I Have A Research Support System - Chapter 478

Upon arriving at the school, Xu Qiu ran to the Jiangwan campus first.

Through the simulation laboratory comparison, he debugged the Jiangwan evaporation equipment to the same state as the original Handan campus.

In this way, the processing conditions of the Handan campus can be directly used, which is convenient for experimenting later.

At the same time, Xu Qiu noticed that the triple row of “spin coating-storage reagents-spin coating” glove box had been spliced ​​by Magic Glove Box Company and placed in the 522 laboratory, probably thanks to Sun Wo.

However, the interior of the triple row glove box is still empty. After that, various instruments and reagents need to be transported in through the large transport cabin before they can be used normally.

After handling the glove box, Xu Qiu took Metro Line 10 directly from Xinjiang Bend City to the Magic City High-speed Railway Station to pick up Han Jiaying.

The two of them agreed to return to school two days in advance, and then two days later.

High Speed ​​Rail Station.

The school girl is not like Xu Qiu, who is light-packed and has only one schoolbag. She is carrying a very large trolley case and a black leather schoolbag on her back.

Because there were too many things, the two had to go back to the school dormitory and put down their things before they came out again.

They first went to the Bund for a stroll, ate dinner, took a cruise, and then went to the Sheshan Happy Valley to stay in a pre-booked hotel.

They are ready to take advantage of the last day of the holiday and indulge for a day.

After all, I haven’t seen each other for a month, so I don’t know how to win the newlyweds. Although I often video chat, it’s just images.

Express hotel.

The two carried out a study on “the influence of the frequency and amplitude of reciprocating motion on the secretion of dopamine in the body and the time when the content of dopamine reaches its peak”.

In order to verify the reliability of the conclusions, they also conducted repeated experiments.

Doing this research is more energy-consuming, more tiring than making devices in a glove box in summer.

Not long after, Han Jiaying was exhausted.

Xu Qiu leaned over and whispered in the ear of the school girl: “I’myourfather.”

The school girl responded in a dazed manner: “Hmm…”

“Huh?!” After a while, Han Jiaying reacted, waving her small fist and slamming at Xu Qiu: “Brother, you, bad guy…”

The school girl probably felt uncomfortable with her hands, and she moved her mouth. She opened her mouth and bit at Xu Qiu’s shoulder: “Woo…”

Unfortunately, Xu Qiu didn’t let her succeed, and quickly blocked her mouth.

“Well……”

The two began a repetitive experiment again.

Early the next morning, the two of them regained their energetic state. They were both young people, and they recovered relatively quickly.

After a simple breakfast, they went straight into Happy Valley.

The school girl is a senior undergraduate and can enjoy a 20% discount on ticket purchases, which is the ticket price of 160 soft sister coins.

Xu Qiu is now a graduate student, and on many occasions he is no longer considered a student, so he can only buy a full ticket with tears, requiring 200 soft sister coins.

There are very few people in Happy Valley today. After all, it is the 19th day of the first lunar month, and the Lantern Festival has passed. Most people will not pick this time to go to Happy Valley to play.

Therefore, there is basically no need to queue up.

For example, a big event like a roller coaster only needs to queue for 20 minutes. If it is a holiday with a lot of people, it may not be queued for an hour.

In the process of queuing, the two were not idle, discussing the next research direction.

Han Jiaying first said: “The work of PTQ1 has been invested. Next, I plan to continue to optimize the PTQ series of donor materials. However, there is only one reaction site on the molecule of PTQ1, which is the non-side of the six-membered ring of the Q unit. At that position of the chain, I want to introduce some groups at this position, such as methyl, fluorine, chlorine, etc.”

Xu Qiu recalled the molecular structure of PTQ1, nodded and said: “Yes, if you introduce halogen atoms such as fluorine and chlorine atoms, the synthesis may be more difficult. If methyl is introduced, it is relatively better. .”

“I think so too, so I plan to start with the introduction of methyl and name it PTQ2.” Han Jiaying paused and continued:

“In addition, I think we can also try to add some other concepts. After all, the efficiency of this PTQ system is not the top-notch. If only the materials are available, the work that comes out is relatively thin. Do you have any suggestions?”

“Hmm…” Xu Qiu thought for a moment and responded: “You can try non-halogenated solvents, starting with the most commonly used toluene, but for toluene, it is a pure selling concept. As a pioneer, it is better to do the work. More far-reaching, for example, can we use tetrahydrofuran, THF, a low-toxic non-halogen solvent as a processing solvent.”

“Scratch coating, large-size, flexible, and translucent devices can also be tried. Didn’t we buy the instruments from the Blue River, and now the laboratory has moved to Jiangwan. It’s much easier to do experiments. The squeegee machine should be used “Xu Qiu added:

“In addition, during the winter vacation, I read a lot of literature and found several high-quality donor materials developed by other research groups. I plan to use them. You need to synthesize them and optimize them further.”

“Okay, I’ll listen to you.” Today’s school girl is particularly well-behaved.

On the afternoon of February 20th, the research team officially started to work.

Because March 1st of this year happens to be Sunday, so the start time of this semester is March 7th, and there is still more than half a month before school starts.

On the first day of the project team, a group meeting will be held as usual, mainly to look forward to the next work.

In this group meeting, in addition to the official members of the research group, several undergraduates and the new Fan Wentang were all present, which is equivalent to all the members.

The perovskite team first reported that the tin-based two-dimensional perovskite system, Feifei Wu and Wo Sun had already written the first draft of the ACSEL review during the holiday.

Moreover, they also communicated with Wei Xingsi via email. After finishing the revision of the manuscript, they had already submitted it during the holidays, and the work efficiency was still quite high.

Next, the focus of the work of the perovskite team is to study the lead-tin mixed two-dimensional perovskite.

Wu Feifei’s strategy is to “walk on N legs”. She arranged several lead-tin mixed two-dimensional perovskite systems for Sun Wo to conduct simultaneous research.

At the same time, she also gave herself a piece of insurance: “Efficiency may not be able to be improved. If it is not, we can only report the data on the migration rate…”

Wei Xingsi naturally heard what Feifei Wu meant, and said noncommittal: “Try it first.”

This time, Sun Wo’s pressure was actually a little bit heavy, because the move of the laboratory and the redesign and transformation of the glove box were also caused by him to some extent.

If he still can’t get a good result after using the new glove box, then he has no good excuses to find, he can only say that it is his own problem.

Duan Yun did not report. He was holding a computer and operating at the group meeting, probably dealing with the affairs handed over to him by Warwick.

Tian Qing reported on the results received during the holiday, from the samples sent by Feng Shengdong from Sweden and Ronald from Finland.

In Feng Shengdong, Sweden, they tested the TAS for the two effective layers of the top battery and the bottom battery.

The results show that the charge recombination in the two effective layers is not serious, but no further conclusions have been drawn.

There is no way. TAS is originally testing a single effective layer film, not a battery device.

For traditional single-junction devices, it is easier to analyze with TAS because there is only one effective layer. However, it is really difficult to use TAS to test the current laminated devices.

At Ronald of Finland, they mainly analyzed the problem of internal interface recombination of laminated devices.

They compared the two single-junction devices with the final double-junction stacked device, and found that the total interface charge recombination in the stacked device was reduced compared to the original two single-junction devices.

If you want to get more in-depth conclusions, more systems are needed for research.

In contrast, Tian Qing believes that the next step should be to collaborate with Finnish Ronald to prepare laminated devices with different transport layer materials, and analyze the effects of transport layer and device structure on the recombination of the charge interface.

The story told is “how to design a laminated device to reduce the performance loss of the device caused by interface recombination, and then to obtain an efficient device”.

In this case, Swedish Feng Shengdong basically cannot cooperate.

Of course, this is also normal. You can’t cooperate but force cooperation.

Chen Wanqing brought some news from Blue River.

The number of the Blue River team has been further expanded. From a small team of a few people at the beginning, to a small team of nearly 30 people, it is also equipped with subdivisions such as personnel and finance.

In addition, after Blue River developed the second-generation squeegee machine, the first-generation trial zero machine based on all-printed electronic technology has now been completed.

This zero machine is expected to print and prepare a variety of electronic devices including sensors, chips, and solar cells in the future, but it is only a sample machine and does not have so many functions.

On the one hand, because the printing process is not mature enough, it needs continuous optimization;

On the other hand, there is also a lack of functional inks for printing, and ink is the core of all-printed electronic technology.

Therefore, Blue River decided to increase the research and development of functional inks.

At the same time, Blue River also approached teacher Fang Jia from Tongji University to conduct research on printed flexible light-emitting devices OLED.

It is said that he plans to lay out supercapacitors, microelectronic integrated circuits and so on.

Perhaps Blue River also discovered that it is not possible to put all eggs in the basket of organic photovoltaics. If the research field is spread out, the risks can be diversified.

Xu Qiu reported his thoughts on the next work:

“Designed and synthesized several Y series acceptor material derivatives such as Y11 and Y12, which are expected to achieve breakthroughs in device performance…”

“L2, L6, S1, these are donor materials developed by Zang Chaojun of Qingbei University, Lu Changjun of the Institute of Chemistry of the Chinese Academy of Sciences, and Li Dan of the National Center for Nano Science and Technology. I think we can also synthesize some for our own research. .”

Speaking of, since Xu Qiu started naming materials with initials on a large scale, other research groups have also started to follow up.

Probably people are also aware of the benefits of this naming.

On the one hand, it’s easier, and you don’t need a very long and hard-to-remember name;

On the other hand, this kind of naming is recognizable. As long as you see the letter logo in front, you can know which research group the material is.

“I plan to sort out the work on the previous Y series materials in the near future, and let Han Jiaying and Wu Shengnan help to optimize the donor material and the acceptor material respectively…”

Xu Qiu’s idea is that after he has put out the several articles he has compiled, the materials of L6-Cl and Y20 are almost optimized there, and they can be seamlessly connected, which is simply perfect.

Han Jiaying responded to Xu Qiu’s call and said that she would help synthesize materials such as L2, L6, S1, and their derivatives.

At the same time, Xuemei also proposed a synthetic route for PTQ2 materials, and intends to apply non-halogen solvents and scraping methods in this system.

During the winter vacation, Wu Shengnan had a discussion with Xu Qiu and wanted to leave the name of Y1.

In this way, the name of the Y5 material originally developed by the post-doctorate sister was changed to Y1, the names of Y6 and Y7 remained unchanged, and the name of the Y1-Y4 material originally developed by Xu Qiu was changed to Y2-Y5.

This is mainly to first report on a system that is not so efficient. For example, the system that Wu Shengnan chose is in this system. Neither the donor material nor the acceptor material is optimal, and the efficiency of the device is only a good book. Follow the vx public account [Book Friends Base Camp]. Pay attention now to receive cash red envelopes!

Xu Qiu didn’t have any comments. This is a common routine in water articles, and everyone is tacitly aware of each other.

He reported that ITIC was the same. The system used in the first AM was only 8% efficient.

If 8% is used as the benchmark system, then as long as the efficiency exceeds 8%, a good article can be published.

But if you report on the best system, for example, directly increase the efficiency to more than 12%, then it will be difficult to publish good articles for other systems that are not as efficient as 12%.

From a utilitarian point of view, the best system for direct reporting is at the expense of others and against oneself.

This is because it will not only smash your own job and increase the difficulty of publishing your own articles, but also increase the difficulty of publishing articles by other colleagues, which is equivalent to smashing the jobs of your peers.

So generally there is a big breakthrough, and everyone will hold back first to make the performance improvement process smoother.

Unless it can impact the work of the “Nature” big magazine or even the CNS, then it’s another matter.

If there is a chance to publish, I will definitely spare no effort to make an impact.

In addition, it is worth mentioning that Wu Shengnan’s operation of taking away the Y1 name actually took advantage of Xu Qiu.

After all, the Y series materials were originally developed by Xu Qiu, and now that Wu Shengnan wants to be on top, it is equivalent to grabbing Xu Qiu’s article.

The post-doctorate sister is an old researcher, and naturally she is aware of this, so she took the initiative to propose that this article she and Xu Qiu are the same.

This is what Xu Qiu deserves, so he didn’t shirk it, and just accepted it with laughter.

In the end, Wu Shengnan initially completed the writing of two articles during the winter vacation.

At present, these two works lack the data of the light source and the data of the third-party inspection of NIM. These two data can be completed in early March, and they can be released one after another.

Among them, the first one is the Y1 system, and it is planned to invest in AM.

Because of the “new system, 13% efficiency” as the highlight, coupled with Xu Qiu’s name and the bonus of Wei Xingsi’s research group, there is basically no problem with this article.

In another article, the postdoctoral sister merged Y6 and Y7 materials. The highest device efficiency in this work reached her plan to vote for a JACS.

In fact, under normal circumstances, her efficiency can break 14% of the system, you can also consider to hit the “Nature” Daizi magazine, after all, broke the current organic photovoltaic world record work.

Although the probability of winning the manuscript is not high, it may only be 20-30%, but at least there is a chance.

However, the post-doctorate sister did not do this, mainly because she knew that Xu Qiu had an efficient system close to 15%.

Under this circumstance, if she submits to the “Nature” Dazi Magazine here, the review cycle will last three months. If it is rejected, it may not be stable if she submits to AM or JACS at that time.

Because at that time, Xu Qiu’s more efficient system may have been published, and the 14% she has on hand has no advantage at all.

To be safe, it’s not bad to get a JACS.

Mo Wenlin reported the next experiment plan, mainly about the Y series material laminated device, this research direction was given to her by Xu Qiu.

Because Xu Qiu had a hunch that to make organic photovoltaic devices a further breakthrough in efficiency, it might be necessary to combine the two big killers of Y series materials and laminated devices.

Although he tried this idea before and failed, but at that time, the factors of failure were many, including unfamiliarity with these two fields, coupled with limited choice of materials, and so on.

And now, whether it is the development of Y series materials or the fabrication of laminated devices, Xu Qiu has rich experience.

Moreover, the material library in the field of organic photovoltaics has also been deepened a lot by peers, and if you try again, you may have different results.

Several undergraduates attended the group meeting, but did not report.

Fan Wentang still reports on documents, which happened to be part of the documents that Xu Qiu saw during his winter vacation.

Although Fan Wentang’s documentary report was of little benefit to Xu Qiu, it can be seen that the other party has made more adequate preparations.

It seems that Fan Wentang was not completely idle during the winter vacation. It may be that he took the initiative to ask for documents from Teacher Wei.

Xu Qiu originally thought that he was the only one who worked harder during the winter vacation, but he didn’t expect that the other small partners in the research group would be very hardworking one by one.

It seems that only Tian Qing and the four undergraduates are paddling…

However, after all, it is Tian Qing and the undergraduates, and we can’t ask them too much.

After the group meeting, Xu Qiu, Wu Shengnan, Wu Feifei and others were summoned by Wei Xingsi to the office, mainly to exchange information about key projects and the Jieqing Fund project declaration.

The application time is in early March, and the project review time is generally about half a year, so the results are almost released in late August.

This matter has little to do with Xu Qiu. He is mainly responsible for the general control of the writing of the book. Now on the eve of the declaration, it is mainly the work of language polishing and checking for missing vacancies.

Leaving Teacher Wei’s office, Xu Qiu found two of his undergraduates, Xu Xinjie and Yin Houlang, and asked them to the small conference room on the third floor.

Xu Qiu planned to have a chat with them and see if he could add some burden to them.

After all, to get the 18% efficiency system explored in the simulation laboratory, there are still many steps of optimization work to go, and it may take a lot of time to rely on the two seniors and post-doctorate seniors.

Xu Xinjie and Yin Houlang looked dumbfounded. They didn’t know what Xu Qiu asked them for, but they didn’t ask much, and followed Xu Qiu obediently to the meeting room on the third floor.

Xu Qiu first secretly checked the proficiency of the two experimental operations.

It was found that Yin Houlang’s proficiency in organic synthesis rose relatively quickly, while Xu Xinjie’s proficiency in device preparation rose relatively quickly, which should be mainly related to their division of labor.

However, the most proficient experimental skills of the two people were both around Tier 4 and did not reach Tier 5.

Of course, this is also normal.

Xu Qiu also spent a year at the beginning, relying on the simulation laboratory system, to brush most of the experimental skills to the fifth level.

For normal master’s students, it is already very good to be able to upgrade their main experimental skills to level five when they graduate.

Interestingly speaking, the current situation is that most graduate students have finally reached the fifth level of proficiency when they graduate, and are familiar with the entire field. As a result, they cannot find a job in the corresponding field after graduation, so they have to be forced to change careers. , The professional knowledge learned is almost never used again.

Just like the college entrance examination, most people in the third year of high school, the knowledge reserve will reach its peak, and then it will slowly decay.

The attenuation is not completely accurate, it can be said to be the attenuation of real-time memory.

If you look at it from another angle, a lot of knowledge seems to be forgotten, but it is not completely forgotten. Instead, it is transformed into the subconscious and stored. If it is needed when it is needed, there is a high probability that it can be remembered.

Even if you can’t remember it, you can quickly grasp it if you spend a little time looking up the information. After all, it is the knowledge that has been learned once.

This may also be the meaning of learning. Even if you forget it temporarily, you can find it again at a relatively small cost when you need it later.

Xu Qiu looked at Xu Xinjie and Yin Houlang, and asked, “Do you know why I am looking for you?”

The two of them were a little cautious, and both shook their heads: “I don’t know.”

“Yes, you all participated in the group meeting today. The two directions I proposed at the group meeting are the development of new donor materials, and the other is the synthesis of new Y series acceptor materials. I want you to Go and help a bunch of Wu Shengnan and Han Jiaying. It’s best…” Xu Qiu paused and continued: “You can devote more time to scientific research every week.”

Yin Houlang’s eyes lit up and immediately said: “I have no problem, I promise to complete the task… Am I still following Wu Shengnan’s senior sister?”

“Well, yes.” Xu Qiu responded, then turned to look at Xu Xinjie.

Xu Xinjie considered it for a moment and said that there is no problem.

Xu Qiu nodded in satisfaction. The human issue has been resolved, and I hope they can grow up quickly and become their own right-hand man as soon as possible.