Indirect to direct bandgap transition in methylammonium lead halide perovskite
Energy & Environmental Science2016Vol. 10(2), pp. 509–515
Citations Over TimeTop 1% of 2016 papers
Tianyi Wang, Benjamin Daiber, Jarvist M. Frost, Sander A. Mann, Erik C. Garnett, Aron Walsh, Bruno Ehrler
Abstract
Unusually long charge carrier lifetime in methylammonium lead halide perovskites is a result of the Rashba-split indirect bandgap. At high pressure the bandgap becomes purely direct, with shorter carrier lifetime and higher radiative efficiency.
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