Chapter 371: Pre-skills that light up accidentally

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In the evening, Xu Qiu tested it in the simulation laboratory, copying the glove box, PCE10 material and scraping machine from Lanhe.
The main function of the glove box is to provide an oxygen-free and water-free environment. Under the same water and oxygen content, that is, the display is less than 0.1ppm, the difference between domestic and imported glove boxes is not very large.
Originally, Xu Qiu thought there would be any difference in the texture of rubber gloves, but found that there was no difference, and the imported ones would still have a clear sense of barrier.
However, there is a significant difference between PCE10 materials imported from Europe at 3W per gram and domestic purchases at 1W per gram.
The solubility of materials purchased in China is relatively low. It is difficult to dissolve in a chlorobenzene solvent, with a concentration of 6 mg/ml at room temperature, and needs to be heated to 60 degrees Celsius or even 90 degrees Celsius to slowly dissolve;
PCE10 imported from Europe, with the same concentration of 6 mg/ml, does not require heating and stirring. Vibrate the solution bottle vigorously, and it will be completely dissolved in less than a minute.
When he saw this result, Xu Qiu was quite surprised, because ordinary polymer materials are difficult to dissolve, either by heating or prolonging the time, such as overnight stirring, but now they are dissolved after shaking.
Unexplained, Xu Qiu used GPC to test the molecular weights of the two and found that the European imported materials have a number average molecular weight of 15kDa and a polydispersity coefficient as low as 1.2. The number average molecular weight of the domestically purchased material is similar to the former, which is 18kDa. But the polydispersity coefficient is very high, 1.7.
The closer the polydispersity coefficient is to 1, the smaller the molecular weight distribution range. Generally, the directly prepared polymer material has a polydispersity coefficient of about 2.0 or more. After one chloroform extraction, it can be about 1.4-1.8.
Their polydispersity coefficient of 1.2 should be the result of repeated chloroform extraction operations, or some other unique "secret", which locked the molecular weight in a small range and almost completely eliminated high molecular weight insoluble substances.
Of course, the core competitiveness of optoelectronic materials is not whether it dissolves well, but how their optoelectronic properties are.
Therefore, Xu Qiu tried to use this batch of European imported PCE10 materials for devices, and the system was selected as PCE10:-4F. The results showed that the performance of the devices based on European imported materials was 0.3% higher than the original efficiency based on domestic materials.
Sure enough, you get what you pay for, and the price is expensive for a reason.
Finally, Xu Qiu tried the squeegee coating machine developed by Lanhe. In a nitrogen glove box, using the full solution method, Lanhe’s flexible substrate and the glass substrate in the Wei Xingsi group were used to prepare several PCE10: PCBM standard sample, the highest efficiency reached 5.92% and 7.11% respectively.
I'm used to the devices prepared by spin coating. The devices obtained by squeegee coating are a bit "ugly" and very uneven, just like when putting on makeup, the powder is almost scumming in some places, but some are bare. Come out of the original skin.
Although there are still quite a few problems for the time being, in general, the prospects for squeegee are very good.
Xu Qiu hoped that Yang Qin, the general under Blue River, could optimize these as soon as possible, so that he could use it directly.
However, Xu Qiu’s main gain is not the scratch coating, but the preparation of silver nanowire transparent electrodes for Blue River's full-solution method.
What Blue River bought was a silver nanowire dispersion produced by a domestic company, and prepared transparent silver nanowire electrodes with a specified shape by drip coating and masking.
The silver nanowire dispersion can be directly drip-coated or spin-coated to prepare transparent thin-film electrodes.
Xu Qiu quickly thought of a feasible idea: apply transparent thin-film electrodes to the ITO patterned glass substrate he designed, instead of metal electrodes prepared by evaporation, to obtain semi-transparent devices, and then apply them to laminated devices.
This can be regarded as a 15% device efficiency for him in the future, an impact on the CNS article, and a pre-requisite skill is illuminated in advance.
In the next few days, Xu Qiu continued with the two tasks at hand, IDIC and IDIC-4F system.
He has already started to write articles for the former, while the latter lacks some basic characterization experiments. Xu Qiu assigns these tasks to Han Jiaying and Mo Wenlin.
Among them, Xu Qiu only intends to highlight the characteristics of "thick film and large size" in the IDIC system currently underway, without conducting an in-depth analysis of the reasons behind it, because it is not necessary.
The bright spot of "the first thick-film, large-size organic photovoltaic device with an efficiency of more than 10%" alone is enough to support the publication of an AM-level article. Even with detailed analysis, conjecture, and opinions, there is no way. Break through the AM level.
In this case, it is better to leave this analysis process, which is the evidence of the "exciton diffusion distance", to the IDIC-4F system later, so that the benefits can be maximized.
This is actually a common practice in the academic circle. It is not that academics are nerds who do not know how to work. In fact, there are many "savvy" people. After all, the threshold of this circle is still relatively high.
On Thursday night, Xu Qiu was suddenly called 218 by Wei Xingsi.
Wei Xingsi said straightforwardly: "I told Blue River about the thing you told me the day before yesterday."
"How was the result?" Xu Qiu asked casually. When he heard Teacher Wei say this, he knew that it must have been done.
"Blue River agreed. He plans to open another company. He invested 5 million yuan, accounting for 75% of the shares. We used technology to buy shares, accounting for 25% of the shares. Among them, 15% of me, 10% of you, what do you think? ?"
Xu Qiu thought about it and replied: "I have no opinion."
"Yes, you agree," Wei Xingsi was not surprised, nodded and said: "Blue River will be responsible for the specific company registration, business license and other details. We don't have to worry about it. I will sign the documents when the time comes. Looking for you. By the way, give me your ID number."
"Xxxx..." Xu Qiu reported his ID number, and then went back to 216, thinking about taking shares in the company.
This kind of academic achievement is not a patent, there is no exclusivity, and it is not worth money, because the article is published and the molecular structure is there, and anyone can synthesize it.
As for technology investment, Wei Xingsi is the leader, and it is normal to get more shares. Xu Qiu owns 10% of the shares. It is not a small amount. He does not need to do much work, but only needs to provide general directions. Blue River invites some organic synthesis professionals. Masters and PhDs are responsible for the specific synthesis, and rounding is equivalent to taking money for nothing.
After conversion, 10% of the shares can also be worth 667,000. Of course, this is only wealth on paper, and there is no way to realize it. There is a high probability that the company will not be on the market. It depends on how much dividends the company can get after making money.
The investment in the organic synthesis laboratory is not high. Buy a few fume hoods and a better high-speed liquid chromatographic instrument that can pass four or five columns at the same time, and buy some microwave reactors, ovens, and vacuum ovens. , Rotary steaming and other equipment, add up to less than 1 million, if you do not buy a microwave reactor, the cost can be compressed to 50W.
As for the staff, it is also relatively simple. If you recruit one doctor, two masters, and two undergraduates, you will almost work together and you can start working directly.
The manpower of Magic City is relatively expensive, with a monthly salary of 15K for PhDs, 10K for masters, and 8K for undergraduates, and then let them work flexibly, spending almost 7W a month.
Sure enough, when I was an employee, I hated flexible work 996, but when I was a boss, I subconsciously wanted my employees to work 996 flexible, probably because of the alienation of capital.
Finally, there is the rent. For the organic synthesis laboratory, 200 square meters is almost enough. The rent plus the cost of water and electricity properties should be around 5W per month.
In total, the initial monthly fixed expenditure is about 12W.
For materials such as ITIC, if synthesized from the source, 1 gram of synthesis can sell for about 1W, and the cost of raw materials and consumables is less than 3,000 yuan. If you calculate the profit of 7,000 yuan, you only need to sell 18 grams of materials per month to pay back.
If the materials of the ITIC series can become popular and the business can be rolled out, the probability of making money is still relatively high.
After all, the average unit price of 1W1 gram of materials purchased by the Guangwei Xingsi Group at Shencheng Optoelectronics Co., Ltd. is more than 1 gram each month. The number of research groups in the field of organic photovoltaics in the country is estimated to be 50+.
Some large research groups have a lot of people and money, and they have a lot of money. A single purchase may be 5 grams or 10 grams. The consumption of materials is fast and the purchase is very diligent.
Even if some research groups do not plan to directly purchase ITIC acceptors and polymer donor products, they definitely have a demand for monomers.
For example, buy some intermediate units like IDTT-CHO and go back and design a new structure yourself, just like building blocks. This is also the development of new materials. The PCE11 material developed by Xu Qiu before was built in this way.
In addition to universities and research institutes, there are many domestic science and technology companies in the field of organic photovoltaics similar to those developed by Blue River. They also have the need to buy these materials, although Blue River chooses to buy them. PCE10 materials imported from Europe are used, but some companies will choose to buy domestic materials.
In addition, there are not many competitors in this industry. As far as Xu Qiu knows, there are fewer than ten domestic companies that specialize in this industry, and only three to five can be named, one each in Beijing, Suzhou, and Shenzhen. .
However, the user viscosity of this kind of company is usually relatively high. New companies need to grab customers from other companies, and they need to make a gradual process. This will test the ability of Blue River.
Xu Qiu suddenly discovered that he had really substituted himself as a shareholder of the company...
He also thought that when he bought the monomer materials for the synthesis of J2 and J3 donors, he seemed to have promised to provide the Shencheng Optoelectronics company with the literature of the latest materials developed in the group. Originally, he planned to delay it for a while, and then drag it to the electronic version of the article. To the other party, now it seems that you can pretend to forget this and drag it on indefinitely.
After all, my identity has changed. I used to be a partner, but now I have become a competitor. Naturally, I can't "capture an enemy."
PS: Today is the same three thousand words.
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