Fig. 2: Crystal composition of perovskite films. | Nature Communications

Fig. 2: Crystal composition of perovskite films.

From: Large cation ethylammonium incorporated perovskite for efficient and spectra stable blue light-emitting diodes

Fig. 2

a Schematics showing the EA cation doping in the perovskite lattice to replace Cs+ in quasi-2D perovskite. b X-ray diffraction (XRD) pattern of the quasi-2D perovskite with different ratio of EABr. The inset is amplified XRD pattern of samples from 29° to 32°. c XRD patterns of the Cs1−xEAxPbBr3 (0 ≤ x ≤ 1) perovskite thin films. d 1H NMR spectra of the EABr, PEABr powers and quasi-2D perovskite with or without EABr.

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