Chapter 248: What world record?

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At about five o'clock in the afternoon, Caiyi216, Xu Qiu and other four people were sitting around their desks, and Sun Wo was testing devices in the laboratory inside.
The screen of Wu Feifei's mobile phone suddenly turned on. She glanced at the mobile phone, her expression changed slightly, and then said to everyone: "Teacher Wei has come to the news. Ask us'how'?"
After a pause, she added: "Everyone, summarize today's work and report it to me, Xu Qiu, help me ask the two of Zhang Jiang."
"No need to ask, I know what the two of them are doing," Xu Qiu answered calmly and said: "Han Jiaying is synthesizing her 3D-PDI molecule, and at the same time testing whether the newly arrived microwave reactor is useful, Chen Wanqing is synthesizing her The ADA molecules, CH1 and CH2, today are the post-processing of the last reaction."
"Okay, I took it down," Feifei Wu nodded and asked, "What about you?"
"Xu Qiu tested the TEM in the morning and the CV method in the afternoon to test the energy level structure, so let's write it." Xu Qiu thought for a while.
Next, Wu Feifei counted the work of several other people, compiled a long paragraph of text, confirmed that there were no omissions, and then sent it to Teacher Wei.
Soon, her mobile phone screen lit up again, Xu Qiu cast her eyes, and saw that Teacher Wei returned an emoticon package [received], it was two large three-dimensional characters rotating, and there was a red flower next to it. Embellishment.
"By the way, is it morning on Teacher Wei?" Xu Qiu asked casually.
"The magic city is almost 7 hours faster than Sweden, so it's five o'clock in the afternoon here, and it's almost..." Chen Wanqing mentally calculated for two seconds, "10 o'clock in the morning."
"That's it." Xu Qiu nodded. His science is good, but liberal arts are not good enough. When senior year liberal arts are not divided into subjects, the average score of science is about 90, and the average score of liberal arts is about 60. Of course, he is also in liberal arts class with him. The reason for writing science homework is related.
Everyone chatted for a while, Wu Feifei walked into the laboratory to discuss with Sun Wo, and could vaguely hear:
"How efficient are these tin-based devices?"
"It's 1%, and I don't know how they did it in the literature. The experimental procedures are exactly the same."
"Maybe there are some key steps hidden, and we can't completely refer to the literature. We have to find the conditions ourselves to optimize."
"Okay, next time I will try the hot spin coating method."
Tian Qing and Duan Yun began to pack their schoolbags and plan to leave early. Generally, after Teacher Wei checks their posts, there is a high probability that they will not be looked for again, not to mention that Teacher Wei is now abroad.
Xu Qiu was not in a hurry to leave. He still had to wait for Han Jiaying to return from Zhang Jiang. Before receiving news, they were riding the five o'clock school bus, but this time period happened to be the evening peak, and it was estimated that it would be six o'clock in the school.
He originally planned to start the new article today and sort out the context first.
As a result, I just created a WORD file to start work, and found a problem-there is no submission history in the group, which means that there is no corresponding template.
He had to manually create a template based on the commonly used Wiley template and contrast the articles published by other researchers on NC.
While Xu Qiu was making the template, the others left one after another, and the last person to leave was Sun Wo.
It wasn't until early six o'clock that Xu Qiu finished the template. At this time, he was the only one left in the office. He glanced at the time and muttered: "They should be here soon."
As soon as the voice fell, Han Jiaying and Chen Wanqing appeared at the door of the office together, "Brother, we are back~"
The school girl walked to Xu Qiu's side and sat down. The school girl took out a garbage bag from her schoolbag and walked to the inner laboratory.
Xu Qiu grabbed the little hand of the school girl and asked with concern, "How is the effect of the microwave reactor?"
"The effect is good," Han Jiaying said excitedly: "Using a microwave reactor, under the same reaction conditions, the 6-hour yield is close to 70%, and the 24-hour yield of the previous control group is only 40%."
"But..." The school girl pursed her mouth, and said, "Today's time is not enough, and the product has not been completely processed."
"The microwave reactor is easy to use. The product can be left and processed slowly." Xu Qiu first comforted, and then said: "Next time you can try the effects of other microwave reactors. In theory, most For synthesis reactions, microwave heating can be used to increase the reaction rate, especially those that require 24 hours or even 48 hours, which can save a lot of time."
"Yeah," Han Jiaying nodded in agreement, "and I think some reactions with low yields can also be tested with microwave reactions. Perhaps it can greatly increase the yield like this one."
"This is also a good idea." Xu Qiu admired. The school girl has learned to learn from one another, which is a good thing.
At this time, Chen Wanqing came out of the inner laboratory and said to Xu Qiu: "Finally, CH1 and CH2 have been synthesized. This time there is about 50 mg of product. I put it in my lock box in the glove box."
Xu Qiu instantly understood the meaning of the senior sister's words, and responded, "Okay, if I make devices on Sunday, I will help you with a batch of devices."
"Senior sister, do you have dinner together?" Han Jiaying suggested.
Chen Wanqing smiled and waved her hand, carrying her schoolbag, "I won't bother you, just go ahead."
...
After dinner, Xu Qiu sent Han Jiaying back and returned to the dormitory alone. After entering the door and seeing that two of his roommates were not there, he turned off the light and lay down on the bed.
"I don't know if there are any surprises?" Xu Qiu muttered, and then entered the simulation laboratory II.
At this time, the simulation experiment personnel have stopped working, which means that six solvent systems have been newly arranged in the morning and all preliminary exploration work has been completed.
Xu Qiu checked the data saved in the system, and among the six new solvent systems, the chloroform-dichlorobenzene system stood out.
The dichlorobenzene here stands for o-dichlorobenzene o-DCB. It has two brothers, m-dichlorobenzene and p-dichlorobenzene. Among them, the ortho meta-pair refers to the two chlorines on the benzene ring. The relative positions of, are separated by 0, 1, and 2 carbon atoms.
Dichlorobenzene is also a common processing solvent used in the field of organic photovoltaics. However, due to its relatively high boiling point, it must be used with high-concentration solutions during spin coating, which is a waste of materials. Xu Qiu only tried the traditional P3HT system at the beginning. , Used dichlorobenzene as a processing solvent, and then mainly used chloroform and chlorobenzene.
The final result, based on the mixed solvent of chloroform and dichlorobenzene, Xu Qiu and Xuemei's two best systems have the highest efficiency of 8.02% and 7.15% respectively.
"Finally broke 8%!"
"Unexpectedly, using dichlorobenzene as a solvent additive would be so powerful."
"Moreover, there is hope for further improvement, after all, it was only preliminary exploration before."
Xu Qiu felt excited, and quickly formulated a new set of experimental conditions based on the existing data, and handed them to the simulation experimenters for testing.
At the same time, he took the CH1 and CH2 materials that he had just copied from the school sister, and arranged the device performance exploration.
After the arrangements were made, he carefully looked at the data again and found that not all solvent additives were helpful to the improvement of device performance.
For example, in another system with chloronaphthalene added, the performance of the device decreased, which is not as good as the pure chloroform system without additives.
Finally, Xu Qiu read the data of the chloroform-dichlorobenzene system again, looked at the "8" for a while, and then left the simulation laboratory contentedly.
"World record!" Xu Qiu yelled in excitement.
"What world record?" In the darkness, a voice suddenly sounded faintly.
Xu Qiu was frightened. After he came out, he saw the dark lights around him. He thought there was no one. After carefully recalling the sound just now, he probed: "Tao Yan?"
"It's me," Tao Yan said weakly, "I participated in a quarter horse long-distance race in the afternoon, and went back to the laboratory to work until more than six o'clock. I was exhausted today."
"Department, school, or club activities?" Xu Qiu asked. He instantly replenished the picture. Tao Yan should have planned to rest for a while when he came back. When he saw him lying on the bed, he simply didn't turn on the light.
"The activities organized by the Department of Materials Science and Technology Association usually involve sophomores and juniors. This time, if we don’t get enough people, I will be bred." Tao Yan changed his words, "Don’t talk about me. I just heard what you said about the world record."
"Oh," Xu Qiu said calmly: "Recently, there has been a little breakthrough in work, breaking the world record in the field of PDI non-fullerene receptors."
"You are also called a small breakthrough? It broke the world record!" Tao Yan exclaimed, and said after a while: "It's your kid NB. There are four or five silent articles posted."
"Almost, four have been published, and one is on the way." Xu Qiu responded.
"Awesome. I don't know when I can post an article. It's hard to read the literature now." After a pause, Tao Yan said suddenly: "By the way, you still remember the senior sister Zhao Anqi who graduated from our department last year. "
"I have an impression, what's the matter?" Xu Qiu asked curiously. He still heard about Zhao Anqi. After all, he was from the same school and department, and the other party was just one level higher than him.
When Zhao Anqi was about to graduate, she suddenly became popular on the Internet. The characters were probably "students of the Magic City University", "Mensah Member", "5 SCI works for undergraduates", and finally graduated to Harvard University.
However, Xu Qiu thinks that she can get out of the circle mainly because of her appearance. If the people are crooked, it will be useless to give her ten SCI articles.
After all, in academic circles, there are many who can issue SCI, but not many who can issue SCI and are beautiful, and in terms of public opinion out of the circle, girls are inherently superior to boys.
Xu Qiu prides himself on Yushu Linfeng, and there are many articles, including the review on the road, and now there are five SCIs immediately, and the articles published are not parallel imports. AM, AEM, ACSEnergyLetter are all very high-quality SCI, but they are also I haven't seen any reports.
Having said that, the undergraduates who can publish five articles and one SCI are indeed rare.
"I think you guys are a good match. Why don't you fry a CP with her?" Tao Yan suggested, "You might be a ‘scientific male god’ tomorrow after the heat."
Xu Qiu scolded with a smile: "Fry a hammer, or you should switch to an entertainment reporter after graduation, let alone I have a girl."
This time it was Tao Yan's turn to be surprised: "Ah? I don't know what happened when."
"A few days ago, the school girl in our research group, Han Jiaying." Xu Qiu said, anyway, the group has been made public, so there is no need to hide it from roommates, besides, he and Tao Yan's laboratory are both in the same class~www .EbookFREE.me~ Sooner or later he will find out.
"It turned out to be her," Tao Yan was stunned. "When I first met you two, I thought you had a problem. I didn't expect that Xu Qiu, with big eyebrows and big eyes, would actually eat grass on the edge of the nest."
"Haha," Xu Qiu hit back unwillingly: "You still have the face to say me, how much harm have you done to the girl in our material department?"
"You can't talk nonsense," Tao Yan said in an innocent tone: "All I'm looking for are good guys from outside the department."
"By the way, how did you stop recently." Xu Qiu answered casually.
"Wait for someone destined." Tao Yan pretended to be pious.
"speak English."
"Let’s talk slowly when you get promoted to graduate school. The graduation season is not convenient."
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