Chapter 117: Sister's new idea

　　 After preparing the sample, start the light absorption spectrum test.
　　 This time it was Chen Wanqing's turn to operate. Xu Qiu next to Han Jiaying introduced the operation steps and instrument principles.
　　……
　　 The test is completed, eight samples, four conditions, good repeatability.
　　 After comparing the light absorption spectra of the four samples, Chen Wanqing said:
　　"From the test results, the higher the temperature during spin coating, the more the light absorption curve shifts to shorter wavelengths. Other than that, there is not much difference in the shape of the curve."
　　 "Yes," Xu Qiu said:
　　" 120 degrees Celsius true thermal spin coating, the absorption band edge is at 720 nanometers, and 90 degrees Celsius pseudo thermal spin coating, the absorption band edge is 750 nanometers.
　　 It is generally believed that the higher the degree of crystallinity of the same material, the smaller the forbidden band width, and the more the absorption band edge shifts to the long wavelength. In other words, the previous idea is correct. "
　　 "I have a new idea." Chen Wanqing suddenly excited.
　　 "Let's listen." Xu Qiu was quite curious about the new ideas of the senior sister.
　　 "Other polymer donor materials previously reported, but there is no such obvious phenomenon of light absorption band edge shift," Chen Wanqing said:
　　"Like PTB7-TH, although the crystallinity is not weak, there is no similar experimental phenomenon.
　　 If we report this phenomenon, it is estimated that a small article should be fine. "
　　 "Can you post articles too?" Xu Qiu said.
　　 "If your system efficiency is only 5% or 6%, you will definitely not be able to publish articles, but now the efficiency is close to 10%, then the result will naturally be different." Chen Wanqing said:
　　 "If you dig out a little bit of scraps from it, you can write an article. This can be regarded as the advantage of being a pioneer in the field."
　　 "As the saying goes, if one person succeeds, the dog and the chicken ascend to heaven?"
　　 As soon as Xu Qiu's words were spoken, it seemed that something was wrong.
　　 "He said the two of us are chickens and dogs." Han Jiaying reacted quickly.
　　 "I just make an analogy, it doesn't mean that."
　　 Xu Qiu hurriedly waved his hand to explain, and then quickly changed the subject:
　　 "I think it is possible to systematically study the film of donor materials and the light absorption properties of the solution at a series of temperatures.
　　The temperature range can also be relaxed, such as from 20 to 120 degrees Celsius, with a gradient of 10 degrees Celsius. "
　　 Hearing his proposal, Chen Wanqing thought for a moment and said:
　　 "The solution you mentioned is feasible, but even if this work is to be done, it will have to wait for your article to be published."
　　 Xu Qiu nodded, he believed it, if he reversed the publication order of the two articles.
　　 is like selling the game first and selling the DLC, and then selling the game itself, most other researchers will not buy it.
　　 "Senior sister's experimental idea, every time she rushed to the second district, she almost became the second district master." Xu Qiu said:
　　 "Can you be harder and post a section of the article."
　　 "Isn't that my strength is not enough, I can only fight in quantity. I have to meet the graduation requirements before I can talk about other things." Chen Wanqing said.
　　……
　　 There are no more experiments in the evening, and Xu Qiu intends to leave.
　　 Seeing this, Han Jiaying also began to pack her schoolbags.
　　 Finally, the two walked out 216 together.
　　 didn't take a few steps, and met Tao Yan in the corridor. Seeing his appearance, he was planning to go back to bed.
　　His research group is a large group, with two laboratories and two offices in Caiyi.
　　 Tao Yan is usually in the office at 222 on the second floor, not far from Xu Qiu's 216, and the two can occasionally meet in the corridor.
　　 After he saw Xu Qiu and Han Jiaying walking side by side, he winked at Xu Qiu, and then quickly left.
　　 "This is my roommate, he is like this, he hasn't been a positive person all day." Xu Qiu said:
　　 "He probably misunderstood something."
"Ok……"
　　 went downstairs and could see the taillights of the battery car not far away.
　　 If nothing happens, it should be Tao Yan's car.
　　 Tao Yan is also a native of Magic City. Before he graduated, his family didn't buy him a four-wheeled car. He usually uses a battery car to travel.
　　 Xu Qiu searched for shared bicycles downstairs, but only found one.
　　 If it were normal, he would just scan the code and ride away, but now he is not ashamed to grab the car with his school girl.
　　 "Brother, please ride, I can't ride a bike." Han Jiaying said actively.
　　 "This..." Xu Qiu thought for a while and said:
　　 "Let’s walk together."
　　He simply stopped riding his bike, anyway, it was only 20 minutes away.
　　The Handan campus is the main campus of Modu Comprehensive University. It has a large area and is divided into several areas, the headquarters, the south, the north and the east.
　　 The first floor of materials is in the headquarters, the dormitory for undergraduates in the department of materials is in the south, and the dormitory for graduate students is in the north.
　　 There is no direct connection between the headquarters and the southern district. You need to leave the school gate and walk along the street for about one kilometer.
　　The point is that there are no street lights on that road.
　　 Moreover, it is said that the law and order were not very good in the past few years, and occasionally student mobile phones were robbed.
　　 Although there have been few reports of similar incidents in recent years, Xu Qiu is still worried about the school girl going back alone.
　　 It would be nice if the shared bike had a back seat.
　　 It's not a pity. You can't put Han Jiaying in the front basket.
　　 The two talked as they walked, mainly Han Jiaying was asking questions and Xu Qiu was answering, and the topic revolved around Xu Qiu's scientific research experience.
　　 After listening, Han Jiaying said with emotion:
　　 "Senior brother is so amazing, I have published one article in less than a year, and I will post another AM soon."
　　 "Where, I have posted one article now, and the other one is under review. The work is not completed yet." Xu Qiuqian said.
　　 Although the reaction of the school girl is a bit exaggerated and has a certain element of performance, this feeling of being touted is still very comfortable.
　　 sent Han Jiaying back to the girls' dormitory downstairs, and they separated.
　　The dormitory building for boys and girls in the Department of Materials is not in the same building, so it is normal operation.
　　Some majors share the same building for men and women, but on different floors.
　　 Xu Qiu didn't think that the kind of mixed accommodation is a welfare.
　　 Because I think about it, I feel that the building rules will be very strict, and it will be more embarrassing to see it everyday. UU reading www.uukānshu.com is estimated to be more convenient for couples with the same professional.
　　……
　　 went back to the bedroom, and as soon as he walked in, Tao Yan jumped up to him and said:
　　 "Xu Qiu, you have changed!
　　 You actually pressed on the road with another girl. I didn’t see you like that before!
　　 Tell me honestly, who is she! "
　　 Ren Bin pricked his ears when he heard the gossip.
　　 "The new school girl in the laboratory, what do you think about this day?"
　　 Xu Qiu saw their disbelief and explained:
　　 "It was not safe for her to go back to the bedroom alone at night, so I sent her back."
　　 "Worry about the safety of school girls, you are really sweet."
　　 "Oh -" Re-emin Bin also started to booze.
　　 got it, the more you trace it, the darker it gets.
　　 Let's stop this topic.
　　……
　　 After washing and washing, Xu Qiu lay on the bed and entered the simulation laboratory, intending to optimize the performance of the device by the method of real thermal spin coating.
　　 The result this time is critical. Whether the efficiency can reach 10% is a major watershed.
　　The solution is readily available, P2FBT4T-2OD:PC[70]BM, chlorobenzene solvent.
　　 He set four temperatures of 90, 100, 110, and 120 degrees Celsius, and used two thermal coating methods to spin-coat two pieces of each condition.
　　Spin coating zinc oxide.
　　 Spin coating effective layer.
　　 In the simulation laboratory, the speed is 0.25 times, the operating pressure drops sharply, and there is no error.
　　 vapor deposition and finish.
　　 The shiny silver substrate is filled with petri dishes.
　　 Xu Qiu is an atheist, but before the test he still bowed to the void:
　　 "No" God, please light up my device.