Chapter 110: It's her

　　 Monday morning.
　　 The new school brothers and sisters do not participate in the group meeting, so the group meeting members are still Teacher Wei and the five-member group in the laboratory.
　　Chen Wanqing was the first to report. Her latest work, on the perovskite benchmark system for ammonium chloride additives, has almost supplemented the data and can write a handwritten article.
　　 After discussing with Teacher Wei, I plan to vote for Chem.Mater. with an impact factor of about 10, which is considered a good journal under RSC.
　　 Tian Haru's report was quite satisfactory, and there were no bright experimental results.
　　 Duan Yun’s equipment is still not set up, so I would like to mention Mr. Wei’s remarks package again.
　　 But he patted his chest and said, "I will see the dawn of dawn soon."
　　 In the past few weeks, Duan Yun has attracted a lot of attention from Teacher Wei and successfully transferred his hatred.
Before 　　, Chen Wanqing was the best dish, so she was always paid extra attention by Teacher Wei, which caused her to always be trembling.
　　 Now that Teacher Wei has shifted her target, she is the happiest.
　　 Chen Wanqing’s report is about the device performance of her own system at the front, and the basic characterization of Xu Qiu’s material at the back.
　　 Finally, it was Xu Qiu's turn.
　　" Last week, I mainly went to Zhangjiang for synthesis. Only two batches of devices were made. The polymer material with good performance is P2FBT4T-2OD.
　　 The first batch of devices has the highest efficiency of 8.88%, and the second batch has increased to 9.23%.
　　 I plan to do another synthesis this week, mainly to adjust the reaction time of the polymerization reaction. "
　　 "9.2%, not bad, continue to optimize, hurry up." Wei Xing thought:
　　 "Next week will be National Day. We will be on holiday as usual. We will meet in the morning on the 1st, clean the laboratory in the afternoon, and come back in the afternoon on the 7th."
　　 Wei Xingsi considered for a moment and continued:
　　"Xu Qiu's job is rather special, so I still have to hurry up.
　　 Let’s do this, Tian Qing, you helped him measure CELIV and TOF this week, and study the mechanics of charge transport.
　　Chen Wanqing, please take him to make up the other characterizations. Except for the light source data, which can be measured after the festival, the other data should be tested this week. "
　　 "Do you understand?" Wei Xingsi raised his voice slightly.
　　 "Understood." The three replied.
　　……
After the group meeting, everyone returned to 216.
　　 "I still try to finish the other data measurement this week, can the measurement be completed?"
　　 Chen Wanqing muttered, while operating the computer, making an appointment for testing on the instrument sharing platform of the Department of Materials and Chemistry.
　　 There are still a lot of characterization tests left, and it is obvious that the test cannot be completed in a week.
　　 "How do you say?" Chen Wanqing discussed with Xu Qiu.
　　 "Or, before the holiday, first test the characterization that can be tested in the material department?" Xu Qiu asked.
　　 "This proposal is not bad, at least it is more reliable than what Teacher Wei said," Chen Wanqing said:
　　"Materials department will give priority to students in the materials department, so it is easier to make an appointment.
　　 You are going to Zhangjiang to do synthesis from Monday to Wednesday, then I will make an appointment for the test center from Wednesday to Friday. "
　　 "Okay." Xu Qiu nodded.
　　 The appointment went smoothly, all the equipment in the department arrived, including:
　　 Differential Scanning Calorimetry DSC, Thermogravimetric Analysis TGA, Atomic Force Microscope AFM, Gel Chromatography GPC.
　　Others were tested in the Department of Chemistry. Chen Wanqing made an appointment for them after the National Day, including:
　　 Transmission electron microscope TEM, nuclear magnetic resonance NMR hydrogen spectrum and carbon spectrum, element analyzer.
　　 In-school tests are more convenient anyway.
　　 The most troublesome test and characterization is undoubtedly the magic light source test.
　　 Not only the test time is arranged by the other party, but the number of computer hours for each research group is still very limited.
　　 Each test consumes the machine-time margin corresponding to the test time, which is generally an integer multiple of 12 hours. When the machine crashes, the margin is 0, and no new test can be arranged.
　　When you want to get a light source, you need to apply for the light source project twice a year, and you can apply once in March and September each year.
　　 is a bit similar to horizontal projects, such as natural science fund applications, but the requirements are not so high.
　　 If the application is approved, the light source will allocate 12, 24, 48 or more hours of machine time to you.
　　 This is a guarantee. In the previous two years, Teacher Wei applied for a total of three times, and passed each time, and was given 24 hours of computer time, so he can test almost four times a year.
　　 The project applied for in September this year is still under review.
　　 In addition, Magic City Light Source also has bonus time.
　　 After the researchers publish an article, if the results of the light source test are involved, and they thank Mordu Light Source in the acknowledgment section of the paper, they can apply for the bonus time.
　　 can get 12, 24 hours or even more machine hours, generally SCI zone 2 is 12 hours, SCI zone 1 is 24 hours.
　　 If it is a more heavyweight journal, such as the big journal of Nature, it will reward more.
　　 Of course, people who can publish such periodicals basically don’t run out of time.
　　……
　　 After discussing the experiment plan with the senior sister, Xu Qiu was not in a hurry to go to Zhang Jiang's laboratory.
"Because the optimal reaction time for polymerization of this batch of materials is 10 hours.
　　 It is already 11 o'clock in the morning, even if you leave for Zhangjiang immediately and do experiments non-stop, you will have to respond at three or four in the afternoon.
　　 It will be one or two o'clock in the morning to shut down the reaction, plus two hours for the subsequent capping reaction, and it will be four o'clock in the morning after all.
　　 It would be better to respond at night and deal with it the next morning.
　　 Although Xu Qiu tried to do the experiment, it was not enough to do the experiment overnight.
　　 In the afternoon, he and his senior sister used the space charge limited current method ~EbookFREE.me~ to test the mobility of electrons and holes in the effective layer.
　　This method also uses battery devices, but the device structure is different from the normal structure.
　　 The devices used in SCLC need to adjust the energy level structure of the transport layer, and the battery is designed to pass only electrons or only holes.
　　 Then, provide a linear sweep voltage across the device, such as -2 to 7 volts, to get the J-V curve.
　　 Through fitting calculation, the mobility of electrons and holes in the current effective layer can be calculated separately.
　　 Actually, Chen Wanqing doesn't know much about this method.
　　 However, there are ready-made fitting formulas and device structures in the literature that can be used for reference. Testing and data analysis have not encountered any problems.
　　……
　　 After dinner, Xu Qiu took the school bus to Zhang Jiang laboratory.
　　 More than ten o'clock in the evening, I cast a good response.
　　 10 hours of reaction time, the reaction was stopped at 8 o'clock the next morning.
　　 After finishing the experiment, he returned to A501, read the literature, and tried to find a way to improve the performance of the device.
　　 Unfortunately, I did not find it.
　　 This system was developed by him for the first time. It is considered a pioneer in a small field. Most of the other people's experience is not available and can only be explored by himself.
　　 Where is the road?
　　……
　　 The next day, Xu Qiu shut down the reaction, capped and processed it.
　　 While he was seriously experimenting, he suddenly heard footsteps coming from the door of the laboratory behind him.
　　 He thought to himself that there seemed to be only Teacher Wei's laboratory on this floor, and the other rooms were empty. Usually, only the cleaning aunty appeared.
　　 Could it be that Auntie Cleaning came in?
　　 Looking back, it was her.
　　 Why is she here?