• Optical Instruments
  • Vol. 44, Issue 5, 77 (2022)
Pengfei MA and Gongjie XU*
Author Affiliations
  • School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
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    DOI: 10.3969/j.issn.1005-5630.2022.005.010 Cite this Article
    Pengfei MA, Gongjie XU. Improvement of the optical properties of two-dimensional perovskite (FPEA)2PbI4 by polymer encapsulation[J]. Optical Instruments, 2022, 44(5): 77 Copy Citation Text show less

    Abstract

    The environmental factors, such as light radiation, water vapor, and oxygen, induce the degradation of two-dimensional perovskites, and therefore its stability greatly limits the further development and marketization of this material. Taking advantage of the strong stability and hydrophobicity of fluoride, fluorophenylethylamine was introduced into the organic layer of two-dimensional perovskites, which could effectively improve the stability of two-dimensional perovskites, but the fluorescence efficiency was partly reduced. To solve this problem, polystyrene (PS), polymethylmethacrylate (PMMA) and cycloolefin polymer (COP) were employed to encapsulate the two-dimensional perovskite film. The photoluminescence intensity was improved by 2.2, 1.3 and 1.4 times, respectively. The light stability was improved by 3.3, 3.1 and 3.9 times, respectively. Furthermore the humidity stability was also verified. This study provides a new idea for the development of two-dimensional perovskite films in optoelectronic devices.
    Pengfei MA, Gongjie XU. Improvement of the optical properties of two-dimensional perovskite (FPEA)2PbI4 by polymer encapsulation[J]. Optical Instruments, 2022, 44(5): 77
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