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Photoluminescence and band gap modulation in graphene oxide

โœ Scribed by Luo, Zhengtang; Vora, Patrick M.; Mele, Eugene J.; Johnson, A. T. Charlie; Kikkawa, James M.


Book ID
120354165
Publisher
American Institute of Physics
Year
2009
Tongue
English
Weight
436 KB
Volume
94
Category
Article
ISSN
0003-6951

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Photoluminescence and band gap modulatio
โœ Luo, Zhengtang; Vora, Patrick M.; Mele, Eugene J.; Johnson, A. T. Charlie; Kikka ๐Ÿ“‚ Article ๐Ÿ“… 2009 ๐Ÿ› American Institute of Physics ๐ŸŒ English โš– 436 KB

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 ฯ€-electrons. We discuss possible gapping mechanisms, and propose th