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Highly Stable and Photoluminescent CsPbBr3/Cs4PbBr6 Composites for White-Light-Emitting Diodes and Visible Light Communication.
Rao, Longshi; Sun, Bin; Liu, Yang; Zhong, Guisheng; Wen, Mingfu; Zhang, Jiayang; Fu, Ting; Wang, Shuangxi; Wang, Fengtao; Niu, Xiaodong.
Afiliação
  • Rao L; Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China.
  • Sun B; Intelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou 515063, China.
  • Liu Y; Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China.
  • Zhong G; Intelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou 515063, China.
  • Wen M; Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China.
  • Zhang J; Intelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou 515063, China.
  • Fu T; Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China.
  • Wang S; Intelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou 515063, China.
  • Wang F; Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China.
  • Niu X; Intelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou 515063, China.
Nanomaterials (Basel) ; 13(2)2023 Jan 15.
Article em En | MEDLINE | ID: mdl-36678108
ABSTRACT
Inorganic lead halide perovskite is one of the most excellent fluorescent materials, and it plays an essential role in high-definition display and visible light communication (VLC). Its photochromic properties and stability determine the final performance of light-emitting devices. However, efficiently synthesizing perovskite with high quality and stability remains a significant challenge. Here, we develop a facile and environmentally friendly method for preparing high-stability and strong-emission CsPbBr3/Cs4PbBr6 composites using ultrasonication and liquid paraffin. Tuning the contents of liquid paraffin, bright-emission CsPbBr3/Cs4PbBr6 composite powders with a maximum PLQY of 74% were achieved. Thanks to the protection of the Cs4PbBr6 matrix and liquid paraffin, the photostability, thermostability, and polar solvent stability of CsPbBr3/Cs4PbBr6-LP are significantly improved compared to CsPbBr3 quantum dots and CsPbBr3/Cs4PbBr6 composites that were prepared without liquid paraffin. Moreover, the fabricated CsPbBr3/Cs4PbBr6-LP-based WLEDs show excellent luminescent performance with a power efficiency of 129.5 lm/W and a wide color gamut, with 121% of the NTSC and 94% of the Rec. 2020, demonstrating a promising candidate for displays. In addition, the CsPbBr3/Cs4PbBr6-LP-based WLEDs were also demonstrated in a VLC system. The results suggested the great potential of these high-performance WLEDs as an excitation light source to achieve VLC.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nanomaterials (Basel) Ano de publicação: 2023 Tipo de documento: Article País de afiliação: China
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nanomaterials (Basel) Ano de publicação: 2023 Tipo de documento: Article País de afiliação: China