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07 Jul 01:28

[ASAP] Promoting the Efficiency and Stability of CsPbIBr2-Based All-Inorganic Perovskite Solar Cells through a Functional Cu2+ Doping Strategy

by Pengyun Liu†, Xiaoqing Yang‡, Yonghui Chen‡, Huimin Xiang‡, Wei Wang*‡, Ran Ran‡, Wei Zhou‡, and Zongping Shao*†‡

TOC Graphic

ACS Applied Materials & Interfaces
DOI: 10.1021/acsami.0c04938
24 Sep 08:54

Monolithic all-perovskite tandem solar cells with 24.8% efficiency exploiting comproportionation to suppress Sn(ii) oxidation in precursor ink

by Renxing Lin

Nature Energy, Published online: 23 September 2019; doi:10.1038/s41560-019-0466-3

Improvements in the efficiency and stability of low-bandgap perovskite solar cells are key to enabling all-perovskite solar cells. Here, Lin et al. use metallic tin to prevent oxidation in such low-gap perovskite and demonstrate 24.8%-efficient tandems that are stable for over 400 h under operating conditions.
05 Sep 07:01

Wide-gap non-fullerene acceptor enabling high-performance organic photovoltaic cells for indoor applications

by Yong Cui

Nature Energy, Published online: 19 August 2019; doi:10.1038/s41560-019-0448-5

Organic photovoltaics are promising for indoor applications, yet their voltage losses are large and limit device performance. Here, Cui et al. present a wide-gap non-fullerene acceptor that retains a voltage of 1.1 V at low light intensities enabling an efficiency of 26.1%.