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Low‐dimensional single‐cation formamidinium lead halide perovskites (FAm+2PbmBr3m+2): from synthesis to rewritable phase‐change memory film
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SYSNO ASEP 0542144 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Low‐dimensional single‐cation formamidinium lead halide perovskites (FAm+2PbmBr3m+2): from synthesis to rewritable phase‐change memory film Author(s) Minh, D. N. (KR)
Nguyen, L. A. T. (KR)
Trinh, C. T. (KR)
Oh, C. (KR)
Eom, S. (KR)
Vu, T. V. (KR)
Choi, J. (KR)
Sim, J. H. (KR)
Lee, K.-G. (KR)
Kim, J. (KR)
Cho, S. C. (KR)
Lee, S. U. (KR)
Cimrová, Věra (UMCH-V) RID, ORCID
Kang, Y. (KR)Article number 2011093 Source Title Advanced Functional Materials - ISSN 1616-301X
Roč. 31, č. 17 (2021)Number of pages 9 s. Language eng - English Country DE - Germany Keywords single-cation ; formamidinium ; perovskite Subject RIV CD - Macromolecular Chemistry OECD category Polymer science R&D Projects GC20-15498J GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UMCH-V - RVO:61389013 UT WOS 000624991600001 EID SCOPUS 85101905752 DOI 10.1002/adfm.202011093 Annotation Synthesis of 2D perovskites often demands long and bulky organic spacer cations, but they hamper optoelectronic properties of the resulting 2D perovskites. Novel low‐dimensional single‐cation perovskites with a general formula of FAm+2PbmBr3m+2 are prepared by using a quenching‐assisted solution process, which leads to the wide dimensional control over 1D FA3PbBr5 (m = 1), 2D FAm+2PbmBr3m+2 (m ≥ 2), and 3D FAPbX3 (m = ∞) perovskites simply by changing the composition of precursors. In this case, formamidinium (FA) acts as both an A‐site cation and spacer cation in FAm+2PbmBr3m+2. Unlike conventional 2D perovskites, FAm+2PbmBr3m+2 perovskites have (110) orientation. PVDF (poly(vinylidene fluoride)) preferentially stabilizes the low‐dimensional FAm+2PbmBr3m+2 phases, which is utilized to fabricate the stable FAm+2PbmBr3m+2‐PVDF composite films. The phase transitions from 1D and 2D to 3D are investigated in response to various stimuli, including humidity, ultraviolet, oxygen, and solvents, are exploited for rewritable phase‐change memory films. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2022 Electronic address https://onlinelibrary.wiley.com/doi/10.1002/adfm.202011093
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