Emission color tuning of core/shell upconversion nanoparticles through modulation of laser power or temperature.

Emission color tuning of core/shell upconversion nanoparticles through modulation of laser power or temperature.

Nanoscale (2017-08-15)

Qiyue Shao, Gongtuo Zhang, Lilai Ouyang, Yanqing Hu, Yan Dong, Jianqing Jiang

要旨

Upconversion nanoparticles (UCNPs) are an excellent choice to construct security features against counterfeiting, owing to their unique NIR-to-VIS upconversion luminescence (UCL) characteristics. However, the application of upconversion materials is limited, due to their single and invariant emission colors. Herein, the temperature-dependent UCL properties of NaGdF

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