Highly Efficient Orange Emissive Graphene Quantum Dots Prepared by Acid-Free Method for White LEDs

You Xiao Chen; Dong Lu; Gui Gen Wang; Jiashun Huangfu; Qi Bao Wu; Xiao Fei Wang; Long Fei Liu; Da Ming Ye; Bo Yan; Jiecai Han

doi:10.1021/acssuschemeng.0c00106

Highly Efficient Orange Emissive Graphene Quantum Dots Prepared by Acid-Free Method for White LEDs

You Xiao Chen
, Dong Lu
, Gui Gen Wang^*
, Jiashun Huangfu
, Qi Bao Wu
, Xiao Fei Wang
, Long Fei Liu
, Da Ming Ye
, Bo Yan
, Jiecai Han

^*Corresponding author for this work

School of Astronautics

University Town of Shenzhen
Shenzhen Aerospace Industry Technology Research Institute
Shenzhen Institute of Information Technology

Research output: Contribution to journal › Article › peer-review

56 Scopus citations

Abstract

Graphene quantum dots (GQDs) have wide prospective applications for optoelectronic fields owing to their unique characteristics, such as tunable bandgaps, high chemical and optical stability, as well as good biocompatibility. In this work, we offered a convenient proposal to obtain uniform blue-green emissive GQDs and modified efficient orange-emitting graphene quantum dots (D-GQDs) derived from fullerene (C₆₀) under acid-free conditions. The as-prepared D-GQDs demonstrate remarkable conversion efficiency, for which the quantum yield is up to 52.4% with an emission peak of 617 nm. Also, GQDs and D-GQDs were blended with poly(vinyl alcohol) (PVA) to prepare transparent photoluminescent films, which show excellent flexibility and preferable white emission property meeting the requirements of commercial white LEDs.

Original language	English
Pages (from-to)	6657-6666
Number of pages	10
Journal	ACS Sustainable Chemistry and Engineering
Volume	8
Issue number	17
DOIs	https://doi.org/10.1021/acssuschemeng.0c00106
State	Published - 4 May 2020

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Acid-free condition
Graphene quantum dots
Quantum yield
WLEDs

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10.1021/acssuschemeng.0c00106

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title = "Highly Efficient Orange Emissive Graphene Quantum Dots Prepared by Acid-Free Method for White LEDs",

abstract = "Graphene quantum dots (GQDs) have wide prospective applications for optoelectronic fields owing to their unique characteristics, such as tunable bandgaps, high chemical and optical stability, as well as good biocompatibility. In this work, we offered a convenient proposal to obtain uniform blue-green emissive GQDs and modified efficient orange-emitting graphene quantum dots (D-GQDs) derived from fullerene (C60) under acid-free conditions. The as-prepared D-GQDs demonstrate remarkable conversion efficiency, for which the quantum yield is up to 52.4\% with an emission peak of 617 nm. Also, GQDs and D-GQDs were blended with poly(vinyl alcohol) (PVA) to prepare transparent photoluminescent films, which show excellent flexibility and preferable white emission property meeting the requirements of commercial white LEDs.",

keywords = "Acid-free condition, Graphene quantum dots, Quantum yield, WLEDs",

author = "Chen, \{You Xiao\} and Dong Lu and Wang, \{Gui Gen\} and Jiashun Huangfu and Wu, \{Qi Bao\} and Wang, \{Xiao Fei\} and Liu, \{Long Fei\} and Ye, \{Da Ming\} and Bo Yan and Jiecai Han",

note = "Publisher Copyright: Copyright {\textcopyright} 2020 American Chemical Society.",

year = "2020",

month = may,

day = "4",

doi = "10.1021/acssuschemeng.0c00106",

language = "英语",

volume = "8",

pages = "6657--6666",

journal = "ACS Sustainable Chemistry and Engineering",

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T1 - Highly Efficient Orange Emissive Graphene Quantum Dots Prepared by Acid-Free Method for White LEDs

AU - Chen, You Xiao

AU - Lu, Dong

AU - Wang, Gui Gen

AU - Huangfu, Jiashun

AU - Wu, Qi Bao

AU - Wang, Xiao Fei

AU - Liu, Long Fei

AU - Ye, Da Ming

AU - Yan, Bo

AU - Han, Jiecai

PY - 2020/5/4

Y1 - 2020/5/4

N2 - Graphene quantum dots (GQDs) have wide prospective applications for optoelectronic fields owing to their unique characteristics, such as tunable bandgaps, high chemical and optical stability, as well as good biocompatibility. In this work, we offered a convenient proposal to obtain uniform blue-green emissive GQDs and modified efficient orange-emitting graphene quantum dots (D-GQDs) derived from fullerene (C60) under acid-free conditions. The as-prepared D-GQDs demonstrate remarkable conversion efficiency, for which the quantum yield is up to 52.4% with an emission peak of 617 nm. Also, GQDs and D-GQDs were blended with poly(vinyl alcohol) (PVA) to prepare transparent photoluminescent films, which show excellent flexibility and preferable white emission property meeting the requirements of commercial white LEDs.

AB - Graphene quantum dots (GQDs) have wide prospective applications for optoelectronic fields owing to their unique characteristics, such as tunable bandgaps, high chemical and optical stability, as well as good biocompatibility. In this work, we offered a convenient proposal to obtain uniform blue-green emissive GQDs and modified efficient orange-emitting graphene quantum dots (D-GQDs) derived from fullerene (C60) under acid-free conditions. The as-prepared D-GQDs demonstrate remarkable conversion efficiency, for which the quantum yield is up to 52.4% with an emission peak of 617 nm. Also, GQDs and D-GQDs were blended with poly(vinyl alcohol) (PVA) to prepare transparent photoluminescent films, which show excellent flexibility and preferable white emission property meeting the requirements of commercial white LEDs.

KW - Acid-free condition

KW - Graphene quantum dots

KW - Quantum yield

KW - WLEDs

UR - https://www.scopus.com/pages/publications/85084703054

U2 - 10.1021/acssuschemeng.0c00106

DO - 10.1021/acssuschemeng.0c00106

M3 - 文章

AN - SCOPUS:85084703054

SN - 2168-0485

VL - 8

SP - 6657

EP - 6666

JO - ACS Sustainable Chemistry and Engineering

JF - ACS Sustainable Chemistry and Engineering

IS - 17

ER -

Highly Efficient Orange Emissive Graphene Quantum Dots Prepared by Acid-Free Method for White LEDs

Abstract

UN SDGs

Keywords

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