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

Anna Osherov, Eline M. Hutter, Krzysztof Galkowski, Roberto Brenes, Duncan K. Maude, Robin J. Nicholas, Paulina Plochocka, Vladimir Bulović, Tom J. Savenije, Samuel D. Stranks*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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.
Original languageEnglish
Pages (from-to)10757-10763
Number of pages7
JournalAdvanced Materials
Volume28
Issue number48
DOIs
Publication statusPublished - 28 Dec 2016

Keywords

  • low-temperature
  • optoelectronics
  • perovskite solar cells
  • photoluminescence
  • X-ray diffraction

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