具有优化带隙的钙钛矿-钙钛矿叠层光伏电池
材料科学
2017-01-24 v2
摘要
我们展示了具有理想匹配带隙的四端和二端钙钛矿-钙钛矿叠层太阳能电池。我们开发了一种红外吸收带隙为 1.2 eV 的钙钛矿 ，其效率可达 14.8%。通过将此材料与较宽带隙的 材料结合，我们实现了单片二端叠层效率 17.0%，开路电压超过 1.65 伏。我们还制备了机械堆叠的四端叠层电池，效率达 20.3%。关键在于，我们发现红外吸收钙钛矿电池表现出优异的热稳定性和大气稳定性，这是锡基钙钛矿前所未有的。该器件架构和材料组合将使“全钙钛矿”薄膜太阳能电池长期以最低成本达到最高效率。
引用
@article{arxiv.1608.03920,
title = {Perovskite-perovskite tandem photovoltaics with optimized bandgaps},
author = {Giles E. Eperon and Tomas Leijtens and Kevin A. Bush and Rohit Prasanna and Thomas Green and Jacob Tse-Wei Wang and David P. McMeekin and George Volonakis and Rebecca L. Milot and Richard May and Axel Palmstrom and Daniel J. Slotcavage and Rebecca A. Belisle and Jay B. Patel and Elizabeth S. Parrott and Rebecca J. Sutton and Wen Ma and Farhad Moghadam and Bert Conings and Aslihan Babayigit and Hans-Gerd Boyen and Stacey Bent and Feliciano Giustino and Laura M. Herz and Michael B. Johnston and Michael D. McGehee and Henry J. Snaith},
journal= {arXiv preprint arXiv:1608.03920},
year = {2017}
}