Chapter 390: Chat skills

Text 390 Chat Skills (for subscription)
On Tuesday morning, Caiyi 216.
Xu Qiu intends to deduce the results in the simulation laboratory in reality, and convert them into results as soon as possible.
Therefore, Xu Qiu found Mo Wenlin who was cleaning the substrate in the laboratory and said: "How about the recent article on three-component devices?"
"It's okay," Mo Wenlin replied, and then changed the cleaning solvent from acetone to isopropanol, and continued: "In general, write in accordance with the idea of'acceptor alloy' you mentioned before. Now whether it is from The angle of light absorption or the short-circuit current density of the device can support this view."
"Well, that's right," Xu Qiu said, "Today I have time to help build two systems, pce10:-4f and pce10:fn-4f, I want to prepare a batch of translucent devices."
Mo Wenlin nodded: "Okay, is there any difference between the specific device preparation and the normal device?"
Xu Qiu explained: "It is exactly the same before evaporation. A special process is required during evaporation. I will teach you at that time. By the way, I prepared the solution yesterday and placed it on the mixing table. "
"Okay." Mo Wenlin made an ok gesture, and after Xu Qiu walked away, she whispered: "Why is Xu Qiu becoming more and more like Teacher Wei?"
This is not her illusion. Wei Xingsi usually finds people to do things like this. First greet people, talk a few words at random, and then change the subject, such as: "Sun Wo, how did the device test result yesterday... Oh, it’s not very good. Okay, let’s try again today... By the way, you can go to the Finance Office when you have time to deliver the appointment reimbursement form for the student subsidy of the research group this month."
Xu Qiu learned this kind of speaking skills under the influence of ears and eyes. It was too straightforward to come up and find someone to do things directly, and it would be logical for him to make a start.
After confessing the matter with Mo Wenlin, Xu Qiu returned to the inner office, and found Chen Wanqing and Han Jiaying, and asked: "Senior sister, senior sister, how is the current situation of Blue River Company?"
"Hmm..." Chen Wanqing thought for a while and said: "Blue River Technology has hired a new programmer to help them write the control program. Now the stability of scribing is better than before;"
"At the same time, last week they found a micro-nano processing office in Magic City and customized a ceramic scraper. It is said that a multi-layered scaly structure design was carried out on the bottom of the blade to help improve the uniformity of the film thickness;"
"In addition, they also transferred the squeegee coating machine to the glove box instead of squeegeeing in the air. Now the performance based on the j1: idic system is the highest. At present, the squeegee efficiency can reach 8.6%, which is only better than the spin coating method. 11.5% result is 3 percentage points lower..."
Xu Qiu nodded. In three weeks or so, there was so much progress. He was not surprised. After all, it is the main company of Blue River. It is not bad for money, the equipment is the best, and the employees are all recruited. The combat effectiveness of masters and doctors from prestigious universities is naturally considerable.
Afterwards, Han Jiaying said: "In addition, Yang Qin brought the newly recruited master students to Blue River Optoelectronics Materials and started synthesis. My sister and I asked them to start with two standard and acceptor materials, namely j1 and itic. , Because it is synthesized from raw materials, the difficulty is not low, and now they are still exploring the conditions..."
After Xu Qiu got all the information, he asked, "When are you going to pass this week?"
"Brother, do you want to come together?" Han Jiaying immediately understood Xu Qiu's meaning, and began to help analyze: "Brother, you will have class on Thursday, and they should have a holiday on National Day Blue River on Friday, so shall we be there on Wednesday?"
Chen Wanqing nodded: "I'm fine."
Xu Qiu also responded: "Okay, let's go on Wednesday."
Chen Wanqing asked casually, "Xu Qiu, why did you suddenly want to go to the Blue River?"
Xu Qiu explained his second job idea: "I want to use the senior sister's -4cl material, with h43, j2, and pce10 donors, and go to Lanhe to prepare a flexible and translucent method by scratching. , Colorful, all-solution-processed organic photovoltaic devices..."
"That's it..." Chen Wanqing thought for a moment, and said: "This idea is not bad. If the device results are good, a good article can be published, which means that the requirements for the craft are relatively high. By the way, Xu Qiu, you plan to do this job yourself Do it or..."
Halfway through the conversation, Chen Wanqing suddenly thought of something and turned to look at Xu Qiu.
Xu Qiu made an innocent look at the senior sister.
"All right, all right." Chen Wanqing was quickly defeated: "Anyway, this -4cl article in my hand will be written right away. I will help you by the way. Let's talk, what is the expected result?"
"The efficiency is 7%, 8%, not too high." Xu Qiu responded.
Chen Wanqing gave him a clear glance: "7% and 8% are not too high. The previous 8.6% result is the result of only scraping the effective layer on the ito glass substrate. The electrode and the transmission layer are all evaporated molybdenum trioxide and If the aluminum electrode is replaced with a flexible and semi-transparent device, the result we get is only 6.2%, and this is the most suitable idic system for scratch coating..."
"Senior Sister, I can only ask you to cheer." Xu Qiu said with a smile.
After speaking, he glanced at the preliminary results obtained in the simulation laboratory iii. According to the previous idea, the flexible, translucent, all-solution processing device was prepared by the scratch coating method. The most efficient of the three systems is pce10:- 4cl, only 5.1%, there is a big gap between 7% and 8%.
There is indeed a long way to go. This is somewhat similar to a mathematical phenomenon: "0.95 to the tenth power is approximately equal to 0.59."
When it comes to multi-step processing, even if each step is done very well, that is, 0.95, and the final stack is over, it may fail, that is, 0.59.
Not to mention flexible, translucent, scratch-coating, and full-solution processing methods, many processes cannot be the best.
Of course, in the initial stage, there is no way to do this, and you can only take it slowly.
However, the priority of this work is relatively low. First publish the work that broke the world record, and hold an am.
After chatting with the school sister and school girl for a while, Xu Qiu began to write an article about the two systems of pce10:-4f and pce10:fn-4f, and proposed to vote for am.
Although the work has not started to progress in reality, the article can be written first. This is the "advantage" of the article that does not require the development of new materials. It is used for a series of basic characterizations such as nuclear magnetism, elemental analysis, and cyclic voltammetry energy level measurement. It is enough to quote several documents synthesized for the first time directly after the material name.
The first is the structure of the text of the article. Xu Qiu makes plans by planning the content of the pictures.
The first picture shows the molecular structure, light absorption spectrum, and energy level structure of the three materials pce10, -4f, and fn-4f.
This can be regarded as a regular start. Basically, most articles in the field of organic photovoltaics will put these at the top, which happens to be a combination of three pictures of abc.
In the second picture, the morphological characterizations such as light source giwaxs, electron microscope tem, afm, etc. do not need to be put or even tested, because this is not the focus of the article.
Xu Qiu intends to directly put the best device performance, including device structure diagram, j-v curve, eqe curve, and also abc three pictures in one.
In the third picture, two sets of photos are directly placed, one is the photo of the translucent device itself, the other is the color logo of Modu University, and then the translucent device is placed on the color logo to take pictures.
On the one hand, you can clearly see the difference between the image with the position of the translucent device superimposed and the image without the position of the superimposed position, on the other hand, you can also promote a wave of alma mater incidentally.
This is also the inspiration that Xu Qiu got from reading the literature. He had seen the article published by the Lu Changjun research group of the Institute of Chemistry of the Chinese Academy of Sciences before. The text logo in the photo taken by the other party was printed diagonally on a piece of paper. The rows of "" are still black and white, they look weak.
Xu Qiu directly posted the color picture logo this time, pushing the frame to be higher.
In the fourth picture, Xu Qiu intends to add a little work to "self", in-depth study of the pce10:-4f system, the efficiency of the device and the corresponding avt value under different electrode thicknesses.
The thickness value decides to choose 10, 12, 14, 16, 18, 20, 100 nanometers respectively, of which 100 nanometers is used as a normal device, that is, the standard sample is used for reference, and the thickness of other thin-layer electrodes contains 1 nanometer of gold. .
A table can be listed here to list in detail the changes in data such as pce, avt, etc. under different electrode thicknesses in the form of a table.
The fifth picture... Xu Qiu found that there was really no experiment to do.
If there are only four pictures, UU reading www. uukanshu.com is not impossible, but the article seems a little thin.
So he decided to do something fancy, which was the inspiration he got when he read other people's literature before.
Normal device testing is done from the glass/ito lighting test. The conventional test method for semi-transparent devices is also the same, lighting from the transparent glass side.
Xu Qiu plans to test another set of device performance data that is illuminated from the side of the translucent electrode.
It is foreseeable that the device efficiency will definitely become lower, because the light will be absorbed by the translucent electrode for a fraction of the time before reaching the effective layer.
Most of the attenuation of efficiency comes from this absorption loss, so the magnitude of attenuation is basically equal to one minus the avt of the translucent electrode.
Anyway, it doesn't take too much effort to test it, and you can get one more picture. Why not do it.
More than two o'clock in the afternoon, Mo Wenlin completed the first few steps of device preparation, transferred the substrate to the evaporation glove box, and then entered the office, saying:
"Xu Qiu, for your two systems, I made two sets of rotation speeds for each group under the optimal conditions. Each group has two rotation speeds, and a total of eight devices. It's just the final evaporation."
"Okay, I will teach you how to evaporate translucent devices." Xu Qiu nodded, put on his lab coat, and entered the inner laboratory.
ps: Wan Geng ends today. It’s the New Year, I’m a little busy, try to make sure to update, if it breaks out, it breaks out, and if it doesn’t break out, it keeps two updates every day.
ps2: 8w characters have been updated in ten days from this month to the present. On average, it is 8k a day, which is equivalent to an increase of 2w characters, so monthly tickets and recommended votes are not too much.
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