I Have a Research Support System

In the evening, Xu Qiu and Sun Yifan had dinner together and made contact with each other, then he went back to Caiyi 216 alone.

Not long after sitting down at the desk, Xu Qiu received a WeChat message from Lan He: "Are you free in the past few days, come to our company? I have already talked about it with Mr. Wei."

He didn't reply in a hurry, he discussed with Han Jiaying and Chen Wanqing first, and finally decided that choosing a date would be better than bumping into it, and set the time for tomorrow Tuesday afternoon.

Xu Qiu replied: "Two o'clock tomorrow afternoon."

Blue River: "Okay, this is the location of my company."

Later, he sent another location information, which was in Zhangjiang Science and Technology Park, which is very close to the Zhangjiang Campus of the Shanghai Metropolitan Comprehensive University, and the straight-line distance is only a few kilometers away.

In the afternoon of the next day, Xu Qiu took the school bus to the Zhangjiang campus with his seniors, and then followed the navigation to Blue River's company.

This is a building with multiple companies settled in. There are security guards on the first floor, and an access card is required to pass through. Xu Qiu had no choice but to send a message on WeChat to call out Lan He.

Not long after, Lan He in casual clothes appeared at the elevator entrance. After opening the door, he greeted him warmly with a smile on his face: "Xu Qiu, Chen Wanqing, Han Jiaying, welcome."

Everyone greeted each other, and Xu Qiu sighed in his heart: "As expected of being the boss, we met for dinner last time, and I can still remember the name. Most likely, I did my homework in advance."

A group of four people took the elevator to the third floor, and Blue River took the initiative to introduce: "This floor is the site of our Blue River Technology. Now the team has a total of five people, one with a doctorate and four with a master's degree."

"It's quite big." Xu Qiu agreed casually, and roughly estimated that the area of ​​one floor here should be close to 500 square meters.

Blue River first led Xu Qiu and the others into a laboratory.

This laboratory is relatively clean, with four glove boxes and two test benches inside.

In the laboratory, five engineering men in white coats are working. They are tall and short, but they are generally thin. There is an employee nameplate pinned to the chest of the white coats, and they look decent.

One of them was operating in the glove box, and two people were watching.

The other two people, one is cutting a flexible substrate of unknown material on the test bench, and the other is fiddling with stacks of long metal blades on the test bench, which are the old-fashioned razor blades, about 2 cm, about 1 cm wide.

Seeing Lan He bring Xu Qiu and the others in, the five of them continued to work while nodding their heads in greeting.

Lan He pointed to the person operating in the glove box, and introduced: "This is Yang Qin, the only doctor in our company at present. He graduated from Shanghai Jiaotong University. His previous research was mainly on organic field effect transistors."

Then, he pointed to the person next to him who was fiddling with the blade, and said: "This is one of our main research directions now, which is to use blade coating, that is, the method of scraping to prepare large-area organic films. The next idea is to assemble For other various coating methods, including spin coating and drop coating, an instrument has been developed to directly put the material in, set the program, and then the film can be prepared directly.”

Xu Qiu nodded, and roughly understood Lan He's current thinking. Simply put, it was to manufacture and sell instruments.

There is no big problem in this direction, because the development trend of scientific research instruments is foolishness. To put it bluntly, it is division of labor and cooperation. If you develop materials, you should concentrate on developing materials. Our instrument manufacturers will help you solve the problem of device preparation, as long as you pay for it. good.

In fact, Xu Qiu also hopes to have an instrument that can integrate various coating processes such as spin coating, scraping coating, drip coating, spray coating, thermal spin coating, thermal annealing, and solvent annealing. Go in, the program is designed, and the button is pressed. After "crackling, crackling", the device will come out directly. It would be better if it can be tested automatically.

If such an instrument can be developed, it would not be too much to buy a hundred thousand or hundreds of thousands.

Of course, just thinking about this perfect instrument is actually very difficult to realize because there are too many functions.

At the time of "1+1", you only need to consider the compatibility between the two, but at the time of "10+1", you have to consider the compatibility between the new function and the other 10 functions, and the complexity will be greatly increased. promote.

Having said that, as long as a simplified version can be produced, for example, it only has the function of scraping and coating, it can also be used as the first-generation instrument and start selling money.

In the future, it will be necessary to slowly upgrade the functions of the instrument.

This is also the mainstream business model. First implement a passable weak chicken version, and then iterate from generation to generation to continuously strengthen and improve.

If you pursue perfection too much at the beginning, there is a high probability that you will starve yourself to death before reaching perfection.

Just like many games, they were voted out when they felt that they were semi-finished products, which made people feel like they were cheating Krypton.

In fact, it is cheating. There is a high probability that the game company has no money and needs to return blood. If the game improves after making a wave of money, continue to work hard. If the momentum is not right after making a wave of money, it is estimated that you should prepare to run up.

After all, not every game manufacturer is a goose factory or pig factory that is not short of money.

While Xu Qiu was thinking about it, he suddenly heard the familiar "bang" and "beep" in the glove box next to it, which were the sound of the "sun" starting up and the sound of the test source meter starting to run respectively.

‘This is testing device performance. Xu Qiu couldn't help but walked over to the glove box, wanting to see how their current efficiency is doing. The two white coats who were watching by the glove box offered to give way to Xu Qiu and Lan He. .

"The device is broken." Chen Wanqing blurted out, and she saw that the J-V curve in the bright state was not the normal pattern of "leveling first and then rising", but messy, and the current value on the ordinate was very low, only negative five times of ten Fang Ma, this is the sign of a broken device that she is very familiar with...

Xu Qiu and Han Jiaying didn't realize it at first. When they usually experimented, they didn't encounter many disconnections.

Yang Qin, who was testing the experiment, was a little embarrassed, and Lan He also urged in a little embarrassment: "Test another point."

Yang Qin changed a point silently.

Xu Qiu saw the appearance of their devices. Different from those in Wei Xingsi's group, Blue River used a flexible substrate, a strip-shaped device, about 3 centimeters long and 1 centimeter wide, with dozens of long Strip-shaped translucent electrodes.

The color of the device is dark blue to purple, and it is obviously very uneven. In some places, there is no film and it is almost transparent. In some places, the film is very thick and almost opaque.

Xu Qiu inferred that they used the method of scraping coating, and the material of the effective layer is most likely the standard sample system PCE10:PCBM.

"Bang", "Drip"...

Soon, the test results of the second point came out.

"The device is short-circuited." Chen Wanqing blurted out again, this time the J-V curve of the bright state is a straight line passing through the origin, which is also a scene she is familiar with...

In this situation, the senior sister seems to be dreaming back to Boyi.

"I'll try another point." After Yang Qin finished speaking, he changed another point to test again, and the result was a short circuit again.

Yang Qin explained weakly: "This batch of devices may not be scraped well."

"Then get a good one, the one that was tested before is fine." Lan He almost laughed angrily at him.

If Xu Qiu and the others did not come to visit, but to buy the instrument, they would probably run away immediately after seeing such a result. If the conditions are not well optimized, it is definitely impossible for the produced instrument to be bought by someone. of.

Of course, Xu Qiu and the others came here today mainly to offer suggestions, and it's okay to expose the problem.

Yang Qin took out another soft piece from a lock box next to it and started testing.

In this result, the J-V curve of the bright state is slightly uneven, but the overall trend of "flattening and then rising" is still no problem. The final device efficiency is 3.11%, and the device area is 0.02 square centimeters.

Yang Qin turned his head to look at Lan He, saw Lan He nodding towards him, so he began to explain: "The system we use is PCE10:PC[70]BM, and the highest efficiency of scraping is about 4% at present. Left and right, and the data is very unstable, on the one hand, there are often short circuits and open circuits, on the other hand, the stability is also poor, even if it is stored in a nitrogen glove box, the efficiency will basically decrease by half after a week."

After Yang Qin finished speaking, everyone turned their attention to Xu Qiu, as if they wanted to hear his opinion.

Xu Qiu is very familiar with spin coating, but his understanding of scrape coating is limited to the literature. He only knows that the operation method of scrape coating is to drop the solution on a corner of the substrate first, and then spread the solution evenly on the substrate by moving the scraper. On the surface of the chip, it is mainly used to coat relatively large devices, such as 10 cm * 10 cm, or even 1 meter * 1 meter. Because of such a large area, spin coating must not be unscrewed.

"Hmm..." Xu Qiu thought for a moment, and did not jump to a conclusion, but said, "I want to see how your device is prepared first."

"Yes," Lan He immediately agreed: "Yang Qin, take them to visit our laboratory and make a batch of devices on the spot. I'll go back to the office first. Call me if you have anything to do."

"Okay." Yang Qin came out of the glove box, directed the other two bystanders to help test the remaining devices, and then acted as a tour guide himself.

The floor area is indeed large: there is a boss's office; a large office with eight desks, five of which are now occupied; a utility room; a public toilet; A glove box device laboratory; an equipment processing laboratory, which has a 3D printer, a cutting and welding device, and some basic characterization equipment; and a similar organic laboratory, which has three fume hoods, one of which is ventilated Inside the cupboard was an instrument without a case.

It can be seen that the instruments, equipment, and reagents used by Blue River Company are relatively new and expensive, and the investment is estimated to exceed two to three million yuan.

For example, the four glove boxes are all imported from the beautiful country, adding up to 100W+.

For another example, the PCE10 they use is also imported from Europe. It costs more than 4,000 euros per gram, which is nearly 30,000 yuan per gram. Wei Xingsi’s group bought it from Shencheng Optoelectronics Company. The domestic PCE10 costs about 10,000 yuan per gram.

"The banknote ability is still fierce." Xu Qiu couldn't help but sigh with emotion.

Then, by the way, he copied all these instruments, equipment, reagents, etc. into the simulated laboratory.

No reason, just want to see if Blue River's money is worth it.

PS: A new month is coming, and the 4D is updated at the beginning of the month. Please ask for monthly tickets and recommended tickets~