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Wide-coverage and Efficient NIR Emission from Single-component Nanophosphors through Shaping Multiple Metal-halide Packages.
Li, Xin; Shen, Xinyu; Lu, Min; Wu, Jinlei; Zhong, Yuan; Wu, Zhennan; Yu, William W; Gao, Yanbo; Hu, Junhua; Zhu, Jinyang; Zhang, Yu; Bai, Xue.
Afiliación
  • Li X; State Key Laboratory of Integrated Optoelectronics and College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China.
  • Shen X; State Key Laboratory of Integrated Optoelectronics and College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China.
  • Lu M; State Key Laboratory of Integrated Optoelectronics and College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China.
  • Wu J; State Key Laboratory of Integrated Optoelectronics and College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China.
  • Zhong Y; State Key Laboratory of Integrated Optoelectronics and College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China.
  • Wu Z; State Key Laboratory of Integrated Optoelectronics and College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China.
  • Yu WW; School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
  • Gao Y; State Key Laboratory of Integrated Optoelectronics and College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China.
  • Hu J; State Centre for International Cooperation on Designer Low-Carton & Environmental Materials School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China.
  • Zhu J; State Centre for International Cooperation on Designer Low-Carton & Environmental Materials School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China.
  • Zhang Y; State Key Laboratory of Integrated Optoelectronics and College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China.
  • Bai X; State Key Laboratory of Integrated Optoelectronics and College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China.
Angew Chem Int Ed Engl ; 62(14): e202217832, 2023 Mar 27.
Article en En | MEDLINE | ID: mdl-36760216
ABSTRACT
Wide-coverage near infrared (NIR) phosphor-converted 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 (Ln3+ ) ions doped Cs2 M(In0.95 Sb0.05 )Cl6 (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 Cs2 M(In1-x Sbx )Cl6 NCs can break the forbidden of f-f transition of Ln3+ , thus increasing their radiative transition rates and simultaneously boosting the energy transfer efficiency from host to Ln3+ . Finally, the wide-coverage NIR LEDs based on Sm3+ , Nd3+ , Er3+ -tridoped Cs2 K0.5 Rb0.5 (In0.95 Sb0.05 )Cl6 NCs are fabricated and employed in the multiplex gas sensing and night-vision application.
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2023 Tipo del documento: Article País de afiliación: China
Texto completo
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PubMed Links
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2023 Tipo del documento: Article País de afiliación: China