I Have a Research Support System

After New Year's Day, the days returned to normal again.

There is still more than a month before the next holiday, which is the Spring Festival.

During this period, Xu Qiu's main task was to write articles, the secondary task was to cope with the two exams, and the side task was to guide the juniors to write articles.

For the course of the open-book exam, "Medical Polymer Materials", he started to review two days in advance, made a manual catalog of the courseware PPT, and then printed out the courseware PPT together with the catalog.

The table of contents mainly includes keywords and corresponding PPT page numbers. When answering the exam questions, scan the keywords of the question stems and compare them with the table of contents to quickly find the position of the corresponding knowledge points on the courseware.

Most open-book exams are only allowed to carry paper materials, so every exam week, the business of the major printing shops in the school is very hot, and sometimes it takes more than ten minutes or half an hour to queue up.

However, on-campus printing is really cheap, single-sided A4 is 10 cents, double-sided A4 is 15 cents, and there is a 20% discount for large quantities. If you print at an outside copy shop, many of them are printed one by one.

Speaking of fantasy, Xu Qiu heard from a senior that there is a course for graduate students called "Liquid Crystal Materials". It is also an open-book exam, but laptops can be brought into the exam room.

Moreover, students are allowed to consult the electronic version of courseware on the computer during the exam. It is said that it can reduce the burden of printing courseware for students, and it can also be green and environmentally friendly, but the function of online search cannot be used.

And the exam classrooms all have campus wireless networks. Whether students will search for answers directly on the Internet can only depend on the students' self-consciousness.

On another level, this is also a sign that the teachers don't care much about the students' grades.

After all, at the postgraduate level, the course learning situation has little impact on scientific research work. If you are really interested in a certain field, just search the corresponding literature directly.

Moreover, the general courseware is used for many years once it is made, and it is rarely updated, and it is difficult to keep up with the pace of cutting-edge scientific research.

Xu Qiu set aside a week to review the "Nanomaterials" course.

Although he skipped a lot of courses this semester, it was not difficult to review. This course is somewhat similar to a liberal arts course, so you can just memorize it.

...

Time passed by in a flash, and it was January 18th, and all exam subjects were over.

The grades haven't come out yet, but both are professional courses in the department, so it shouldn't be a problem to keep B+A.

Xu Qiu thought that he could compete with students of the same major.

This is mainly because when the sophomores were diverted, most of the top students with a GPA of over 3.5 went to microelectronics, and not many entered the Department of Materials.

The major of microelectronics is very polarized. There are a lot of high grade points in the head, but the absolute number of students with high grade points is relatively small. Therefore, there are not as many people who apply for this major when they are diverted, which eventually leads to a lot of grade points. The bottom of the ranking, only a student in his early 2s, couldn't find a place to go, and was also transferred.

Many students with high grade points in the material department are not high at the beginning, only about 3.2 or 3.3, and later in the second and third year, there will be more professional courses, and they will gradually catch up.

Xu Qiu can be regarded as an outlier, and his results have been in the T0 echelon from the beginning to the end.

In addition to successfully completing the final exam, Xu Qiu has also written an article on "The Effect of PCE11 System Sidechain Regulation on Device Performance".

This work is not lacking in novelty. After all, the four molecules differ only in their side chains, and their structures are too similar to PCE11.

But the workload is huge, and the three new molecules have undergone a full set of characterization tests.

And the efficiency of the device is not low. In addition to the 11% efficiency of the PCE11 material, the efficiencies of the other three systems have reached 8%, 9% and 10% respectively. The results obtained.

The workload is large enough and the efficiency is not low, which makes up for the lack of novelty to a certain extent.

Therefore, after negotiating with Mr. Wei, Xu Qiu gritted his teeth and voted for AEM, which is one of the main sub-journals of AM.

Although AEM is worse than AM, it is also a very good SCI journal.

As for whether this work can be accepted, it depends on how the editor and reviewers look at it.

Xu Qiu didn't think too much about it, anyway, the worst result would be to change and continue to vote.

He has published several articles, including AM, and now it is difficult for him to make too much fluctuation in his heart by submitting an ordinary article.

After the rejection of this article, it also means that the research on PCE11 series polymer donor materials has temporarily come to an end.

Xu Qiu will formally move towards a new field, the research of non-fullerene acceptor materials.

The first task is to complete the review proposal.

Most of the review articles on the field of organic photovoltaics on the market are about polymer donor materials. In the past two years, there have been no very comprehensive review articles written in the non-fullerene field.

Naturally, there are objective reasons for this phenomenon.

Most researchers like to chase hot spots. Compared with the research of donor materials, non-fullerene acceptor materials are less likely to produce results, so there are fewer published works, and naturally fewer review articles.

After all, review articles in unpopular fields are more likely to be rejected by editors.

Of course, these are not things that Xu Qiu considers. His original intention of writing the review is mainly to serve himself and let himself see this field clearly. The second is to publish articles. .

Before writing a review proposal, you must first read most of the articles in this field in recent years, covering at least 80% to 90% of the literature in the first and second districts, preferably completely covered.

Otherwise, if the corresponding author of the missing article happens to be a reviewer, the professionalism of the article will definitely be questioned.

For literature related to the non-fullerene field, Mr. Wei has already classified it once and sorted out the WORD documents. Chen Wanqing has also done related PPTs, and Xu Qiu will also undertake a certain amount of PPT update work later.

With these two documents, you can save a lot of time.

After spending a few days, Xu Qiu summarized the non-fullerene materials:

One is the derivative of perylene diimide PDI, which is one of the main research directions of Mr. Wei before returning to China, which can be regarded as his emotional system.

One type is the A-D-A type of small molecules, where A represents the electron-withdrawing unit and D represents the electron-donating unit, which is somewhat similar to the D and A units in the binary donor material D-A copolymer, but the unit structure is slightly different.

The A unit here is mostly a benzene ring or a five-membered thiophene ring with an electron-withdrawing group. The electron-withdrawing group usually includes a cyano group, a fluorine atom, etc., and the D unit is usually a large condensed ring composed of multiple aromatic rings. conjugated structure.

Another category is polymer receptor molecules, N2200 series.

These three categories are the main systems, and there are some other scattered and unsystematic ones. Xu Qiu classifies them all into other categories.