volume 1, issue 2, P272-276 2019
DOI: 10.1021/acsmaterialslett.9b00217
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Abstract: Films made of colloidal CsPbBr 3 nanocrystals packed in isolated or densely-packed superlattices display a remarkably high degree of structural coherence. The structural coherence is revealed by the presence of satellite peaks accompanying Bragg reflections in wide-angle X-ray diffraction experiments in parallel-beam reflection geometry. The satellite peaks, also called “superlattice reflections”, arise from the interference of X-rays diffracted by the atomic planes of the orthorhombic p…

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