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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
实验结果显示,该电池在1000勒克斯照度(相当于典型办公室光照水平)的室内光下,实现了37.6%的 光电转换效率,创下带隙为1.75eV的钙钛矿太阳能电池在室内光照条件下的世界纪录。 在长期稳定性测试中,该电池在持续运行100多天后仍保持其初始性能的92%;在更为严苛的条件下 ——55℃高温及连续强光照射300小时后,新型电池仍维持76%的初始性能,而对照组性能则下降至初 始值的47%。这些结果充分证明了该技术在实际应用环境中的可靠性和耐久性。 (文章来源:科技日报) 英国伦敦大学学院领导的国际团队开发出一种新型耐用的太阳能电池,在室内光照条件下,创出光电转 换效率新纪录。该电池有望为键盘、遥控器、警报器和各类传感器等小型电子设备供电,从而使其摆脱 对传统电池的依赖。研究成果发表在最新一期《先进功能材料》杂志上。 该电池采用了在室外太阳能电池领域展现出巨大潜力的钙钛矿材料。与传统的硅基太阳能电池不同,钙 钛矿材料的成分可被调控,从而可优化其对室内光源特定波长的吸收能力,并使其在低光照条件下依然 具备良好的能量转换效率。然而,钙钛矿材料长期面临一个关键挑战是,其晶体结构中存在被称为"陷 阱"的微观缺陷,这些缺陷 ...
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]