4 15th.

Rainbow University.

Faculty of Modern Engineering and Applied Sciences, Optoelectronic Experimental Teaching Center.

In front of an office.

Li Ya, a sophomore, knocked respectfully on the door.

"Please come in!"

A neutral voice came.

Li Ya pushed open the door with some restraint and came to a professor who was over 50 years old.

He said politely: "Professor Chen, I am Li Ya, a sophomore majoring in optoelectronic information science and engineering.

I recently wrote a paper, both in Chinese and English.

Can you please give me some pointers?"

Hear this.

Chen Donghe was a little surprised.

Generally speaking, freshmen work on grade points, sophomores do competitions, and juniors work on essays.

Rainbow University students, only first-year undergraduate students, sophomore undergraduate students, first-year students, second-year students, first-year doctoral students, and second-year doctoral students.

If a first-year graduate student or a doctoral student comes to him for guidance on a thesis, it is not uncommon.

But it is extremely rare for sophomores to come to him.

"Okay, the teacher will help you take a look. "

Chen Donghe smiled and nodded.

He put the USB flash drive handed over by the other party, put it into the USB port of the computer, and read the paper.

"Xiao Li, what field of paper did you write?"

Li Ya said truthfully: "Professor Chen, I wrote a paper in the field of photovoltaics. "

Hearing this, Chen Donghe nodded.

The subject field he is engaged in is optoelectronics.

The students came to him for advice, and they were asking the right person.

After the paper is read.

The title appears on the screen and is titled "High-efficiency all-perovskite tandem solar cells".

"All-perovsk tandem cells?"

Chen Donghe's eyes lit up and he became interested.

Solar photovoltaic power generation has always been the focus of industry research.

The existing crystalline silicon solar cells have been applied on a large scale, but their photoelectric conversion efficiency is close to the ultimate efficiency of industrialization.

To put it simply, the cost of photovoltaic power generation is closely related to the efficiency of cells.

Absolute value for every 1 increase in battery efficiency.

The cost of photovoltaic power generation can be reduced by 7.

Therefore, the photovoltaic field is actively developing new photovoltaic technologies with higher efficiency, and Xi857 hopes to break through the limit efficiency of traditional crystalline silicon cells and further reduce the cost of photovoltaic power generation.

The all-perovskite tandem solar cell is a new photovoltaic technology in the field of international cutting-edge science.

Chen Donghe took a deep breath and patiently skimmed through the paper.

The paper reads:

Building tandem cells is the most effective way to greatly improve battery efficiency.

The theoretical efficiency of double-junction tandem cells can reach 45, which is much higher than the S-ultimate efficiency of single-junction cells33.

Although the traditional III-V semiconductor tandem cell has achieved high efficiency, the fabrication process is complex and expensive.

Perovskite/perovskite tandem cells constructed by tandem wide/narrow bandgap perovskite daughter cells can have the outstanding advantages of high efficiency and low cost.

Li Ya proposed an atomic layer deposition technology to prepare a new tunneling structure with a thinner dense semiconductor layer and an ultra-thin metal cluster layer, which greatly simplified the preparation process of all-perovskite tandem cells and significantly improved the device performance.

Then, he regulated the crystallization growth process of narrow-bandgap perovskite through the oxidation of nitus ions Sn2+ inside the perovskite grains and on the surface.

This effectively reduces the defect density of the film, increases the diffusion length of the carriers, and overcomes the core bottleneck that limits the efficiency of all-perovskite tandem cells.

He has successively achieved a small-area tandem cell with conversion efficiency of 24.8 and 25.6, and developed a large-area all-perovskite tandem cell with a conversion efficiency of 24.2!

Chen Donghe looked at the paper, and the more he looked at it, the more frightened he became.

The all-perovskite tandem cell of 24.2 is simply a genius study.

With such high efficiency, it has broken the world record in the field of all-perovskite tandem cells!

If you continue to study deeply.

All-perovskite tandem cells are expected to surpass crystalline silicon cells and create a milestone in the field of photovoltaic power generation!

The paper is detailed with dense experimental data, which can be described as reasonable and convincing.

Read the whole paper down.

Chen Donghe's heart was turbulent.

Is this really a paper that a sophomore (CDAH) can write?

He was amazed that a PhD student could write such a thesis.

Not to mention that Li Ya is only 19 years old this year and is still a sophomore.

He wouldn't have copied it from a foreign website, would he?

Come to think of it.

With the intention of doubting the letter, Chen Donghe logged on to the paper plagiarism check website and uploaded the entire paper.

The repetition rate is 0.5!

Those who are qualified can no longer be qualified.

Chen Donghe raised his head, looked at Li Ya with sharp eyes, and asked, "You really wrote this paper?"

"Professor Chen, the paper was really written by me!"

Li Ya, who was still a little restrained at the beginning, looked firm at the moment.

Li Ya said: "Professor, the School of Modern Engineering and Applied Science of the university has a 65,000-square-meter high-standard scientific research building, with all kinds of high-end instruments, which is very suitable for experiments.

Before I knew it, I was soaking in the laboratory, which had become a daily routine.

When the functional layers are combined into solar cells, sunlight is not only transformed into jumping numbers on the instrument through the band gap, but also reflects the colorful light in my heart.

All-perovskite tandem cells are extremely competitive.

Domestic research is not as good as global researchers in related fields.

I hope to do my part and surpass them in the new PV field!"

"Good!"

Chen Donghe looked at Li Ya's clear eyes and nodded with satisfaction.

Qiji thousands of miles is not a day's work.

Li Ya is a sophomore, but he can endure boredom and is willing to spend more time studying.

He is undoubtedly a good seedling of scientific research!

Chen Donghe was pleased: "Xiao Li, your paper is shocking, I have nothing to guide you."

The only thing that can find flaws is the wording in the layout and details of the paper.

Put the paper here first, and I'll change it for you. "

"Thank you, Professor Chen!"

Li Ya hurriedly thanked him.

Chen Donghe continued: "But you can't send this paper!"

"Huh? Why is that?"

Li Ya wondered.

Chen Donghe said bluntly: "In this paper, your experimental result is to develop a large-area all-perovskite tandem cell with an efficiency of 24.2.

If you want your paper to be listed in top journals, you must let an authoritative third-party testing organization conduct professional testing on the all-perovskite tandem cell you developed.

There are 8 third-party testing institutions, including the State Key Laboratory of Photovoltaic in Xiaguo, the National Renewable Energy Laboratory of the United States, the Comprehensive Research Institute of Neon Industrial Technology, the Neon Electric Safety and Environmental Technology Laboratory, and the Fraunhofer Institute for Solar Energy Systems in Germany. "

"Huh, so troublesome?"

Li Ya scratched his head, a little depressed.

Chen Donghe said kindly: "I have some contacts in the photovoltaic field, and I can help you contact the Xia Guo State Key Laboratory of Photovoltaic for the most professional testing." "

"Thank you, Professor!" (If you read a violent novel, you can go to Feilu Novel Network!)

Li Ya thanked him from the bottom of his heart.

If he was asked to find these world-class testing institutions in person, people would ignore him at all.

Fortunately, Professor Chen helped!

Chen Donghe asked, "Xiao Li, have you decided which journal to apply for?"

"Nope!"

Li Ya said truthfully: "My thesis has just been completed, so I came to you for advice." I haven't decided which one to vote for. "

Chen Donghe is in a good mood at the moment.

He patiently explained: "The three top international academic journals are the natural journal "Nature", the scientific journal "Science", and the "CE11" cell journal. As long as you can publish a paper in these three journals, it will be useful to publish more papers than you can in regular journals. "

Hearing this, Li Ya nodded.

Three top academic journals, he has long been thunderous.

Nature, a journal of natural sciences, with an impact factor of 41.577.

Founded in 1869, Nature Journal is the world's first international scientific journal that consistently reports and comments on the world's most important breakthroughs in science and technology.

The journals cover life sciences, natural sciences, clinical medicine, physical chemistry and other fields.

Science, a scientific journal, with an impact factor of 41.058.

The scientific journal is an academic journal published by the Association for the Promotion of Science in the United States and is one of the most authoritative academic journals in the world.

It mainly publishes the latest scientific research results and covers a wide range of disciplines.

CE11, Journal of Cell, Impact Factor 31.398.

It is the best journal in the field of biological sciences and publishes the latest research findings in the field of life sciences.

Li Ya knows very well that if his paper can be published in these three top academic journals, it will be of great benefit to him in the future, such as graduate school entrance examination, employment, and academic research.

Chen Donghe proposed: "Since you don't know which one to vote for, then vote for the journal "Nature" with the highest impact factor. "

"Thank you, Professor, I listen to you. "

Li Ya thanked him again.

......

Chen Donghe looked at the background of Li Ya's departure and sighed with some emotion.

The back waves of the Yangtze River push the front waves.

One generation is stronger than the next.

The current sophomores are amazing!

didn't wait for him to finish his sighs.

There was another knock on the office door.

Dozens of students came up to him.

"Professor Chen, my paper is titled "Elastic Ice Single Crystal Micro-Nano Optical Fiber", please give me your advice!"

"Professor Chen, my paper is titled "PT Symmetry and Nonlinear Manipulation of Non-Hermitian Topological States", and I hope you can give me some pointers. "

"Professor Chen, my dissertation is titled "Benchtop Free Electron Laser Driven by Laser Wake Field Acceleration", and I would like to ask you to give me some guidance. "

The name of my dissertation is "Three-dimensional Heterogeneous Integrated MoS2-TFT High-Resolution Micro-LED Display Technology". "

My dissertation is "Efficient Broadband Achromatic Metalenses for Near-Infrared Biological Imaging Window". "

"Professor Chen, I also have a paper here that I would like you to point out about, which is called "Ghost hyperbolic polaritons found in birefringent crystals". "

"Professor, I'm ......"

......

Hear from many students for their dissertations.

The corners of Chen Donghe's mouth twitched, and he was a little speechless.

On weekdays, when students ask him for advice, he is naturally pleased.

But at the same time, so many people come to point out.

That's a bit of an exaggeration!

In addition, he is not qualified to point out any paper.

The titles of these students' papers are so high, he doesn't understand whether it's good or not?

Point?!

Finger fart!

You sophomores, all of you are so good at academics.

I'll let you point me out......

......

At the same time.

Tutors and professors from various colleges of Rainbow University, like Professor Chen Donghe, received requests from students for paper guidance.

Students' theses cover the fields of life sciences, mathematics, physics, chemistry, materials, computer science, etc.

None of the professors expected it.

How did these freshmen, who had just become sophomores, suddenly become interested in academic research?

The students of Huaqing Yan University are not as studious as you!

In an attitude of responsibility to the students.

Professors from various disciplines rigorously help students revise their papers.

I don't know if I don't see it, and I'm shocked when I see it.

Each of these papers is of exceptional quality, and many of them are milestone scientific achievements in the discipline.

The journals they want to submit to are all top academic journals such as Nature, Science, and CE11.

Professors of various disciplines are happy to see this.

They were instantly busy, helping students with paper layout, reformatting, and so on.

Busy at the same time.

The professors were all emotional.

Now the overall educational and academic atmosphere of Rainbow University is really very strong.

And so on.

The students of Rainbow University will reach a new level in the academic field!

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