Ultraviolet-pumped white light emissive carbon dot based phosphors for light-emitting devices and visible light communication

Zhen Tian; Pengfei Tian; Xiaojie Zhou; Gufan Zhou; Shiliang Mei; Wanlu Zhang; Xutao Zhang; Di Li; Ding Zhou; Ruiqian Guo; Songnan Qu; Andrey L. Rogach

doi:10.1039/C9NR00224C

Ultraviolet-pumped white light emissive carbon dot based phosphors for light-emitting devices and visible light communication†

Zhen Tian,^ab Pengfei Tian,^c Xiaojie Zhou,^c Gufan Zhou,^c Shiliang Mei,^c Wanlu Zhang,^c Xutao Zhang,

^ab Di Li,^a Ding Zhou,^a Ruiqian Guo,*^c Songnan Qu

*^ad and Andrey L. Rogach

^e

Author affiliations

* Corresponding authors

^a State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

^b University of Chinese Academy of Sciences, Beijing 100049, China

^c Engineering Research Center of Advanced Lighting Technology, Ministry of Education, Institute of Future Lighting, Academy for Engineering and Technology, Fudan University, Shanghai 200433, China
E-mail: rqguo@fudan.edu.cn

^d Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau, China
E-mail: songnanqu@um.edu.mo

^e Department of Materials Science and Engineering, Centre for Functional Photonics (CFP), City University of Hong Kong, Kowloon, Hong Kong SAR, China

Abstract

Herein, we report UV-pumped white light emissive carbon dot (CD)-based phosphors to prevent blue light hazard in phosphor-converted WLEDs. Then, UV-pumped WLEDs with a color rendering index exceeding 85 and VLC with a modulation bandwidth of 75 MHz and a data transmission rate of 224 Mbps have been realized.

This article is part of the themed collections: Nanocarbons and 2019 Nanoscale HOT Article Collection

Nanoscale

Ultraviolet-pumped white light emissive carbon dot based phosphors for light-emitting devices and visible light communication†

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Ultraviolet-pumped white light emissive carbon dot based phosphors for light-emitting devices and visible light communication

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