Mn2+-bonded reduced graphene oxide with strong radiative recombination in broad visible range caused by resonant energy transfer

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

70 Scopus Citations
View graph of relations

Author(s)

  • Z. X. Gan
  • S. J. Xiong
  • X. L. Wu
  • C. Y. He
  • J. C. Shen

Detail(s)

Original languageEnglish
Pages (from-to)3951-3956
Journal / PublicationNano Letters
Volume11
Issue number9
Publication statusPublished - 14 Sep 2011

Abstract

The photoluminescence (PL) characteristics of Mn2+-bonded reduced graphene oxide (rGO) are studied in details. The Mn2+-bonded rGO is synthesized using MnO2-decorated GO as the intermediate products and ideal tunable PL is obtained by enhancing the long-wavelength (450-550 nm) emission. The PL spectra excited by different wavelengths are analyzed to elucidate the mechanism, and the resonant energy transfer between Mn2+ and sp2 clusters of the rGO appears to be responsible for the enhanced long-wavelength emission. To examine the effect of Mn 2+ on the long-wavelength emission from the Mn2+-bonded rGO, the PL characteristics of Mn2+-bonded rGO with smaller Mn concentrations are studied and weaker emission is observed. Our theoretical calculation corroborates the experimental results. © 2011 American Chemical Society.

Research Area(s)

  • enhanced and tunable photoluminescence, Mn2+-bonded rGO, resonance energy transfer, sp2 clusters

Citation Format(s)

Mn2+-bonded reduced graphene oxide with strong radiative recombination in broad visible range caused by resonant energy transfer. / Gan, Z. X.; Xiong, S. J.; Wu, X. L.; He, C. Y.; Shen, J. C.; Chu, Paul K.

In: Nano Letters, Vol. 11, No. 9, 14.09.2011, p. 3951-3956.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review