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Wide‐coverage and Efficient NIR Emission from Single‐component Nanophosphors through Shaping Multiple Metal‐halide Packages by Xin Li; Xinyu Shen; Min Lu; Jinlei Wu; Yuan Zhong; Zhennan Wu; William W. Yu; Yanbo Gao; Junhua Hu; Jinyang Zhu; Yu Zhang; Xue Bai is a Chemistry article available to read on EtoBox.
What is Wide‐coverage and Efficient NIR Emission from Single‐component Nanophosphors through Shaping Multiple Metal‐halide Packages about?
Wide-coverage near infrared (NIR) phosphorconverted LEDs possess promising potential for practical applications, but little is developed towards the efficient and wide-coverage NIR phosphors. Here, we report the single-component lanthanide (Ln 3 + ) ions doped Cs 2 M(In 0.95 Sb 0.05 )Cl 6 (M = alkali metal) nanocrystals (NCs), exhibiting emission from 850 to 1650 nm with high photoluminescence quantum yield of 20.3 %, which is accomplished by shaping the multiple metal halide octahedra of double perovskite via the simple alkali metal substitution. From Judd-Ofelt theoretical calculation and spectroscopic investigations, the shaping of metal halide octahedra in Cs 2 M(In 1À x Sb x )Cl 6 NCs can break the forbidden of f-f transition of Ln 3 + , thus increasing their radiative transition rates and simultaneously boosting the energy transfer efficiency from host to Ln 3 + . Finally, the wide-coverage NIR LEDs based on Sm 3 + , Nd 3 + , Er 3 + -tridoped Cs 2 K 0.5 Rb 0.5 (In 0.95 Sb 0.05 )Cl 6 NCs are fabricated and employed in the multiplex gas sensing and night-vision application.
Who reads Wide‐coverage and Efficient NIR Emission from Single‐component Nanophosphors through Shaping Multiple Metal‐halide Packages?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Xin Li; Xinyu Shen; Min Lu; Jinlei Wu; Yuan Zhong; Zhennan Wu; William W. Yu; Yanbo Gao; Junhua Hu; Jinyang Zhu; Yu Zhang; Xue Bai
- Publisher
- Wiley
- Published
- 2023
- Language
- EN
- Field
- Chemistry (Physical Sciences)