Direct observation of mode-specific phonon-band gap coupling in methylammonium lead halide perovskites

Methylammonium lead iodide perovskite, a promising material for efficient photovoltaics, shows a unique temperature dependence of its optical properties. Kim et al. quantify the coupling between the optical gap and a lattice phonon at 1 THz, which favorably contributes to the thermal variation of th...

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Autores principales:	Heejae Kim, Johannes Hunger, Enrique Cánovas, Melike Karakus, Zoltán Mics, Maksim Grechko, Dmitry Turchinovich, Sapun H. Parekh, Mischa Bonn
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Science Q
Acceso en línea:	https://doaj.org/article/f964e7c1d0934ab3ba9a9484ddbb77f8
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spelling	oai:doaj.org-article:f964e7c1d0934ab3ba9a9484ddbb77f82021-12-02T14:40:33ZDirect observation of mode-specific phonon-band gap coupling in methylammonium lead halide perovskites10.1038/s41467-017-00807-x2041-1723https://doaj.org/article/f964e7c1d0934ab3ba9a9484ddbb77f82017-09-01T00:00:00Zhttps://doi.org/10.1038/s41467-017-00807-xhttps://doaj.org/toc/2041-1723Methylammonium lead iodide perovskite, a promising material for efficient photovoltaics, shows a unique temperature dependence of its optical properties. Kim et al. quantify the coupling between the optical gap and a lattice phonon at 1 THz, which favorably contributes to the thermal variation of the gap.Heejae KimJohannes HungerEnrique CánovasMelike KarakusZoltán MicsMaksim GrechkoDmitry TurchinovichSapun H. ParekhMischa BonnNature PortfolioarticleScienceQENNature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Science Q
spellingShingle	Science Q Heejae Kim Johannes Hunger Enrique Cánovas Melike Karakus Zoltán Mics Maksim Grechko Dmitry Turchinovich Sapun H. Parekh Mischa Bonn Direct observation of mode-specific phonon-band gap coupling in methylammonium lead halide perovskites
description	Methylammonium lead iodide perovskite, a promising material for efficient photovoltaics, shows a unique temperature dependence of its optical properties. Kim et al. quantify the coupling between the optical gap and a lattice phonon at 1 THz, which favorably contributes to the thermal variation of the gap.
format	article
author	Heejae Kim Johannes Hunger Enrique Cánovas Melike Karakus Zoltán Mics Maksim Grechko Dmitry Turchinovich Sapun H. Parekh Mischa Bonn
author_facet	Heejae Kim Johannes Hunger Enrique Cánovas Melike Karakus Zoltán Mics Maksim Grechko Dmitry Turchinovich Sapun H. Parekh Mischa Bonn
author_sort	Heejae Kim
title	Direct observation of mode-specific phonon-band gap coupling in methylammonium lead halide perovskites
title_short	Direct observation of mode-specific phonon-band gap coupling in methylammonium lead halide perovskites
title_full	Direct observation of mode-specific phonon-band gap coupling in methylammonium lead halide perovskites
title_fullStr	Direct observation of mode-specific phonon-band gap coupling in methylammonium lead halide perovskites
title_full_unstemmed	Direct observation of mode-specific phonon-band gap coupling in methylammonium lead halide perovskites
title_sort	direct observation of mode-specific phonon-band gap coupling in methylammonium lead halide perovskites
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/f964e7c1d0934ab3ba9a9484ddbb77f8
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Direct observation of mode-specific phonon-band gap coupling in methylammonium lead halide perovskites

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