Chapter 151: Tear off the tape

"Transparent glue...... Cloth? Gu Xigua's eyes widened and asked in surprise.

"Yes, it's the one for office stationery." Zhou Shuo gestured and made a specific gesture to his request.

"You guys, do you have transparent tape?" Gu Xigua secretly regretted in his heart, this Zhou Shuo is really unreliable, I asked you what equipment is used for scientific experiments, what do you want adhesive tape for? Glue two devices together?

"Poof-ha Finally, someone couldn't help it, and Ha Lu Ha Da Lu laughed.

After the first person, everyone in the lab laughed for a while.

"Headmaster, where did you find this strange thing, you actually want to use tape to do experiments! To say that he is a civil science is to insult the civil department! Although Professor Huang was a little in awe of Gu Xigua, he was also angry in the face of Zhou Shuo's request.

Laboratory No. 1 is the best in the materials laboratory, and being able to take charge of this laboratory also shows that Professor Huang's academic level is by no means an ordinary person. However, it is simply an insult for such a place that is very sacred to him to break into a person who wants to conduct experiments with duct tape.

"In such a big laboratory, you can't even have adhesive tape, right?" Zhou Shuo spread his hands and said helplessly.

"Give!" A graduate student took a roll of transparent tape from the side, threw it to Zhou Shuo and shouted, "This is 3M tape, don't say that the thing is not good enough." I see how you can use it to break through the worldly puzzles of the physics world! ”

What I can't do after studying physics for more than ten or decades, is it a broken college principal who hasn't even been admitted to graduate school? Can it be solved with a bundle of transparent tape? What a joke, this is a provocation to their professional competence! Everyone looked at Zhou Shuo indignantly, waiting to see how he made a fool of himself, and then he must be thrown out of the material laboratory!

Gu Xigua also hesitated a little, although Liu Haipeng was not his particularly proud disciple, he was also a good one. The person recommended by the director of the Provincial Science and Technology Commission, he didn't think much about it. After all, after teaching for decades, what kind of genius student has never seen, it is not impossible to solve the problems of the world in their twenties.

But who knew that Zhou Shuo was so out of tune, and even said what transparent tape to use to test the two-dimensional material graphene. If that fails. Where can he put his old face? Others will not make fun of Liu Haipeng for introducing Zhou Shuo to him. will only say behind his back that he doesn't know anyone. People in their sixties care about this reputation?

"Graphite slices, graphite slices have to be given to me, right?" Zhou Shuo doesn't care about the vision of these people, the invention of graphene is originally a rather mythical thing.

In 2004 graphene was replaced by Andrea. Heim and Constantine. Novoselov was successfully isolated before being prepared out. Graphene is even considered to be a non-existent assumption. To say that these professors didn't hear graphene, they just blasted him out of the air. It's already very educated.

Before graphene is really successfully separated. Who would have thought that the answer would be so simple, that only a bundle of adhesive tape would be needed to solve this seemingly unsolvable problem in physics?

At the urging of Gu Xigua, a graduate student reluctantly made a graphite slice. There are ready-made slicing equipment in the laboratory. It's also not a hassle to make.

Twenty years later, someone made up a joke about the invention of graphene, which was used to pour dirty water on the creativity of the Chinese. It is said that Andrey. Heim and Constantine. Before Novoselov invented the use of adhesive tape to separate graphene, he once asked a Chinese student to try to separate the "thinnest graphite sheet". The Chinese doctor worked for three weeks on a superlative polishing machine to get a ten-micron-thick spot of graphite. When he stared at the red eyes and made the results, Andre. Heim was still not satisfied.

As a result, the two were still dissatisfied with the thinness of the graphite slices, so they had the idea of using adhesive tape to reduce the thickness of the graphite slices.

In the paragraph, this becomes evidence that Chinese only follow the rules and have no creativity. Not to mention whether there are Chinese in the process of the invention of graphene, isn't science originally such a way to go through all possible roads?

It's like a person who eats the tenth bun before he is full, can it be said that only the tenth bun is useful, and it doesn't matter if the first nine are eaten or not? It was because a research assistant tried all the ways to achieve the goal that the two scientists pointed out the way forward.

In the development of science and technology, failure and success are equally important.

"Here you go." The graduate student placed the graphite slice in front of Zhou Shuo and looked at him coldly.

Zhou Shuo shrugged his shoulders, pulled the tape and glued it to the surface of the graphite slice, and then removed the tape from the graphite slice so that he got a transparent tape with a layer of graphite glued.

As soon as he had done this, there was almost a pause in the lab, and there was silence immediately. The worst present were also graduate students, and there were many doctoral students and professors. You may not know much about graphene, but you are familiar with the characteristics of graphite. One of the characteristics of graphite is its layered structure, which was once connected to each other only by a very weak force. This is also the reason why pencils can write, just the force of graphite and paper friction can peel off many graphite layers from the stone mill.

So if the number of layers of graphite slices is continuously peeled off with transparent tape, can a thin enough graphite material be obtained after the final analysis?

Thinking of this, everyone's mood became eager. Even if you can't get real graphene, being able to make a thin enough graphite layer is a great result!

"Can you do me a favor?" Zhou Shuo was in a hurry to tear the scotch tape, and accidentally couldn't find the beginning of the tape.

"I'm coming!"

"No, I'll come."

"Ahemβ€”I'll do it anyway." Professor Huang glanced around and glared back at the eager graduate and doctoral students.

Just kidding, if there is really anything to come out, even if you stand next to you and tear the tape, you can fill in the name in the paper. With such a good errand, where will it be their turn?

Tear pull –

Professor Huang squinted his eyes and touched for a long time, and finally found the beginning of the tape, and then tore it off neatly. Judging from the results, this may be the most highly educated tape in a similar test. The serious test is the tutor's mouth and the student breaks his leg, especially the material science test is often full of sweat, how can the tutor personally tear the tape to do the test?

The two of them just tear the tape and stick the tape. The scotch tape, which was originally stained with a layer of graphite, quickly thinned down at a speed visible to the naked eye under the continuous peeling state.

"Okay?" The graduate student in the back asked eagerly when he saw that the graphite layer was gradually becoming transparent.

"It's much worse." Zhou Shuo glued the tape intently and said calmly.

The simple repetitive labor made Zhou Shuo and Professor Huang sweat. However, the two of them were quite good, and the onlookers next to them were more anxious than them.

Gu Xigua couldn't tell that he was in his sixties at all, just looking at his red face, he said that he was in the prime of his forties. The professors, doctors, and graduate students around him were all about the same, and their heads were like sunflowers crowding around Zhou Shuo. Their eyes were big as if they were about to protrude, just to get closer to the test.

"It's done, isn't it?" Professor Huang asked nervously with trembling hands.

His trembling hands have nothing to do with nervousness, and whoever keeps tearing the tape for more than an hour will probably have to shake when he stops. There were still people in the middle who wanted to replace him, but Professor Huang, who was usually good-tempered, was so excited that he wanted to scold people, as if he didn't want to help him, but to rob his daughter-in-law.

"Almost!" Zhou Shuo touched the sweat on his head, and at this time, the shadow of graphite was almost invisible on the adhesive tape. The absorption rate of graphene to light is only 2.3%, and if it is only a single layer or several layers of graphene, it cannot be seen by the naked eye.

"Hurry up, go to the electron microscope!" Gu Xigua glared at him and shouted hoarsely.

The so-called scanning electron microscope is an abbreviation for scanning electron microscope. It can bombard the surface of matter with a beam of high-energy incident electrons, and use the interaction between electrons and matter to obtain information about various physical and chemical properties of the measured sample itself.

For the detection of the morphology, composition, crystal structure, electronic structure and other properties of the substance, the microscopic content of the substance can be obtained by selecting different information detectors.

Of course, it was not Zhou Shuo's turn to do the operation of electron microscope scanning, and a group of people installed the equipment and started the electron microscope. The results of the electronic scan soon appeared on the monitor.

"This is ......" Gu Xigua looked at the monitor, groaned, turned to look at Professor Huang and said: "Lao Huang, you are the authority of materials science in our Bohai University, you can draw conclusions." ”

Professor Huang swallowed, leaned over to the monitor, and carefully studied the images obtained after the electronic scanning.

"Hexagonal, sp2 hybrid orbital. Oh my God, this is really graphene, a two-dimensional material with only one layer! Professor Huang burst into tears and shouted excitedly. The neat honeycomb arrangement is like the most beautiful painting in his eyes at this moment, and the beauty is intoxicating.

"It's true, graphene really exists!" Everyone gathered in front of the monitor, and they were all amazed when they saw the scanned images.

"But this is not scientific, the existence of graphene conflicts with existing scientific theories!"

"Stupid, you have always modified theories based on reality, and you still want to modify reality according to theories!" (To be continued......)