Scientists create a new type of quantum dot solar cell
- Categories:Solar Energy
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- Time of issue:2020-05-20
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(Summary description)According to foreign media reports, quantum dots have shown promise as photovoltaic materials for solar cells in their many applications. Recently, researchers at Los Alamos National Laboratory (LANL) have developed a new type of quantum dot solar cell that does not use the toxic elements found in most batteries while maintaining efficiency.
When exposed to solar radiation, quantum dots absorb photons and release electrons to the surrounding titanium dioxide to generate an electric current. Combining so many elements into quantum dots will bring some defects and negatively affect the efficiency of the device, but in this case, the research team found that these defects actually improve the light energy conversion process.
"We were pleasantly surprised by the measurement results of the equipment," said Victor Klimov, the lead author of the study. "Because of their very complex composition (four elements are synthesized in a single nanoparticle), these points are prone to defects. Despite these defects , They show almost perfect performance in our solar cells-we detected 85 photoelectrically generated electrons in every 100 absorbed photons, which means that the conversion efficiency of photons to electrons is 85%."
Scientists create a new type of quantum dot solar cell
(Summary description)According to foreign media reports, quantum dots have shown promise as photovoltaic materials for solar cells in their many applications. Recently, researchers at Los Alamos National Laboratory (LANL) have developed a new type of quantum dot solar cell that does not use the toxic elements found in most batteries while maintaining efficiency.
When exposed to solar radiation, quantum dots absorb photons and release electrons to the surrounding titanium dioxide to generate an electric current. Combining so many elements into quantum dots will bring some defects and negatively affect the efficiency of the device, but in this case, the research team found that these defects actually improve the light energy conversion process.
"We were pleasantly surprised by the measurement results of the equipment," said Victor Klimov, the lead author of the study. "Because of their very complex composition (four elements are synthesized in a single nanoparticle), these points are prone to defects. Despite these defects , They show almost perfect performance in our solar cells-we detected 85 photoelectrically generated electrons in every 100 absorbed photons, which means that the conversion efficiency of photons to electrons is 85%."
- Categories:Solar Energy
- Author:
- Origin:
- Time of issue:2020-05-20
- Views:0
According to foreign media reports, quantum dots have shown promise as photovoltaic materials for solar cells in their many applications. Recently, researchers at Los Alamos National Laboratory (LANL) have developed a new type of quantum dot solar cell that does not use the toxic elements found in most batteries while maintaining efficiency.
When exposed to solar radiation, quantum dots absorb photons and release electrons to the surrounding titanium dioxide to generate an electric current. Combining so many elements into quantum dots will bring some defects and negatively affect the efficiency of the device, but in this case, the research team found that these defects actually improve the light energy conversion process.
"We were pleasantly surprised by the measurement results of the equipment," said Victor Klimov, the lead author of the study. "Because of their very complex composition (four elements are synthesized in a single nanoparticle), these points are prone to defects. Despite these defects , They show almost perfect performance in our solar cells-we detected 85 photoelectrically generated electrons in every 100 absorbed photons, which means that the conversion efficiency of photons to electrons is 85%."
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