Dual-Mode Luminescence from Polyacrylonitrile-Stabilized CsPbX3 (X = Br and I) Nanocrystals Triggered by NaYF4:Yb/Ln (Ln = Er and Tm) Upconversion Nanoparticles: Implications for Anticounterfeiting and Optical Thermometry
Mingye Ding,
Xiaoyan Wang,
Yinbiao Shi
et al.
Abstract:Owing to their excellent photoelectric and optical properties, lead halide perovskite quantum dots (PeQDs) have attracted great attention and have broad applications in various fields. However, the shortcomings of poor stability and shortwavelength (ultraviolet/visible) excitation restrict their practical applications. Herein, to address the above issues, we report a polyacrylonitrile-based composite film containing CsPbX 3 (X = Br and I) PeQDs and β-NaYF 4 :Yb/Ln (Ln = Tm and Er) upconversion nanoparticles (U… Show more
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