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Xu Y, Dong W, Su P, Lang T, He H, Jiang H, Jia B, Liu X, Han T. Mn-Doped M 2CdCl 4 (M = CH 3NH 3+, C 2H 8N +, and C 3H 10N +) Layered Hybrid Perovskite and Its Flexible Film Based on Simple Mechanochemical Synthesis. Inorg Chem 2024; 63:2562-2568. [PMID: 38268414 DOI: 10.1021/acs.inorgchem.3c03751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Layered hybrid perovskites show significant advantages in the field of optoelectronics. However, the low quantum efficiency and complex preparation methods limit their applications. In this work, we developed a series of perovskite powders with a two-dimensional (2D) layered structure of organic-inorganic hybrid metal halides M2CdCl4:x%Mn (M = CH3NH3+, C2H8N+, C3H10N+) via facile mechanochemical methods. The prepared manganese Mn-doped MA2CdCl4 produces orange emission at 605 nm under both 254 and 420 nm excitation, which originates from a dual excitation channel competition mechanism, and its excitation channel could be changed with the increase of Mn2+ ion concentration. Typically, MA2CdCl4:20%Mn powder exhibits high photoluminescence quantum yield (PLQY) close to 90% at 605 nm due to the organic amine ions enlarging the Mn-Mn interlayer distances. In addition, we prepared MA2CdCl4:x%Mn@PVA flexible films, which also exhibit good luminescence at 254 nm excitation and were unexpectedly found to have a better response to Cs+, which could be a candidate for anticounterfeiting applications.
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Affiliation(s)
- Yuchen Xu
- School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Wenxiao Dong
- School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, P. R. China
| | - Peng Su
- Chongqing Key Laboratory of Materials Surface & Interface Science, Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, Sichuan 402160, China
| | - Tianchun Lang
- Chongqing Key Laboratory of Materials Surface & Interface Science, Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, Sichuan 402160, China
| | - Huichao He
- School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Hanmei Jiang
- School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Bi Jia
- School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Xiaoyan Liu
- School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Tao Han
- School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
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