Ultralight flexible perovskite solar cells
Hong Zhang a b c, Michael Graetzel b, Wallace Choy a
a The Uiversity of Hong Kong
b EPFL, Switzerland
c Fudan University, Room S325, Physics Building, Fudan University (Jiangwan Campus), No 2205 Songhu Road., Shanghai, China
Proceedings of New Generation Photovoltaics for Space (PVSPACE)
Online, Spain, 2022 June 21st - 22nd
Organizers: Narges Yaghoobi Nia, Aldo Di Carlo, Luigi Schirone and Mahmoud Zendehdel
Invited Speaker, Hong Zhang, presentation 003
DOI: https://doi.org/10.29363/nanoge.pvspace.2022.003
Publication date: 8th June 2022

Ultralight flexible perovskite solar cells (PSCs) have attracted extensive attention as power sources for space applications. Currently, there is still a certain gap between the power conversion efficiency (PCE) of flexible and rigid PSCs. In our work, we developed a scalable low-temperature solution process to fabricate efficient and stable ultralight flexible PSCs. The PSCs show a high PCE of 25% and 22%, with no hysteresis on rigid and flexible substrates, respectively, which are the best efficiencies reported to date for PSCs fabricated by low-temperature solution-processed techniques. The flexible PSCs show a remarkable power-per-weight of 36 W g-1 and superior operational stability.

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