9 a.m., the laboratories of the Forty-Three.

The diamond p-type doping and n-type doping experiments were officially started.

Chen Zhou and Shen Jing watched and studied.

Standing next to the two was Dr. Wu.

Naturally, Dr. Wu could not have done it himself, and the entire experiment of Group 10 was carried out by Peng Fei and Pan Shiyan.

Peng Fei was responsible for the experiment of n-type doping, and Pan Shiyan was responsible for the experiment of p-type doping.

Glancing at Chen Zhou beside him, Dr. Wu asked softly, "Do you have a clue about the film preparation process?"

Chen Zhou nodded first, but then shook his head again: "It's just a simple idea." ”

Dr. Wu was slightly stunned, and then said: "This is a good thing, we already have a clue after only one day, it seems that we should really talk to Yan Da as soon as possible." ”

Hearing Dr. Wu's words, Chen Zhou smiled embarrassedly, but he didn't explain anything.

But others didn't think so, and Pan Shiyan glanced at her mentor with a little surprise.

And 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, so he asked, "Dr. Wu, I heard Peng Gong say that this is the 10th group of experiments?"

Dr. Wu naturally knew what Chen Zhou was asking, and she explained: "It is indeed the 10th group, and I will copy all the experimental data to you after the experiment is over today." Considering that this is also the first time you have come into contact with the research topic of semiconductor materials, I have preprocessed the data. ”

"Thank you, Dr. Wu. "Chen Zhou, this is not surprising, Dr. Wu is very thoughtful.

At this moment, the experiment is steadily progressing between the two of them.

For the p-type doping of diamond, the 43rd Institute uses boron for doping, which is currently more popular.

P-type doped semiconductor diamond single crystal is the preferred material for the preparation of high-temperature and high-power semiconductor components.

It has broad application prospects in electronics, nuclear energy and aerospace and other fields.

Speaking of which, boron-doped diamond is also used in the preparation of diodes.

In terms of performance, it is superior to ordinary diodes.

Not to mention, the diodes used in the particle accelerator experiments that Chen Zhou participated in were prepared with boron-doped diamonds.

In an instant, Chen Zhou understood a sentence.

Hide the phrase "pay special attention" in the mission.

[Special note: you have touched on the multidisciplinary interdisciplinary task, please be good at thinking and summarizing!]

"Is this what it means to be multidisciplinary?" Chen Zhou secretly pondered.

The only connection between the two experimental topics is the diode.

The current diamond doping experiment is to better improve the performance and prepare good semiconductor materials and devices.

The particle accelerator experiment is to study the principle of strong pulse and high-power particle beam by replacing the diode.

Diodes are a top priority.

Thinking of this, Chen Zhou's eyes instantly brightened.

He had a vague guess, that is, the future multidisciplinary interdisciplinary tasks would not be able to intersect and unite every topic he encountered.

Eventually lead to a ......

"Future?"

Somehow, this word popped into Chen Zhou's mind.

He was also immediately caught by the word.

Think of the hidden task of diamond semiconductor materials, called "Determining the Future of Change".

Combined with the task of particle accelerator experiments, it is called "experiments are an important means to explore the unknown".

Coupled with the description of the two tasks, doesn't it point to the future?

"Is it ......?"

Chen Zhou had another layer of speculation in his heart.

Chen Zhou shook his head slightly, retracted his thoughts, and didn't think about it anymore.

This kind of vague speculation is actually of little significance.

Because the future is always in the hands of the present.

Only what decision he makes now will affect what will happen in the future.

For example, if Chen Zhou chooses to repeat his studies, choice means change, and this change directly affects him now.

If he hadn't repeated, he wouldn't have been in Yan University, nor would he have been in Forty-Three.

In the same way, the topics he is doing in the 43rd Institute now are likely to affect something in the future.

Therefore, it is useless for Chen Zhou to think too much now, just do it now.

“...... Diamond is a group IV element, and its crystal structure can be seen as composed of two face-centered cubic structures translating 1/4 set diagonally along the body. Dr. Wu patiently explained to Shen Jing.

Shen Jing nodded, thought about it and said: "The lattice constant of diamond seems to be 0.3567nm, the C-C bond length is 0.154nm, and the bond angle is 109°28′. The carbon atom is a tetrahedral structure formed by the covalent bond of the sp3 hybrid orbital and the adjacent four carbon atoms. ”

"Yes, because of this, we can achieve p- and n-type doping by adding the right elements to the diamond, which can improve the electrical properties and make it widely used as a semiconductor material in electrical devices. Dr. Wu looked at Shen Jing with an appreciative look.

She didn't expect that in addition to Chen Zhou, this one named Shen Jing seemed to be good.

In this way, people who are willing to devote time to the project and understand the subject can really do the project well.

Chen Zhou looked at the two people in front of him and couldn't help but smile.

This senior, after going back last night, didn't put in a lot of effort.

"That, Dr. Wu, I read that the literature says that natural diamonds containing impurities generally exhibit p-type conductive properties?" Shen Jing saw the encouragement in Dr. Wu's eyes, and the literature he read last night instantly came in handy.

"Yes, natural diamonds with impurities exhibit p-type conductive properties, but there are no n-type conductive natural diamonds. Because the defects of natural diamond will compensate for the carriers, so that the incorporated impurity elements cannot be effectively activated. This is also the reason why n-type doping of diamonds is very difficult. ”

Dr. Wu said and pointed to the experimental device in front of him, which was another MPCVD deposition device, and continued: "Among all the body impurities, the currently recognized effective p-type impurities are boron, n-type impurities are phosphorus, and the doping experimental method is the microwave plasma CVD technology for the preparation of diamond films, that is, the MPCVD method. ”

Hearing Dr. Wu's words, Shen Jing suddenly realized, he said, why is this thing doing experiments in front of him the same as the experimental device for preparing diamond thin films he saw yesterday?

These two are similar sets of equipment.

Thinking of this, he thought of the subject that Chen Zhou had taken over, could it be that this guy came for the doping experiment?

Chen Zhou looked at Shen Jing who suddenly looked at him strangely, and didn't understand what he meant for a while.

Shen Jing still winked at him, as if to say, it turns out that you have long known that these two processes are the same, in fact, you proposed to improve the preparation process in preparation for improving the doping experiment......

Of course, Chen Zhou still didn't understand what Shen Jing meant.

If he understood, Chen Zhou would probably say: "Senior, you have finally learned to read literature!!