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

Methylammonium lead iodide perovskite is an outstanding semiconductor for photovoltaics. One of its intriguing peculiarities is that the band gap of this perovskite increases with increasing lattice temperature. Despite the presence of various thermally accessible phonon modes in this soft material,...

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Detalles Bibliográficos
Autores principales: Kim, Heejae, Hunger, Johannes, Cánovas, Enrique, Karakus, Melike, Mics, Zoltán, Grechko, Maksim, Turchinovich, Dmitry, Parekh, Sapun H., Bonn, Mischa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5612932/
https://www.ncbi.nlm.nih.gov/pubmed/28947824
http://dx.doi.org/10.1038/s41467-017-00807-x