Photoluminescence and band gap modulation in graphene oxide

Zhengtang Luo; Patrick M. Vora; E. J. Melé; A. T. Charlie Johnson; James M. Kikkawa

doi:10.1063/1.3098358

Abstract

We report broadband visible photoluminescence from solid graphene oxide, and modifications of the emission spectrum by progressive chemical reduction. The data suggest a gapping of the two-dimensional electronic system by removal of π-electrons. We discuss possible gapping mechanisms, and propose that a Kekule pattern of bond distortions may account for the observed behavior.

Keywords

PhotoluminescenceGrapheneOxideMaterials scienceBand gapElectronModulation (music)OptoelectronicsBroadbandNanotechnologyPhysicsOpticsQuantum mechanicsMetallurgy

Affiliated Institutions

University of Pennsylvania US

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Publication Info

Year: 2009
Type: article
Volume: 94
Issue: 11
Citations: 561
Access: Closed

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APA Style

                            
                                
                                    Zhengtang Luo, 
                                
                                    Patrick M. Vora, 
                                
                                    E. J. Melé
                                
                                et al.
                            
                            (2009). 
                            Photoluminescence and band gap modulation in graphene oxide. 
                            Applied Physics Letters
                            , 94
                            (11)
                            .
                            https://doi.org/10.1063/1.3098358
                        

Identifiers

DOI: 10.1063/1.3098358