High-Performance Planar Perovskite Optoelectronic Devices: A Morphological and Interfacial Control by Polar Solvent Treatment.

Yu, Jae Choul; Kim, Da Bin; Baek, Gyoelim; Lee, Bo Ram; Jung, Eui Dae; Lee, Seungjin; Chu, Jae Hwan; Lee, Doh-Kwon et al. · Adv Mater · 2015

basic_science · Level V

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Abstract

Highly efficient planar perovskite optoelectronic devices are realized by amine-based solvent treatment on compact TiO2 and by optimizing the morphology of the perovskite layers. Amine-based solvent treatment between the TiO2 and the perovskite layers enhances electron injection and extraction and reduces the recombination of photogenerated charges at the interface.