The Electrical and Optical Properties of Organometal Halide Perovskites Relevant to Optoelectronic Performance

Abstract

Organometal halide perovskites are under intense study for use in optoelectronics. Methylammonium and formamidinium lead iodide show impressive performance as photovoltaic materials; a premise that has spurred investigations into light-emitting devices and photodetectors. Herein, the optical and electrical material properties of organometal halide perovskites are reviewed. An overview is given on how the material composition and morphology are tied to these properties, and how these properties ultimately affect device performance. Material attributes and techniques used to estimate them are analyzed for different perovskite materials, with a particular focus on the bandgap, mobility, diffusion length, carrier lifetime, and trap-state density.

Organometal halide perovskites offer promise as high-performance solution-processed optoelectronic materials. Herein, the optical and electrical properties of these materials are reviewed, as well as how these relate to material aspects and their influence on device performance.

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