Chapter 448: And professor

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Xu Qiu returned to 216 and began to prepare the PPT needed for the conference.
This time, the situation was different from the previous meeting they went to Kainan University to attend Gong Yuanjiang's side.
At that time, the number of articles in the research group was limited, with only a few articles.
So at that time, Wei Xingsi directly put all the work, even PDI and PCE11, which are less related, side by side, and pulled out and talked about it all.
Now, there are a lot of articles related to organic photovoltaics in the group, reaching about 30.
If you speak all of it in detail, you can't finish it in an hour.
Therefore, we need to make some choices. I will give a few representative works and focus on it. Other work can only be briefly mentioned.
Moreover, the current work is structured, and it is also necessary to construct a good story line and connect them together, so that it can be told to the peers.
When the research group develops to a certain degree in a certain field, it must start to establish its own system and create a series of work.
When someone mentions a certain material or a certain type of material, you can associate it with the corresponding research group: "XX is the material of the XX research group."
This is very important. On the one hand, it can increase the influence of one's own research group in the field; on the other hand, from a utilitarian point of view, it can also make it easier for one's own research group to survive and grow.
Because if you keep digging a series, you can form a small barrier to keep your research team in the series. There will be no sudden article breaks. With the expectation of article output, it will be easier to attract graduate students and post-doctoral students to come and go. .
For example, Xu Qiu has a lot of ideas in his mind, about Y series receptors, about laminates, and about translucent devices.
From his perspective, these ideas are easy to think of. If you try, it is very easy to produce scientific research results, but other research groups may need to spend several times his time to think about these. This is the existence of barriers.
The theme of Xu Qiu's speech at the conference was fairly well established.
The previous research on the PDI system has been temporarily abandoned, and the subsequent Y series receptor articles have not been published yet and need to be hidden. These are not appropriate.
Therefore, we must focus on the non-fullerene receptors of the ITIC series.
Since it is the ITIC series...
Suddenly, Xu Qiu had an idea and thought of the "Joule" review article published earlier. It seemed that he could use it directly, which fits the scene very well.
Therefore, he decided to refer to the story line summarized in "Joule" to plan the sequence of his report. He only needs to grasp the detailed situation of each part, that is, the approximate reporting time of each work.
Xu Qiu created a blank PPT file, planning to make the whiteboard PPT first, and then apply a ready-made template.
You can find Tian Qing for the template. She has collected a lot of PPT templates. It is said that she has paid for PPT templates online before.
In this regard, Xu Qiu said that we don't understand the world of a rich woman. If it were him, there is a high probability that he would "do it by himself, and have plenty of food and clothing."
The first page of the PPT is naturally the cover. Xu Qiu randomly made a title "The Development of ITIC Series Non-fullerene Solar Cells", and then wrote the reporter "Xu Qiu", the report time "December 14", and finally put it back The school name and school badge LOGO of Shangmadu Comprehensive University.
The second page is the table of contents, which is temporarily empty.
Xu Qiu started planning from the main text of the third page. He planned to take the "Joule" review first, put a screenshot of the article and TOC, and it would take about 30 seconds to introduce it.
Another review, that is, the non-fullerene review previously published on ACSEL, is unnecessary to mention, and it is not relevant to the ITIC series.
Next is the specific experimental work.
First of all, it is the AEM article of the senior sister, who developed the IDT-ICIN material.
This is also the origin of ITIC. Although the performance of the device was not high at that time, the A unit end group of ICIN was reported for the first time, and it was later used in more than a dozen materials.
Xu Qiu doesn't plan to spend too much time on this work. He will mainly introduce the structure of ICIN and the problems of IDT-ICIN materials. To pave the way for the introduction of ITIC, I tentatively set a one-minute introduction time.
Then, Xu Qiu’s AM article and Xuemei’s JACS article developed ITIC and combined it with the traditional narrow band gap PCE10 donor and the emerging wide band gap donor H22. The efficiency has been breakthrough all the way, from 8% to 10 %.
This part is a sign of the temporary emergence of the ITIC series. You can talk more about it. Xu Qiu reserved about 3 minutes.
Then, for ITIC, Xu Qiu led the organic photovoltaic team of the research group to improve through four paths, namely:
The modification of the end groups of A unit has developed several representative derivatives, mainly due to Xu Qiu's work, including IT-M, IT-4Cl and IT-4F, etc.;
The modification of D unit conjugate unit is mainly the work of Wu Shengnan, including FNIC, etc.;
The modification of the side chain of D unit is mainly Xu Qiu's work, including IDIC, ITIC-Th, m-ITIC, etc.;
The development of the AπDπA structure based on the IDTBR idea of ​​Xu Zhenghong's research group is mainly the work of Chen Wanqing, including et al.
Each part is tentatively scheduled for 2 minutes, which adds up to a total of 8 minutes.
Among them, use 1 and a half minutes to focus on one of the representative works, and the other half a minute to briefly introduce other works of the same type, just mention a name in one stroke.
Then, there are further studies on these four paths, that is, the intersection and expansion of the four paths.
The modification of the end groups of the A unit is widely used in other systems.
The fluorine-substituted ICIN-2F end group was initially more eye-catching, which was used in systems such as FN-4F and -4F.
Later, the chlorine-substituted ICIN-2Cl came to the top, which not only greatly reduced the synthesis steps, but also maintained the photoelectric performance without significant degradation.
The high light moment system of ICIN-2Cl is in the Y series receptors, which is definitely not reported here.
Therefore, Xu Qiu planned to bring the senior sister's -4Cl over to talk about it, tentatively set aside for 1 minute.
The modification of the D unit conjugate unit is further extended to later semi-transparent devices, as well as Y series materials.
Y series materials cannot be reported. Xu Qiu chose the FN-4F material developed by the postdoctoral sister for translucent devices. This part is tentatively scheduled for 1 minute.
With the modification of the D unit side chain, the IDIC system stands out and becomes the first ITIC derivative acceptor that can prepare large-scale, thick-film devices. It is tentatively scheduled for 1 minute.
After further optimization, the obtained IDIC-4F has an efficiency of 13.5%, setting the current world record for efficiency in the field of organic photovoltaics.
Xu Qiu was a little entangled, whether to talk about this work, after all, the article has not been officially accepted yet, it is a bit risky, but as the host’s report, there must be some work that can shake the place, otherwise all have been published. Work, that's too dull.
After thinking about it for a while, Xu Qiu decided to put this part in the PPT first, and what to do after I wrote it down, I went to Wei Xingsi, and you can also listen to his opinions.
This part of the work is very important, and the content is also very much, Xu Qiu directly arranged the longest time, tentatively set 5 minutes.
The AπDπA structure, a series of receptors, of which the -4F material is further extended to translucent devices, is the AM article that has just been accepted. It is tentatively scheduled for 1 minute.
In addition to the modification of the ITIC series of receptors, the development of donor materials is also synchronized. This part is mainly the work of Han Jiaying.
Including H series and J series wide band gap donor material synthesis, each part is tentatively scheduled for 1 minute, which adds up to a total of 2 minutes.
In addition, there is Mo Wenlin's ternary system. There are three ternary systems, namely 2D/1 non-fullerene acceptor)/1FA (fullerene acceptor) type and type, which add up to 2 minutes.
These are all related to ITIC, but not directly related to the receptor material, so Xu Qiu does not plan to spend too much time on it.
Finally, in the outlook part, Xu Qiu arranged a total of 5 minutes for this part, mainly referring to some of the ideas in the previous "Joule" review, with some additional minor modifications.
Except for some specific and feasible leftover work that Xu Qiu gave up because of insufficient manpower in the team, the other parts are Xu Qiu's vision for the field of organic photovoltaics. The overall goal is to clear the obstacles for commercialization.
Xu Qiu still maintained his previous ideas-now that he is capable and influential, he must show his perspective to his colleagues and lead them to the path Xu Qiu thinks is the right path.
The development of human society to the present, most of the period is a small group of pioneers, to lead the majority of ordinary people to move forward.
After planning the story line of the conference speech PPT, Xu Qiu added the estimated time for each part.
The total time is estimated to be 30 minutes and 30 seconds, and the control is just right.
At this time, Wu Feifei came in from outside, carrying three postal EMS courier envelopes, and said to Xu Qiu and Han Jiaying: "I just got the courier at the concierge, and the passports of all three of us have been mailed back. "
"Thank you." Xu Qiu took his envelope, opened and took out the passport, and found that the visa had been affixed to page 39 of the passport.
The visa is in English, which is a bit similar to the passport/ID.
The upper left corner is a white "VISA" on a blue background, and the upper right corner is the full spelling of the beautiful country USA.
On the left is a black and white photo of the U.S. visa, and on the right is a variety of information, including the place where the visa was issued, visa number, name, passport number, gender, date of birth, visa type, nationality... and the validity period of the visa. Expires on November 29, 202x.
Seeing that Xu Qiu and the others had obtained passports, Tian Qing approached him and asked, "How long is the validity period of your visa?"
Xu Qiu responded: "Ten years."
Han Jiaying answered: "Me too."
Wu Feifei smiled: "The same is true for me."
Tian Qing's face was weird: "Uh...you are all ten years?"
Xu Qiu and all three nodded in response, and Tian Qing exclaimed: "Awesome, it's been ten years. By the way, don't forget to update the EVUS information."
Xu Qiu originally wanted to say something: "The five-year period that has been promised is very long."
But after thinking about it, he still didn't make up the knife.
The previous page of the visa page in the passport, which is page 38, is also covered with a blue stamp and a sticker, which read:
"All travellers who hold a passport of the kind of flower family and hold a ten-year validity period or a B2 beautiful country visa must enter the electronic visa update system. The EVUS website is for information registration. For more information about this project, please visit the information registration please visit below It is an introduction in English. The full name of EVUS is ElectronicVisaUpdateSystem (Electronic Visa Update System), there is also a large EVUS icon and a QR code.
Xu Qiu wanted to complain about the sentence breaks and punctuation in the Chinese part, but I was afraid that the staff did not translate it directly. Most of them didn't check it carefully.
Because of Tian Qing's previous reminder, Xu Qiu didn't use a thousand degrees search to enter EVUS, but directly typed the website, logged in to the website, and started registering information.
The process of applying for a U.S. visa is similar to that of applying for a U.S. visa. You have to fill in a lot of information, including passport information, visa information, personal information, contacts in beautiful countries, security issues, and so on.
But this time is not as cumbersome as last time, only seven pages of information need to be filled in.
After filling in, click Submit and wait for review.
In the process of filling in, Xu Qiu also learned that EVUS was implemented from November 29, 2016, and it is mandatory for visitors who hold a ten-year U.S. visa to register.
It is said that a bilateral reciprocal arrangement between flower growers and beautiful countries will help speed up the entry of domestic tourists into beautiful countries.
Every time you update the information on the EVUS website, you can keep it valid for two years. During the valid time, you don’t need to update the information when you travel to the beautiful country again.
Those who hold other valid visas are not forced to update their personal information.
But it's best to register too. For example, Tian Qing's five-year visa was also registered before.
After all, one thing is worse than one thing less. If you are checked when you pass the customs because you don't have the registration information, and the language is still blocked and you can't communicate, then it will be embarrassing.
After handling EVUS's affairs, Xu Qiu approached Feifei Wu and asked, "Who are the experts who came to the meeting this time?"
Wu Feifei pointed to the computer screen: "Here, look at it for yourself."
Xu Qiu looked at her computer screen. There was an open WORD file with the meeting schedule. It is still empty. Below is the list of experts who will give reports at the meeting.
There are a total of eight experts in the list, and most of them are familiar names.
They include Gong Yuanjiang from Kainan University, Lu Changjun from Chinese Academy of Sciences, Zheng Xiao from Sichuan University, Bao Yuanyou from Beijing Airlines University, and Feng Shengdong who flew over from Lund University in Sweden.
There is also Liang Haoxian, the small boss of Xu Zhenghong's research group and the developer of IDTBR materials.
Xu Zhenghong did not come to this meeting. After all, his age is indeed relatively old, and he has basically retreated to the second line. On most occasions, he would not come forward in person, but send Liang Haoxian to come forward.
The last time Xu Zhenghong went to a meeting held by Gong Yuanjiang, it was probably because they had better personal relationships.
The friendship between Wei Xingsi and Xu Zhenghong is relatively weak. After all, Mr. Wei has just returned to China and Gong Yuanjiang has been operating in China for many years.
In addition, there is an interesting name, Ma Weiwei.
Ma Weiwei is the only female scientist at this conference, and it is also an old acquaintance of Teacher Wei. I don't know if it is the other person that Teacher Wei actively invited.
Finally, it was Xu Qiu. This time Wei Xingsi did not write his name, but instead wrote Xu Qiu's name and sent it to Wu Feifei.
Xu Qiu is also the only speaker at the conference without a title. The rest of the speakers are all professors, and many of them are at the "excellent youth" and "Yangtze River" level.
The schedule of the meeting is similar to the last meeting organized by Gong Yuanjiang:
On Sunday, some people who have a good relationship with Teacher Wei, such as Gong Yuanjiang and Feng Shengdong, will come early.
On Monday, the main thing is for everyone to go around the campus, go around, visit the laboratory, and have a private chat.
On Tuesday, the conference officially began. There were a total of eight reporting experts. Xu Qiu asked Feifei Wu to arrange him for the second in the morning, Gong Yuanjiang for the first in the morning, and Feng Shengdong as the fourth in the morning.
The order of the others is not very important, and Wu Feifei directly arranged according to the ROLL point.
Each person will report 30 minutes and ask questions 15 minutes. There are four sessions in the morning, starting at 9 o’clock and ending at 12 o’clock. There are also 4 sessions in the afternoon, starting at 2 o’clock and ending at 5 o’clock. The time is still relatively tight. of.
After discussing the meeting arrangements with Feifei Wu, Xu Qiu continued to improve his PPT. The skeleton was built before, but now it needs to fill in the content.
After busy working all afternoon, Xu Qiu finally finished the conference PPT in the evening.
He asked Tian Qing for a template, decorated the PPT, and then took the PPT to Wei Xingsi to discuss and modify it.
After reading it, Wei Xingsi only corrected some formatting issues and expressed his satisfaction with the content.
Including Xu Qiu's plan to make public their IDIC-4F work on "Nature Energy" at the conference, Wei Xingsi did not raise any objections.
The main reason is that this "Nature Energy" is basically stable. Even if others hear their report during this time period, it is difficult to take this job away.
In addition, Wei Xingsi has the same considerations as Xu Qiu, that is, as a host, he must always have some work that can be done.
Although there is a "Joule", it is a review article after all, and the weight is not heavy enough, and a system with an efficiency of over 13% will be even more shocking.
After finishing the conference PPT, Xu Qiu did not continue to prepare the speech, but planned to play on the spot.
These articles were all sent out by his hand, so that he won't be able to tell them at that time.
Xu Qiu didn't plan to continue the experiment this week. The liver exploded a little bit too hard last week and needs to be slowed down first.
However, the simulation laboratory was still running as usual, based on the several directions he had looked forward to at the group meeting.
Although no experiment is done, it is impossible to paddle.
During this period of time, some other things have been accumulated, and Xu Qiu needs to deal with them one by one.
On Tuesday morning, Xu Qiu compiled the fund summary reports written by others in the organic photovoltaic team in order to get the final version that could be submitted.
This work is not difficult to do. Just when I made the PPT for the conference on Monday, I sorted out the story line of the ITIC series.
Now Xu Qiu's perspective is very clear, just like a puzzle, put the designated work in the designated position, occasionally change a few wrong expressions, repeat the words, and add a few sentences.
In the afternoon and evening, Xu Qiu started to summarize this year's work. After all, it was the end of the year.
Just like last year's work summary, the English version organizes each published article into a PPT. This work is not difficult, just a little bit trivial.
On Wednesday, Xu Qiu helped to revise the fund book, including the key projects from Wei Xingsi and the Jieqing Fund from Wu Shengnan.
The submitted articles are reviewed by reviewers. As long as the work is not too bad, there is a chance to accept the revised articles.
There are also "reviews" in the book, but because the competition between the research groups for project funding is very fierce, especially for notebooks such as key projects and the Jieqing Fund, the difference in writing will be directly cool, and there will be almost no modification. Opportunities must be polished very well by themselves.
On Thursday, Xu Qiu took the time to read the recently published literature while attending class.
In general, the recent heat in the field of organic photovoltaics has not diminished.
Among them, one of the more interesting works was published on AEM, and the corresponding author is Ma Weiwei.
The materials they used are ITIC and these two non-fullerene acceptor materials. The main highlight is the non-halogen solvent, which takes into account the stability test of the non-fullerene system.
They pointed out in the introduction:
At present, the preparation of high-efficiency organic solar cells generally uses halogenated aromatic hydrocarbon solvents, such as chloroform, chlorobenzene, dichlorobenzene, etc. These solvents have high toxicity. , Will bring great harm to the health of researchers.
Moreover, these solvents are directly discharged into the atmosphere, which will also cause pollution and harm to the environment.
From the standpoint of production cost, the cost price of these solvents is also very high. These unfavorable factors limit the large-scale production and industrial application of halogenated solvents in the preparation of organic solar cells, and run counter to the current purpose of green chemistry.
Therefore, taking health and environmental protection as the starting point, it is urgent to develop low-toxic or even non-toxic non-halogenated aromatic hydrocarbon solvents to prepare organic solar cells, and it is also the only way for organic solar cells to be commercialized. "
At first glance, it makes sense and awe-inspiring.
Then, Xu Qiu looked at the solvent used in the article.
I thought there would be some surprises, but found out that they used toluene...
Changing from chlorobenzene to toluene always feels a little bit like 50 steps.
After all, the harm of toluene is not small...
But at least it can be regarded as the first step, to remove the chlorine first, and then consider whether it can be replaced with a greener solvent.
In the supporting information for this article, UU read www.uukanshu. Com and they mentioned Blue River Optoelectronics Material Company, saying that ITIC and other materials were purchased from here.
Speaking of this, when Xu Qiu bought optoelectronic materials, he originally planned to choose Blue River Optoelectronics Materials Co., but was later stopped by Wei Xingsi, saying: "Blue River Optoelectronics Materials Co., Ltd., we have a stake, may be risky."
Xu Qiu pondered over it carefully and found that it was indeed the case. Some of the scientific research funds spent had benefited him.
Although they are definitely not greedy for money, it is not very easy to explain if someone really becomes more genuine.
The squeegee equipment bought was not a big problem, because they did not participate in the shares of the Blue River Main Company.
It's no wonder that Wei Xingsi chose to take a low-key stake in Blue River's company.
It is said that some colleges and universities do not allow professors to open companies in private, but Magic University does not have such a rule. Maybe it is because they are afraid that outstanding professors will leave in groups?
After all, the salaries of college professors are not high, and many of the big men in economics schools have assets in their hands of more than 100 million yuan.