GIWAXS using microbeam applied in halide perovskite films for high spectral resolution and mapping capability

Fu, M.; He, B.; Zhang, L.; Su, Z.; Miao, Y.; Sun, Q.; Zhang, J.; Wang, S.; Wang, Z.; Wang, X.; Wang, Y.; Sun, B.; Wen, W.; Zhao, Y.; Wang, C.; Gao, X.

doi:10.1107/S1600577526004303

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Figure 3
(a, b) Contour plots of the µ-GIWAXS 1D intensity profile as functions of X-ray irradiation time for MAPbI₃ films in (a) nitrogen and (b) air. (c) The MAPbI₃ (110) diffraction peak position as functions of time derived from (a) and (b). (d) The µ-GIWAXS 1D intensity profile of the film measured in air at the beginning and at 60 min. (e) The evolution of MAPbI₃ (110) and PbI₂ peak intensity for the MAPbI₃ film under X-ray irradiation in air and nitrogen environments. (f) The corresponding CsFAMAPbI₃ (001) and PbI₂ peak intensity variations for the CsFAMAPbI₃ film under identical irradiation conditions. To enhance the visual clarity, the PbI₂ content (q = 8.87–9.12 nm⁻¹) has been magnified 30 times in (a), (b), (e) and (f). (g) The CsFAMAPbI₃ (001) peak intensity as a function of irradiation time at beamlines BL03HB and BL17UM, with flux density increased from the lowest (B1) to the highest (B4).

JOURNAL OF
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ISSN: 1600-5775

Volume 33| Part 4| July 2026|

https://doi.org/10.1107/S1600577526004303

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