I Have a Research Support System

When naming materials in the field of organic photovoltaics, if there is a form of the original name of the material + a number, it is usually the original author of a certain material, which is used for the convenience of naming.

For example, Xuemei’s H series and J series donor materials are rarely named by others.

Of course, it's nothing if it really appeared, it's just a name.

Even the same material can have different names.

For example, PCE10, different research groups have different names for it. In addition to the common PTB7-TH, there are also a series of names such as PTB7-Th, PTB7-th, PBDTTT, and PBDTTT-E-T.

Therefore, the name is not important, but the molecular structure to which the material name refers.

So, Xu Qiu turned to the first picture, looked at the molecular structure, and his first impression was: Why is this molecule so similar to the ITIC-Th we developed?

Because there are seven conjugated fused rings on the D unit of the ITIC main chain, there are two sets of four conjugated rings on the A units on both sides, and there are four side chains, which is very complicated.

So even if Xu Qiu is the developer of ITIC, he has to take a few more glances to confirm that its molecular structure is based on ITIC and what changes have taken place.

After carefully observing the molecular structure, Xu Qiu found that this ITIC2 is really ITIC-Th, the molecular structure is exactly the same, but the name is different.

Looking at the device efficiency again, it barely reached 10%. No wonder only JMCA was issued, and the efficiency did not meet the standard.

Then, Xu Qiu turned to the homepage and glanced at the author and unit.

Good guy, it turned out to be an old acquaintance, the Yan Hu Research Group of HKU, Xu Qiu robbed their PCE11 before, and took an AM.

Now I don't know whether the other party came here to hit the structure on purpose, or unintentionally, and I can't say for sure with this article.

After all, colliding with articles is also a very common thing in the scientific research circle.

In particular, there are fixed routines in many fields. There are only a few methods of improving the molecular structure, and it is very possible that multiple people think of the same improvement method and cause the molecular structure to be repeated.

Therefore, when there is no obvious hotspot subdivision field in an industry, a tacit understanding will usually be formed between large research groups, each researching a subdivision field, and not easily changing, so as to avoid collisions among large research groups to the greatest extent. lead to duplication of effort.

Anyway, as long as it is not intentionally targeted, it is acceptable to hit the article, each according to its own ability.

But if it is deliberately targeted, it will be more disgusting.

For example, we saw that you were going to make a big article, and we guessed the corresponding molecular structure.

Considering that it usually takes a long time to prepare a large article, half a year or a year is normal, then we can quickly publish an article that is exactly the same as your molecular structure.

Then the performance may not be very good, and the characterization may not be complete. It doesn’t matter. Just pour water and post it on the SCI District 3 and District 4, and publish it quickly before your big article is submitted.

Once this happens, you really have nothing to do with others, because there is no way to prove that others have plagiarized your idea, and it does not necessarily mean plagiarism.

The final result, although it may not necessarily affect the publication of your big article, because in this case, the two works cannot be completely consistent, and your system performance is better, there is still a chance for the article to be published normally, but if the reviewer It is really a pain point to use this point to attack the novelty of your article, and it is difficult to avoid.

Therefore, in the scientific research circle, they generally don't set up too many enemies for themselves.

In case you really pissed off someone and turned into a mad dog and kept chasing you, the feeling is really indescribable.

It is worth mentioning that if it is a paper on physics, mathematics, computer science and biology, it can be posted on the arXiv website in advance, so that this situation can be avoided, while papers related to materials science and chemistry generally do not In doing so, at least in the fields of organic photovoltaics and perovskites, Xu Qiu has not seen such a precedent.

arXiv is a non-profit database operated and maintained by Cornell University.

Because it is free, academic researchers can publish their latest research results on the platform before other top conferences or journals are not accepted. On the one hand, it is to expand publicity and enhance their influence; on the other hand, it is to protect their own scientific research. Results, because it takes a long time to wait for conferences and journals from being submitted to finally being searchable, and it is difficult to guarantee that one's own results will not be plagiarized by others during the period. arXiv can prove the originality of the paper.

This is similar to occupying a pit. My article has not been officially included, but there has been key progress or the article has been submitted, so I first declare on arXiv that this idea was first proposed by me, so that even Others came up with the same idea, and as long as it's posted later than me, I can't shake my status as the starter.

In fields such as mathematics and physics that involve modeling and proof, that is, the direct copying of other people's achievements, arXiv is still very meaningful, because the cost of plagiarism is almost 0, just copy it directly.

However, for experimental and applied subjects such as materials science and chemistry, if you want to plagiarize, you also need to go through all the experimental procedures completely. Plagiarism will be very difficult. Otherwise, if someone asks you to show the original data, you will definitely not be able to show it. , wouldn't it just reveal the stuffing directly.

On the other hand, if materials science and chemistry can also occupy pits, there will definitely be people who will do nothing and post all the molecular structures that can be thought of in the field first, indicating that these structures are mine, then directly Messed up...

Xu Qiu handed the JMCA document in his hand to Han Jiaying, and said succinctly: The work of Yan Hu of HKU has collided with our ITIC-Th.

Oh? Han Jiaying widened her eyes in surprise, then took a look at the document, and said, Really, then let's just give up this structure. Anyway, we only synthesized the material before, and there are no other signs. Do.

Speaking of this, the school girl even laughed: I still have the reputation of being a forerunner, and I didn't make the representation of this system in advance, otherwise it would be useless.

Xu Qiu felt a little helpless, and patted the school girl's head: You really make excuses for paddling yourself.

Han Jiaying chuckled: Then what system shall I do next, do you have any specific instructions from Senior Brother?

Xu Qiu decided to test the junior girls: Do you have any ideas?

Hmm... Han Jiaying tilted her head and thought for a while, then said, I have some ideas. The first is to make further improvements based on J2, J3, and H22 donor materials.

After a pause, she continued: Before I communicated with the optoelectronic company in Shencheng, the BDT unit used in donor materials such as J2 has fluorine atoms and thiophene units with alkyl side chains. This thiophene unit requires five Only one step reaction can be synthesized, and the synthesis is very difficult, so I thought about replacing the fluorine atoms with chlorine atoms, so that the synthesis steps can be directly reduced from five steps to one, and...

Xu Qiu continued: In the field of organic photovoltaics, although in most cases the photoelectric performance of the material will not be as good as that of fluorine atoms after the introduction of chlorine atoms, it will not drop too much, such as the photoelectric properties of IEICO-4F and IEICO-4Cl. The performance is basically the same, and at the same time, the possibility of photoelectric performance surpassing that of the fluorine atom system after the introduction of chlorine atoms is not ruled out. If the performance of the material does not decrease but increases after the replacement of chlorine atoms, it is equivalent to winning the lottery.”

That's right, Han Jiaying responded with a smile: I plan to reduce the cost of materials and the reduction of synthesis steps as a major highlight, as long as the performance of the materials is not greatly reduced, and if the performance of the materials can be improved, That would be perfect.

It's a good idea. You can try it. Xu Qiu nodded in satisfaction. The research direction proposed by the junior girl is not a big problem, and the thinking is also very clear, and the feasibility is very high.

At the same time, this idea of ​​the school girl was also in the Hundred Articles plan that Xu Qiu had thought of before, so he directly advanced its priority in the simulation laboratory, so that he could get the results of the exploration earlier.

In case the idea turns out to be a dead end, you can turn back in time.

After all, just because it's suitable in theory doesn't mean it's suitable in practice.

Just like drawing cards and drawing blind boxes, before drawing, you don’t know whether there will be a golden legend or a pile of garbage. Even if 99% of them get SSR and 1% get N, people with black faces will still get N. Reverse SSR to understand one time.

In the same way, if an idea is not effectively implemented in scientific research, it is difficult to know what the final result will be, otherwise there will be no saying that practice is the only criterion for testing truth.

I have another idea. Han Jiaying raised her little hand.

Oh? Let's hear it. Xu Qiu became interested.

Han Jiaying continued: We can directly use the device performance data of several non-fullerene system standard samples prepared by the scrape coating method at Blue River, that is, using glass ITO substrates, metal electrode evaporation, and only scrape coating effective layer, compared to devices prepared by normal spin-coating methods.

Xu Qiu rested his chin on one hand, thought for a moment, nodded, and responded: This idea is indeed possible. I will take the time to talk to Yang Qin and ask him to help arrange the experiment.

For a company like Blue River, they usually pursue invention patents that can be monetized, and publishing articles is of little significance to them.

Because posting an article means publishing your invention/discovery for free, and you have to spend time and energy writing the article, and even pay a page fee for the article, which is not only not profitable, but also a loss.

However, these data are useless to Blue River, but they are useful to Xu Qiu and the others. They can be used directly to sort out an article, which can be regarded as waste utilization.

Not only that, the concept of scrape coating is rarely mentioned by researchers in the current field of non-fullerene organic photovoltaics, which is a bright spot.

If the work is published earlier, the performance of the device is better, and it is another AM-grade article.

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