I Have a Research Support System

Monday morning.

The new juniors do not participate in the group meeting, so the members of the group meeting are still Mr. Wei and the five-person team in the laboratory.

Chen Wanqing was the first to report. Her latest work, the perovskite benchmark system for ammonium chloride additives, has almost supplemented the data, and she can start to write an article.

After discussing with Mr. Wei, I plan to vote for Chem. Mater., with an impact factor of around 10, which is considered a good journal under RSC.

Tian Qing's report was quite satisfactory, without any bright experimental results.

Duan Yun's equipment is still not set up, and he is happy to mention the lecture package of Teacher Wei again.

But he patted his chest and said, "I will see the dawn of dawn soon."

In recent weeks, Duan Yun has attracted a lot of teacher Wei's attention and successfully diverted the hatred.

Chen Wanqing was the best before, so she was always paid extra attention by Mr. Wei, which caused her to be trembling all the time.

Now that Teacher Wei has changed her target, she is the happiest.

In Chen Wanqing's report, the first part is about the device performance of her own system, and the second part is about the basic characterization of Xu Qiu's materials.

Finally, it was Xu Qiu's turn.

"Last week, I mainly went to Zhangjiang for synthesis, and only two batches of devices were made. The polymer material with good performance is P2FBT4T-2OD.

The first batch of devices had the highest efficiency of 8.88%, and the second batch increased to 9.23%.

This week I plan to do another synthesis, mainly to adjust the reaction time of the polymerization reaction. "

"9.2%, not bad, continue to optimize, hurry up." Wei Xingsi said:

"National Day is next week. Our holiday is still the same. On the morning of the 1st, we will organize a meeting, clean the laboratory in the afternoon, and come back in the afternoon on the 7th."

Wei Xingsi considered for a moment, then continued:

"Xu Qiu's job is quite special, so we still have to catch up with the schedule.

How about this, Tian Qing, help him measure CELIV and TOF this week, and study the kinetics of charge transport.

Chen Wanqing, please take him to make up other indicators. Except for the light source data, which can only be measured after the festival, other data should be tested this week. "

"Do you understand?" Wei Xingsi slightly raised his voice.

"Understood." The three agreed.

...

After the group meeting, everyone returned to 216.

"Still trying to finish testing other data this week, can you finish the measurement?"

While muttering, Chen Wanqing was operating the computer and making an appointment for testing on the instrument sharing platform of the Department of Materials and Department of Chemistry.

There are still a lot of remaining characterization tests, which obviously cannot be finished in a week.

"How to say?" Chen Wanqing discussed with Xu Qiu.

"Why don't we finish testing the characteristics that can be tested in the material department before the holiday?" Xu Qiu said.

"This proposal is not bad, at least it is more reliable than what Teacher Wei said," Chen Wanqing said:

"The instruments of the Materials Department will be given priority to the students of the Materials Department, so it is easier to make an appointment.

You are going to Zhangjiang to do synthesis from Monday to Wednesday, so I will make an appointment for the test from Wednesday to Friday. "

"Okay." Xu Qiu nodded.

The appointment went smoothly, and all the instruments in the department arrived, including:

Differential scanning calorimetry DSC, thermogravimetric analysis TGA, atomic force microscope AFM, gel chromatography GPC.

The others were all tested in the Department of Chemistry, and 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, elemental analyzer.

In-school tests are more convenient anyway.

The most troublesome part of the test characterization is the Modu light source test.

Not only is the test time arranged by the other party, but also the number of computer hours for each subject group is very limited.

Each test will consume the machine time margin corresponding to the test time, which is generally an integer multiple of 12 hours. If the machine time margin is 0, no new test can be arranged.

When you want to obtain a light source machine, you need to apply for the light source project first, twice a year, and you can apply once in March and September each year.

It is a bit similar to horizontal projects, such as the application of the Natural Science Foundation of China, but the requirements are not so high.

If the application is approved, the light source will allocate 12, 24, 48 hours or more machine time allowance to you.

This is a guarantee. In the past two years, Mr. Wei applied for three times, and passed each time, and gave him 24 hours of computer time, so he can take the test almost four times a year.

The projects applied for in September this year are still under review.

In addition, there is also a bonus machine time in Magic Capital Light Source.

After the researchers publish the article, if they involve the results of the light source test and thank the Magic City Light Source in the acknowledgment part of the paper, they can apply for a reward machine.

You can get 12, 24 hours or even more machine hours. Generally, SCI Zone 2 is 12 hours, and SCI Zone 1 is 24 hours.

If it is a more heavyweight journal, such as a major sub-journal of "Nature", it will reward more.

Of course, those who can publish such journals basically have endless computer time.

...

After discussing the experiment plan with his senior sister, Xu Qiu was not in a hurry to go to Zhang Jiang's laboratory.

Because the best reaction time for this batch of materials to carry out the polymerization reaction is 10 hours.

It's already eleven o'clock in the morning. Even if I leave for Zhangjiang immediately and do experiments non-stop, it will take three or four o'clock in the afternoon to submit a response.

At that time, it will be one or two o'clock in the morning to shut down the reaction, and it will take two hours for the subsequent capping reaction, and it will be four o'clock in the morning when everything is completed.

It is better to submit a response at night and deal with it the next morning.

Although Xu Qiu worked hard to do the experiment, he has not yet reached the point of doing the experiment all night.

In the afternoon, he and his senior sister used the space charge limited current method SCLC to test the mobility of electrons and holes in the active layer.

This method also uses battery devices, but the device structure is different from the normal structure.

For the devices used in SCLC, it is necessary to adjust the energy level structure of the transport layer, and the battery is designed to pass only electrons or only holes.

Then, apply a linear sweep voltage across the device, such as -2 to 7 volts, to obtain a J-V curve.

Through fitting calculation, the mobility of electrons and holes in the current effective layer can be calculated respectively.

In fact, Chen Wanqing didn'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, and no problems have been encountered in testing and data analysis.

...

After dinner, Xu Qiu took the school bus to Zhang Jiang's laboratory.

After ten o'clock in the evening, cast a good response.

10 hours of response time, the reaction was shut down at 8:00 the next morning.

After finishing the experiment, he returned to A501, looked through the literature, and tried to find ways to improve the performance of the device.

Unfortunately, it was not found.

This system was developed by him for the first time. It can be regarded as a pioneer in a small field.

Where is the way?

...

The next day, Xu Qiu shut down the reaction, blocked it, and processed it later.

Just as he was seriously experimenting, he suddenly heard footsteps coming from the door of the laboratory behind him.

He thought to himself, it seems that there is only Teacher Wei's laboratory on this floor, and the other rooms are empty, and only the cleaning aunt usually comes and goes.

Could it be that the cleaning lady came in?

Looking back, it turned out to be her.

Why is she here?