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Researchers have developed an illumination-assisted annealing technique that significantly enhances the efficiency of selenium (Se) solar cells, achieving a performance boost of over 10%. Selenium, historically recognized as one of the earliest photovoltaic materials, has been largely overlooked in favor of newer compounds. However, its wide bandgap of approximately 1.9 eV offers inherent advantages for solar energy applications.
The newly introduced annealing process utilizes light exposure during thermal treatment to improve the material’s photovoltaic properties. This method addresses long-standing limitations associated with selenium-based solar cells and revitalizes interest in its potential as a competitive material in renewable energy technologies. The findings highlight the possibility of optimizing older materials like selenium through innovative techniques, potentially broadening their application in modern solar technology advancements.
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Source: GO-AI-ne1
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Date: January 7, 2026
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