Metal Acetylacetonate Series in Interface Engineering for Full Low-Temperature-Processed, High-Performance, and Stable Planar Perovskite Solar Cells with Conversion Efficiency over 16% on 1 cm<sup>2</sup> Scale.

Chen, Wei; Xu, Leiming; Feng, Xiyuan; Jie, Jiansheng; He, Zhubing · Adv Mater · 2017

basic_science · Level V

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Abstract

A series of metal acetylacetonates produced by a full low-temperature (below 100 °C) process are successfully employed to obtain both "multistable" and high-performance planar-inverted perovskite solar cells. All the three kinds of champion cells in small area exhibit over 18% in conversion-efficiency with negligible hysteresis, along with a conversion efficiency above 16% for planar PSCs in an aperture area of over 1 cm<sup>2</sup> .