Study on Luminescence Properties and Stability of CsPbBr<sub>3</sub>/CMS-Na Starch

DONG Qizheng; TIAN Binglong; ZHANG Wenbo; HUANG Xinyi; HUANG Cheng

doi:10.6054/j.jscnun.2023034

Journal of South China Normal University (Natural Science Edition) > 2023 > 55(3): 39-45. > DOI: 10.6054/j.jscnun.2023034

DONG Qizheng, TIAN Binglong, ZHANG Wenbo, HUANG Xinyi, HUANG Cheng. Study on Luminescence Properties and Stability of CsPbBr₃/CMS-Na Starch[J]. Journal of South China Normal University (Natural Science Edition), 2023, 55(3): 39-45. DOI: 10.6054/j.jscnun.2023034

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Study on Luminescence Properties and Stability of CsPbBr₃/CMS-Na Starch

School of Materials Science and Engineering, Lanzhou University of Technology/State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China

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Received Date: May 22, 2022
Available Online: August 25, 2023

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Abstract

Abstract

CsPbBr₃/CMS-Na composites were synthesized by in-situ growth method for the first time. The crystal structure, morphology and luminescence properties of the samples were characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy and fluorescence spectrophotometer. The results show that the photoluminescence spectra of CsPbBr₃/CMS-Na composites behave an ordered blue-shift of 518 to 502 nm. The fluorescence intensity is significantly increased, and the green light emission is brightest when the mass ratio of CsPbBr₃ to CMS-Na is 1 ∶ 2. The CsPbBr₃/CMS-Na composites show excellent stability, remaining 67.6% of the initial brightness after 21 d in air. The results have potential application value for CsPbBr₃ quantum dots in the field of lighting and display.
- CsPbBr₃ QDs,
- luminous intensity,
- stability,
- composite materials

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References (25)

References

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