Chapter 106: Identity conversion

　　 After understanding the basic situation of the two new members, Xu Qiu took them to visit the laboratory.
　　 Because the laboratory is only blocked by a glass wall and the sound insulation effect is almost zero, Chen Wanqing and Wu Feifei have also heard the introduction voice of Teacher Wei just now.
　　 For new members to join, everyone is still very welcome.
　　 Now, the team doing organic photovoltaics has expanded to three people, and the team doing perovskite photovoltaics has also expanded to three people. Although Tian Qing is doing mechanism research, he is now mainly doing perovskite.
　　 Duan Yun is the only one who is still suffering in the thermoelectric field.
　　"Whether it is an organic or perovskite photovoltaic device, the cell structure is similar, which is a sandwich structure similar to a sandwich.
"From bottom to top" are the substrate, electrode, transmission layer, effective layer, transmission layer, and electrode.
　　 Among them, the main experimental operations involved include cleaning substrates, spin coating, vacuum coating, device testing, and so on. "
　　 "This is the glove box, and it is also the place where the effective layer is prepared. It is in a nitrogen atmosphere..."
　　 Xu Qiu introduced it endlessly.
　　 Once upon a time, he also changed from the person who was taught to the mentor of other people's scientific research.
　　 "Today I will teach you how to clean the substrate."
　　 Han Jiaying and Chen Mingbo also started their lab trip.
　　……
　　 Around 5:30 in the afternoon, after Xu Qiu and them agreed on the time to come to the laboratory, the two left.
　　 After all, they are still junior students, and there are still a lot of academic courses.
　　 Moreover, Chen Mingbo also took the second major of economics, so he has less free time.
　　 This kind of secondary specialization doesn't have much practical use, it's pure interest.
　　 and the threshold is very low.
　　 Generally, the application starts in the summer after the freshman year. Once you apply, you can basically pass it.
　　 The second major is two academic years, that is, sophomore and junior, or junior and senior, you need to study about 36 additional credits, and each credit has to pay 130 yuan tuition.
　　 In addition to the second major, there are also second degrees, such as the second degree in philosophy, which requires sophomore to senior year. After the three academic years, the courses add up to about 50 credits, and additional tuition is also required.
　　The courses taken are all professional courses, and some courses even have to take classes with students of the same major and take exams together.
　　Moreover, there are also requirements for grades. For example, if the grade point is higher than 2.0, the corresponding second-year junior college and second-degree certificates will be issued without passing a subject.
　　……
　　 In the evening, Chen Wanqing transferred the devices prepared today to the vacuum coating machine and began to vacuum.
After 　　 was done, she returned to the desk and sat down, but before the stool was warm, Wei Xingsi came to 216 and said to her:
　　"There is good news. Just received the email, the editor agreed to our appeal request, and now we will forward your article to the fourth reviewer.
　　 By the way, you have finished reading the documents for you before. Come and tell me, Xu Qiu, you too. "
　　 Chen Wanqing nodded, but the editor gave her another chance. This was a surprise.
　　 Sure enough, you still have to strive for what you should strive for, maybe a miracle will happen.
　　 After Teacher Wei left, she rummaged through the desk and said:
　　 "Wu Feifei, wait for me to look at the evaporation machine."
"it is good."
　　 "What did Teacher Wei ask me to do in the past?" Xu Qiu asked curiously.
　　 "I guess it is to let you understand the general process of the literature, and then let you help me share some literature."
　　 Chen Wanqing sorted out the literature, there are more than a dozen articles.
　　 She took the document in her hand, brought the experiment notebook and pen, and stood up and said:
　　 "Let's go, you will know when you go."
　　……
　　 The two came to Room 218.
　　 Chen Wanqing found a stool to sit down, and Xu Qiu also sat next to her.
　　 "Let's start." Wei Xingsi said while operating the computer.
　　 "In this article, they synthesized a series of polymer donor materials to optimize the optoelectronic performance of the device by adjusting the side chain," Chen Wanqing said:
　　"The results show that the performance with a thiophene side chain is the best."
　　 "Why have thiophene side chains good? Have you ever thought about this?" Teacher Wei asked casually.
　　 Chen Wanqing was taken aback for a moment, and thought: "Yes, why?"
　　 She quickly scanned the abstract of the paper, but she didn’t seem to mention it, so she continued to look down...
　　 At this time, a finger stretched out from the side and pointed to a text in the guidance section.
　　 "Sister, here." Xu Qiu said in a low voice.
　　 "Oh, the thiophene side chain can form a conjugated structure with the main chain, so that the charge can be transported on a two-dimensional scale."
　　 Chen Wanqing finished speaking and saw that Teacher Wei was silent, and added:
　　 "This is how it is explained in the article."
　　 "Well, go ahead."
After 　　, Teacher Wei didn't ask any more questions. Every time Chen Wanqing finished an article, he responded softly.
　　 It seems that at first he just wanted to give the senior sister a chance.
　　 And Mr. Wei is also busy with his own business. The printer behind him is in working condition from time to time, making a buzzing printing sound.
　　……
　　 "I'm finished."
　　 "It's finished? Then you go to sort the documents." Wei Xing thought:
　　"Xu Qiu, you have learned how to talk about documents, and you can try to talk later. This is very helpful for improving your speaking ability~EbookFREE.me~ After that, he pointed to the printer and said:
　　 "Here is the latest batch of documents, you use a stapler to staple them, you and Chen Wanqing separate the organic photovoltaic documents, and you will tell me a few more articles next time."
"it is good."
　　 Xu Qiu picked up the paper from the printer and fixed the upper left corner of it with a stapler.
　　 Each document is printed on both sides, about three to five pages of A4 paper.
　　 A total of more than a dozen articles, including both organic photovoltaics, perovskite, and a thermoelectric, periodicals are owned by Wiely.
　　 Teacher Wei should visit the websites of major journals regularly, scan the newly published documents, find relevant documents in three fields, download and print them.
　　 picked up the bound documents, Xu Qiu was about to leave.
　　 At this time, he saw the senior sister standing next to a filing cabinet, sorting out the documents just mentioned and putting it into it.
　　 After a cycle of paper documents, they returned to Teacher Wei’s office:
　　 was first printed out from Teacher Wei’s office, handed to the students, and then put in his file cabinet after recounting.
　　 This is also the habit of Teacher Wei using paper documents. For example, Xu Qiu and Chen Wanqing usually read electronic documents, which is more convenient for retrieval.
　　……
　　 The next morning, Chen Wanqing received a notice from the drug warehouse that the previously purchased monomer had arrived in Zhangjiang.
　　 Xu Qiu and Chen Wanqing divide the labor, he is responsible for the synthesis, and she stays in Handan to do some basic characterization.
　　 As for the distribution of the new school girl, it depends on her own choice.
　　 In theory, it is more appropriate to start with cleaning the substrate, spin-coating the transfer layer, evaporation, and testing that do not require technology.