They’re all reborn, what’s wrong with being a little more almighty?

Chapter 30 High-end scientific research must be subtle
Graphene is a single layer of carbon atoms, so it is a two-dimensional crystal. It is also because of this structure that in the Raman spectrum, the G peak of graphene shows a sharp symmetrical shape, showing a perfect single Lorentz peak shape.

If it is not a single-layer structure, the wave structure will be affected, showing a certain undulating state, and the perfect single Lorentz peak shape will not appear.

It can be said that the single Lorentz peak spectrum is important evidence that this is a single layer of graphene.

Now in the spectrum of this sample, a perfect single Lorentz peak appears, which means that part of the graphite in the sample is single-layer graphene.

For experiments, even a little bit of graphene is enough. This is enough to prove that graphene can exist alone in nature, and it also proves that graphene can be extracted!
Zhang Wei took out a Coke from the refrigerator and took a big gulp. The carbon dioxide in the Coke went straight into his nose, and it was a bittersweet taste.

At this moment, Zhang Wei only felt that the pressure on his shoulders had been reduced by more than half in vain!

Spending money on scientific research is still very stressful for Zhang Wei!

Three scholarships, plus the 200,000 earned from the stock market, amounted to a full 900,000. With the housing prices at that time, I could buy a nice three-bedroom apartment in the third ring road of Beijing.

With so much money spent, if the scientific research fails, Zhang Wei will be back before liberation overnight.

At that time, Zhang Wei really needs to consider whether he should use the quota for changing majors to learn computer science. In the future, with a diploma from Tsinghua University, he can work as a programmer in a major Internet company.

Fortunately, two months of hard work tearing off the tape was not in vain, and Zhang Wei successfully extracted graphene.

This is a scientific research achievement that is 100% guaranteed to win the Nobel Prize. For this achievement, it is considered safe for the rest of this life. Even if you are not elected as an academician in the future, you will still gain fame and fortune, and you will still be able to hang it on the school wall after you burp. The kind on.

After pouring a can of Coke into his stomach, Zhang Wei picked up the paper "Electric Field Effect of Atomic-Level Thin Carbon Films" and read it word for word again.

Zhang Wei does not plan to make any major changes to the content of this paper. He just plans to replace the experimental process and related data with his own.

The term "atomically thin carbon film" is used in the paper instead of graphene because in Western scientific applications, the term "graphene" does not only refer to a single-layer graphite structure.

The word "graphene" was first proposed by French scientists. Before that, graphene was called "single-layer graphite".

But in the field of applied science, the word "graphene" can also be used to describe the graphite structure with more than ten layers. The specific analysis should be based on context and content.

Science is rigorous, so as reflected in the paper, it cannot be generally called "graphene", but must be described as "atomically thin carbon film".

The core selling point of "The Electric Field Effect of Atomic-Level Thin Carbon Films" is of course the successful extraction of graphene. In addition, there is a relatively irrelevant point, which is the electric field effect of graphene.

Compared with the great discovery of the century such as the extraction of graphene, the electric field effect is indeed difficult to attract much attention, but if you want to publish a paper in journals such as "Nature", "Science", and "Cell", you must There has to be this part.

This is a top academic journal, not a middle school experimental class. If you just hand out a hand-tearable tape, can it be called scientific research? Is it worthy of being recognized by top academic journals?
No matter what, I have to show the world that I am doing scientific research, not just to obtain this new material. I do all this for the development and progress of human science, not for fame!
This is like two barrels of oil employees going to explore new oil wells. Who is not doing it to support their families? The conditions are difficult, but the bonuses are generous! Make money, not shabby. But if you say to the outside world that you are here for money, then your ideological awareness will be low and the pattern will be gone.

You want to say, I dedicate oil to the motherland!
Therefore, this paper that successfully extracts graphene needs to be combined with some research on electric field effects, so as to achieve the effect of being a bitch setting up a memorial arch.

Looking at the title "Electric Field Effect of Atomicly Thin Carbon Films", people who don't understand it think it is an ordinary paper studying the electric field effect of matter.

Those who understand can instantly understand that there is an outstanding person who successfully made graphene, and the greatest scientific breakthrough of the 21st century was born!

Scientists who show off are very reserved. Those who are arrogant from the beginning and say that I am the best in the universe will most likely not become popular, and many of them are even academic fraud.

For example, the room-temperature superconductor developed by the largest country in the universe, the title of the paper is simply "The First Room-Temperature and Normal-Pressure Superconductor", for fear that others will not know that you are the first.

As a result, this paper was only published on the arXiv website, which is a paper preprint website, and the content on it was not formally reviewed and edited.

The so-called "without formal review and editing" means that it can be wrong, false, or bragging!
To put it another way, if room-temperature superconductivity is really achieved, "Nature" and "Science" won't publish it casually, so why go to a preprint website to post about it?
In the high-end scientific world, if you don’t dare to show off implicitly, you are most likely feeling guilty!
……

Next, what Zhang Wei has to do is to complete the experiment on the electric field effect of graphene and complete the implicit puzzle piece in the paper.

Experimenting with the electric field effect of matter is very simple. Just find a capacitor, borrow a voltmeter, connect the power supply, and let’s start!
But what Zhang Wei wants to do is the electric field effect experiment of graphene, so observing the experimental results and recording the experimental data have become the biggest difficulties.

Graphene is a layer of atoms, which means that to do this experiment, you need equipment that can observe atoms.

Thinking of this, Zhang Wei couldn't help but look at his electron microscope.

This is the most basic model and the cheapest one. It’s good to see that graphene appears light brown. Don’t even think about more complicated experiments!
"You still have to use a high-end transmission electron microscope! The Electronic Engineering Department of Tsinghua University should have this thing! After all, we are studying microelectronics, and we must do nanoscale experiments. We should be able to use a transmission electron microscope that can observe nanoscale .”

In fact, Zhang Wei was not confident and even felt guilty. If it were more than ten years later, Tsinghua University would definitely have that kind of high-end transmission electron microscope, but it is really not necessarily possible now!
In 2003, ASML had just developed an immersion lithography machine, which helped TSMC upgrade the process to 130 nanometers, which was already the most advanced level in the world at the time.

China's semiconductor technology was still at the micron level at that time. Even Tsinghua University was definitely far behind the world's most advanced ones.

"You have to find someone familiar to ask." Zhang Wei thought of a high-quality human male.

"Ye Haotian is a social worker. He knows a lot of seniors who are doing scientific research. If you go to him, you will definitely get some useful information!"

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(End of this chapter)