Volume 1: Student Life Chapter 250: Time is Short
There are currently 9 sets of experimental data.
According to the current experimental progress, after the co-doping experiment is completed tomorrow, the 10th set of data will not be sorted out until at least the morning of the day after tomorrow.
In other words, Chen Zhou and Shen Jing currently have about two days to process the nine sets of data on hand.
Based on this time, Chen Zhou roughly sorted out his and Shen Jing's work arrangements.
Looking at the plan written on the draft paper, Chen Zhou frowned slightly.
"This won't work. If we delay it any longer, and wait for experimental verification and then adjust the experimental direction, it will take too much time..."
Chen Zhou obviously didn't have that much time.
Not to mention the half-month deadline for the hidden mission, Chen Zhou himself limited himself to one week.
"It seems that I need to seek more help..."
Thinking of this, he sent another message to Zhang Yifan, asking Zhang Yifan to help find more relevant data on diamond doping experiments.
Through the last experience of reversing the particle accelerator experimental data, Chen Zhou deeply realized how important it is to stand on the shoulders of "giants".
Of course, the giant here refers to the huge amount of literature.
Zhang Yifan replied with an “OK” expression.
Seeing this expression, Chen Zhou smiled slightly.
Before leaving, you must arrange a big meal to reward yourself!
Chen Zhou opened the chat box with Yang Yiyi again and sent a message.
[Yiyi, are you busy with Dean Yang's experiments recently? ]
Not long after, Yang Yiyi replied to the message.
[Not busy. Now Senior Sister Peng Jia and her friends have adopted our method and have shared the work.]
After reading the message, before Chen Zhou had time to reply, Yang Yiyi sent another message.
[What? Do you need my help? Happy? ]
Chen Zhou smiled and clicked the phone screen, returning to:
【Maybe you will stay up late with me. 】
As soon as the message was sent, Yang Yiyi replied.
[It's okay, we can both endure it together, so that one of us won't have to worry about the other. Can you send me the information? ]
[Still in the No. 43 Institute. I will send it to you when I get back tonight.]
【good.】
Yang Yiyi successfully joined, and Chen Zhou’s small team was upgraded to a four-person team.
Putting away his phone, Chen Zhou smiled and basically made all the arrangements.
Then, he looked at Shen Jing: "Senior, let's split it 60-30?"
Shen Jing looked at Chen Zhou in surprise: "Can you handle it?"
Chen Zhou was slightly stunned, then he chuckled and said, "You have six, I have three."
"Uh..." Shen Jing was confused.
He originally thought that Chen Zhou was going to handle these two-thirds of the data himself, but he did not expect that he would be asked to take charge of it.
Chen Zhou did not explain too much, but just said: "Senior, how is it?"
Shen Jing looked at Chen Zhou and nodded slowly.
"Okay, believe me, we can go back earlier." Chen Zhou said casually and began to write the plan on the draft paper.
Hearing this, Shen Jing thought about it and immediately understood what Chen Zhou meant.
Although he was asked to be responsible for two-thirds of the data analysis, in reality, Chen Zhou might have to do much more work than he did.
Thinking of this, Shen Jing shifted his gaze to the computer screen in front of him and began to work.
He still wanted to help Chen Zhou share more of the burden.
Otherwise, when you return to Yanda, Wu Xiping will ask you, what have you done?
How could he say that...
Responsible for the analysis of only three sets of data, Chen Zhou's pressure in his current job was suddenly reduced.
In this way, he can save time and try to get these three sets of data this afternoon.
Then we start to analyze the experiment as a whole and make adjustments to the current topic with the help of experimental data from other literature.
In addition, Chen Zhou has another reason for making such an arrangement.
That is Dr. Wu’s preliminary processing of the data, which is very useful for reference.
This also provides Chen Zhou with more options.
If there are 9 sets of original data, then the 6:3 split might be Chen Zhouliu and Shen Jingsan.
Start with p-type doping.
Statistical analysis of data was performed on factors affecting the preparation of boron-doped diamond, such as boron doping concentration and substrate crystal plane.
Because the boron source selected for all 9 sets of data is B(CH3)3, there is no need to consider the influence of the boron source in this experiment.
Chen Zhou was completely immersed in the intense data analysis.
Perhaps because he knew that time was very tight, Chen Zhou's movements were much faster than usual.
Whether it's the speed of typing on the keyboard or taking notes with a pen on a draft paper.
Chen Zhou tried his best to keep up with the pace of the earth's rotation.
After finishing the experimental data of p-type doping, Chen Zhou began to process the data of n-type doping experiment.
N-type doping, that is, phosphorus doping.
In addition to considering the basic influencing factors such as phosphorus doping concentration, substrate crystal surface, and temperature, which are the same as p-type doping.
There is one more point to consider.
That is the electron scattering mechanism of phosphorus-doped diamond, which also affects the migration efficiency.
The electron scattering mechanism in diamond semiconductors is related to internal acoustic phonons, intervalley phonons, ionic impurities and neutral impurities.
At room temperature, when the phosphorus doping concentration exceeds 1×10^18/cm3, impurity scattering or defect state scattering plays a major role.
When the phosphorus doping concentration is lower than this concentration, the impurity ionization scattering turns into acoustic phonon scattering.
Of course, this simple judgment is not sufficient.
Because phosphorus doping itself will also introduce other scattering.
Scattering caused by internal stress due to bond length mismatch of phosphorus-carbon covalent bonds.
In addition, the main scattering mechanism is different in different temperature ranges.
Under low temperature conditions, acoustic phonon scattering is the main scattering mechanism.
At high temperatures, electrons are affected by both acoustic phonon scattering and valley phonon scattering.
Fortunately, Chen Zhou had previously confirmed with Peng Fei that the phosphorus doping concentration should be selected in the range of 4×10^15/cm3 to 2×10^15/cm3.
Based on the experimental data at hand, it is not difficult to determine the main factors of the scattering mechanism.
After the n-type doping data is completed, the co-doping data is left.
Co-doping is also n-type doping. After gaining experience, Chen Zhou found it much easier to handle.
Soon, the co-doping experimental data processing was completed.
In this way, a set of experimental data comes to an end.
Chen Zhou looked at the time and it took nearly two hours.
It’s still acceptable. After all, it’s always a little slower for the first time.
Next, it should be soon.
Without stopping, Chen Zhou began to process and analyze the experimental data of Group 2 and Group 3.
Once a plan is made, its necessity can only be proven by its completion.
Time slipped quietly between Chen Zhou's fingers.
The ever-growing documents on the computer and the stacked draft papers show Chen Zhou's work results.
At exactly six o'clock in the afternoon, Chen Zhou typed the last paragraph on his computer.
As planned, all three sets of data were processed in one afternoon.
Chen Zhou saved the information and prepared to get up to check on Shen Jing's progress.
And stretch your muscles while you're at it.
After sitting in front of the computer working for the whole afternoon, Chen Zhou felt his whole body was a little stiff.
Fortunately, Chen Zhou has become accustomed to this working mode and does not feel very tired.
However, he secretly sighed: "Thanks to the system's reminder, I need to develop good living habits. Otherwise, if I continue to do so for a long time, I may have health problems ."
Just as Chen Zhou walked towards Shen Jing, Peng Fei and Pan Shiyan came to their small office.
The moment he saw Peng Fei, Chen Zhou suddenly remembered what he had said before.
