Video 22 | Perovskite tracks, cluster 4 (spray coated sample)
Автор: S L
Загружено: 2017-07-09
Просмотров: 28
DOI: 10.1039/C6CE00965D. Supporting Information. http://pubs.rsc.org/en/Content/Articl...
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.
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