Issue 29, 2016

Grain rotation and lattice deformation during perovskite spray coating and annealing probed in situ by GI-WAXS

Abstract

We report for the first time on grain rotation in CH3NH3PbI3 perovskite films for ∼12% efficient planar solar cells and present a new method for investigating their texture evolution during thermal annealing. Our technique is based on in situ 2D grazing incidence wide-angle X-ray scattering (GI-WAXS) and employs a 10 keV wide-focussed X-ray beam to simultaneously probe a large number of grains. The ability to track the texture dynamics from a statistically relevant number of spots diffracting from single grains during thermal annealing and in grazing incidence geometry can have applications understanding the processing dynamics of a range of new materials.

Graphical abstract: Grain rotation and lattice deformation during perovskite spray coating and annealing probed in situ by GI-WAXS

Supplementary files

Article information

Article type
Paper
Submitted
26 Apr 2016
Accepted
02 Jun 2016
First published
02 Jun 2016
This article is Open Access
Creative Commons BY license

CrystEngComm, 2016,18, 5448-5455

Author version available

Grain rotation and lattice deformation during perovskite spray coating and annealing probed in situ by GI-WAXS

S. Lilliu, J. Griffin, A. T. Barrows, M. Alsari, B. Curzadd, T. G. Dane, O. Bikondoa, J. E. Macdonald and D. G. Lidzey, CrystEngComm, 2016, 18, 5448 DOI: 10.1039/C6CE00965D

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