I Have a Research Support System

Chapter 484 Chen Wanqing and Duan Yun's Graduation Preparations (Subscribe)

On March 21, Monday, group meeting.

In the past two weeks, because the experimental resources of the research group have been allocated to the organic photovoltaic team first, the number of devices prepared by the perovskite team is relatively small.

Wu Feifei led Sun Wo, Yu Ya, and Deng Hu to make only two batches of devices. As a result, based on the two-dimensional lead-tin mixed perovskite system, the efficiency increased from the previous 6% to 6.6%.

The efficiency value is quite auspicious, but the truth is a bit low, and it is still difficult to select for a good journal.

However, although the perovskite team cannot make devices, now perovskite also has a separate spin-coating glove box, and it is still possible to do basic characterization tests.

Therefore, during this period of time, Wu Feifei and the others have already supplemented the various characterization data in the two-dimensional perovskite system based on 75% lead and 25% tin.

Next, they plan to make a few more batches of devices to see if the efficiency can be further improved.

If it can be improved, there is still a chance to publish a better article; if it cannot continue to improve, it can only sort out the article according to the current experimental results, tell a good story, and then submit to ACSAMI or the like The second district periodical.

Chen Wanqing and Duan Yun, they have recently spent significantly more time in the research team's office.

Because they are busy with graduation, including submitting thesis, waiting for thesis review, preparing for the defense and so on.

Graduating from graduate school is also a problem that Xu Qiu will encounter in the future, so he took the time to find out more about the situation with his senior sister.

It turned out that the last semester of graduate students before graduation was basically full of schedules.

It's not that you have to be busy at all times, but there will be some time nodes, and the corresponding tasks must be completed within the specified time. The specific timetable is:

"Before March 30, complete the maintenance and confirmation of personal basic information and the operation of uploading papers, and upload the blind review version of the paper."

It is more important to maintain basic personal information. If the information is wrong, such as filling in the wrong ID number, it will affect the future receipt of graduation and degree certificates.

In addition, the thesis must be submitted before the end of March. If you start writing the thesis in the last semester of the third year of research, in terms of time, there is a high probability that it will be too late.

Therefore, it is generally necessary to spare a year to deal with graduation matters.

In other words, the time for graduate students to really devote themselves to scientific research is only the second year of research.

At the beginning of the first year of research, one needs to be familiar with the laboratory and the research field, and at the end of the third year of research, one needs to find a job and write a thesis.

"Before April 4, the supervisor will complete the work of reviewing papers online."

Because Wei Xingsi and Xu Qiu will go to the beautiful country to attend the MRS meeting in April, so the senior sisters must settle these matters before Wei Xingsi leaves.

Otherwise, Teacher Wei will be in the beautiful country at that time, and it will be inconvenient to communicate. In case of an emergency, he may not be able to deal with it in time.

"Before April 5, the departments will conduct a similarity test based on the uploaded blind-reviewed papers. If the full text of the papers removes the citation copy ratio of more than 10%, it will not enter the review process."

Xu Qiu found that postgraduates had much higher requirements for plagiarism checks.

The repetition rate is no more than 30% at the undergraduate level, and no more than 10% at the postgraduate level.

Of course, if the text is coded word by word by yourself, or you translate your own published English SCI papers, you basically don’t need to worry about failing the plagiarism check.

In fact, the school gives a 10% repetition rate, which is relatively benevolent.

If the thesis is completely written by yourself, it is very difficult for the repetition rate to exceed 5%.

For example, when Xu Qiu graduated, he wrote an undergraduate thesis equivalent to a doctoral dissertation, completely translating his own published work, without referring to Chinese literature, and the repetition rate was only 1.2%.

"Before April 10, send the papers to review experts for review. All doctoral students will be blindly reviewed, and some masters of science degrees will be selected for blind review, and there is no need to send review experts."

Now the school has more and more stringent requirements for graduate students to graduate.

It is said that in the past, part of the doctoral students were blindly judged, and all master's students were judged openly.

Now, all doctoral students are blindly reviewed, and some master students are blindly reviewed. Every year, some graduation thesis of graduates are randomly checked. Once academic misconduct such as plagiarism is found, the degree will be revoked.

Xu Qiu estimated that there is a high probability that it will be more stringent in the future. Maybe all master and doctoral students will be blindly reviewed, and the proportion of random inspections will be increased. Even undergraduate graduation thesis may be subject to blind review and random inspection.

In fact, from the point of view of the review committee members, there is not much difference in their energy regardless of whether the papers are reviewed openly or blindly.

The reason why blind review was not practiced very much in the past was probably because the number of postgraduate students in China was too small at that time, and the school did not want to hold students back and prevent them from graduating.

But now, on the one hand, the number of graduate students has increased, and on the other hand, there are indeed too many graduate students, so the difficulty of evaluation has gradually increased.

The full implementation of blind review of dissertations will undoubtedly bring great pressure to graduation for doctoral students.

In the case of blind review, review teachers usually tend to give fairer grades.

As for the open trial, the experts who submit the review are basically acquaintances of the tutor, unless the tutor does not want the student to graduate, or the graduation thesis is too sloppy, which belongs to the kind that cannot bear to look directly at, otherwise they will probably give a comparison good grade.

"Before June 5, complete the dissertation defense."

From April 10 to June 5, there are nearly two months of defense time.

This preparation time is quite long, Xu Qiu estimated that it was mainly to prevent various accidents from happening:

For example, if the thesis review fails, the thesis needs to be revised, if the defense fails, the thesis needs to be revised or a second defense is required, etc.

"On June 6, submit the materials to the Academic Affairs Office of the Department of Materials, including 2 paper dissertations, 1 degree application form, dissertation review book, dissertation grading form, dissertation grading form, defense committee votes, defense Meeting minutes and resolutions, training manuals..."

There are still a lot of materials to submit, and most of them have to be put in the file, so handwritten materials are required, which is troublesome.

Next, Tian Qing reported her own work, and she did not get any useful conclusions from her own experiments.

However, sending samples to Ronald's team in Finland has made good progress.

The Ronald team successfully constructed the correlation between the device structure, interfacial charge recombination and device performance of the stacked device through the new CELIV test method, and found the corresponding relationship between the selection of the transport layer material and the interface charge recombination, and The impact of this correspondence on the performance of the final device.

Based on these conclusions, it is enough to tell a story.

Therefore, Tian Qing began to sort out the articles, intending to submit to "Natural Photoelectricity" for a try.

Although her submission to the major sub-journal of "Nature" belongs to "high-level submission", in any case, there is a certain chance of winning the manuscript.

After all, this job is based on Xu Qiu's previous "Science" article, and it can be regarded as a hot spot in his research group.

The Matthew effect in the scientific research circle is also very obvious, and the winner takes all.

For example, after the fields of perovskite and graphene become popular, even a very simple discovery can publish high-end articles.

Now, Xu Qiu has already made the field of organic photovoltaics more popular, and the status of cross-work related to it will also rise with the tide.

Xu Qiu did almost no experiments in the past two weeks. He concentrated on coding the article for two weeks, and finally got the first draft of the "Nature" article.

There are still ten days before the end of the month. Before going to the beautiful country to attend the MRS conference, there is no problem in correcting this "Nature" article and submitting it.

At the group meeting, Xu Qiu showed four pictures of the text in the "Nature" article edited by Tian Qing through PPT, and talked about his own writing ideas.

The other people in the organic photovoltaic team basically assisted Xu Qiu in the experiments in the past two weeks, and did not start their own work.

Han Jiaying led Xu Xinjie, who was mainly responsible for device preparation. After repeated experiments on ten batches of devices in different batches, the highest efficiency of the binary single-junction L6-Cl:Y20 system has reached 18.27%.

At the same time, Xuemei was also responsible for the preparation of various conceptual devices, including flexible, large-size, translucent, and scrape-coated devices, and took some pictures of the actual objects, which were put into Xu Qiu's text after splicing.

With Yin Houlang and Fan Wentang, Wu Shengnan is mainly responsible for various characterization tests, including CV, GPC, NMR, TEM, AFM, etc...

While the pictures and descriptions of most characterization tests would not fit in the Nature text, the tests must be tested.

Because higher-level journals have higher requirements for data completeness and repeatability, it is very normal for some articles to contain more supporting information than the main text.

For example, in this "Nature" article, Xu Qiu included 27 pictures and tables in the supporting information, a description of more than 5,000 words, and 12 additional references...

The main text is only five pages long, and there are more than ten pages of supporting information...

Mo Wenlin first went to NIM and got the results of the third-party test. The highest efficiency calibration value is 18.0%, which is comparable to the test results in the laboratory, indicating that the data tested in the laboratory is very reliable.

At that time, the NIM brother who was in charge of the test was stunned when he saw the test results, and said on the spot: "Your research team is on a rocket, and the performance improvement is so exaggerated?!"

A few days ago, Mo Wenlin brought the early Y series materials calibrated by NIM, the highest efficiency was only a little over 15%, and now it has directly rushed to 18% after only one month has passed, which is really unconvincing.

After the group meeting, Wei Xingsi left Xu Qiu and Wu Feifei behind, and said, "I just received a notice from the department this morning that we need to do a lab safety information board and a fixed asset inventory...I forwarded the email to you guys."

Xu Qiu and Wu Feifei looked at each other, nodded in agreement and said, "Okay."

Afterwards, the two returned to Room 401S to check emails together.

For the safety information card, you must first fill in a laboratory safety information card of Shanghai Comprehensive University, including the name of the laboratory, the person in charge of the research group \u0026 contact information, the person in charge of laboratory safety \u0026 contact information, the laboratory safety officer \u0026 contact information, and the Emergency call.

Then, the completed EXCEL form should be returned to the department, and the department will print out the information board, which can be hung at the door of the laboratory after receiving it.

The person in charge of the research group and the person in charge of laboratory safety must be Wei Xingsi.

As for the laboratory safety officer, he is usually a student, and currently there is a vacancy, so it is necessary to determine this candidate.

So, Wu Feifei turned her head and asked, "Who will be the security officer?"

Xu Qiu thought for a while, and replied: "We are two, one for each? There are two laboratories. I am in charge of the organic laboratory of 520, and you are in charge of the device laboratory of 522."

Wu Feifei has no objection: "Yes."

After filling out the EXCEL form and sending it to the department, the two continued to look at another fixed asset inventory work, which was relatively complicated.

All furniture, instruments, and equipment in the laboratory need to be counted and checked separately.

The statistical content is very detailed, including serial number, asset number, name, model, total price, building, department, custodian, campus, storage location, precautions, etc...

Because all instruments, equipment, and furniture in colleges and universities are owned by departments, schools, and the state, the requirements for this aspect are relatively strict.

Every instrument, equipment, and furniture has a corresponding fixed asset number. If it is scrapped, there will be a more complicated process to go.

There was also a reason why Wei Xingsi packed all the furniture from Handan's office and brought it to Jiangwan's office, and that was that it was troublesome to scrap these old furniture.

As for the fume hoods and furniture in Zhang Jiang's laboratory and office, it was discussed with the department at that time, and all of them were packaged and returned to the department, so there was no relocation.

The inventory of fixed assets is carried out every once in a while. Wu Feifei conducted an inventory two years ago, and now it needs to be supplemented and revised.

The workload is still quite a lot.

Because the laboratories of Handan and Zhangjiang moved to Jiangwan as a whole, and changed the campus and storage location, basically all the information needs to be changed again.

Xu Qiu gave the first draft of the "Nature" article to several other authors in the group, including Wu Shengnan, Mo Wenlin, Han Jiaying, Chen Wanqing, and others for revision, and he himself participated in the investigation.

On the one hand, Xu Qiu has been writing articles for two weeks, and he is a little tired, and wants to change his taste;

On the other hand, he is also more curious about how much "family wealth" Wei Xingsi has.

After all, if Xu Qiu chooses to stay in school in the future, he will definitely cooperate with Wei Xingsi, and these "family properties" can be regarded as part of him.

Of course, if Xu Qiu chooses another path, such as studying abroad, finding a teaching position abroad, and then returning to China to start his own business after completing his studies, Wei Xingsi's accumulation will not have much to do with him.

However, these are all things in the future, far away from the present Xu Qiu.

After some investigation, Xu Qiu found that the fixed assets in Wei Xingsi's research group were quite valuable.

After Wei Xingsi returned to China, all the scientific research funds added up to more than 300 W, which were basically converted into fixed assets, which also included fixed assets provided by some departments, such as fume hoods, etc., which were not reimbursed by Mr. Wei himself. .

Specifically, there are a total of 21 pieces of furniture, mainly including fume hoods, reagent cabinets, laboratory benches, etc., with a total value of 107,470 soft sister coins.

Like Zhang Jiang's fume hood before, one is worth 8300 soft sister coins;

There is a large experimental platform with two sinks in the center, one worth 6680 soft sister coins;

A chemical reagent cabinet with explosion-proof function, one worth 6200 soft sister coins.

All are full premium.

It can also be seen that no matter what it is, as long as it has something to do with scientific research, there is nothing cheap.

In terms of equipment, there are a total of 81 pieces, with a total value of 2466404.58 soft sister coins.

It's a full 246W, and there are still some parts.

More expensive instruments, including:

Single-chamber thermal evaporation vacuum coating machine, 27W;

Solar simulator, 22.9W;

Solar cell quantum efficiency tester, 21.9W;

Fluorescence spectrometer, 20W;