Plasmonic coupling of silver nanoparticles covered by hydrogen-terminated graphene for surface-enhanced Raman spectroscopy

Chih Yi Liu, Keng Chih Liang, Waileong Chen, Chia Hao Tu, Chuan Pu Liu, Yonhua Tzeng

研究成果: Article同行評審

44 引文 斯高帕斯(Scopus)

摘要

We report on strong plasmonic coupling from silver nanoparticles covered by hydrogen-terminated chemically vapor deposited single-layer graphene, and its effects on the detection and identification of adenine molecules through surface-enhanced Raman spectroscopy (SERS). The high resistivity of the graphene after subjecting to remote plasma hydrogenation allows plasmonic coupling induced strong local electromagnetic fields among the silver nanoparticles to penetrate the graphene, and thus enhances the SERS efficiency of adenine molecules adsorbed on the film. The graphene layer protects the nanoparticles from reactive and harsh environments and provides a chemically inert and biocompatible carbon surface for SERS applications.

原文English
頁(從 - 到)17092-17098
頁數7
期刊Optics Express
19
發行號18
DOIs
出版狀態Published - 2011 八月 29

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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