(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)
(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)
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.