I Have a Research Support System

The morning of October 1st, the eve of the holiday.

This year's National Day holiday is still as usual. The group meeting was held this morning, the laboratory was cleaned up in the afternoon, and then the holiday was off. On the afternoon of October 7th, I went to work.

Material 1 218, brief group meeting.

Feifei Wu continued her research this week on a two-dimensional perovskite system based on thienylethylamine (TEA) organic spacers, and mainly prepared the optimal system, that is, a device with an n value of 4, with a maximum efficiency of 9.70%.

At the same time, she used a constant temperature and humidity chamber to test the environmental stability of the two-dimensional device, and the performance was much better than that of the three-dimensional perovskite system, but the obvious hysteresis phenomenon encountered before has not been resolved, which will be her next step The focus of the research.

Duan Yun continues to sort out the work of "cobalt nanowire doped PVDF matrix thermoelectric materials", and the progress is about 60%.

Sun Wo’s two-dimensional perovskite standard system based on phenylethylamine and n-butylamine organic spacer layers only made a batch of devices this week, and the device efficiency did not make a breakthrough, and it was still stuck at just over 8%.

However, he listened to Mr. Wei’s advice and took a set of TEM photos, and found that the photos of perovskite crystals obtained by different processing methods were different, and the differences were quite obvious.

If you want to write an article, focus on the morphology of the analysis, and build the correlation between the processing method-morphology-device performance. You can't publish a big article, but there is still a chance for a small article in SCI Zone 2.

Tian Qing did not do experiments this week. She sorted out the data of exciton binding energy and exciton diffusion distance of materials including ITIC, IEICO, H22, IDIC, IDIC-4F, etc., and planned to compile an article.

The workload of this job is not small, and there are some new ideas, but because her work is biased towards physics, it is not easy to submit to journals such as AM and JACS that are biased towards materials and chemistry.

In the end, after discussing with Wei Xingsi, she decided to try to develop in the direction of ACSEL, and there will still be some mechanism-oriented articles there.

Moreover, ACSEL's current real-time impact factor has exceeded 10. When the results of the division of the Chinese Academy of Sciences come out at the end of the year, there is a high probability that ACSEL will be the TOP rating in the first district. If it wins, it will definitely not lose money.

Chen Wanqing's IEICO-4Cl article has been written, and it was just submitted yesterday, and the target journal is JACS.

In addition, the senior sister was assigned a new job by Xu Qiu, and she also shared with everyone at the group meeting: "I prepared three kinds of full-solution processing, translucent, scraping, flexible, The colorful devices are...among them, the PCE10:IEICO-4Cl system is the best, with an efficiency of 6.17%..."

Immediately afterwards, Xu Qiu reported the progress of his other work: "Last week, I took Mo Wenlin to prepare a batch of translucent devices with different electrode thicknesses. The strategy adopted is a double-layer electrode structure, that is, a layer About 1 nanometer of gold, and 9 to 19 nanometers of silver, the beauty of this is that..."

"In the final result, with a thin-layer electrode with a total thickness of 16 nanometers, the device efficiency can reach more than 10%, and the average visible light transmittance AVT can reach 30%."

"For this work, my idea is to put five pictures in the text, which are..."

Wei Xingsi was a little bit moved by Xu Qiu's work efficiency. He just raised an idea on Monday, and got the experimental results on Friday. Even the structure of the article has been planned and completed. How can it be written quickly.

The diarrhea is not so fast.

Of course, the two works of Xu Qiu can progress so quickly, on the one hand, because of his high execution ability, on the other hand, it is mainly due to the direction of translucent devices, and the characterization test is relatively simple.

Obviously, the difficulty of writing and publishing articles in different fields requires different working hours. The subdivision of translucent devices is more time-saving.

Therefore, when scientific researchers compare, most of the cases are in the same field.

Otherwise, if you do perovskite or graphene, which is easy to publish articles, and you go to do high-energy physics research, there is definitely no way to compare.

In terms of high-energy physics, especially research involving large-scale instruments, such as particle colliders, it may take hundreds or thousands of people to work together for several months or even years to carry out a research.

For example, in 2010, there was an article published on PRB with 22 pages of text, 12 pages of which were lists of authors and units. There were more than 3,000 authors and 184 work units...

Together they made the first measurements of proton-proton collisions recorded with the ATLAS detector at the Large Hadron Collider.

This is also the one with the most authors among the SCI papers published so far.

This kind of experiment is tested continuously. Xu Qiu guessed that they should be tested in a similar arrangement, such as three shifts, four shifts, and each group is responsible for testing for a few hours. A total of more than 3,000 people participated. In the test, there is no way to distinguish who has contributed more, so everyone's name is listed directly.

The more human society develops, the more difficult it is to explore the boundaries of cognition, and the more it is necessary to integrate the power of all civilizations.

In the field of scientific research, it is difficult for one person to suppress the entire field in the era of Einstein and Newton.

Even in a single subdivision direction, there are many research groups in full bloom, and teamwork and international cooperation are becoming more and more important.

Han Jiaying, the work of J3 has been completed, and the target journal AEM plans to submit it this afternoon. With continuous practice, the speed of writing articles has gradually increased, and an article has been published in two weeks.

Wu Shengnan, the article of the m-ITIC system has been submitted, and the target journal is JACS.

This is the first article to modify the side chain of the ITIC system. Only by modifying the position of the side chain, the performance of the device is improved from 10% to 12%.

In fact, during this period of time, the novelty of the work of the post-doctoral sister may not be able to be included in JACS. After all, the previous work of IDIC is also side chain regulation, but there are no other journals to submit to. There are too many submissions in AM and AEM. Journals such as CM and JMCA, which are weak in the first area, feel that the vote is low.

In the case of EES, there are relatively few votes in the group. This is because compared with AM and JACS, EES of the same level prefers to receive review articles. For the review work, the difficulty of voting for EES will be slightly higher than that of AM.

In addition, the school girl still has an ITIC-Th job in her hand, and she plans to take the leave and come back to organize it. The main method used is sidechain optimization. You can only post one article with a weak grade such as CM, Adv. Sci. or JMCA.

Mo Wenlin is mainly helping Xu Qiu prepare translucent devices this week, and at the same time writing her own article on the H22:ITIC:IEICO system, the progress is almost 70%.

She is not familiar enough with the field of organic photovoltaics, so the speed of writing articles is naturally far behind that of Xu Qiu.

If it was Xu Qiu, the article on the ternary system would probably be written in less than a week, because it does not involve new materials, and the difficulty of writing is relatively low.

After the group meeting, Wu Feifei went to order takeaway food, Han Jiaying took a USB flash drive to ask Teacher Wei to revise and deliver the article, and everyone else returned to 216 with stools.

Xu Qiu found that although the field of organic photovoltaics in the group has been performing well in recent months, with an average of one or two AM-level articles per month, after the batch of articles in the group is submitted, the potential of the ITIC system is basically underestimated. Almost squeezed.

That is to say, when the time comes, no matter whether it is Wei Xingsi's research group or other research groups studying non-fullerene systems, they must change their perspectives. Either the efficiency will break through a new high, or the structure will be very novel, or there will be other highlights. It will become more and more difficult to publish AM-level top journal articles.

No way, Xu Qiu led the team to publish a large number of articles, and now the threshold in the field of organic photovoltaics has been raised very high.

When Xu Qiu and his schoolmate were studying 3D-PDI before, the 8% efficiency of the non-fullerene system can be called a major breakthrough, and it is appropriate to publish the first section of SCI.

But now the organic photovoltaic team in the group randomly pulls out a work efficiency of 10% or higher, or even 11%, 12%, and 13%.

Even the recent work published by followers of the trend in journals in the second district, the device efficiency is generally above 8%.

The current situation is almost three thresholds of 8%, 10%, and 11%, corresponding to the ordinary second district, the ordinary first district, and the top publication in the first district.

Of course, there is a premise here, that is, to achieve such an efficient system, the molecular structure must be new. If the novelty of the structure is average, and there are no other bright spots as support, even if the efficiency reaches the standard, it will be downshifted when it reaches 12%.

For example, Xuemei’s J3 donor material is very similar to J2, except that there is an extra sulfur atom on the side chain of the BDT unit. Therefore, although the device efficiency has reached 12%, it has dropped by half and voted for AEM.

Another example is the m-ITIC of the post-doctorate sister, which is a variant of ITIC, and the IDIC article has already used the method of side chain modification. Therefore, although the JACS has been submitted, the probability of the draft/rejection is estimated to be 50-50. Even four or six.

Even so, Xu Qiu didn't panic because he had done a lot of homework in advance.

Now he has stood at the peak of the organic photovoltaic field for a short time. The higher he stands, the farther he can see. Every day, many various scientific research ideas emerge in his mind.

Xu Qiu will initially screen these ideas, and occasionally discuss them with Wei Xingsi;

Then provide the more feasible schemes to the simulation experiment system, so that the simulation experimenters can work 24 hours a day. Anyway, there is no "Labor Law" to protect them. Naturally, they will be severely exploited, not even exploited. In terms of composition, the simulation experimenter is at best a production tool;

In the end, these data will stay in the simulation system and can be called directly when needed.

Material research is essentially constant trial and error.

Xu Qiu worked with the system in a division of labor. He provided ideas for trial and error, and the system accelerated and simulated the process of trial and error.

In the end, he found a suitable path, and then Xu Qiu handed over the suitable path to the girls under him to repeat it in reality, organize it into an article and publish it.