Chapter 174: AM is no longer difficult to give birth

"I have a scientific research support system ( to find the latest chapter!
The first is to design the experimental content, mainly including Xu Qiu's own system P4T, and Han Jiaying's two systems P3T and P5T.
After all, the school girl has helped him a lot during this period, and it is reasonable to help her try the best conditions for the experiment.
As for the systems of the senior sister, there is no need to test because the thermal spin coating method has not improved significantly.
There are a total of three systems, each with five processing temperatures and five speeds, and a total of 75 sets of conditions.
It seems that there is still a lot of experiment content today.
In the simulation laboratory, many zinc oxide substrates were copied before, but instead of starting the experiment from scratch, the effective layer can be spin-coated directly on the substrate.
After Xu Qiu took a few deep breaths, he started the experiment.
Place the substrate, absorb the solution, turn on the rotation, spray, and discard the pipette tip in one go.
With a four-fold acceleration, the entire process takes no more than thirty seconds, just like a spin-coating machine without emotion.
He spin-coated a total of 81 times, of which 6 times the film was not perfect, so he just discarded it and redone it.
It took less than an hour.
If this is done in reality, the experimental time required is conservatively estimated to be two or three hours.
After the experiment was finished, the whole morning passed.
After that, Xu Qiu divided these devices into four batches for evaporation and testing.
Speaking of testing, he heard that in some research groups, the simulated solar light source is not integrated in the evaporation glove box, but placed outside the glove box, that is, exposed to the air.
When testing, you need to put the substrate in a similar sample holder, and then take it out for testing.
In this case, the difficulty of the test will increase significantly.
On the one hand, in order to ensure the air tightness of the sample holder, four screws are used to fix it, and the sample holder must be disassembled and assembled every time the sample is changed. On the other hand, the sample holder must be drawn three times every time it enters and exits the glove box.
The fixed time cost is too high, even if there is a system, the experiment speed will be much slower.
Fortunately, he doesn't need to worry about this problem, he can complete the test directly in the glove box.
With a four-fold acceleration, the test speed was very fast, and it ended soon.
Xu Qiu's system has a maximum efficiency of 11.10%.
The dramatic thing is that the optimal experimental conditions are no different from the batch done in reality today. It is still 100 degrees Celsius and 3500r.p.m..
Although it was a bit unexpected, it was reasonable. After all, the two experiments used different solutions, and the old solution may have a higher concentration.
In the two systems of the school girl, one of the highest efficiency is 7.23%, the condition is 90 degrees Celsius, 3000r.p.m., and the other is the highest 6.77%.
Unfortunately, her system currently has no hope of hitting 8%.
...
Thursday morning.
I must make a device today and repeat the results in the simulation laboratory yesterday.
When Xu Qiu went to the laboratory and saw Han Jiaying preparing light source samples, she did not disturb her and decided to experiment by herself.
I applied 81 tablets yesterday, and my hands are now warm.
However, to experiment in reality, we must start with cleaning the substrate.
Fortunately, the school girl has a good habit. She will save a batch of clean substrates that have reached isopropanol in the cleaning step, and when necessary, they can be directly taken and dried for use.
In addition, including the zinc oxide prepolymer solution, which is commonly used, she reconfigures it for use once a week.
This saves a lot of time when making the device formally.
For example, Chen Wanqing did not have such a habit, nor did Xu Qiu. This is a spontaneous good habit of a school girl, and it is commendable.
Brush the zinc oxide substrate and finish spinning.
While waiting for the substrate to anneal, Xu Qiu returned to the desk and sat next to Chen Wanqing, preparing to process yesterday's CELIV data.
He glanced at the senior sister's computer, she was also processing yesterday's UV-vis data.
In the ORIGIN software on her screen, a bunch of colorful curves were drawn, and the trend of change seemed obvious.
At this moment, from the corner of Xu Qiu's eyes, he saw a dark shadow at door 216.
He raised his head and looked intently, and it was actually Teacher Wei.
For an instant, the two looked at each other.
Xu Qiu was startled, I was being watched by the boss?
But after another thought, I didn't do anything wrong, so I relaxed and started to think:
Teacher Wei suddenly appeared at the door, still silent, apparently rushing over in a hurry, what's the matter?
Could it be...
"Xu Qiu, your AM review comments are back. I took a look at it." After speaking, Wei Xingsi changed a smile and continued:
"The three reviewers are all positive comments. The editor's comments are minor changes. I forwarded the email to the two of you. Please take a look and write a reply to the text. This Friday, we Put this matter to an end."
"Okay." Xu Qiu didn't expect it to be bad, it really was a matter of the article.
He was also excited inside. After waiting for nearly two months, there was finally news, and it was still positive news.
Wu Feifei, Duan Yun and others at the desk cast envious glances, but because Teacher Wei was still there, they didn't take the initiative to say hi.
Xu Qiu thought of the results of yesterday’s experiment, so he organized the language and said:
"Ms. Wei, in my system, yesterday I used a new spin-coating instrument to prepare a batch of devices, and the efficiency reached 10.9%. I think the possibility of a further breakthrough to 11% is not small, so I plan to make two more batches of devices to try one. Try, and I'm going to name our material PCE11, what do you think?"
"Oh?"
"The efficiency can reach 11%?
"Also renamed to PCE11?"
Wei Xingsi stood there, pondered for a while, and nodded:
"Well, yes, you have a good idea. Just try it out according to your idea. You can give me the revised comments later, but don't be too late. How about Sunday?"
"Okay." Xu Qiu agreed.
After Teacher Wei left, Chen Wanqing smiled and said, "Congratulations to my younger brother, I am about to mention an AM soon."
"This hasn't been published yet," Xu Qiu said modestly, and then he arched his hands: "And the senior sister is also the second one, Tongxi, Tongxi."
Duan Yun next to him couldn't help but intervene: "Xu Qiu, I think I can prepare a treat in advance. With three positive comments, editorial changes, the probability of receiving the article is 90%."
"If the article is really published, the treat is a must," Xu Qiu said: "Let's take a look at the opinions first. In case we need to add any experiments, such as TRPL, which we can't test, it will be more difficult. , Sister, you can also take a look."
...
Opening the email, Xu Qiu noticed the time information.
His receipt time was six minutes ago, and the time the editor sent it to Teacher Wei was 14 minutes ago.
It seems that after receiving the e-mail, Mr. Wei should have browsed it roughly and hurried over to inform him.
Xu Qiu also read the e-mail first.
The core points are basically the same as what Mr. Wei said before. The editor's opinions are revised, and the deadline is 10 days. Three reviewers, one recommends direct acceptance, and the other two raised some questions and suggested minor changes.
Xu Qiu originally thought there would be many reviewers, but only three.
This time, it is difficult to judge whether the reviewer is domestic or not, but one can only see the high probability of one of the suggestions for minor changes.
It takes one hour to anneal the zinc oxide substrate, and now there are more than 30 minutes left.
Xu Qiu judged that it would be too late to write a complete reply.
Rather, you can list the general framework first, and then take advantage of the gaps in the experiment to slowly fill in the content, just like writing an article.
So he created a new WORD document, copied the comments in the email, and started replying one by one.
First, it is recommended to accept that person directly. His comments are only a few sentences, which is better to deal with.
Xu Qiu responded directly: "Thank you very much for your objective evaluation."
The other two reviewers have relatively more opinions:
The first item, "please supplement the standard deviation data in the photoelectric performance table."
Xu Qiu remembered that he had listed the standard deviation data. After returning to the main text, he found that the photoelectric conversion efficiency was calculated, but the other parameters were not calculated.
From this point of view, what the reviewer meant was to list the standard deviations of the other three photoelectric parameters, short-circuit current density, open-circuit voltage, and fill factor.
As expected of AM, it is much stricter. He hadn't noticed this problem before when he submitted to other journals.
So he replied: "Thank you for your comments, we have made the corresponding changes."
Due to time constraints, he highlighted the areas that need to be modified in the text.
The second item, "please add the integral curve of the EQE results corresponding to the photogenerated current density."
This integral curve is relatively easy to do, no additional experiment is needed, it can be calculated and exported directly with the software that comes with EQE.
Generally, no one will draw this chart specifically, and Xu Qiu also lists the final points data as usual.
However, the reviewers are all uncles. Now that they have mentioned them, some innocuous opinions are accepted.
Perhaps the reviewer could not find other faults, and forcibly pick bones in the egg, this is also possible.
Xu Qiu replied: "Thank you for your comments, we have added the corresponding pictures."
It is worth noting that the expression in Chinese here is "thank you for your opinion", but there will be different expressions in English.
This was also what he learned from Chen Wanqing's reply. UU read www.uukanshu.com at that time, there were nine comments from the reviewers of her article. She thanked her nine times in total, and her expression was different each time.
However, most of the changes were made by Teacher Wei. If it is a senior sister, she should only know: "Thankyou..."
The third article, "page 7, line 19, there is a spelling error."
This is relatively easy to change, Xu Qiu directly modified it in the text.
It is still very difficult to write an article without making a single mistake. After all, there are thousands of words.
Although WORD has its own error correction function, but when it comes to proper nouns, only intelligent error correction will definitely miss something.
However, the reviewer did not say that the article needs to be polished, which shows that the article still passes the language.
Article 4, "Please add the specific operation of the thermal spin coating method mentioned in the article."
In the experimental procedure, Xu Qiu didn't elaborate on the description, only said that "using a hot solution, at 2500r.p.m. rotational speed conditions for thermal spin coating to obtain an effective layer of film."
For example, the use of 20 microliters of solution, spraying method, the dihedral angle between the pipette gun and the substrate surface during spraying is about 45 degrees, and the substrate and the solution must be heated at the same time. These specific operating information are all hidden by him.
The question asked by the reviewer, to be honest, was a bit beyond his expectations. Perhaps the other party was very interested in this work.
Because the specific experimental methods are all placed in the supporting information part, when he is reviewing the manuscript, this part of the content is generally not read very carefully, and it is roughly scanned.
After thinking about it for a moment, Xu Qiu decided to write the parameters of the new equipment, similar to "We used the XX heating type homogenizer, and the conditions are...".
There are only these four main amendments. After reading all of them, Xu Qiu has a clear heart.
This AM is basically stable.