Chapter 162: How to assess the level of scientific research

The 　　 welcome party is over, and the day has returned to the normal rhythm.
　　 Xu Qiu continued to take Han Jiaying to do experiments.
　　Actually, he also thought about whether he should just throw the finishing work directly to the school sister or school girl, and then go to new fields on his own, such as researching "non-fullerene derivative receptors".
　　 In the end, he still did not make such a decision, for many reasons:
　　 First of all, his current research on polymer donors is relatively mature, and there are many similar types of work to learn from.
　　 I encountered a bottleneck in the process of research. Looking through the literature, I might be able to get inspiration from the work of others.
　　 However, there are few related studies on non-fullerene derivative acceptors, and from the perspective of the photoelectric conversion efficiency of the device, there are not many successful cases.
　　 Learning from the work of others, it is very possible to bring myself into the ditch.
　　 Moreover, many related documents are five or six years ago.
　　 Because Teacher Wei will only give them the documents published in the recent field, Xu Qiu needs to search and study the documents independently, which will consume a relatively long time.
　　 The focus of his recent literature reading has been biased towards non-fullerene fields, but it will take some time to accumulate.
　　 Secondly, from the perspective of Teacher Wei.
　　 He just returned to China to set up a research group. In the early stage, he needs a lot of articles. You can't always use his research results in the U.S. as a facade.
　　 Teacher Wei is very eager for articles. Chen Wanqing used "ternary blends" and "ternary conjugated copolymers" to write articles before.
　　 He actually didn't like this result in his heart, but he finally compromised.
　　 In contrast to Xu Qiu's system, even if the experiment is entrusted to Chen Wanqing and Han Jiaying, the matter of writing the article in the end will still fall on his head.
　　 The elder sister's ability to write articles is a bit anxious, but the younger sister has not written an article yet.
　　 Besides, it’s not easy to assign a work this way, you can’t get the same for each one.
　　 Finally, from the perspective of Xu Qiu's personal development.
　　 He also needs articles, because the article is not only about his evaluation and awards during graduate school, but also about his future promotion.
　　 After all, the overall atmosphere of the domestic scientific research circle still values ​​the quantity and quality of articles.
　　 This method of assessing the ability of scientific research workers is relatively simple and rude, and there are certain problems. Taking into account the differences in different fields, it is actually not very objective to assess the level of scientific research.
　　 But just like the college entrance examination, there are many problems, but at this stage, there is no other effective means to replace it.
　　 In its essence, each person's ability level is not as quantifiable and quantifiable as in the game. The assessors are also mortals with the naked eye, and it is impossible to see how capable this person is at a glance.
　　Like the college entrance examination, you can only do one size fits all. First, you can roughly classify them by grades. You can go to the university after you enter the university.
　　 The scientific research circle is also similar. Everyone has different research fields. The same people do scientific research. The differences between different fields are very big.
　　 Do not judge the level of the article, it must be reviewed by experts in the same field.
　　 But every time we send three or five experts in the same industry, it is easier said than done.
　　 Because there are experts in the same field, a school usually has one or two people, and you have to make up three to five people. Most of them have to go to other schools and other provinces to transfer personnel. The time cost is too high.
　　 And the SCI journals are divided into sections and evaluated by the number and quality of articles, forming a quantitative standard that allows laymen to roughly distinguish a person's research level.
　　……
　　 Xu Qiu’s experimental data is being steadily supplemented, and almost one or two data can be obtained every day.
　　 On Friday afternoon, Han Jiaying spin-coated in the glove box.
　　 She picked up the coated substrate with tweezers and said to Xu Qiu:
　　 "Brother, I didn't paint well. This kind of thermal spin coating is really difficult to operate."
　　 "It's normal, let's redo one," Xu Qiu said calmly:
　　 "Even if I do it, it is not 100% successful, and there is about a 10% chance of failure."
　　 Indeed, the operation of true thermal spin coating should be the most difficult one in device preparation.
　　 Not only requires a very fast hand speed, but also ensures that during the operation, the pipette tip does not touch anything in the glove box, such as a solution bottle without a cap.
　　 Otherwise, the failure of the experiment is small, just redo one piece. If the effective layer solution contaminates the balance and the like, the problem will be serious.
　　 "Brother, or let's find Teacher Wei..." Han Jiaying said cautiously.
　　 Xu Qiu probably understands what she wants to say.
　　 Before, he had considered buying a microwave synthesizer for synthesis and a heated homogenizer for thermal spin coating.
　　 It seems that there is no need to buy a microwave synthesizer for the time being, but a heatable homogenizer is still necessary.
　　Because of true thermal spin coating, in addition to high requirements for experimental techniques, there are still other defects, such as the inability to ensure the consistency of spin coating conditions each time.
　　 20 microliters of solution heated to about 100 degrees Celsius, under normal temperature air, the temperature loss rate is very fast.
　　 is one second away, and the temperature may change by several degrees Celsius.
　　 Therefore, the repeatability of the data is much worse than the traditional normal temperature spraying method.
　　 Moreover, every time the spin-coated substrate ~EbookFREE.me~ has a big circle in the center, it does not look very beautiful.
　　 "I'm looking for an opportunity to talk to Teacher Wei and apply to buy a glue spreader with integrated heating system." Xu Qiu said.
　　 "Really? That's great." Han Jiaying said happily.
　　 "You continue to experiment, I'll check it out first." Xu Qiu said.
　　 "Hmm." Han Jiaying nodded.
　　……
　　 Xu Qiu returned to the desk and sat down.
　　 asked Teacher Wei to apply for funds to buy the equipment, or he would just bring a mouth and say, "Teacher, I want to buy XXX"
　　 Well, I feel like I'm going to be scolded back.
　　 Let's conduct research first and show him the preliminary results.
　　 how can I find it?
　　This kind of tens of thousands of instruments, it is definitely not reliable to find TB.
　　 Let’s search online first.
　　Enter the keyword, "heating glue spreader", there is only one company, and the other search results are all ordinary glue spreaders.
　　 It seems that not many people do this in China.
　　 Xu Qiu opened the company's website. The picture looked like an ordinary glue spreading machine, but the text description integrated the heating mode. Then look at the price.
　　1111111 yuan.
　　 This doesn't look very reliable, obviously it doesn't look like a sincere business.
　　 There are two contact methods under the website, one fixed phone number and one mobile phone number.
　　 Xu Qiu calls the landline first.
　　 However, no one answered.
　　 dialed again, but no one answered.
　　 Now Friday afternoon, weekdays, do they not go to work?
　　 Xu Qiu tried to dial the mobile number.
　　188……
　　 "Hello, the number you dialed is empty..."
　　 Yes, this company has closed down.
　　 is really unreliable.