Zero-dimensional graphene quantum dots, due to their size below 10nm, exhibit stronger quantum confinement effects and boundary effects compared with two-dimensional graphene nanosheets and one-dimensional graphene nanoribbons.

Therefore, it has more attractive application prospects in solar photovoltaic devices, biomedicine, light-emitting diodes and sensors.

Previously, graphene quantum dots attracted Wu Bin's interest because of their very special structure and unique optical properties.

To put it simply, it has the optical properties of quantum dots and the special structural characteristics of graphene oxide.

And most of the particle size of graphene quantum dots is about 10 nanometers, and the thickness is only 0.5 to 1.0 nanometers, plus it contains hydroxyl, carbonyl and carboxyl groups on the surface, so it has very good water solubility.

And Wu Bin is planning to use this characteristic as a starting point to see if he can make it rub any new sparks with calcium hydroxide.

……

At six o'clock in the morning, Wu Bin, who was dozing off, was woken up by the vibration of the mobile phone on the table, and vaguely picked up the mobile phone and pressed the call button and said, "Hey? ”

"Morning, are you up?"

Listening to some familiar voices in the mobile phone, Wu Bin rubbed his eyes, then put the mobile phone in front of him and looked at the caller, and found that it was indeed Qin Simeng calling.

"Well, just got up, what's wrong?" Wu Bin said with a yawn.

He had read the literature on the material yesterday all night, and he had just fallen asleep at 5 o'clock, so he was still in a state of brain buzzing.

"Oops~ I'm really sorry to wake you up, but someone said last time that they wanted to run and exercise."

After hearing this, Wu Bin paused for a moment, and then said: "Yes, I completely forgot about it when I was busy, thank you for being so concerned." ”

"Actually, I'm also selfish, I have a lot of programming language problems I want to ask you." After speaking, Qin Simeng added: "Then you can go back to sleep today, and if you need a fitness coach from tomorrow, call me at any time." ”

"Okay, then it's going to be troublesome Senior Sister."

"Then you sleep, Ann."

Hanging up the phone, Wu Bin continued to lie back on the table and fell asleep.

When he woke up again, Wu Bin first smelled the fragrance of green onions, and when he opened his eyes, he found that it was a pancake fruit that was still steaming quietly lying next to him.

"Wake up." Xie Hui, who had just finished brewing a cup of coffee, looked at Wu Bin and smiled.

"Did my brother buy it for me?" Wu Bin picked up the pancake fruit and asked.

"Well, I thought you should be sleeping in the lab again, so I'll bring one for you."

"Thank you." Wu Bin nodded.

Xie Hui took a sip of coffee after listening, shook his head with a smile and said, "I said how did you evade those patrolling security guards, didn't they chase you?" ”

"Just turn off the computer and the lights when they hear the sound, and they'll do it." Wu Bin replied.

"Okay......" Xie Hui shook his head again, "Question, you don't sleep comfortably?" Don't be afraid of catching a cold. ”

"The air conditioning in the lab is very comfortable, and I don't always sleep on the table, I have a folding bed and a quilt." Saying that, Wu Bin opened the drawer, pointed to it and said, "The toothpaste and toothbrush are also ready." ”

After listening to this, what else could Xie Hui say, he could only give two thumbs up and say.

"Excellent, excellent."

In fact, Xie Hui has seen a lot of people who have stayed up all night in the laboratory, but they are usually people who rush papers or have not finished the experiment occasionally.

After sighing, Xie Hui said: "How's the progress?" First of all, I'm not urging you, I'm just asking. ”

Wu Bin took a bite of the pancake fruit: "It's almost ready, and I'm ready to start the experiment when I apply for funding." ”

The amount of preparation before an experiment is usually quite large, but if you summarize it simply, it is really about reading a lot of references, thinking about ideas, polishing ideas, and most importantly, experimental design.

However, Wu Bin has long been familiar with these operations, so he often dares to step on the accelerator.

Looking at Wu Bin, who was munching on the pancake fruit, Xie Hui said with some surprise: "This efficiency ...... Sure enough, it's high. ”

"Senior brother, your group has laid a very solid foundation for this topic, so my research is also going well."

"Haha, it's good to help you." After taking a sip of coffee, Xie Hui said again: "Actually, I am very curious about something. ”

"What?" After swallowing the last piece of pancake fruit, Wu Bin asked.

"Several of your papers are really well written, and it can be said that even compared with those senior experts, do you have any special know-how? Or will your mentor help you revise it word for word? ”

"As for the dissertation, I usually complete it independently now, as for the trick you have to ask, senior brother...... Wu Bin said and thought about it: "I think it should be logic first." ”

"Logic first?" Xie Hui touched his chin and thought for a while, "Can you tell me more about it?" ”

"How do you say this......" Wu Bin thought for a moment: "The logic I said runs through the whole text, including the logic at the paragraph level, the logic at the sentence level, and even the logic in a sentence is very crucial." ”

"Personally, I think that a good paper should not be obscure for everyone, but it should be well-reasoned and well-founded, so that people don't need to waste too much brain to read it, and feel that what you say makes sense."

Xie Hui fell into deep thought after hearing this, and after a long while, he raised his head and said, "Taught." ”

"Don't dare, don't dare." Wu Bin hurriedly waved his hand.

……

"Hah...... Ha, no, run...... I can't run anymore. ”

The next morning, Wu Bin, who was wearing a sportswear next to the West Lake, bent down and shouted breathlessly with his hands on his knees.

"It's only been eight minutes." Qin Simeng, who was also wearing a sportswear, retreated and said with a smile.

"It's already considered that I have played at a super level." Wu Bin, who finally managed to pant evenly, raised his head and looked at Qin Simeng: "Anyway, senior sister, aren't you cold when you wear so little?" ”

"When you exercise, your body heats up." Qin Simeng replied while running on the spot.

"Then senior sister, you run first, I'll walk for a while."

"No, that won't achieve the purpose of the exercise, you have to break through the limit! Come on, I'll help you! ”

After Qin Simeng finished speaking, he ran behind Wu Bin and began to push him forward.

"Don't!!"

The sudden screams attracted the attention of several boys who were also running by the lake, only to find that it was a girl with a bumpy figure who was smiling and pushing a boy to run, and the boy looked reluctant.

'I'm special! Let's memorize English......'

The boys who no longer had any interest in running scattered one after another, leaving this "quiet place" that originally belonged only to them