偏振发光的钙钛矿纳米线薄膜
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(合肥工业大学 1. 电子科学与应用物理学院;2. 化学与化工学院;3. 光电技术研究院 特种显示与成像技术安徽省技术创新中心, 合肥 230009)

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安徽省杰出青年科学基金项目(1708085J09).通信作者:朱俊E-mail:jzhu@hfut.edu.cn


The Perovskite Nanowire Films with Polarized Luminescence
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(1. School of Electronic Science & Applied Physics;2. School of Chemistry and Chemical Engineering;3. Special Display and Imaging Technology Innovation Center of Anhui Province, Academy of Optoelectric Technology, Hefei University of Technology, Hefei 230009, CHN)

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    摘要:

    偏振发光薄膜在液晶显示中有潜在的应用,可有效降低能耗。制备偏振发光薄膜的关键在于对发光材料进行有序的取向。以各向异性的CsPbBr3纳米线为发光材料,使用偏心旋涂法对其进行取向并制备偏振发光薄膜。采用荧光光谱仪测试薄膜的偏振度,使用扫描电镜观察纳米线的取向形貌。通过改变偏心旋涂的基底、纳米线分散液的浓度和溶剂组分来优化纳米线薄膜的取向,获得了良好的荧光偏振度。

    Abstract:

    Polarized light-emitting films have potential applications in liquid crystal displays and can significantly reduce energy consumption. The key to the preparation of polarized light-emitting films lies in the ordered orientation of the light-emitting materials. In this paper, the anisotropic CsPbBr3 nanowires were used as the luminescent material, and the off-center spin-coating method was used to perpare the polarized luminescent film. The fluorescence spectrometer was used to test the degree of polarization of the film, and scanning electron microscope was used to observe the orientation of the nanowires. The orientation of the nanowire film was optimized by changing the substrates, nanowire dispersion concentration, and solvent composition, and a good fluorescence polarization degree was obtained.

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  • 收稿日期:2020-01-14
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  • 在线发布日期: 2020-08-07
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