CaltechAUTHORS
Published July 2015 | Version Supplemental Material
Journal Article Open

Heterogeneous Fluorescence Intermittency in Single Layer Reduced Graphene Oxide

Creators

  • 1. ROR icon University of Notre Dame
  • 2. ROR icon California Institute of Technology

Abstract

We provide, for the first time, direct experimental evidence for heterogeneous blinking in reduced graphene oxide (rGO) during photolysis. The spatially resolved intermittency originates from regions within individual rGO sheets and shows 1/f-like power spectral density. We describe the evolution of rGO blinking using the multiple recombination center (MRC) model that captures common features of nanoscale blinking. Our results illustrate the universal nature of blinking and suggest a common microscopic origin for the effect.

Additional Information

© 2015 American Chemical Society. Received: January 16, 2015; Revised: May 21, 2015; Published: June 9, 2015. M.K. thanks the American Chemical Society Petroleum Research Fund, the Army Research Office (W911NF-12-1-0578), for support. B.J. was supported in part by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract W-31-109-Eng-38. We thank Anthony Ruth for valuable discussions in structure and properties of graphene oxide. Author Contributions: A.E., Y.M., and M.P.M performed the experiments. Subsequent data analysis was done under the supervision of M.K. J.S. and S.V.-K. performed the numerical analysis and the phenomenological modeling of the data under the supervision and guidance of B.J. All authors contributed to the interpretation of the results and the writing of the manuscript. The authors declare no competing financial interest.

Attached Files

Supplemental Material - nl5b00191_si_001.pdf

Supplemental Material - nl5b00191_si_002.avi

Files

nl5b00191_si_001.pdf

Files (12.5 MB)

Name Size
md5:bc9a717747df5dc30fc57c44b9cbddd7
1.7 MB Preview Download
md5:7dc80947ae5dc755dc0230eb5ad6ef19
10.8 MB Download

Additional details

Identifiers

Eprint ID
59271
Resolver ID
CaltechAUTHORS:20150806-150141503

Funding

American Chemical Society Petroleum Research Fund
Army Research Office (ARO)
W911NF-12-1-0578
Department of Energy (DOE)
W-31-109-ENG-38

Dates

Created
2015-08-06
Created from EPrint's datestamp field
Updated
2021-11-10
Created from EPrint's last_modified field