Photoluminescence from nanocrystalline graphite monofluoride

Bei Wang, Justin R. Sparks, Humberto R. Gutierrez, Fujio Okino, Qingzhen Hao, Youjian Tang, Vincent Henry Crespi, Jorge Osvaldo Sofo, Jun Zhu

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

We synthesize and study the structural and optical properties of nanocrystalline graphene monofluoride and graphite monofluoride, which are carbon-based wide band gap materials. Using laser excitations 2.41-5.08 eV, we identify six emission modes of graphite monofluoride, spanning the visible spectrum from red to violet. The energy and linewidth of the modes point to defect-induced midgap states as the source of the photoemission. We discuss possible candidates. Our findings open the window to electro-optical applications of graphene fluoride.

Original languageEnglish (US)
Article number141915
JournalApplied Physics Letters
Volume97
Issue number14
DOIs
StatePublished - Oct 4 2010

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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