Civilization Template

Chapter 89

Back in the library, Qu Yanqiu and Chen Quan were helpless.

"What should we do now?"

Since the memories were all in Chen Quan's head, even if Qu Yanqiu wanted to help, he could do nothing.Not to mention, without the help of external memories, Qu Yanqiu couldn't even look up information and compare images.

"Um"

Chen Quan closed his eyes and searched carefully in his memory. "Maybe we can change our thinking. There is no need to hang yourself with a rope."

"Oh? What do you remember?"

Qu Yanqiu, who had given up hope, saw a bright light in his eyes. "Is it something you saw in the inspection professional warehouse last time? Just went to Senior Sister Zhao's place, what reminded you?"

"It's not those things that detect professional."

Chen Quan was still hesitating. "I still don't know whether this information counts or not."

"What do you mean? If you found it, you found it. If you didn't find it, you didn't find it. Why is there still a saying?"

"It's like this. From the information 'recalled' in the microelectronics laboratory this morning, apart from these strange structures, there is also a very vague memory. And the things involved in this memory, I turned the other day. I saw it when I read the book."

"Oh? What is that?"

"It's an LED."

Chen Quan walked to the bookshelf and took out a reference book on semiconductor luminescent materials.

LED has a very early history and has huge applications in many fields.There are not too few relevant Chinese materials.

"LEDs? What are LEDs for?"

Qu Yanqiu was taken aback. "As long as it can be written in books, especially in Chinese textbooks, it has long been thoroughly researched."

"Now the problem is here. The things we are looking for are too new, and we can't find them in this Chinese area. What we find are 100% outdated things."

Chen Quan complained.

"Then who is to blame? Who told you that you can't even remember the name of the project?"

Qu Yanqiu was not in a good mood.

"Alright alright."

Chen Quan raised his hands in surrender. "But the project I'm talking about is not an ordinary LED, but a blue LED."

In Chen Quan's impression, he has seen LEDs in many laboratories, but these LEDs are basically red, and occasionally there are green ones, but he has never seen blue ones.

"Oh really?"

"Of course it's true. But."

"But what?"

"The memory related to the blue LED is incomplete, and some key equipment is missing. It is similar to the situation in the detection profession."

One of the newly "remembered" items is very vague, and the other is incomplete.

"Forget it, never mind. This is the first project we know the name of, let's look it up first."

Qu Yanqiu tossed her hair.

After nearly a week of getting nothing and feeling unable to help, she was very uncomfortable. "I'll fill out the application form and ask the teachers to help us find information."
-
Sure enough, soon, a stack of English periodicals was handed out from the window by the library service staff.

"It's all in English!"

Seeing the relevant documents, Qu Yanqiu was dumbfounded again.

"Yes."

Chen Quan felt dizzy when he looked at these materials.

"Look for yourself. I can't understand these technical English anymore."

Qu Yanqiu simply gave up.

"Ok."

Chen Quan could only bite the bullet, found a few English dictionaries for reference, and began to gnaw hard.

"It's you who borrowed a few blue LED books?"

A thin, middle-aged man came over. When he opened his mouth, his teeth were full of yellow teeth due to frequent smoking.

"you are?"

"I'm Huang Chuxiong. I'm a lecturer in the Department of Materials. Who are you? Why do you want to borrow blue LED materials?"

"I'm Chen Quan. When I was visiting West Germany, I saw blue LEDs, so after I came back, I became interested."

No matter what Chen Quan does, he pushes it to the German laboratory. "But after I came back, I found that there are too few Chinese materials about blue LEDs."

"Cut! Sci-tech journals are all in English, of course."

Huang Huang Chuxiong smiled contemptuously. Even if he didn't smoke, the air he exhaled had a strong smell of smoke. "But you're lucky to have met me!"

"Oh? Teacher?"

"Call me Huang Laoxie. You are not my students anyway."

Huang Chuxiong was nicknamed Huang Laoxie by some acquaintances because of his addiction to smoking.With the popular broadcast of The Legend of the Condor Heroes, Huang Chuxiong was not disgusted with the title of Huang Laoxie. Slowly, he even fell in love with this title.

Huang Chuxiong waved his right hand upwards, his index finger and middle finger were slightly separated, and there was only one cigarette in between. "I just study the direction of LED."

"Oh, nice."

Chen Quan glanced at Qu Yanqiu and saw the same look.

It's Sleepyhead meets Pillow.

"Let me tell you, the history of LEDs appeared very early, in the 50s."

Huang Laoxie assumed a lecture pose.Since school had just started, there were very few people in the periodical room, and there were only the three of them in this corner.

"But the blue LED appeared very late. It was not until 1971 that the blue LED was theoretically confirmed. In 1972, the first LED that could emit blue-violet light was developed by Stanford University. The world's first For blue LEDs, the material used is gallium nitride."

Huang Laoxie was in a good mood looking at the two young people who were listening with gusto.

The direction of LED is not paid much attention in the material department, and even he is not paid much attention by others.

"Although the direction of gallium nitride has been started very early, the research on gallium nitride components has encountered many difficulties and has not been able to make a breakthrough. In August this year, Cree, an American company, launched the world's first commercial Blue LEDs. They’re not using gallium nitride.”

"August, isn't that what happened last month?"

Qu Yanqiu cried out in surprise.

"Correct."

Huang Laoxie nodded proudly. "How else can you say, it's your luck that you met me!"

"You continue."

". But these products have serious flaws. The luminous efficiency of Cree's blue LEDs can't even reach 0.03%. Therefore, many scientific research institutions and scholars are still actively looking for other technological paths that can make breakthroughs.

This is also the fundamental reason why you can see so many papers and journals.Blue LED, can be said to be a blue ocean of papers"

Huang Laoxie is indeed an expert in the field of LEDs. With circumstantial evidence, he introduced well-known companies and scholars in the field of blue LEDs in a clear and refreshing manner.

It's a pity that Chen Quan and his wife were completely indifferent to a lot of names of people and companies, so they could only force themselves and listen to the heavenly scriptures.

"...Among these technical routes, the ZnSe route has the upper hand for the time being. But it is too early to say that the ZnSe route can win the final victory, because the GaN route has also made some milestone progress Japanese scholar Hiroshi Amano just now Made the world's first blue LED with pn junction"

After speaking continuously for nearly half an hour, Huang Laoxie yawned involuntarily, although his addiction to lectures was enough, but his addiction to cigarettes also came up.

"Oh."

Chen Quan listened to the book for a long time, and nodded in agreement.

Although the information introduced by Huang Laoxie is not low in technical content, it is a good introduction for a semi-layman like Chen Quan.

"If you are really interested in this aspect, you can come to me in the field of semiconductor materials."

After Huang Laoxie finished speaking, he was ready to run out to find a place to smoke.

"Semiconductor material major?"

Chen Quan and Qu Yanqiu looked at each other. "Does our school still have a major in semiconductors?"

"Yes, we are professional! What's wrong?"

Huang Laoxie turned around strangely.

"Then, Mr. Huang, I drew something, do you know it?"

Chen Quan took out a piece of paper from his schoolbag.

"This is not MEMS!"
-
on the playground,
Accompanied by the sound of whistles, a row of four freshmen, lying on the ground, crawled forward one after another.

The freshman on the far left has a wound that is still expanding due to constant friction.

Behind him, with the continuous raising and lowering of his arms, blood spots were left one after another on the sand.

　The arm injury is based on real events.

　　
　
(End of this chapter)