室内光照条件下 新型太阳能电池光电转换效率创新高

Core Insights - An international team led by University College London has developed a new durable solar cell that sets a record for photovoltaic conversion efficiency under indoor lighting conditions, potentially powering small electronic devices and reducing reliance on traditional batteries [1][2] Group 1: Technology Development - The new solar cell utilizes perovskite materials, which have shown significant potential in outdoor solar cells, allowing for tunable composition to optimize absorption of specific indoor light wavelengths [1][2] - The newly designed perovskite photovoltaic device achieves approximately six times the energy conversion efficiency of commercial counterparts under indoor lighting conditions [1][2] Group 2: Performance Metrics - The solar cell reached a photovoltaic conversion efficiency of 37.6% under 1000 lux illumination, setting a world record for perovskite solar cells with a bandgap of 1.75 eV in indoor light conditions [2] - In long-term stability tests, the cell maintained 92% of its initial performance after over 100 days of continuous operation, and retained 76% of its initial performance after 300 hours at 55°C and continuous strong light exposure [2]