新型钙钛矿太阳能电池
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室内光照条件下 新型太阳能电池光电转换效率创新高
Ke Ji Ri Bao· 2025-08-13 00:16
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]
锚定“四个面向” 科技创新加速跑(一周科技观察)
Ren Min Ri Bao· 2025-06-29 21:58
Core Insights - The article emphasizes the mission of scientists and technology workers to advance science and technology in alignment with the "four orientations": global technological frontiers, economic main battlefields, national major needs, and people's health [1][4] Group 1: Technological Advancements - Recent technological progress showcases the commitment of scientists to the "four orientations," with significant achievements in space exploration and quantum technology [2] - The successful zero-height escape flight test of the "Dream Boat" manned spacecraft marks a new milestone in spacecraft development [2] - The first superconducting quantum computing measurement and control system designed for a thousand-bit scale has been delivered to multiple research and industry units, providing over 5000 bits of measurement and control services [2] Group 2: Innovations in Chemical and Energy Sectors - Researchers have developed a new catalyst that directly synthesizes para-xylene from carbon dioxide and hydrogen, expanding new pathways for carbon utilization [2] - A student team from Dalian University of Technology has overcome key technical bottlenecks in perovskite solar cells, creating a new type of battery with high efficiency and stability, suitable for energy supply in near-space vehicles [2] Group 3: Focus on Health and Social Development - The Comprehensive Research Facility for Fusion Technology (CRAFT) has made significant progress, with its low-noise current drive system passing expert testing and acceptance [3] - The first major technological equipment project in the energy sector, a 300 MW variable-speed pumped storage motor's full-size AC collector system, has successfully completed verification tests, filling a gap in domestic manufacturing [3] - Scientific research increasingly targets major public health issues, with breakthroughs in anti-aging stem cell therapy and brain-machine interface technology aiding in the recovery of motor functions in patients [3]