Tunable photoluminescence from graphene oxide

Chih Tao Chien, Shao Sian Li, Wei Jung Lai, Yun Chieh Yeh, Hsin An Chen, I. Shen Chen, Li Chyong Chen, Kuei Hsien Chen, Takashi Nemoto, Seiji Isoda, Mingwei Chen, Takeshi Fujita, Goki Eda, Hisato Yamaguchi, Manish Chhowalla, Chun Wei Chen

Research output: Contribution to journalArticlepeer-review

596 Citations (Scopus)


Tuning to G(O) flat: Photoluminescence in graphene oxide (GO) suspensions can be tuned from red to blue emission (see scheme) by gradually changing the amounts of sp 2- and sp 3-bonded carbon atoms through reduction of the surface oxide groups. Electron-hole recombination from two different types of excited states is proposed to explain the luminescence in GO at varying degrees of reduction.

Original languageEnglish
Pages (from-to)6662-6666
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number27
Publication statusPublished - Jul 2 2012
Externally publishedYes


  • graphene
  • graphene oxide
  • luminescence
  • materials science
  • scanning-probe microscopy

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)


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