADADA..." structure, Xu Qiu was curious and wanted to know, but after reading the article, he didn't find the answer.

If Xu Qiu was a reviewer, he would definitely raise this question.

It's a pity that he isn't, and he doesn't bother to send an email specifically to ask about this little question.

In fact, Xu Qiu had already guessed the possible situation in his heart.

That is, Xu Zhenghong originally planned to develop a P3HT-like donor material to adapt to the IDTBR system developed by their group.

The result is synthesized and found that this material has general adaptability to IDTBR, and perhaps the device performance is only 6% and 7%.

At this time, they just saw Xu Qiu’s ITIC article published, so they got some ITIC through some channel, took it and tried it with the PDCBT material that was just warm, and found that the performance of the device was not bad, reaching more than 10%. Just sort out an article directly.

Otherwise, Xu Zhenghong's article should not be published so soon. Xu Qiu's article on ITIC materials has only been published for two months. Moreover, Xu Zhenghong and others put their own IDTBR system in use, and develop and adapt their own ITIC materials. It’s impossible to justify the donor material.

Of course, for the material field, motivation is not important, what is important is results.

If you can find a material with various physical properties that far exceed graphene, even if you say that you came up with it in a single shot, and named it Substance X, as long as it can be verified and repeated by others, publish a few articles in a row. The main issue of "Nature" is not very problematic, and it is not difficult to even directly nominate the Nobel Prize for the next year.

The scientific research circle is so simple and straightforward. If there are any disruptive results, you can do it.

Xu Qiu also imagined that the system would be able to see through his disguise, giving him the whole point of black technology or something, so that the Blue Star Civilization would directly jump to the second and third level civilization.

It’s a pity that I have a scientific research assistance system, and I can only rely on my own efforts step by step to continuously improve my abilities. In the early stage, even the points have to be deducted and saved, but now it is much better and can be fully fired. Go explore the thoughts in your mind.

Another top issue in District One was published on AM, and Gong Yuanjiang also got a new job.

They developed another new small molecule donor material, and then combined it with IT-4F receptor material, once again breaking the world record for all small molecule systems, reaching 11.2%.

The full text has only one highlight of high efficiency, which of course is enough.

There will be a chain reaction in the field of scientific research. Once a breakthrough is made in one place, it can be quickly expanded to other similar fields.

Because of the in-depth cooperation between Gong Yuanjiang and the Wei Xingsi group, he can eat more cakes if he gets the materials that other groups can't get in advance.

This world is also like this, the key progress is made by a single elite individual.

Most people are mediocre people, all paddling, or acting as a background board, or doing repetitive tasks that don't have much meaning.

Although they are talking about innovation, everyone understands the difficulty of innovation.

It would be nice to be able to make a slight change on the original basis. Most of them under the slogan of innovation, the more innovative the result, the worse the performance.

Of course, everything has two sides.

Although investing resources in the mediocrity will cause a certain degree of waste, it can guarantee the continuous output of the elite.

After all, the mediocrity and the elite are not static. Maybe someday a mediocre person will turn into an elite.

After reading the articles in the top issue of the first district, Xu Qiu began to browse the articles in the weak one, that is, articles of this grade.

The first few documents did not yield much, and none of them had much relevance to the field Xu Qiu was working on.

For example, some foreigners still insist on doing this system ten years ago.

Speaking of this, domestic researchers have a characteristic, that is, they like to chase hot spots, where they are popular, and where they are good to post articles, they like to swarm over and group together.

For small research groups, this phenomenon is particularly obvious. Just as the perovskite field just started to catch fire, the domestic perovskite groups have sprung up like bamboo shoots after a rain.

And some research groups abroad, they like to dig deep into a field, and have not changed their direction for more than ten years or decades.

If only from the perspective of scientific research itself, it is definitely easier to make breakthroughs if it is not easy to change directions in the long run.

But it is also easy to imagine that in the process of making a breakthrough, you may face the dilemma of failing to produce results for a long time.

For example, there have been no major achievements for five consecutive years and no decent SCI articles can be published. What should I do now?

If such a professor is placed in China, it will basically be cold. Students will not take the initiative to find you if you have no results. If you recruit yourself, you will not be able to recruit good students. If the country sees you have no results, the Natural Science Foundation will not give you. If you approve, there will be no funding for scientific research, and your peers may not taunt you, but they will definitely treat you as a marginal figure and ignore them.

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There is no funding, no students, and no academic achievements in SCI. If you signed a non-promotional position, the school department may directly let you go, if it is a formal establishment, it may reduce your resources elsewhere. For example, to reduce the area of ​​the laboratory, like this Jiangwan move, if you have no money and no articles, you can only get a guaranteed laboratory, a 40-70 square laboratory.

In foreign countries, such as Neon Country and Pretty Country, professors are all life-long, which is more secure for professors. Even if there are no results, the basic support is still in place, at least allowing you to continue your current research.

Of course, this lifelong system does have many drawbacks, such as cutting off the upward path of young people.

However, objectively, it also allows those who have obtained tenure to be able to research with peace of mind, without having to consider all kinds of troubles that they may not be able to produce results for a while. U U Reading www.uukanshu.com

Like the Neon Country next door, before 2001, there were only 9 Nobel Prize winners. In order to change the status quo, they launched the "Science and Technology Basic Plan" and stated that this plan would allow the Neon Country to get 30 in 50 years. Nobel Prizes.

In the next few years, the Neon Country won one Nobel Prize a year on average, and more than a dozen Nobel Prizes in more than ten years...

This situation is caused by many factors, but the tenure of teaching positions allows them to not easily change the research direction, not blindly chase hot spots, and grasp one aspect to explore. This is definitely a very critical factor.

Perhaps this is one of the main reasons why the country has begun to deepen the reform of the scientific research circle. The existing system does have great drawbacks.

Xu Qiu continued to look through the literature.

At this time, his eyes suddenly brightened and he saw a JMCA article, and someone actually developed a material called ITIC2.

PS: Happy Valentine's Day, everyone, I wish that singles will leave the singles as soon as possible, non-single...well, I should not have time to read novels.