The Impact of Phase Retention on the Structural and Optoelectronic Properties of Metal Halide Perovskites

Journal article (2016)

Authors

Anna Osherov Massachusetts Institute of Technology

E.M. Hutter ChemE/Opto-electronic Materials -

Krzysztof Galkowski University of Warsaw

Roberto Brenes Massachusetts Institute of Technology

Duncan K. Maude CNRS-UJF-UPS-INSA

Robin J. Nicholas University of Oxford

Paulina Plochocka CNRS-UJF-UPS-INSA

Vladimir Bulović Massachusetts Institute of Technology

T.J. Savenije ChemE/Opto-electronic Materials -

Samuel D. Stranks Cavendish Laboratory

Research Group

ChemE/Opto-electronic Materials () (TU Delft)

X-ray diffraction Optoelectronics Low-temperature Photoluminescence Perovskite solar cells

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Published Date

28-12-2016

Language

English

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Faculty

Applied Sciences

Department

ChemE/Chemical Engineering

Research Group

ChemE/Opto-electronic Materials

Abstract

The extent to which the soft structural properties of metal halide perovskites affect their optoelectronic properties is unclear. X-ray diffraction and micro-photoluminescence measurements are used to show that there is a coexistence of both tetragonal and orthorhombic phases through the low-temperature phase transition, and that cycling through this transition can lead to structural changes and enhanced optoelectronic properties.