学术活动

学术报告:Towards Efficient All-Perovskite Tandem Solar Cells(全钙钛矿高效叠层太阳能电池)

来源:武汉大学物理科学与技术学院 发布时间:2018-05-14 08:57:05 点击次数:

报告题目:Towards Efficient All-Perovskite Tandem Solar Cells(全钙钛矿高效叠层太阳能电池)
报告人:Yanfa Yan (鄢炎发)
(Department of Physics and Astronomy and Wright Center for Photovoltaics Innovation and Commercialization, The University of Toledo, Toledo, Ohio 43606, USA)
报告时间:2018年5月20日(周日)19:30
报告地点:物理学院新楼5楼多功能厅
报告摘要:
We have developed reproduciable processes to fabricate efficient mixed tin-lead iodide low-bandgap (~1.25 eV) and lead mixed iodide and bromide wide-bandgap (~1.75 eV) perovskite solar cells, which enabled the fabrication of efficient all-perovskite tandem solar cells. When mechanically stacked with a semitransparent ~1.575eV bandgap perovskite top cell and a ~1.25 eV bandgap perovskite bottom cell, our best all-perovskite 4-terminaltandem solar cell shows a power conversionefficiencyof 23.0%. For the first time, an all-perovskite tandem solar cell shows a PCE higher than the world-record PCE of single-junction perovskite solar cells. Through careful optimization of novel interconnecting layers, we have realized high-efficiency all-perovskite monolithic tandem solar cells. Our results demonstrate the potential of low-cost all-perovskite tandem solar cells for achieving ultra-high power conversion efficiencies.

 

 

 

邀请人:方国家教授

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