Hydrogen Peroxide-Treated Carbon Dot Phosphor with a Bathochromic-Shifted, Aggregation-Enhanced Emission for Light-Emitting Devices and Visible Light Communication

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Zhengjie Zhou
  • Pengfei Tian
  • Xiaoyan Liu
  • Shiliang Mei
  • Ding Zhou
  • Di Li
  • Pengtao Jing
  • Wanlu Zhang
  • Ruiqian Guo
  • Songnan Qu

Detail(s)

Original languageEnglish
Article number1800369
Journal / PublicationAdvanced Science
Volume5
Issue number8
Online published13 Jun 2018
Publication statusPublished - Aug 2018

Link(s)

Abstract

It is demonstrated that treatment of blue-emissive carbon dots (CDs) with aqueous hydrogen peroxide (H2O2) results in the green emissive solid state CD phosphor with photoluminescence quantum yield of 25% and short luminescence lifetime of 6 ns. The bathochromic-shifted, enhanced green emission of H2O2-treated CDs in the powder is ascribed to surface state changes occurring in the aggregated material. Using the green emissive H2O2-treated CD phosphor, down-conversion white-light-emitting devices with cool, pure, and warm white light are fabricated. Moreover, using the green emissive CD phosphor as a color converter, a laser-based white-light source is realized, and visible light communication with a high modulation bandwidth of up to 285 MHz and data transmission rate of ≈435 Mbps is demonstrated.

Research Area(s)

  • aggregation-enhanced emission, carbon dots, hydrogen peroxide, visible light communication, white-light sources, PHOTOLUMINESCENCE QUANTUM YIELD, CONJUGATED POLYMERS, COLOR-CONVERTER, NANODOTS, DIODES, TRANSMISSION, FLUORESCENCE, THERAPY, SENSORS

Citation Format(s)

Hydrogen Peroxide-Treated Carbon Dot Phosphor with a Bathochromic-Shifted, Aggregation-Enhanced Emission for Light-Emitting Devices and Visible Light Communication. / Zhou, Zhengjie; Tian, Pengfei; Liu, Xiaoyan; Mei, Shiliang; Zhou, Ding; Li, Di; Jing, Pengtao; Zhang, Wanlu; Guo, Ruiqian; Qu, Songnan; Rogach, Andrey L.

In: Advanced Science, Vol. 5, No. 8, 1800369, 08.2018.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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