Chapter 257: The current students, the first generation is better than the first

After the group meeting was over, everyone left one after another, Xu Qiu stayed alone, spent more than ten minutes with Teacher Wei, and went through his own article again.
　　 During the discussion, Xu Qiu could see from Wei Xingsi's expression that Mr. Wei values ​​this NC article very seriously, and his attention is obviously higher than that of the AM that he published before.
　　 It is not difficult to understand. If this NC can be published smoothly, it will be the first corresponding author of Wei Xingsi's first publication of the journal "Nature" after returning to China. This is a small milestone event.
You should know that Wei Xingsi has done research abroad for more than ten years. Although there are several articles in this old-brand material and top journal of chemistry, none of the articles at the beginning of "Nature" is the first article or the first corresponding author. of.
　　 There are two, three, four, five, six, seven-eight authors, or the second and third corresponding authors of "Nature" articles, Wei Xingsi has, and the number is quite large, close to ten.
　　 In general, Mr. Wei's scientific research ability may not be top, but PY skills are really good.
NC is a small sub-journal of "Nature" and is considered to be a journal of the same level as AM. The former may be slightly stronger than the latter, but it will not be much stronger. The initial positioning for NC is to reclaim those impacts on the main journal of "Nature" or The failed manuscript of Dazi Magazine.
People's pursuit of NC is more because it carries the word "Nature", just like the so-called "NC Second" Sci.　　Rep. launched by the "Nature" periodical company. Later, it rushed to the third district. Perhaps it is because there is no N in the journal name.
After all, the status of the three top journals of "Cell", "Nature", and "Science" is recognized in the academic circle. Most researchers are eager to publish an article in the three top journals so that they have the opportunity to mix in The top circle in academia.
　　 However, the reality is cruel. Most people in the world are mortals, and most scientific researchers are just ordinary scientific researchers. It is impossible for everyone to achieve shocking results.
They think they can’t publish the top three CNS journals, and it’s not easy to publish their major journals. Take the major journals of Nature, such as Nature Materials, for example, their impact factors are similar to the main journal. Around 40, and some are even higher than the main journal. Many articles published on it are not necessarily less influential than those published in the main journal.
　　 can't go to the main publication, nor can it be the Dazi publication. At this time, NC with the "natural" prefix is ​​a good choice.
　　 Post an NC, you can also make a big splash when you go out to a meeting.
　　 Pseudo-big guy: "Haha, our research group likes to mention a sub-journal of "Nature" this year." (In fact, it is an NC)
　　True Big Brother A: "Congratulations, come over and play some time." (I just published an article on "Science" last year)
　　True Big Brother B: "Big Brother, Collaborative Cutting?" (I just published an "Nature·Materials" this year)
　　 Although others may be thinking "what is the magazine, it must be NC", but at least it won't lose face.
It can be regarded as contempt for the chain. People who can publish CNS main journals or Dazi journals will think that NC is the same, but people who can’t even publish NC don’t even have the qualifications to be despised and it’s difficult to get into their circle. in.
　　……
After the two discussed, Wei Xingsi glanced at the time and said, "It should be past seven o'clock on the Swedish side. I'll contact Feng Shengdong." After that, he searched through the WeChat contacts and dialed one. WeChat phone.
　　 Xu Qiuxin said, it’s Sunday today, just after seven o’clock in the morning, just call someone?
　　 Unexpectedly, after more than twenty seconds, the call was really connected.
　　 Wei Xingsi didn't evade Xu Qiu, so he turned on the speakerphone.
　　 "Hello, Teacher Wei?" Feng Shengdong greeted him actively, speaking in Chinese. His voice sounded young. According to Xu Qiu's inference, he was probably in his thirties.
　　 "Hey, Teacher Feng, I didn't bother you." Teacher Wei said mildly.
"No, no, I just finished washing and I am making breakfast for myself." Feng Shengdong's environment is relatively quiet as a whole. It should be at home or in the dormitory of the faculty and staff. You can vaguely hear the sound of a kettle boiling water in the receiver. .
"That's good," Wei Xingsi didn't chat too much, and went straight to the topic: "I just finished a group meeting for the students. We have a job and want to do it. 　　 Commun. That NC, as you know, this journal is about mechanism research. It’s more demanding. The main reason for asking you is to ask you to test the data, and then write some analysis and put it in the text.
The main thing that needs to be tested by the other party is TAS. Through this test, the charge transport inside the blend film under the picosecond time scale can be clarified. As for TRPL, it is only incidental. After all, the samples required for these two tests are the same. Unexpected.
　　 "It's okay, no problem," Feng Shengdong's tone suddenly became active, "I have a lot of time left on my computer in the near future. You can send samples as soon as possible, and I will help you test it myself."
Although Teacher Wei didn’t say it in detail, this level of help in academic circles is basically equivalent to promising Feng Shengdong to include a corresponding author in the article. Of course, Feng Shengdong’s boss T??nu may also come to share. After all, the equipment used is under the name of T??nu, and if the other party has a student participating in the test, the student will also be named the author, but the ranking will not be too high.
　　 "That's OK." Seeing the other party's full promise, Wei Xingsi also relaxed, and further explained:
"Before I went to Sweden, the photoelectric conversion efficiency of this system made by my students was about 7.5%, and now it has broken through to 8.4%, breaking the world record in the field of PDI non-fullerene receptors. The hope of impacting NC is very high, and Once the main body of the article is basically written, there is no need for your research on the mechanism. I want to raise the quality of the work."
　　 "Did you tell me that when you were here before, the senior student who issued AM in the undergraduate course was called Xu Qiu, right?" Feng Shengdong asked.
　　 "That's right," Wei Xingsi said in surprise: "I just mentioned it casually at the time, I didn't expect you to remember it."
"Of course, when I was in my senior year, I didn't know where I was playing. I only published my first article in the second year of graduate school. The current students are really better than the generations," Feng Shengdong said with emotion like self-deprecating. Seeing I have mixed up till now, I haven't had an AM.
"What AM do you send for theoretical research in physics? Are they all PR series?" Wei Xingsi paused and said, "By the way, he is right next to me, Xu Qiu, and Feng Shengdong said hello. "
　　 "Mr. Feng, hello." Xu Qiu said hello politely. Feng Shengdong is an assistant professor. It sounds similar to a teaching assistant. In fact, he can take master students or doctoral students. It is similar to doctoral tutors. It is still very NB. Even if he fails to pass the six-year assessment period, he cannot directly become a tenured faculty. You can transfer to other faculty positions. If you work for a few more years and then evaluate associate professors, you still have the chance to get tenure.
　　 "Hello, classmate Xu Qiu." Feng Shengdong also responded enthusiastically. Speaking of which, the two are really classmates, but they are many years behind.
　　 Wei Xingsi interjected: "Xu Qiu, you and Teacher Feng will talk about the sample, this must be implemented as soon as possible, and the sample should be sent."
"Okay," Xu Qiu repeated his current line of thought to Feng Shengdong: "A new type of 3D-PDI molecule was developed, involving three molecular structure optimization methods: three-dimensionalization, fused cyclization, and introduction of selenium atoms... …"
　　 During the story, Feng Shengdong did not say anything. Xu Qiu originally thought that the other party was listening carefully, until he saw a WeChat pop-up reminding "The current call signal is poor"...
Xu Qiu made a complaint about the international line, and after a few "hello", he hung up the phone and reconnected without hearing a response. Then he talked about it from the point where he left off, focusing on the TRPL test. content.
　　 Feng Shengdong is also more interested in this content, and said: "Let's send me the results of the experiment we added."
　　 "Okay," Xu Qiuying made a peace and switched the subject, "If we want to prepare samples here, are there any requirements for sample preparation?"
"Hmm..." Feng Shengdong thought for a while, and said, "Use quartz glass for the substrate. The size does not need to be too large, just use a square of 1 cm2, and the film should be uniform. Prepare three replicates for each system. The samples are vacuum sealed and sent directly by express. By the way, don’t forget to prepare blank samples.

　　 "Quartz glass plate, 1 square centimeter in size, three duplicate samples, blank sample, vacuum sealed?" Xu Qiu said in a rhetorical tone of the key points he had just memorized.
　　 "That's right." Feng Shengdong said.
"What about the sample system, three generations of 3D-PDI molecules, do you need to prepare separate components and blend films for each of them?" Xu Qiu and Feng Shengdong discussed that TAS is a relatively unfamiliar test method for him. I wanted to copy Feng Shengdong's skills along the radio wave signal, but couldn't do it.
　　 However, this kind of theory-oriented skills are mainly copied from the image data related to experimental operations. The focus is on model construction and data analysis, and it is difficult to speed up.
"Well, this idea is feasible. Separate and blended samples can be compared and analyzed intuitively, and the three generations of molecules can also be compared with each other." Feng Shengdong smiled and said: "It's not possible, you can think of everything Do all of the samples, anyway, it’s always right to do more.

　　 "Okay." Xu Qiu had no problems, and turned to look at Teacher Wei.
　　 Wei Xingsi has been listening, and seeing that Xu Qiu and Feng Shengdong have basically reached an agreement, no more nonsense, and directly ended the topic: "Then let's do this today, don't delay your eating early, and then we will talk to the three if you have any questions."
　　 "Go, bye." Feng Shengdong said.
　　 "Bye." Wei Xingsi took the initiative to hang up and pushed Feng Shengdong's WeChat business card to Xu Qiu, and then said:
　　 "You can add teacher Feng's WeChat later, you can talk to him about any questions, and strive to get the results as soon as possible and vote the article."
　　 Xu Qiu nodded in response and sent a friend request to Feng Shengdong.
　　 Wei Xingsi said suddenly, "Thanks for your hard work during this period. I will talk to Feifei Wu later and raise your monthly subsidy to the standard of a doctoral student."
　　 "Thank you, Teacher Wei." Xu Qiu thanked him. Now he has changed from one person to two, and his expenses are indeed much higher. ‘Could it be that Teacher Wei also knew about him and his younger sister, so he gave him some more subsidies? ’
　　 "Yes, your workload is now stronger than that of the few doctoral students in the group." Wei Xingsi smiled and said, "Okay, you can go ahead."
　　 Xu Qiu let out an "um", and returned to 216, Feng Shengdong had already approved his friend request.
　　 Turning on the computer, Xu Qiu's data picture and the corresponding description part of the article were sent to Feng Shengdong. The other party also urged "Send samples early" like Teacher Wei, and seemed to be very concerned about this NC.
　　 Transient light absorption spectrum TAS samples, the substrate used is quartz glass. Compared with ordinary glass, quartz glass has a high spectral transmission and can be used in spacecraft and spectrophotometer optical systems.
For example, in Teacher Wei’s laboratory, the cuvette used to test the steady-state light absorption spectrum UV-vis of the solution is made of quartz glass, but Xu Qiu and others mainly do photovoltaic cell devices. For thin film testing, the glass substrates used are ordinary glass cut from glass slides.
　　 Therefore, there is no quartz glass in the laboratory, so you need to get it from the material office.
Xu Qiu just walked out of the door of 216, thinking that the young ladies (old aunts) of the material department were on weekends, but today is Sunday, and the material department is not open, so she turned back and muttered, "Prepare the solution first. "
　　 He glanced at Han Jiaying at the desk. The school girl was busy writing an article ~EbookFREE.me~ After she noticed Xu Qiu's gaze, she raised her head and smiled at him.
　　 Xu Qiu responded with a smile, and walked into the laboratory without disturbing her.
　　 Chen Wanqing was coming out of the spin-coating glove box. When Xu Qiu was away, she found a sample of FTAZ and configured an ICIN solution, planning to try a wave of devices.
　　 Xu Qiu quickly took over her position, feeling the remaining warmth left by the senior sister, found his lock box in the glove box, and checked the stock of various materials.
　　The first, second and third generation 3D-PDI materials all have reserves of more than 100 mg.
　　 There are a lot of materials, and Xu Qiu didn’t save it. Each system was prepared with 1 ml of solution for use.
A total of seven systems, including three separate components of 3D-PDI acceptor materials, P3TEA, which is the separate component of donor materials that best match the third-generation materials, and three acceptor and donor materials The blending solution.
　　 Among them, although the best aptamer donor material for the second-generation molecule is not P3TEA, but PCE10, for the sake of data consistency, Xu Qiu unified it with P3TEA.
　　 After all, the third-generation molecules are the protagonists.
　　 After preparing the solution, Xu Qiu returned to the desk again, thinking about what to do next.
　　 Then, I found that I had nothing to do.
　　 The article is basically finished, and the experiment cannot be done now.
　　 Xu Qiu waved his hands and started paddling.