Chapter 104: Awesome

　　 One group meeting every week.
　　 First, Feifei Wu and Tian Qing reported.
　　 Their work was originally intended to merge.
　　 After hearing their report, Mr. Wei suggested that the two should split their work.
　　 If you put them together, you can’t publish a high-quality one-district essay, so it's better to split them apart and publish two two-division essays.
　　 A job with "adding volatile additives, perovskite photovoltaic devices without high temperature thermal annealing" is the selling point.
　　 The other is to focus on using CELIV and TOF methods to study the "charge transport mechanism of perovskite photovoltaic devices."
After 　　, Duan Yun reported that he had built the equipment for a week, but the equipment was still not set up.
　　 After hearing this, Teacher Wei's face turned black like a man, and his voice became much harsher, and asked:
　　 "How long can it be done?"
　　 is very similar to what Chen Wanqing described before, and it looks weird.
　　 However, Duan Yun didn't move like a mountain, and said slowly:
　　 "It's almost done, give me some more time, now I am trying to solve the heat dissipation problem."
　　 After several years of ups and downs in society, Duan Yun chose to continue his Ph.D. degree. His ability to withstand pressure is relatively strong.
　　 In fact, although Duan Yun knows how to paddle, it is only to the point that "others 996 work 12 hours a day, and he works 10 hours a day".
　　The main reason for the lack of progress is that it is very difficult for one person to build a set of sophisticated equipment from scratch.
　　 There is always a situation that solves a problem and turns around and encounters a new problem.
　　 Xu Qiu doesn't know much about thermoelectricity, but probably knows how it works.
　　 Thermoelectric materials are materials that can convert temperature differences into electrical energy.
　　The function of the Duanyun instrument is to heat one end of the thermoelectric material, cool the other end or maintain the normal temperature, while testing its electrical properties.
　　 Then, heat dissipation and heat insulation are very good, and there must be a material that isolates heat conduction between the hot end and the cold end to prevent the temperature from passing through, and at the same time to ensure the temperature stability.
　　 The principle is simple, but it is not so easy to implement it on a specific instrument.
　　 For example, it is necessary to satisfy the condition that the temperature fluctuation is controlled within 0.1 Kelvin for a long time.
　　 Actually, Wei Xingsi also knows the difficulty, but the pressure that should be given is still to be given, but it seems that his approach does not have much effect on Duan Yun.
　　 Relatively speaking, Chen Wanqing eats his way more.
　　 If it weren't for Teacher Wei to keep her pressure, with her experimental ability, it is estimated that there is no work done yet.
　　 During graduate school, the relationship between tutors and students is more like a state of mutual checks and balances:
　　On the one hand, the tutor should urge the student to work more to meet the graduation requirements, and at the same time help him make more achievements;
　　 On the other hand, you can't be forced to be too eager. If a student quits in a rage, it will also cause a great blow to the teacher.
　　 Some students drop out. In addition to one less student name, the teacher will have a negative impact on his reputation. If there is news, it will be even more out of control.
　　 As soon as the news of leaving school comes out, it will definitely spread in the school. Other students will definitely not think it is the problem of the student who dropped out, and will blame the problem on the teacher.
　　 In recent years, it has been difficult for this teacher to recruit students who are undergraduates in the school. He can only think of trying to trick students outside the school into the pit.
　　 Like He Xilan from the Department of Materials Science, the reputation of "persuading quit" has spread throughout the school, and all her students are from other schools.
　　 But relatively speaking, among teachers and students, students are still relatively disadvantaged.
　　 If you encounter a BT tutor, the student's countermeasures are very simple, and basically there is only one way to drop out.
　　Because, whether a student can graduate successfully, almost all depends on the tutor "don't let you go." In this regard, the power of foreign tutors is greater than that of domestic ones.
　　Similar to the revision of graduation thesis, the arrangement of defense, including various graduation-related documents, requires the signature of the tutor to take effect.
　　 broke the news before that some students met the school's graduation requirements, but the tutor has not let go.
　　 He first passed his graduation request online using his tutor’s account, and then forged his tutor’s signature.
　　 was naturally discovered later, but the incident did not make a big deal, the news was only spread in the department, and the student finally graduated successfully.
　　……
　　 Next, Chen Wanqing reported that her ternary conjugated copolymer donor material had an efficiency of 8.24%.
　　 "Yes, 8% efficiency, is there room for further improvement?" Wei Xingsi asked.
　　 Chen Wanqing was silent for a moment and shook her head.
　　 "Okay, then while supplementing other experiments, doing a few more batches of devices while writing the article." Teacher Wei said:
　　 "When writing an article, pay attention to the language expression, and let Xu Qiu help you look at it, especially the summary and conclusion."
"Ok."
　　 "Any other content?"
　　 "No more."
　　 "When will the next light source test be scheduled?"
　　 "After National Day, I don't remember the exact time."
　　 "Okay, don't forget to ask me to do the safety audit of the light source in advance.
　　 Teacher Wei finished speaking, took out an envelope from the drawer and handed it over.
　　 "Xu Qiu, I received the email this morning, and your article has been accepted."
　　 Xu Qiu stood up, took the envelope, and took it.
　　 Estimated to be around 1,000 yuan, after all, the impact factor of the journal he published is not high, only 5 or 6.
　　 "Congratulations to Xu Qiu, everyone." Wei Xingsi took the lead and applauded.
　　 He also looked at Duan Yun specifically, which probably meant "You see that others have achieved results~EbookFREE.me~What about your results?"
　　 Duan Yun also felt bitter in his heart. He knew that it was better to switch to photovoltaics.
　　 Xu Qiu clamped the envelope in his experiment notebook and began to report on the progress of the experiment last week.
　　 P2FBT4T system, the efficiency is now 6.97%, and there is room for further improvement.
　　 In addition, he also mentioned that there may be other research groups working on this system.
　　 Teacher Wei was very happy to hear the first half, but his face changed immediately after hearing it.
　　 Xu Qiu thought to himself, could it be that teacher Wei was robbed of the results when he was doing scientific research, so he cared so much?
　　 Wei Xingsi stood up, pacing and thinking in the room.
　　 After ten seconds, he stopped and asked:
　　 "Has the newly purchased monomer material arrived?"
　　 "From the logistics information provided by the other party, it is estimated that it will arrive tomorrow."
　　 "How much did you buy before? Is it enough?"
　　 "Two hundred milligrams."
　　"Add two hundred milligrams for each. Now I want to compete with others.
　　 Xu Qiu, when the monomer arrives, you will immediately go to Zhangjiang to do the synthesis, and each reaction will be thrown in two at a time to prevent unexpected situations such as experimental failure. "
　　 After speaking, Wei Xingsi turned to Chen Wanqing again and said:
　　 "Wait for Xu Qiuxin's batch of materials to be produced, and quickly build a batch of devices. If the device efficiency can reach 8%, you should stop your work first and help him first."
　　 Chen Wanqing nodded, feeling in her heart:
　　 I did not expect that my dignified doctoral student would also be reduced to working for undergraduates.
　　 However, Xu Qiu's current comprehensive strength in the field of organic photovoltaic research should be close to or even surpassed.
　　 is really awesome.