Water-Induced Dimensionality Reduction in Metal-Halide Perovskites
- Authors
- Turedi, Bekir; Lee, Kwang Jae; Dursun, Ibrahim; Alamer, Badriah; Wu, Zhennan; Alarousu, Erkki; Mohammed, Omar F.; Cho, Namchul; Bakr, Osman M.
- Issue Date
- 28-Jun-2018
- Publisher
- American Chemical Society
- Citation
- The Journal of Physical Chemistry C, v.122, no.25, pp 14128 - 14134
- Pages
- 7
- Journal Title
- The Journal of Physical Chemistry C
- Volume
- 122
- Number
- 25
- Start Page
- 14128
- End Page
- 14134
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/18630
- DOI
- 10.1021/acs.jpcc.8b01343
- ISSN
- 1932-7447
1932-7455
- Abstract
- Metal-halide perovskite materials are highly attractive materials for optoelectronic applications. However, the instability of perovskite materials caused by moisture and heat-induced degradation impairs future prospects of using these materials. Here we employ water to directly transform films of the three-dimensional (3D) perovskite CsPbBr3 to stable two-dimensional (2D) perovskite-related CsPb2Br5. A sequential dissolution - recrystallization process governs this water-induced transformation under PbBr2 rich conditions. We find that these postsynthesized 2D perovskite-related material films exhibit excellent stability against humidity and high photoluminescence quantum yield. We believe that our results provide a new synthetic method to generate stable 2D perovskite-related materials that could be applicable for light emitting device applications.
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Collections - SCH Media Labs > Department of Energy Systems Engineering > 1. Journal Articles
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