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Rubidium Multication Perovskite with Optimized Bandgap for Perovskite-Silicon Tandem with over 26% Efficiency

Duong, The; Wu, Yiliang; Shen, Heping; Peng, Jun; Fu, Xiao; Jacobs, Daniel; Wang, Er-Chien (Eric); Kho, Teng; Fong, Kean; Stocks, Matthew; Franklin, Evan; Blakers, Andrew; Zin, Ngwe; McIntosh, Keith; Li, Wei; Cheng, Yi-Bing; White, Thomas; Weber, Klaus; Catchpole, Kylie


Rubidium (Rb) is explored as an alternative cation to use in a novel multication method with the formamidinium/methylammonium/cesium (Cs) system to obtain 1.73 eV bangap perovskite cells with negligible hysteresis and steady state efficiency as high as 17.4%. The study shows the beneficial effect of Rb in improving the crystallinity and suppressing defect migration in the perovskite material. The light stability of the cells examined under continuous illumination of 12 h is improved upon the...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Advanced Energy Materials
DOI: 10.1002/aenm.201700228


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