Chapter 388 The King among Physics Celebrities (Third update, please subscribe)
While Jiangdong and his classmates were sweating and playing football on the playground, in other parts of the school, some people were in the library Reading, some people are catching up on homework, and some are obsessed with research.
In short, at this time, Kuching University is like all universities in Nanyang. Although it is the weekend, everyone is busy, and the same is true for sports. A better body is for better research.
At about five o'clock in the evening, it suddenly started to rain.
Actually, the rain is not sudden at all. After all, it is the rainy season, and sunshine is an accident.
The sultry weather immediately became much cooler, but the rain was also very annoying. After all, everyone knew that it had entered the rainy season, and once it started raining, it might not stop.
Although it started to rain, the temperature was not low, and the indoor temperature was not low either. The mercury column on the thermometer was still stable at 32 degrees, and the weather was still very hot.
After working in the warehouse for a day, Chen Shuzhe felt a little tired, but still had no intention of taking a rest. When he stared at the equipment in the warehouse, his eyes became a little excited.
Last year, after Li Yi'an proposed the semiconductor "PN junction", how to transform the theory into reality and successfully develop a "PN junction transistor" has become the focus of research by scientists from various countries. During this period, scientists proposed various feasible methods. The most important achievement was the idea of "single crystal", which sparked people's thinking.
It also inspired Chen Shuzhe. He boldly proposed an idea - a semiconductor "single crystal". He believed that it was necessary to create a large "germanium single crystal" before it was possible to conduct P junction or Doping of N junction.
The next step was to manufacture the corresponding equipment. Although his concept did not receive support from the outside world, as a lecturer in the Department of Chemical Engineering at the University of Kuching, he jointly designed and manufactured it with the help of two colleagues from the Department of Mechanical Engineering. A simple piece of equipment capable of growing crystals. This piece of equipment uses a simple machine made of a large rolling door drive device and an induction coil. Although it sounds simple, this piece of equipment is enough to be recorded in human civilization. History, its emergence will change everything.
“Continuous straight pulling method,”
Lighting up a cigarette and taking a long puff, Chen Shuzhe said.
“This is the Polish scientist Jan Tchaikolaski. He invented this method when he was studying the crystallization rate of metals in 1916. However, this method has not been taken seriously by the outside world. I think using this It’s absolutely possible to pull out a germanium single crystal.”
“Teacher Chen, as long as you decide, let’s start.”
Lin Shudong and Wen Qianyi laughed at the side.
They are university colleagues and also university alumni. They both graduated from Southwest Associated University. After joining the search team 4 years ago, they were sent to study in the United States. After arriving in Nanyang, they were assigned to Kuching University. The relationship between alumni and comrades is naturally far greater than that of other people, which is why they help the Czochralski equipment they research without any complaints.
After taking a strong puff of cigarette, Chen Shuzhe and the others got busy. They connected the power supply and the graphite resistor to start heating, melting the polycrystalline germanium in the high-purity quartz crucible, and then inserted the seed crystal into the melt. The surface is welded, and a rod with a seed crystal at the end is slowly lowered into the molten germanium. The rod rotates in the counterclockwise direction and the crucible rotates in the clockwise direction. Then, the rotating rod is lifted upward very slowly, so that a nearly cylindrical germanium crystal rod can be formed below. By continuing to pull...and then slowly, slowly "pull it out," you end up with a long, narrow germanium single crystal.
When the germanium single crystal was pulled out, Chen Shuzhe and the others had full smiles on their faces.
“Yes, successful!”
There was no ecstasy as imagined, only a faint sense of relief, as if this moment was a matter of course.
There was no sudden inspiration, only eleven months of hard work and dedication. After putting in too much sweat, finally, at the end of 48 years, they pulled off the world’s first A germanium single crystal.
After the formation of the single crystal, there were rave reviews for Chen Zheshu and others. All kinds of admiration are like the endless flow of the river, and like the Yellow River flooding out of control.
After the successful production of germanium single crystal, the development of PN crystal transistor was like taking something from a bag. A goal that was once out of reach seemed to be right in front of us and became within reach. Xiao Guangchi, a chemist at Changhong Radio Laboratory, took the lead in adopting Chen Zheshu's method for the first time. By dropping tiny impurity particles into molten germanium during the crystal growth process, a very crude P-N junction was finally formed, which was also the world's first a PN junction.
Unlike in 1947, when he learned about the invention of the transistor after a few months, this time, Li Yian learned about the news immediately. After all, this meant that his theory became a reality.
For a time, physicists from all over the world sent congratulatory messages to Li Yian without hesitation. Once upon a time, the concept of PN junction was not far away from the "king's fantasy" in the eyes of many people.
Now, it has finally been confirmed.
For a time, the admiration for Li Yi'an, a great physicist, from all walks of life was like an endless stream of water, or like the Yellow River flooding out of control. In short, once upon a time, he was a king, and now, he is a great physicist with the title of king. Although at this time, everyone does not know how the PN junction transistor will change the world, but the icing on the cake is that everyone is familiar with it.
Facing the compliments from the outside world, Li Yi'an seemed very calm. While congratulating Chen Shuzhe, Xiao Guangchi and others through the spokesman, he left the presidential palace.
Although he was very excited in his heart, he seemed to have accepted this surprise now.
They made an appointment with Yuan Jialiu to meet at the reservoir near Science City. When Yuan Jialiu met Li Yi'an, he was fishing by the lake. He looked... not like a physicist at all.
"Fishing is a very interesting thing!"
Hearing the footsteps, Li Yian said without looking back, his eyes always looking at the slightly rippled water,
“This reservoir is stocked with carp and grass carp that are not found in Borneo. The carp that I ate in the restaurant in Chang’an is only found in this reservoir.”
“I don’t know about this. ”
Yuan Jialiu sat next to him, picked up the fishing rod and said,
"I thought it existed here originally? I didn't expect that like the tiger, it was introduced from Tangshan."
"It's the South China tiger. "Li Yian fixed the fishing rod, he stood up and moved his shoulders,
"The South China tiger is a tiger species unique to Tangshan. Well, I came from Hunan, Guangdong and Fujian provinces. , 137 were introduced there and released in several nature reserves. They are no different from the local animals and have taken root here, just like us. Oh, by the way, we are still in Capua. Fifty-six Baiji dolphins have been released into the Si River and Barito River, and now they have begun to breed..."
When mentioning these wild animals that disappeared in another world, Li Yian looked quite proud.
These animals are all species unique to China, but they have become extinct due to various reasons. In order to make up for some regrets, while introducing immigrants, Li Yian also introduced these animals that would become extinct, and even introduced the Yangtze White Sturgeon, but the breeding of the latter is limited by temperature, migration and other reasons, and is not very successful. However, zoologists have still found ways to artificially breed them in plateau rivers.
In the future, perhaps one day, they will return to that land and continue to thrive in that land where they have lived for hundreds of millions.
After a pause, Yuan Jialiu expressed his congratulations directly to Li Yian.
"Thank you, actually..."
Li Yian smiled.
“Compared to my theory, what I care more about is our people realizing it.”
“Indeed, it is our people who realize it, which is not easy.”
Yuan Jialiu naturally understood the meaning of his words. It is better for our own people to realize this theory than for outsiders to realize it first.
“We are now catching up with European and American countries in various fields, including semiconductors. The whole world is on the same starting line. As long as we seize the opportunity, we still have great hope of leading the world.”
The surprise at Kuching University made Li Yi'an think a lot. Even coming to fish is to calm down and think about some things, such as how to guide the next step?
How to achieve the development of 1+1 greater than 2?
No answer yet.
However, he turned to look at Yuan Jialiu and said.
“How are you, are you adapting to the research institute?”
After Yuan Jialiu and his wife came to Nanyang, they entered the Institute of Physics and continued to engage in physics research and teaching.
"There is nothing uncomfortable about it. I just engage in physics research as before. The environment is much better than in the United States. At least, this is my home."
"Home", for people like For overseas wanderers like Yuan Jialiu, "home" is a very special existence. No matter how good the United States is, it has never been his home, but Nanyang is their home in a certain sense.
"Home..."
Nodding slightly, Li Yian said,
"There is one thing I need to tell you in advance... We are going to develop an atomic bomb."
Yuan Jialiu almost blurted out,
"Does Jianxiong need to participate?"
Clicked Nodding, Li Yian said.
“After the plan is launched, my sister-in-law may need to leave the Science City temporarily.”
After taking a deep look at Li Yian, Yuan Jialiu thought for a while and said,
"Maybe... I can also help."
As a physicist, Yuan Jialiu It can indeed help, Li Yian, who had already expected this answer, said.
"The research on atomic bombs is of great importance. We will conduct research in this area in a completely closed environment. At that time, it may affect your academic achievements."
This It was a reminder between friends. Yuan Jialiu frowned, his face seemed a little unhappy because of this reminder.
Yuan Jialiu glanced at the lake that suddenly became rippled.
“A fish has taken the bait!”
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(End of this chapter)