Graphene as a substrate to suppress fluorescence in resonance Raman spectroscopy

Liming Xie; Xi Ling; Yuan Fang; Jin Zhang; Zhongfan Liu

doi:10.1021/ja9037593

Graphene as a substrate to suppress fluorescence in resonance Raman spectroscopy

J Am Chem Soc. 2009 Jul 29;131(29):9890-1. doi: 10.1021/ja9037593.

Authors

Liming Xie¹, Xi Ling, Yuan Fang, Jin Zhang, Zhongfan Liu

Affiliation

¹ Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China.

PMID: 19572745
DOI: 10.1021/ja9037593

Abstract

We have measured resonance Raman spectra with greatly suppressed fluorescence (FL) background from rhodamine 6G (R6G) and protoporphyrin IX (PPP) adsorbed on graphene. The FL suppression is estimated to be approximately 10(3) times for R6G. The successful observation of resonance Raman peaks demonstrates that graphene can be used as a substrate to suppress FL in resonance Raman spectroscopy (RRS), which has potential applications in low-concentration detection and RRS study of fluorescent molecules.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Fluorescence*
Fluorescent Dyes / chemistry
Graphite / chemistry*
Materials Testing
Particle Size
Protoporphyrins / chemistry
Rhodamines / chemistry
Spectrum Analysis, Raman / methods
Surface Properties

Substances

Fluorescent Dyes
Protoporphyrins
Rhodamines
rhodamine 6G
Graphite
protoporphyrin IX