GIWAXS Using Micro Beam Applied in Halide Perovskite Films for High Spectral Resolution and Mapping Capability

GIWAXS Using Micro Beam Applied in Halide Perovskite Films for High Spectral Resolution and Mapping Capability | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 1 September 2025 V1 Latest version Share on GIWAXS Using Micro Beam Applied in Halide Perovskite Films for High Spectral Resolution and Mapping Capability Authors : Meirong Fu , Bingchen He , Liujiang Zhang , Zhenhuang Su 0000-0003-0026-2601 [email protected] , Yanfeng Miao , Qihang Sun , Jihao Zhang , … Show All … , Sisheng Wang , Zhijun Wang , Xingya Wang , Yuzhu Wang , Bo Sun , Wen Wen , Yixin Zhao 0000-0002-8663-9993 , Chenyue Wang , and Xingyu Gao Show Fewer Authors Info & Affiliations https://doi.org/10.22541/au.175675324.49737236/v1 169 views 83 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Grazing-incidence wide-angle X-ray scattering (GIWAXS) today has become an essential tool for investigating halide perovskite film microstructures. Nevertheless, GIWAXS employing hundred-micrometer X-ray beams inevitably suffers from footprint effects manifesting as diffraction peak broadening and spectral distortions. Herein, we demonstrate that micro beam GIWAXS (μ-GIWAXS) effectively mitigates these footprint effects, achieving enhanced spectral resolution and accuracy. By systematically tuning the grazing incidence angle, we quantitatively illustrated how the footprint length contributes to diffraction peak broadening in μ-GIWAXS. In addition, we optimize μ-GIWAXS data acquisition through beam-direction-perpendicular fly scanning, which improves data quality while preserving resolution and minimizing radiation damage by reducing X-ray exposure time at individual spots. Through extended exposure experiments under various conditions, we confirm that a nitrogen environment effectively suppresses radiation damage. Furthermore, μ-GIWAXS enables spatial mapping of perovskite film microstructural characteristics including crystallinity, preferential orientation, PbI₂ concentration and lattice strain - critical information for addressing inhomogeneity challenges in large-area perovskite devices. Given the growing demand in scalable perovskite optoelectronic applications, μ-GIWAXS warrants increased attention due to its dual advantages of superior spectral resolution and spatially resolved analysis capabilities. Supplementary Material File (manuscript.docx) Download 3.29 MB Information & Authors Information Version history V1 Version 1 01 September 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords footprint effects mapping perovskite radiation damage μ-giwaxs Authors Affiliations Meirong Fu Shanghai Institute of Applied Physics Chinese Academy of Sciences View all articles by this author Bingchen He Shanghai Advanced Research Institute Chinese Academy of Sciences View all articles by this author Liujiang Zhang Wuhan University View all articles by this author Zhenhuang Su 0000-0003-0026-2601 [email protected] Shanghai Institute of Applied Physics Chinese Academy of Sciences View all articles by this author Yanfeng Miao Shanghai Jiao Tong University View all articles by this author Qihang Sun Wuhan University View all articles by this author Jihao Zhang Shanghai Institute of Applied Physics Chinese Academy of Sciences View all articles by this author Sisheng Wang Shanghai Advanced Research Institute Chinese Academy of Sciences View all articles by this author Zhijun Wang Shanghai Advanced Research Institute Chinese Academy of Sciences View all articles by this author Xingya Wang Shanghai Advanced Research Institute Chinese Academy of Sciences View all articles by this author Yuzhu Wang Shanghai Advanced Research Institute Chinese Academy of Sciences View all articles by this author Bo Sun Shanghai Advanced Research Institute Chinese Academy of Sciences View all articles by this author Wen Wen Shanghai Advanced Research Institute Chinese Academy of Sciences View all articles by this author Yixin Zhao 0000-0002-8663-9993 Shanghai Jiao Tong University View all articles by this author Chenyue Wang Shanghai Advanced Research Institute Chinese Academy of Sciences View all articles by this author Xingyu Gao Shanghai Advanced Research Institute Chinese Academy of Sciences View all articles by this author Metrics & Citations Metrics Article Usage 169 views 83 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Meirong Fu, Bingchen He, Liujiang Zhang, et al. GIWAXS Using Micro Beam Applied in Halide Perovskite Films for High Spectral Resolution and Mapping Capability. Authorea . 01 September 2025. DOI: https://doi.org/10.22541/au.175675324.49737236/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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