Chapter 323: Wayward Xu Qiu

Because there is no reference object, Xu Qiu has to design the ITO pattern himself.
This kind of pattern that requires precise drawing requires CAD software in theory, but Xu Qiu does not know CAD, so he uses PPT instead. Anyway, he is now Party A.
In fact, PPT is very powerful, and there are many templates in it. The post effects of most of the pictures in Xu Qiu's article are processed by PPT.
The first is to determine the size of the substrate. This is not suitable for easy change. Xu Qiu decided to use a square substrate of one square inch, which is about 2.54 cm. He directly pulled out a square with a side length of 2.54 cm in the PPT.
Then there is the central pattern. Circles and squares are simple patterns that are easier to think of.
Xu Qiu considered for a while and decided to use a circle. Although the substrate is square, and the 0.04 and 0.09 square centimeter patterns obtained by the previous overlap method are also square, the spin coating process is similar to the solution from the center of the substrate to the periphery. For film formation, the thickness and properties of the effective layer on the circular boundary are relatively close.
Of course, this reason is a bit weak. In fact, the main reason is that Xu Qiu simply thinks a round shape is better...
Researchers can often decide something more willful, just like Chen Wanqing previously named her materials C4, CH3, and CH4.
Next, determine the size of the effective area.
When Xu Qiu patted his forehead, he first calculated according to one square centimeter. At this time, the inconvenience of the circle is reflected. If it is a square, even elementary school students can calculate that the side length is one centimeter.
After pressing the calculator a few times, Xu Qiu found that the radius is about 0.56 cm, so the diameter is 1.12 cm, and the side length of the substrate is about 2.54 cm. Obviously the circle in the middle is a bit smaller.
So, he continued to increase the area to two square centimeters, at which time the radius became 0.80 centimeters, which is more appropriate.
Xu Qiu first drew a circle with a radius of 0.80 cm and moved it to the center of the square, and then added a 0.30 cm wide and 2.54 cm long rectangle to the bottom of the square as the ITO electrode connection point. Finally, he used one A thin wire with a width of 0.10 cm connects the central circular and side rectangular electrodes.
It is the shape of a circle and an inverted T, a bit like a globe.
Mark the length of each pattern on the side, and the ITO substrate pattern is designed.
Finally, Xu Qiu started to design the mask. This was easier. He directly made rectangles with lengths and widths of 2.54 cm and 2.10 cm. Then, according to the style of the previous mask, 25 copies were made to form a 55. Array.
Xu Qiu simulated the device preparation process in his mind. Through the mask, a metal electrode can be vapor-deposited on the device. The metal electrode will cover the position of 2.54 cm 2.10 cm above the ITO substrate, leaving a space of 0.44 cm. The final metal The overlap between the electrode and the lower ITO is a circle with a central radius of 0.80 cm and a thin line about 0.03 cm long. The area of ​​the thin line is about 0.003 cm2, which can be almost ignored. The final effective area is 2 cm2 .
After obtaining large-size devices, use shielding plates of different areas to obtain test data of battery devices of different sizes. When the shielding plates are used for testing, the non-tested areas will not be exposed to light, so lateral orientation can be avoided. The current problem makes the test result more accurate.
The new ITO pattern didn't seem to be a problem. Xu Qiu talked with Duan Yun about the mask and mask. He knew that Duan Yun's brother could process it.
After getting the quotation, Xu Qiu brought the sample picture PPT to 218 to discuss with Wei Xingsi.
At this time, Wei Xingsi was making tea and drinking. Seeing Xu Qiu, the two chatted for a few words about walking the red carpet in the afternoon, and then they got into the topic.
Speaking of it, the coffee culture in the beautiful country is very popular, but Xu Qiu never saw Wei Xingsi, who returned from the beautiful country, drank coffee. He always drank tea, and he didn't know why.
After reading the PPT, Wei Xingsi nodded and said, "This idea is still very clever and beautiful."
After a pause, he continued: "Theoretically, I don't think there is any problem. How about it? We still have to actually make standard devices. By the way, is the conductive glass manufacturer you picked reliable?"
"Reliable, Gong Yuanjiang and his group bought this one." Xu Qiu replied.
"Oh, that's fine." Wei Xingsi didn't ask too much, and then said: "You can let Duan Yun help you to do the masks and masks."
"I've already asked," Xu Qiu said: "They quoted a price of 3000, a set including two masks, and various sizes of masks, I negotiated with them, and talked about 2500." Xu Qiu remembered At that time, the first bite was cut directly to 300, and Duan Yun was shocked to slap the table directly...
Wei Xingsi thought for a moment, and said, "Let him do it, get it done as soon as possible, and remember to invoice."
The next morning, Han Jiaying and Wu Shengnan both ran to Zhang Jiang for synthesis.
The school girl’s experiment was stopped for two days on Monday and Tuesday, and it will be started. Although the organic synthesis experiment lasts for a long time, usually ten days a week, it doesn’t take much time on average every day. It’s more suitable for reviewing and doing it if you’re tired. An experiment to adjust your mood.
Xu Qiu came to Caiyi 216, dialed the phone number on the ITO substrate package of Gong Yuanjiang's research group, and was quickly connected.
"Hello, Shuohua conductive glass."
"Here is the Wei Xingsi research group of the Magic City University. I want to order a batch of ITO substrates."
"Okay, if it is convenient, please add sales QQ chat, the number is 90..."
"90...?"
"correct."
After hanging up the phone, Xu Qiu added the other party's QQ, named "Suohua ITO".
There are many types of conductive glass, according to the composition of the conductive film on the glass, divided into ITO, FTO, AZO, etc., of which ITO is the most widely used one.
Xu Qiu sent the picture of the ITO substrate made yesterday, and then asked: "Can this style of ITO substrate be made? What is the price?"
One minute later, I received a reply: "Starting from 500 pieces, the price is 4 yuan per piece, 1000 pieces+, 3.5 yuan per piece, 2000 pieces+, 3 yuan per piece. This pattern is more complicated, with a thin line, single piece The price will go up by 1 yuan."
Xu Qiu figured it out. As expected, the domestic ones are much cheaper. The imported ones cost about US$4 per piece, which is more than 20 yuan. Now even if the price rises by 1 yuan, the most expensive is only 5 yuan. Four or five times.
If you use new ITO, you don't even need to reuse it. The old ITO substrate is still troublesome to wash, and repeated use will have scratches on it, which will also affect device performance.
The performance of the device is the result of a comprehensive combination. The effective layer material determines the base number. Various conditions encountered in the preparation of the device will reduce this value. For example, there is a scratch, and the efficiency is -3%; A particle of dust, efficiency -4%; without evaporation of the transmission layer, efficiency -20%...
After thinking about it for a moment, Xu Qiu replied: "First order 500 pieces. The address is 201, 1st Floor, Materials, Handan Campus, Magic City Magic City Comprehensive University. The addressee... needs to be invoiced, header information, Magic City Comprehensive University, taxpayer identification The number is 1210..."
"Dear, we need to sign an electronic contract first~EbookFREE.me~ because it is the first time to cooperate, and you and the research group tutor need to sign together. If there is no problem, I will generate a contract template for you." Respondent sales response.
"Yes." Xu Qiu judged in his heart that before he cooperated with Shencheng Optoelectronics to buy monomers, the other party had only one quotation, and they did not sign the contract, but shipped directly. It seems that their profits should be very high, and they are not afraid of occasional orders However, this kind of conductive glass has transparent prices and relatively high competition, mainly relying on small profits but quick turnover.
Three minutes later, the other party sent a PDF contract document.
After seeing it, Xu Qiu felt that there was no problem, so he signed the contract with Teacher Wei and sent it back. The ITO substrate matter was temporarily closed.
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There is still a big difference between the scientific research process and the life of a class in a university. It is not that the experiment is done without changing the head cover, but all kinds of things may be encountered all the time, waiting to be dealt with.
PS: I continue to 7500+ today, the current debt is 3W1, and I have already paid 1W8, we will strive for more tomorrow.