Chapter 275: Money is burning

After Wu Feifei finished her speech, she walked to the desk next to Teacher Wei and began to order documents with the stapler, making "pu" and "pu" sounds.
　　 Wei Xingsi put on a serious face, and said in a deep voice to Duan Yun: "Duan Yun, let's talk about it."
Duan Yun got up and said without rush: "I tried PVDF-based thermoelectric devices with nickel nanowires last week, but the effect was not very good. I guess it is the problem of the raw material of the nickel nanowires. Agglomeration may have occurred, or it is itself. The dispersion is not good."
　　 The drugs and reagents in the laboratory are basically bought from other reagent vendors or material companies, and 100% yield cannot be guaranteed, and occasional problems may occur, which affect the normal progress of the experiment.
In the field of organic photovoltaics, the Shenzhen company that Xu Qiu cooperated with has always provided good quality photoelectric materials. In the previous small molecule synthesis and polymerization reactions, and monomer raw materials, there have only been two For the second problem, the other party later directly sent a batch of new materials; as for the directly purchased polymer materials, the problem never occurred.
Because the company in Shencheng has a large organic synthesis laboratory, as well as a laboratory for processing photovoltaic devices, including glove boxes, simulated solar light sources, high-precision source meters, and simulation test software. Teacher Wei's two laboratories are poor.
At the same time, there are more than a dozen undergraduates, masters, and doctors in related fields working in it. After each large-scale synthesis, they will first test the performance of the materials in their own optoelectronic laboratory, and only sell them after they are qualified. The rate remains very high.
In fact, they have the ability to develop new materials, but they do not do independent research and development. They usually search for the latest published articles, analyze which materials may be used in large quantities, and then synthesize them and actively promote the cooperation with the research group to sell money; or accept The customization of the research group, like when Xu Qiu made the PCE11 system, was that Yan Hu and his research group customized a batch of raw materials, which helped Xu Qiu a lot.
　　 After hearing the results reported by Duan Yun, Wei Xingsi remained silent and stared at Duan Yun.
　　 Duan Yun is not to be outdone, and stares at Teacher Wei. If this scene is placed in an anime, it is estimated that an arc light effect will be added between the eyes of the two.
Next to 　　, Feifei Wu is still using the stapler to bind the documents, making "puff" and "puff" sounds from time to time.
　　Because she was behind Teacher Wei, she had no scruples, and made two consecutive grimacing faces in the direction of Xu Qiu and Han Jiaying, which made Xu Qiu almost laugh.
　　 After a little half a minute, Wei Xingsi sighed lightly and said: "Duan Yun, go to the manufacturer and ask what's the matter."
"Well," Duan Yun responded as if nothing happened just now, "We have to wait for them to go to work tomorrow. It is estimated that we have to send the remaining nanowires back to the manufacturer, and then wait for them to issue a test report. They can't do it for the time being. This system."
　　 "Okay, okay," Wei Xingsi leaned against the back of the seat behind him, exhaled again, raised his hands, shook it twice, and said, "Do you have any other experimental ideas."
"Yes!" Duan Yun focused his head first, and then calmly said: "I plan to add single-wall/multi-wall carbon nanotubes and graphene to the organic matrix material PVDF, and explore the introduction of one- and two-dimensional materials, which will help thermoelectric devices The material laboratory has the effect of performance, and I bought it before."
"The idea is okay, so let's do it first." Wei Xingsi's expression lightened a little, after thinking for a moment, he made a suggestion: "You can expand the types of one- and two-dimensional nanomaterials, such as trying silver nanowires, Silver nanosheets."
　　 Before Duan Yun's reply, Wei Xingsi turned his head to look at Tian Qing, calmed his expression, and said, "Tian Qing, you submitted a review plan last week. This week, look at the literature and write the article."
　　 "But it's still the plan now..." Tian Qing hesitated, saying that he meant to write a summary in advance. If the plan was voted out and the result was rejected, wouldn't it be a waste of writing.
"Don't worry about this," Wei Xingsi said confidently: "The direction of'Research on the Mechanism of Perovskite Photovoltaics' is still quite popular, even if the editor of 　Rev. did not pass our plan and wrote the article, Can you submit to other journals."
　　 "Okay." Tian Qing nodded in response.
　　 Wei Xingsi looked at Sun Wo again.
　　Sun Wo took the initiative to get up and said, "Last week I was helping Feifei Wu to prepare a two-dimensional perovskite device, and at the same time writing a graduation project."
　　 "Oh," Teacher Wei asked casually: "Then I will help you change your graduation design, or Teacher Fang will help you change it."
　　Sun Wo is an undergraduate who came from the senior year of undergraduate study, but he is not a joint training through formal channels. The final graduation design and graduation defense are all conducted at the undergraduate school.
　　 The instructor at his undergraduate school is Teacher Fang. Because Teacher Fang is familiar with Teacher Wei, he was sent over in advance.
Sun Wo is considered a "black household" at the Magic University. If he had a safety accident in the laboratory, the impact on Teacher Wei would be very large, and therefore, Teacher Wei did not dare to send him to Zhangjiang for experiments. But stayed under the eyelids.
　　 "Teacher Fang said that you can help me change it." Sun Wo replied.
　　 "Okay, when the graduation design is finished, you will show Wu Feifei first." After that, Wei Xingsi turned around and asked: "Wu Feifei, have your documents been ordered?"
　　 "It's all bound." Wu Feifei shook the thick documents in her hand.
　　 "Then you can take it all, and then divide the organic, perovskite, and thermoelectricity into account by yourself." Wei Xing thought.
　　 Then Chen Wanqing reported: "In the morning, I, Xu Qiu, and Han Jiaying discussed about the plan to make a non-fullerene receptor material based on the IDT-ICIN structure. There are four feasible optimization routes, namely..."
"...My plan is to choose the fourth path first, which is to imitate the method of the "Nature·Materials" document. I named this ADA variant structure structure, where π represents the conjugate unit, which includes both Unit D, including unit A. The first-generation molecular structure I plan to develop is tentatively designated IDT-2BT-2ICIN, which is my synthetic route..."
　　 "Yes," Wei Xingsi was more satisfied, and said with a smile: "When did you come in the morning, why didn't you meet you."
　　 Chen Wanqing explained: "When I came, there were Wu Feifei and Wu Shengnan in the laboratory. In order not to disturb them, we went to the small conference room on the third floor to discuss."
After Sister 　　 finished speaking, Xu Qiu and Teacher Wei exchanged questions and answers:
　　 "Xu Qiu, when will your graduation project be submitted?"
　　 "May 21st, which is the next Friday."
　　 "What about the reply?"
　　 "At the beginning of June, the specific time has not been set yet."
　　 "Okay, show me your graduation project after you finish writing it. Do you have any plans for this time?"
"I plan to finish writing Han Jiaying's B3T-6 series of articles first, and then make the graduation project and prepare to defend, because there may be a lot of things near the graduation school, I plan to stay in Handan and help them make devices." "
　　 "Oh, I almost forgot about 3D-PDI and another article I didn't vote for." Wei Xingsi paused and asked, "Why don't you plan to continue to use the PDI system? I think the efficiency is hopeful by 10%."
"I also think that the 3D-PDI system has a 10% chance." Xu Qiu nodded first, and then changed the conversation: "But it may spend a lot of time on the optimization of materials and devices. Relatively speaking, the ADA type Non-fullerene receptor molecules have more potential."
　　 "That's true," Wei Xingsi echoed, "Okay, you plan to build the ADA system, and I support you. If you have any requirements, I can ask."
　　 Xu Qiu said: "Han Jiaying may need to buy some monomer materials." After finishing speaking, he patted the school the shoulder and signaled her to start reporting.
　　 "Han Jiaying, come on," Wei Xingsi smiled, "Let me see if you have any ideas."
　　 During the noon break, according to Xu Qiu's idea, according to the product catalog of the photoelectric company in Shencheng, she designed several synthetic routes for donor materials. The feeling that the materials can be bought directly is still very comfortable.
Han Jiaying said to the projection screen: "I plan to synthesize two types of wide-bandgap polymer donor materials, one of which is based on FTAZ materials, the D unit is a BDT structure, and the A unit is a FTAZ structure. The focus is to optimize the BDT structure. Side chains, and the introduction of heteroatoms...
The other is based on PBDB-T, the D unit is also a BDT structure, and the A unit is BDD. The optimization idea is similar to the first ~EbookFREE.me~ The purpose is to change the conjugate main chain as little as possible. Structure……"
Xu Qiu inserted a sentence at the right time: "I think in recent years, in terms of structural units, the research on donor materials has been very sufficient. Many existing units can be used directly, and there is no need for too much innovation for the time being. To be conservative, just use the existing wide band gap material for modification.
　　 Wei Xing thought for a while, nodded and said: "I agree, just buy what you need."
　　 Then, Teacher Wei said: "Finally, let our new postdoctoral fellow talk about it."
　　 didn’t know if it was because of nervousness, or using the big computer here for the first time. Wu Shengnan couldn’t find the hole to insert the USB flash drive. He only found it under Wu Feifei’s reminder and started reporting:
　　 "I have already written the plan for the literature review, and now I will make a literature report.
Perovskite quantum dots are a new type of optoelectronic materials, which have the advantages of ultra-high photoluminescence quantum efficiency, narrow line width, wide color gamut, solution synthesis and processing, etc., and have shown huge applications in lighting and display fields. potential.
　　……
　　 A key parameter of quantum dot materials is the fluorescence quantum yield, which can be tested with our TRPL equipment, but an integrating sphere needs to be installed for quantitative analysis. "
　　 In response to Wu Shengnan's gaze, Wei Xingsi waved his hand and said, "I see, Xu Qiu contact Qiu Heming and ask about the price."
　　 There is a group meeting, one or two, all come to ask for money, the expenses are burning.