Chapter 138: Reveal chemistry skills!

After yesterday's interview, his laboratory staffing was finally ready.

However, experiments cannot be done immediately. The laboratory has just been built and it will take at least one or two weeks of natural ventilation before it can be used.

Taking advantage of this period of time, Kong Jiyuan just sent them to find papers and foreign literature related to organic solar cells to read, so that they could have a general understanding of their next research, so as to avoid being confused and not knowing what to do.

Time flies by, and in January, Yanjing also ushered in the first snow of the new year. The campus of Yanjing University was covered with snow, and snowflakes accumulated on the road in a thick layer.

Even if it is crushed by traffic and trampled by pedestrians, the white snow stained by dust will be quickly covered by snowflakes falling from the sky, and it will still maintain its pure white and holy appearance.

Xiao Ran was walking on the path of Yan Da Weiming Lake, spitting out a faint white mist. His body was not cold, and he was not wearing too much. Facing the heavy snow flying in the sky, he did not hold an umbrella. Xiao Ran liked it very much. This feeling of walking on snow.

"Huh~ I can almost master the chemistry skills today." Xiao Ran rubbed his palms and said to himself.

After nearly two months of study, he had almost mastered the college knowledge about chemistry. He had a hunch that he would be able to develop his chemistry skills in just a few days.

As expected, today is another day of studying in the library.

It is now approaching the end of the semester, and students, whether freshmen or seniors, are all working hard for the upcoming final exams.

Of course, this has nothing to do with Xiao Ran. He took a total of 7 subjects in the final exam of his freshman year, including three professional subjects, advanced algebra, mathematical analysis, and geometry. Needless to say, these three subjects were taken.

If he doesn't get full marks, the marking teacher's first reaction is probably to suspect that he made a mistake or that the question was wrong.

What? Xiao Ran's answer is inconsistent with the reference answer? Then I have to take a closer look to see if the reference answer is printed incorrectly somewhere!

As for other public courses and basic courses, it is not a problem for Xiao Ran.

English? His English level is level 4!

Ideological and political theory? Isn't it just a matter of flipping through a book? It's done in ten minutes!

physical education? Learn about your 15-point constitution!

Computer Basics? Doesn’t this hit the muzzle of the gun? In his previous life, he was a senior programmer and the backbone of the company. This was nothing to him.

To sum up, the final exam is really not difficult for him, and there is no need for him to allocate energy and time to the final exam.

Arriving at the Yanda Library, the library was already overwhelmed by the army of final reviewers. When I looked up, I saw people everywhere.

Xiao Ran searched around the museum with organic chemistry under his arm, and finally found an empty seat to sit down.

Then I took out my laptop and logged into the MOOC. With the video explanation, I opened Organic Chemistry and read it with great interest.

Time passed by, and at 3:30 in the afternoon, Xiao Ran took a deep breath and put down the book in his hand. He had completely finished reading "Organic Chemistry".

Chemistry skills should be refreshed, right?

Xiao Ran muttered and opened his system panel.

[Host]: Xiao Ran

[Occupation]: Student, artist (banned)

[Level]: Level 2 scholar (scholar level: 1~5, unlocked when the reputation reaches the corresponding level. The higher the unlocking level, the higher the probability and rarity of skills, items, and props related to the scholar profession). Domestic entertainment first-line star ( blocked)

[Physique]: 15 (normal adult physique is 10)

【技能】:数学Lv5(251145/10000000)唱功lv4:(0/1000000)、街舞lv4:((0/1000000).化学Lv1(0/1000)

[Talent]: Abnormal energy, photographic memory, flash of inspiration

[Title]: Master of Time Management (Time does not depend on how much you have, but on how you use it)

[Reputation value]: 3600000 (Every ten people’s praise or slander, admiration or hatred can be converted into one reputation value)

Chemistry Level 1!

Compared to last time, after using the chemistry skill this time, I was not so excited.

"System, help me upgrade my chemistry skills to level five!"

The second time I spent more than one million in reputation points, my chemistry proficiency increased at a rapid rate, Lv2, Lv3, Lv4, Lv5!

The moment he reached level five, a familiar scene appeared again, with towering and majestic huge stone statues rising from the ground in front of his eyes, but this time it was the Chemical Temple.

[Host, please choose a chemist, and the system will instill their lifetime chemical knowledge and experience into you]

The system's mechanical and emotionless prompts sounded in his ears.

Xiao Ran looked around. Many of the stone statues around him were very familiar to him. Not to mention the Nobel Prize, the award named after him is still the most famous award in the academic world in the world.

Lavoisier, the father of modern chemistry! Avogadro, the proposer of the molecular hypothesis! There are also Marie Curie, Mendeleev, Dalton, Faraday, etc.!

There are also many awesome people who cannot be named.

For these chemists, Xiao Ran was more cautious in his selection, and did not choose whoever was famous.

After all, chemistry is different from mathematics. There is no such thing as outdated knowledge of mathematics. But in chemistry, to be honest, these talented people may have been great in their time, but their knowledge is definitely outdated now.

Chemistry is a discipline that studies the properties, composition, structure, changes and interactions of substances. It requires designing and conducting experiments to observe the properties and change processes of substances in order to draw scientific conclusions.

Even if they were resurrected with all the knowledge they had during their lifetime, they would have to start learning and experimenting again when faced with the chemical knowledge of this era.

Therefore, their knowledge and experience during their lifetimes were of little significance to Xiao Ran.

After walking around all the colossi, Xiao Ran finally stopped in front of a colossus, Carl Barry Sharpless!

2001, winner of the 2022 Nobel Prize in Chemistry!

Xiao Ran took a deep breath and spoke slowly: "The system will choose him!"

······

"Junior Brother Xiao, I guessed you were here." Kong Jiyuan's voice suddenly rang in Xiao Ran's ears. He looked up and saw Kong Jiyuan wearing a thick down jacket, rubbing his frozen hands and sitting down next to him.

"Senior Brother Kong, why are you here?" Xiao Ran glanced at him in surprise.

Kong Jiyuan sat down and cleaned the snow on his clothes, and said: "I came here specifically to find you!" As he spoke, his expression was not very good. Xiao Ran was surprised: "Looking for me?"

"That's right." Kong Jiyuan whispered, "Our project seems to be in some trouble."

Xiao Ran's heart tightened: "What's the trouble?"

"You asked me to find some papers and foreign literature on organic solar cells before. I studied them carefully. I thought there would be no problems if our project continued in this direction, but I didn't expect that yesterday I accidentally discovered A recent research paper, their research direction is very similar to ours, but they are already ahead of us."

Xiao Ran frowned: "Are they ahead of us? Does that mean they have made a breakthrough?"

Kong Jiyuan nodded: "Yes, according to the description in that paper, they have not only successfully synthesized high-efficiency organic solar cell materials, but also obtained very stable data in experiments. If their research results are true and reliable , then our project is equivalent to duplicating other people’s work, without any innovation at all.”

This news was undoubtedly a bolt from the blue for Xiao Ran. He didn't expect that his first scientific research project would collide with someone else's, and judging from Kong Jiyuan's appearance, the other party's research results seemed to be more advanced than theirs.

Kong Jiyuan sighed and said somewhat thankfully: "Fortunately, the laboratory has not yet been officially put into use. We can also re-evaluate other research directions. Otherwise, it will be too late to discover this problem by then."

Xiao Ran was silent for a while, and then said: "Senior Brother Kong, please send me that paper for a look."

Kong Jiyuan nodded: "Okay, I'll send the paper to you now, but you have to be mentally prepared. The other party's research results are indeed outstanding."

After speaking, Kong Jiyuan took out his mobile phone and sent the electronic version of the paper to Xiao Ran. After Xiao Ran received it on the computer, he couldn't wait to open the paper and read it.

It has to be said that this news did give him a blow and caught him off guard, but he knew that now was not the time to be depressed and he had to adjust his mentality as soon as possible. After all, he was now the head of the laboratory.

If even he is clueless, then there is no need to continue this experiment.

Time passed by minute by minute, and half an hour flew by.

After reading the entire paper, Xiao Ran rubbed his sour eyes, then took a long breath, and his expression suddenly relaxed.

The corresponding author of this paper is a chemical engineering professor from California, and the technology he used in the paper is indeed superb.

Their team developed a double-layer structure composed of a fully dissolved microscopic metal oxide and a planar heterojunction structure, and then used CH3NH3 Pb(I1-xBrx)3 (x =0.1– 0.15) As the absorption layer, the polymer (triphenylamine) serves as the hole transmission material.

The final energy conversion efficiency (PCE) of the solar cell obtained was 16.2%. The conversion rate of organic solar cells currently on the market is only about 9.7% to 14.6%.

It can be said that their research is indeed one step ahead of the world. Xiao Ran estimates that this is just a stage in their research. The final energy conversion rate of solar cells may reach about 18%.

However, this has little to do with Xiao Ran’s research. Perhaps they are similar in some previous steps, but Xiao Ran’s organic solar cell technology uses a new polymer supply developed by combining trimerization and regioisomerization strategies. body.

The general process of the experiment is to use two new isomer units TTO and bis(2-hexyldecyl)2 to obtain TTI, and incorporate them into the PM6 main chain through random copolymerization to form a series of terpolymers.

Compared with the double-layer structure composed of microscopic metal oxides and planar heterojunctions as the main features in the paper, this terpolymer has obvious advantages. It can show better molecular coplanarity and stronger Crystallinity, which facilitates more efficient exciton dissociation and charge transfer.

The final energy conversion rate that can be achieved is around 20.26%~21%, and there is no hysteresis effect.

It can be said that both in terms of performance and materials, it completely beats the organic solar cells in the paper.

Knowing this result, Xiao Ran breathed a sigh of relief unconsciously.

Damn it, I thought my project had collapsed before it even started, but it turned out to be a false alarm!

"Junior brother Xiao, are you okay?" Seeing Xiao Ran's sudden expression of relief, Kong Jiyuan couldn't help but worry.

This guy Xiao Ran won't be so beaten that he gives up on himself!

Kong Jiyuan couldn't help but start to think wildly, scratched his head, he organized his words, considered and comforted: "Actually, this kind of thing is very common in the scientific research world, you don't need to take it to heart, besides, the opposite is the Chemistry Department of the University of California. Engineering professors are much better than us in terms of experimental conditions and financial knowledge.

Even if we compete on the same starting line as him, we can't compete with him, let alone others who participated in the research earlier than us."

"Senior Kong, it goes without saying." Xiao Ran interrupted him, "Don't worry about the professor at the University of California. He does his thing, we do ours, and the experimental project continues."

"That's right. Victory and defeat are common matters in military affairs. A momentary defeat is nothing!" Kong Jiyuan said as he suddenly felt something was wrong and reacted suddenly, "No, wait a minute! What did you just say?"

Xiao Ran shrugged and said in a casual tone: "Our experimental project continues as usual. Is there any problem?"

"You're crazy! The other side's research success has already come out, what else are we studying!"

"The research on the opposite side has not been completed yet, it is just a phased result!"

"So what if it's just a phased result? You don't still want to compete with the other party, do you?" Kong Jiyuan was shocked by Xiao Ran's words, and he even spoke indiscriminately: "The other person is a professor from the University of California, Xiao Ran, you have no brains is that OK?"

Xiao Ran comforted him: "Don't worry, I'm sure. Besides, although our research and his are in the same general direction, the details are completely different, so you don't have to worry."

Chemistry professor at the University of California, don't underestimate the power of the system, you guy!

Do you understand the value of hanging a pussy?

"But..." Kong Jiyuan wanted to say something more.

"Okay, no need to say anything!" Xiao Ran interrupted him with a smile. Kong Jiyuan was silent for a moment, and finally sighed helplessly: "Okay, you are the person in charge of the laboratory, you have the final say!"

“However, I have bad news to tell you. We are not only competing with professors from the University of California, but also the world’s top universities such as Harvard and California Institute of Technology, as well as domestic universities such as Huaqing University, Zhejiang University, and Aurora University.

In addition, our school also participates in solar cell research, and the person in charge is led by Wu Maocai, deputy dean of the School of Chemistry and deputy director of the School of Mathematics."

"Are you sure you want to continue researching this project?"

Wait a minute!

Xiao Ran was a little confused when he heard the names of this large list of universities: "No, it's just about the research on organic solar cells. How come there are so many universities competing for it?"

"I only learned about this recently." Kong Jiyuan scratched his head and said with difficulty: "You know about the trade war between us and America half a year ago, right?"

Xiao Ran nodded: "I know."

(End of this chapter)

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