Controllable size-selective method to prepare graphene quantum dots from graphene oxide

Tianju Fan, Wenjin Zeng, Wei Tang, Chunqiu Yuan, Songzhao Tong, Kaiyu Cai, Yidong Liu, Wei Huang, Yong Min, Arthur J. Epstein

Research output: Contribution to journalArticlepeer-review

141 Scopus citations

Abstract

We demonstrated one-step method to fabricate two different sizes of graphene quantum dots (GQDs) through chemical cutting from graphene oxide (GO), which had many advantages in terms of simple process, low cost, and large scale in manufacturing with higher production yield comparing to the reported methods. Several analytical methods were employed to characterize the composition and morphology of the resultants. Bright blue luminescent GQDs were obtained with a produced yield as high as 34.8%. Moreover, how the different sizes affect fluorescence wavelength mechanism was investigated in details.

Original languageEnglish
Article number55
JournalNanoscale Research Letters
Volume10
Issue number1
DOIs
StatePublished - 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015, Fan et al. ; licensee Springer.

Funding

The authors would like to acknowledge the financial supports by Nanjing University of Post and Telecommunication basic research program (NY 212002), the Ministry of Education of China Program for Changjiang Scholars and Innovative Research Team in University (IRT1148), and Shuangchuang Program of Jiangsu Province 2014.

FundersFunder number
Ministry of Education of China Program for Changjiang Scholars and Innovative Research Team in UniversityIRT1148
Nanjing University of Post and Telecommunication Basic Research ProgramNY 212002
Shuangchuang Program of Jiangsu Province

    Keywords

    • Chemical cutting
    • Fluorescence mechanism
    • Graphene oxide
    • Graphene quantum dots

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