• Big breakthrough: Vacuum-deposited perovskite cells retain 80% performance after 1,080 hours In the lab, the cells achieved 19 • Researchers have achieved a major breakthrough in producing perovskite solar cells as they have developed a multi-source co-evaporation recipe that markedly enhances the crystal quality of vacuum-deposited perovskite films • The advance brings all vacuum-deposited single-junction perovskite cells as well as perovskite-on-silicon tandem solar cells closer to scalable production, according to researchers from the Hong Kong University of Science and Technology (HKUST) • Approach yields a highly ordered wide-bandgap perovskite The research team revealed that introducing a lead chloride (PbCl2) “co-source” during thermal co-evaporation can effectively direct how the perovskite crystals grow • The approach yields a highly ordered wide-bandgap perovskite (1 • 67 eV) with many grains aligned in a (100) “face-up” orientation, which is a hallmark of a more crystalline film that better resists light- and heat-driven degradation, resulting in improved optoelectronic properties and stronger stability under light and heat stressors

Article Summaries:

  • Big breakthrough: Vacuum-deposited perovskite cells retain 80% performance after 1,080 hours In the lab, the cells achieved 19.3% efficiency. Researchers have achieved a major breakthrough in producing perovskite solar cells as they have developed a multi-source co-evaporation recipe that markedly enhances the crystal quality of vacuum-deposited perovskite films. The advance brings all vacuum-deposited single-junction perovskite cells as well as perovskite-on-silicon tandem solar cells closer to scalable production, according to researchers from the Hong Kong University of Science and Technolo

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