The new nanomaterials developed by American scientist Paul Alivisatos and German Michael Grätzel for their applications in solar energy and advanced electronics are in this year’s “Basic Science” category Won the BBVA Foundation Award.
The BBVA Fundamental Science Knowledge Frontier Award has been awarded in the 13th edition Paul Alivisatos, From the University of California, Berkeley (United States) Michael Glazer, Federal Institute of Technology Lausanne (Switzerland). Their indispensable contribution to the development of new nanomaterials has been applied in renewable energy production and next-generation electronic products.
“Grätzel’s pioneering work included inventing a Dye-sensitized solar cell, In his name “, point out the minutes of the jury meeting,” Alivisatos used Semiconductor nanocrystals For energy applications and screen display”.
The way light interacts with matter has fascinated scientists for centuries, and the effort to control fine interaction is at the core of today’s powerful technology.
For the jury, Alivisatos and Grätzel were pioneers in controlling light pairs, by using nanomaterials. Therefore, he recognizes that they are key figures in basic sciences that allow “energy conversion using nanostructures.”
Grätzel is the first to combine molecular systems and nanoparticles to create a new type of solar cell that mimics solar cells. Photosynthesis, To achieve the goal of large-scale conversion of sunlight into clean, efficient and cheap electricity.
At the same time, Alivisatos uses nanocrystals with only a few thousand atoms, the so-called ‘Quantum dot’Emits light whose color can be precisely controlled. It also uses these nanocrystals to find new renewable energy sources.
At present, the most advanced application of his work is a new generation screen that combines quantum dots to achieve high color quality, and it has been sold as QLED TVs and quantum dot LEDs.
To a certain extent, Alivisatos explained in a video conference after learning about the failure: “Michael has done more research on how to convert the light entering the system into electricity, and the application from my work is related to how to convert energy. Just related. People can use it when they come out of the system.”
Environmental aspects of nanomaterials
Both winners firmly believe that facing climate change As well as the demand for large-scale production of renewable energy, his work in the field of nanomaterials opened up new research fields and represented one of the possible solutions in the field of science and technology.
Gretzl said: “Climate change is indeed a huge challenge. We must reduce the use of fossil fuels, Photovoltaic energy In the next few decades, it must increase its capacity by 200 times. Therefore, we need new technologies, and dye-sensitized cells have led to new technologies. Perovskite cells, Its efficiency in the pilot test has surpassed that of traditional silicon cells.”
Alivisatos also firmly believes that nanomaterials have not yet shown their full potential and that they will play a key role in meeting the great environmental challenges of today’s era.
“Climate change is one of the biggest challenges facing mankind. Part of the challenge is to learn to make new materials to capture the sun’s energy with as little energy loss as possible, and it can also be absorbed in large amounts.” Winner.
“We found that nanomaterials can be manufactured with very high quality and relatively low cost. They can be used to absorb sunlight, so that it does not lose energy in the form of heat and can be converted into electricity more efficiently. , Michael Grätzel has shown some uses of nanomaterials in solar energy, but in the next few years, we will see more uses.