Tunable Photoluminescence from Graphene Oxide

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

doi:10.1002/anie.201200474

articleAngewandte Chemie International EditionMay 23, 2012Closed access

Tunable Photoluminescence from Graphene Oxide

CCChih‐Tao Chien SLShao‐Sian Li WLWei‐Jung Lai YYYun‐Chieh Yeh HCHsin‐An Chen

National Taiwan University · Institute of Atomic and Molecular Sciences, Academia Sinica · +5 more institutions

PubMed

Indexed incrossrefpubmed

Abstract

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 sp2- and sp3-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.

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Topics & keywords

Topics

Keywords

Photoluminescence
Graphene
Oxide
Luminescence
Excited state
Materials science
Carbon fibers
Photochemistry

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