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The breakthrough is based on the ability of the new material. produces up to two electrons for each high-energy photon absorbed. Traditionally, the Shockley-Quisser limit limited the theoretical
The breakthrough is based on the ability of the new material. produces up to two electrons for each high-energy photon absorbed. Traditionally, the Shockley-Quisser limit limited the theoretical EQE to 100%, making this achievement unprecedented.
The lead author of the study, Professor of Physics Chinedu Ekuma, emphasized the importance of this success:
This study represents a significant advance in our understanding and development of sustainable energy solutions, highlighting innovative approaches that could redefine the efficiency and affordability of solar energy in the near future.
It all started with computer modeling to determine the optimum combination of materials. A prototype was then created, confirming the material’s extraordinary properties.
In tests, the material showed an average photovoltaic absorption of 80% and an unprecedented EQE of 190% when used as an active layer in silicon photovoltaic cells.
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The material owes its extraordinary efficiency to unique “intermediate zones” – specific energy levels in its electronic structure that are ideal for the conversion of solar energy. These states absorb sunlight efficiently and produce charge carriers, especially in the infrared and visible regions of the electromagnetic spectrum.
The use of “van der Waals voids” (atomically small spaces between layered two-dimensional materials) plays an important role in this material. Scientists achieved this unprecedented efficiency by strategically inserting zero-valent copper atoms between germanium selenide (GeSe) and tin sulfide (SnS).
Although commercialization is a future prospect, the material’s potential to increase the efficiency of solar energy systems is undeniable. The ability to capture photon energy lost by traditional solar cells through reflection and heat generation is an important step towards meeting global energy needs with sustainable solutions.
In fact, the development of this highly efficient material for solar cells creates promising prospects for the development of solar energy technologies and its needs.
Source: 24 Tv
I’m Maurice Knox, a professional news writer with a focus on science. I work for Div Bracket. My articles cover everything from the latest scientific breakthroughs to advances in technology and medicine. I have a passion for understanding the world around us and helping people stay informed about important developments in science and beyond.
