Details

Autor(en) / Beteiligte

• Luo, Zhengtang
• Vora, Patrick M.
• Mele, Eugene J.
• Johnson, A. T. Charlie
• Kikkawa, James M.

Titel

Photoluminescence and band gap modulation in graphene oxide

Ist Teil von

• Applied physics letters, 2009-03, Vol.94 (11), p.111909-111909-3

Ort / Verlag

American Institute of Physics

Erscheinungsjahr

2009

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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.