I Have a Research Support System

On Friday morning, Xu Qiu J2: IDIC-4F system, the first draft of the article Natural Energy was born, with a total of seven highlights:

First of all, the most eye-catching thing is naturally the device efficiency, which has reached a maximum of 13.33%, and the third-party NIM test result is 13.2%, which marks that the organic photovoltaic field has leaped from the perennial 12% era to the super 12% era.

Second, a large-area device was prepared, that is, the efficiency data under the 1 square centimeter shield reached 10.24%. The original ITO pattern designed by Xu Qiu was 2 square centimeters. The data in centimeters is only 8.73%, not more than 10%. The data is not very good, so Xu Qiu chose the data of 1 square centimeter to break 10%.

Third, thick-film devices have been prepared. The efficiency of 300nm-thick devices can reach 10.42%, and the efficiency of 500nm-thick devices can still reach 6.35%. If it is zero, it shows the phenomenon of open circuit.

Fourth, a set of theoretical explanations is proposed: Compared with the ITIC structure, the side chain of the IDIC-4F system has changed (molecular structure design) → the intermolecular hindrance has decreased (DFT results) → the arrangement of receptor molecules in the effective layer has changed Closer (GIWAXS results) → increased electron mobility (CELIV, TOF, SCLC results) → reduced energy loss and increased open circuit voltage (J-V curve results).

Fifth, another set of theoretical explanations is proposed: relative to the IDIC structure, IDIC-4F introduces fluorine atoms (molecular structure design) → intramolecular interaction enhancement (according to the theory proposed by other early researchers) → acceptor material The HOMO/LUMO energy level becomes deeper, and the light absorption red shifts (CV, UV-vis results) → the short-circuit current increases, and the open-circuit voltage increases (J-V curve results).

Sixth, similar to the previous H43:IT-4F system of Xuemei, the HOMO energy level difference between the donor and acceptor of the J2:IDIC-4F system is also relatively small, only 0.16 electron volts (CV results), and it also shows excellent charge transport. The performance (PL, TRPL, TAS results), the theoretical explanation is that the IDIC-4F material has a low exciton binding energy.

Seventh, for the phenomenon that the efficiency of large-area and thick-film devices exceeds 10%, a possible theoretical explanation is also given, that is, the exciton diffusion distance of IDIC-4F material is very high, and the R-SoXS results show that the scale of the aggregated phase reaches More than 30 nanometers, which is larger than the traditional fullerene system, provides further evidence.

After some inventory, most of the more than a dozen kinds of characterization tests are connected in series. Only the electron microscope data such as TEM and AFM are useless, because the image that is indeed taken is a piece of white flowers, and nothing can be seen.

Therefore, for these two characterizations, Xu Qiu mentioned a common phrase in the article, which roughly means the results show that the appearance of the effective layer is good, and then threw the data into the supporting information.

In the afternoon, Xu Qiu went to 218 with the draft of the article that had been read and revised by every author in the research group.

Wei Xingsi smiled all over his face, took the USB flash drive that Xu Qiu handed over, and said, Here it is, has everyone else read the article?

Well, I've changed it all over again. Xu Qiu nodded.

Okay, let me take a look. Wei Xingsi just stared at the computer screen, his brain was running fast, and made a few comments from time to time.

Well, the title is okay, and it highlights the three highlights of high efficiency, large area, and thick film.

Although there may be many highlights in an article, it is impossible to write all of them in the title, which would be too bloated. Therefore, Xu Qiu put the three core highlights in the title.

The author... is fine.

The authors of this article, there is a long row, a total of ten, divided into three work units:

Among them, the first is Xu Qiu, the second is Han Jiaying, the third is Tian Qing, the fourth is Wu Shengnan, the fifth is Mo Wenlin, the sixth is Chen Wanqing, the seventh is Gong Yuanjiang, the eighth is Feng Shengdong, the ninth is Tnu, and the tenth is Wei Xingsi.

Considering that both Tian Qing and Han Jiaying have made great contributions to this work, the former is responsible for the testing of four mechanisms, and also optimized the pictures of the article, while the latter is responsible for most of the basic characterization tests, as well as the preparation and testing of devices, in order to To be fair, Xu Qiu asked the two of them to guess the game, and decide the ownership of the second article by winning two out of three rounds.

In the end, Xuemei is happy to mention her second work with her second consecutive victory.

However, the two professors Gong Yuanjiang and Tnu did not make much contribution to this work. They belonged to the type of posting names, so naturally they did not post newsletters, just like the few articles in Nature published by Wei Xingsi when he was researching at NREL in the beautiful country. Sub-journals are almost in a similar situation.

After reading the title and author, comes the abstract section.

Wei Xingsi read the abstract in one breath, without getting stuck throughout the whole process, which gave him a feeling of carelessness, and there was almost nothing to be found that could be revised.

He couldn't help thinking, if I didn't change anything, wouldn't I, the corresponding author, have nothing to do, and that wouldn't work.

So, Xu Qiu saw that Mr. Wei changed the indicate in the abstract to reveal...

After changing a few more synonyms, Wei Xingsi nodded in satisfaction before continuing to read the main text of the article.

Normally, when Xu Qiu and Wei Xingsi read documents, they can read ten lines at a glance, and only browse the key information. They may be able to read an article in three or five minutes, but now they modify their own articles, an article in Article format, and read 5000+ completely. Vocabulary, every half an hour, an hour can't get down at all.

Fortunately, Xu Qiu's ability to write articles is not as good as when he first joined the research group. He has basically reached Wei Xingsi's level, so he will basically not make mistakes in relatively elementary grammar and tense problems, and the difficulty of modifying articles Lowered a lot.

Two hours later, Wei Xingsi read the entire article twice, including subtitles, captions for each picture, supporting information, and even references, author's contribution descriptions, and other parts.

Teacher Wei let go of the mouse and keyboard, moved his cervical spine, then relaxed on the backrest behind him, and said, Very good, let's throw it away, and hope to be included in an article on Natural Energy.

Afterwards, the two moved to the big computer in the office, and started the tedious submission process: copy and paste the title, abstract, cover letter, keywords, fill in the detailed information of each author, fill in the detailed information of the suggested reviewers, and fill in the banned ones. Details of reviewers, uploaded documents such as text, raw data, supporting information…

Standing by the side, Xu Qiu saw that Mr. Wei's hands were shaking a little while operating, as if he had Parkinson's.

However, the symptoms are not very obvious, probably early Parkinson's?

The submission process was a bit troublesome, but there were no problems.

Half an hour later, Wei Xingsi pressed the Submit button, and when he saw the animation of Manuscript Flying Away that marked the successful submission, he took a long breath and said, Let's go out for dinner tonight. If an undergraduate is also called, I won’t go there.”

Okay. Xu Qiu nodded in response.

In fact, even if Mr. Wei doesn't say anything, Xu Qiu plans to organize a dinner party tonight. He has been busy writing articles these days. Although he hasn't done any experiments, he is actually quite tired. Now that he is finally done, he naturally wants to reward him. Take a look at yourself.

When Xu Qiu returned to 216, it was about 4:30 in the afternoon.

He posted the news of the dinner party at six o'clock in the evening in the group chat of the research group, and then looked at the situation of everyone.

At the desk, Chen Wanqing was writing an article, Duan Yun was browsing the recruitment information, Mo Wenlin was carefully reading the literature, Tian Qing was playing with her mobile phone, and seemed to be chatting with someone;

In the inner laboratory, Han Jiaying took Xu Xinjie to test the device in the laboratory, and Wu Feifei took Yu Ya to learn the preparation of perovskite solution;

In addition, Wu Shengnan took Yin Houlang to do synthesis experiments in Zhangjiang, and now he is going to return to the Handan campus;

Deng Hu has something to do today and didn't come to the laboratory, but he said that he will arrive on time for the evening dinner.

Overall, the quality of this batch of new undergraduates is relatively good, and they are highly motivated.

At 5:30 in the evening, everyone in the laboratory gathered and set off in a mighty way to the restaurant Tianla that Xu Qiu had booked in advance. I have been to this restaurant once before. It serves regular Sichuan cuisine and the price is relatively affordable.

The main reason is that there are a lot of people this time. If you eat hot pot and the like, it is estimated that 13 people will cost 2,000 for a meal.

Thirteen people sat around a big table, ordered good dishes, and controlled the total price of the dishes within 1,000 yuan, and then ordered a 2-liter bottle of fruit orange and 2-liter Qixi.

The two new undergraduates, Yin Houlang and Deng Hu, were relatively good at coming, so they stood up and poured each a drink.

Tian Qing raised his glass first, and said, Let's have a drink together. Congratulations to Xu Qiuxi for submitting an article on Natural Energy.

Xu Qiu quickly waved his hands: The article has just been submitted, why...

Duan Yun interrupted: In my opinion, Xu Qiu's article will definitely win. If it doesn't win, it will also be a loss for Nature Energy.

Chen Wanqing booed and said: Student, I can be regarded as half of your master. If you round it up, this article is equivalent to my publication, huh huh huh...

Wu Feifei half-joked: Xu Qiu, are you interested in changing careers and come over to make perovskite? There are more opportunities here.

Han Jiaying said in a serious tone: Brother, I believe this Nature·Energy is just your starting point, not the end point, and you will definitely win the main issue of CNS next time~

Mo Wenlin echoed: I think what Jiaying said is very reasonable, let's vote for Nature for the next article.

Wu Shengnan carefully analyzed: Xu Qiu, I think your article is written very well in terms of language, logic is smooth, and there are many highlights. If I were a reviewer, I would definitely let you pass it.

Sun Wo was simple and rude: Must hit!

Yin Houlang was gentle and polite: I wish my brother's article a smooth publication.

Deng Hu spoke with a Northeastern accent: Brother Xu Qiu, the article is absolutely right.

Xu Xinjie smiled lightly: Congratulations, brother~

Yu Ya seemed a little shy, and said along the way: Congratulations, brother.

Hearing the serious or indecent blessings from other friends, Xu Qiu was quite moved, so he waved his hand and called the waiter to add three more dishes.