Chapter 248 You finally learned to read literature
At 9 a.m., the labs of forty-three.
Diamond p-type doping and n-type doping experiments have officially begun.
Chen Zhou and Shen Jing watched and studied.
Standing next to the two was Dr. Wu.
It is naturally impossible for Dr. Wu to start with it himself. The entire 10th group experiment was led by Peng Fei and Pan Shiyan.
Peng Fei is responsible for the experiment of n-type doping, while Pan Shiyan is responsible for the experiment of p-type doping.
Looking at Chen Zhou beside him, Dr. Wu asked softly: "What is the matter about the film preparation process? Do you have any clues?"
Chen Zhou nodded first, but then shook his head: "I just have a simple idea."
Dr. Wu was slightly stunned and then said, "This is a good thing. I have already made up my mind in just one day. It seems that we should really be interested in Yan Da’s people as soon as possible."
Hearing Dr. Wu's words, Chen Zhou smiled embarrassedly, but didn't explain anything.
But others didn't think so, and Pan Shiyan looked at her mentor with a little taste.
Hu Hengsheng, the person in charge of the diamond film preparation process, looked at Dr. Wu and Chen Zhou with a meaningful look.
Chen Zhou remembered what Peng Fei said during the morning meal and asked, "Dr. Wu, I heard from Mr. Peng that this is the 10th group of experiments?"
Dr. Wu naturally knew what Chen Zhou was asking. She explained: "It is indeed the 10th group. Today, the experiment ends, and I will copy all the experimental data to you. Considering that you are also the first time you are exposed to research topics in semiconductor materials.
, so I preprocessed the data.”
"Thank you, Dr. Wu." Chen Zhou was not surprised. Dr. Wu's consideration was very thorough.
At this moment, the experiment was steadily going on between the two of them.
For p-type doping of diamonds, Forty-San uses the currently popular boron element for doping.
P-type doped semiconductor diamond single crystal is the first choice for the preparation of high-temperature and high-power semiconductor components.
It has broad application prospects in the fields of electronics, nuclear energy and aerospace.
Speaking of which, boron-doped diamond is also used in the preparation of diodes.
In terms of performance, it is better than ordinary diodes.
Not to mention the distant, the diodes used in the particle accelerator experiment that Chen Zhou participated in were made of boron-doped diamond.
In an instant, Chen Zhou figured out something.
The phrase "special attention" in the hidden mission.
[Special note: You have touched on multi-disciplinary cross-tasks, please be good at thinking and summarizing!]
"Is this the meaning of multidisciplinary intersection?" Chen Zhou was thinking about this sentence secretly.
The only thing that is related to the two experimental topics is diodes.
The diamond doping experiment in front of you is to better improve performance and prepare good semiconductor materials and devices.
The particle accelerator experiment even studies the principle of strong pulsed high-power particle beams by replacing diodes.
Diodes are the top priority.
After thinking about this, Chen Zhou's eyes suddenly became brighter.
He had a vague guess, that is, the multi-disciplinary cross-tasks will be intertwined and each topic he encountered may be intertwined.
Finally, it leads to a...
"future?"
Somehow, this word popped into Chen Zhou's mind.
He was also caught by this word at once.
Think about the hidden task of diamond semiconductor materials, which is called "changes that determine future."
Combined with the task of particle accelerator experiments, it is called "experiment is an important means to mine unknowns."
Adding the description of two tasks, won’t it point to the future?
"Can't it..."
Chen Zhou had another layer of guesswork in his mind.
Chen Zhou shook his head slightly, withdrew his thoughts and stopped thinking about it.
This illusory guess is actually not very meaningful.
Because things like the future will always be in the hands of the present.
Only what decision he makes now will this decision affect what future will it affect.
For example, when Chen Zhou chose to repeat the exam, the choice means change, and this change directly affects him now.
If he had not repeated the school, he would not have been in Yan University, nor in Forty-three.
Similarly, the current topics he is in Forty-Three Institutes are likely to affect something in the future.
Therefore, it is useless for Chen Zhou to think more now, just do it now.
"... Diamond is a group 4 element, and its crystal structure can be regarded as being composed of two face-centered cubic structures that translate 1/4 set along the diagonal line of the body." Dr. Wu patiently explained to Chen Jing.
Chen Jing nodded and thoughtfully said: "The lattice constant of diamond seems to be 0.3567nm, the length of c-c bond is 0.154nm, and the bond angle is 109°28'. The carbon atoms in it are sp3 hybrid orbitals and The tetrahedral structure formed by the adjacent four carbon atoms is covalently bonded."
"Yes, because of this, we can achieve p-type and n-type doping by adding appropriate elements into diamonds, thereby improving electrical properties, so that it can be widely used in electrical devices as semiconductor materials." Dr. Wu Showing an admiring look, looking at Chen Jing.
She didn't expect that except for Chen Zhou, this person named Chen Jing seemed to be good.
Only those who are willing to spend time on the topic and understand the topic can truly do the topic well.
Chen Zhou looked at the two people in front of him and couldn't help but smile.
This senior, after he went back last night, he put a lot of effort into it.
"Well, Dr. Wu, I read the literature that natural diamonds containing impurities generally exhibit p-type conductivity?" Chen Jing saw the encouragement in Dr. Wu's eyes. The literature I read last night came in handy in an instant.
"Yes, natural diamonds containing impurities will exhibit p-type conductive properties, but there is no n-type conductive natural diamond. Because the defects of natural diamonds will compensate for carriers, causing the impurity elements involved to be effectively activated. It is also the reason why n-type doping of diamond is very difficult."
Dr. Wu said, pointing to the experimental device in front of him, which was another MPCVD deposition device, and continued: "Among all body impurities, the currently recognized effective p-type impurities are boron, and n-type impurities are phosphorus, and doped The experimental method is the microwave plasma cvd technology for preparing diamond films, which is the mpcvd method."
After hearing Dr. Wu's words, Chen Jing suddenly realized. He said why the experiment in front of him was the same as the experimental device for preparing diamond films I saw yesterday?
It turns out that these two are similar sets of equipment.
Thinking of this, he thought of the topic that Chen Zhou took on. Could it be that this guy came for the experiment?
Chen Zhou looked at Chen Jing who suddenly looked at him, and didn't understand what he meant for a moment.
Chen Jing blinked at him, as if he was saying, "You have known that these two processes are the same for a long time. In fact, you proposed to improve the preparation process to prepare for the improvement of the doping experiment..."
Of course, Chen Zhou still didn't understand Chen Jing's meaning.
Chapter completed!