Cation-Induced Band-Gap Tuning in Organohalide Perovskites: Interplay of Spin–Orbit Coupling and Octahedra Tilting

Amat, Anna; Mosconi, Edoardo; Ronca, Enrico; Quarti, Claudio; Umari, Paolo; Khaja Nazeeruddin, Mohammad; Grätzel, Michaël; De Angelis, Filippo

doi:10.1021/nl5012992

Public

Cation-Induced Band-Gap Tuning in Organohalide Perovskites: Interplay of Spin–Orbit Coupling and Octahedra Tilting

Published in Nano Letters • May 5, 2014

Authors:

Anna Amat

Edoardo Mosconi

Enrico Ronca

Abstract

Organohalide lead perovskites have revolutionized the scenario of emerging photovoltaic technologies. The prototype MAPbI3 perovskite (MA = CH3NH3(+)) has dominated the field, despite only harvesting photons above 750 nm (∼1.6 eV). Intensive research efforts are being devoted to find new perovskites...

Subject

Perovskite (structure)

Formamidinium

Band gap

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