2023/10/04 20:39
Bruce, the Nobel Prize winner in Chemistry, visited Taiwan more than ten years ago. (Reuters)
[Reporter Wu Baixuan/Taipei Report]The 2023 Nobel Prize in Chemistry will be awarded to American chemists Moungi G. Bawendi and Louis E. Brus and Russian solid-state physicist Alexei I. Ekimov ) and three other people, in recognition of their contributions to the invention and synthesis of “quantum dots”; Taiwanese scholars shared that Bruce visited Taiwan more than 10 years ago. He was tall and modest but had quick thinking. At that time, he knew that he had the ability to win the award.
The Taiwan Science and Technology Media Center invited domestic scholars to comment on this year’s Nobel Prize winners in Chemistry. Associate Professor Guo Junhong of the Department of Applied Chemistry at Yang-Ming Chiao Tung University pointed out that the three winners contributed to the vigorous development of nanomaterials. Their contribution was the invention and synthesis of “quantum dots”, which can make materials Shrink it to between 100 nanometers and achieve the visible light effect.
Chen Peiling, a researcher at the Applied Science Research Center of Academia Sinica, said that his supervisor used to be at Bell Labs, and he hired Bruce to study inorganic materials. Since Bell was founded by AT&T, an American telecommunications company, and the phones turned black over time, he hoped that Bruce and others would Studying whether inorganic materials can be used to make phones of different colors that will not discolor under light for decades, the laboratory discovered that the color of inorganic materials is related to size, and Bruce also brought Bawandi, and the two calculated In the master-student relationship, Bawangdi finally synthesized beautiful “quantum dots” through heating and other conditions, allowing inorganic materials to emit light, extending many subsequent applications.
Zhou Bitai, a professor at the Department of Chemistry at National Taiwan University, said that it takes about 2 years to synthesize dyed organic materials, ranging from red, orange, yellow, green, blue, indigo, and violet. However, quantum dots can emit different colors as long as they control different sizes. The process only takes 40 or 50 minutes. Now it has been It is called QLED when used in display screens, and coatings for solar cells are also being developed. In the biomedical field, less toxic cadmium-free quantum dots are being developed.
In addition, Zhou Bitai recalled that more than 10 years ago, the Department of Physics of National Taiwan University held a seminar and invited Bruce to come to Taiwan to give a lecture. I remember that he was very tall, but his speech was very humble, describing the principles of quantum dots word by word like a TOEFL exam. He didn’t talk much, but his thoughts were very quick. He was indeed a talent. The speech was packed with people, and everyone concluded that Bruce would definitely win the Nobel Prize. It was just a matter of time.
Huang Xuanyi, a professor at the Department of Chemistry at Tsinghua University, said that this is the first time that a Nobel Prize has been awarded to a field related to quantum dots. The contribution of this year’s winner is to find a control method to heat up and instantly cool down nanoparticles, control the color of quantum dots well, and enable mass production. .
However, Zhou Bitai said that quantum dot technology in Taiwan is still lagging behind. For example, foreign countries have already made a lot of money from QLED, and domestic companies are still conservatively investing in only 3 or 4 companies. However, it has laid the foundation for single-molecule fluorescence research, which is also the future of silicon for the optoelectronics industry and even the semiconductor industry. The foundation of photonic light guide field, there are also related developments in biomedicine.
The Nobel Prize in Chemistry was awarded to three scholars from the United States and Russia. The winning field was “quantum dots.” Professor Zhou Bitai of the Department of Chemistry at National Taiwan University came up with this material that can emit light in the dark. It has now been used in display screens and developed QLED (Quantum Dot Display). (Photo by reporter Wu Baixuan)
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2023-10-04 12:39:39
