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

Zhengjie Zhou; Pengfei Tian; Xiaoyan Liu; Shiliang Mei; Ding Zhou; Di Li; Pengtao Jing; Wanlu Zhang; Ruiqian Guo; Songnan Qu; Andrey L. Rogach

doi:10.1002/advs.201800369

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

Zhengjie Zhou
, Pengfei Tian
, Xiaoyan Liu
, Shiliang Mei
, Ding Zhou
, Di Li
, Pengtao Jing
, Wanlu Zhang
, Ruiqian Guo^*
, Songnan Qu^*
, Andrey L. Rogach

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

155 Citations (Scopus)

64 Downloads (CityUHK Scholars)

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.

Original language	English
Article number	1800369
Journal	Advanced Science
Volume	5
Issue number	8
Online published	13 Jun 2018
DOIs	https://doi.org/10.1002/advs.201800369
Publication status	Published - Aug 2018

Research Keywords

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

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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@article{a4b7ce25b01748b7a88475d26e31c1bd,

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

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.",

keywords = "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",

author = "Zhengjie Zhou and Pengfei Tian and Xiaoyan Liu and Shiliang Mei and Ding Zhou and Di Li and Pengtao Jing and Wanlu Zhang and Ruiqian Guo and Songnan Qu and Rogach, \{Andrey L.\}",

year = "2018",

month = aug,

doi = "10.1002/advs.201800369",

language = "English",

volume = "5",

journal = "Advanced Science",

issn = "2198-3844",

publisher = "Wiley-VCH Verlag GmbH",

number = "8",

}

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

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Hydrogen Peroxide-Treated Carbon Dot Phosphor with a Bathochromic-Shifted, Aggregation-Enhanced Emission for Light-Emitting Devices and Visible Light Communication

AU - Zhou, Zhengjie

AU - Tian, Pengfei

AU - Liu, Xiaoyan

AU - Mei, Shiliang

AU - Zhou, Ding

AU - Li, Di

AU - Jing, Pengtao

AU - Zhang, Wanlu

AU - Guo, Ruiqian

AU - Qu, Songnan

AU - Rogach, Andrey L.

PY - 2018/8

Y1 - 2018/8

N2 - 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.

AB - 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.

KW - aggregation-enhanced emission

KW - carbon dots

KW - hydrogen peroxide

KW - visible light communication

KW - white-light sources

KW - PHOTOLUMINESCENCE QUANTUM YIELD

KW - CONJUGATED POLYMERS

KW - COLOR-CONVERTER

KW - NANODOTS

KW - DIODES

KW - TRANSMISSION

KW - FLUORESCENCE

KW - THERAPY

KW - SENSORS

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85051588443&origin=recordpage

U2 - 10.1002/advs.201800369

DO - 10.1002/advs.201800369

M3 - RGC 21 - Publication in refereed journal

C2 - 30128244

SN - 2198-3844

VL - 5

JO - Advanced Science

JF - Advanced Science

IS - 8

M1 - 1800369

ER -

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

Abstract

Research Keywords

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