File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

신현석

Shin, Hyeon Suk
Lab for Carbon and 2D Materials
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Hexagonal Boron Nitride/Au Substrate for Manipulating Surface Plasmon and Enhancing Capability of Surface-Enhanced Raman Spectroscopy

Author(s)
Kim, GwangwooKim, MinsuHyun, ChoheeHong, SeokmoMa, Kyung YeolShin, Hyeon SukLim, Hyunseob
Issued Date
2016-12
DOI
10.1021/acsnano.6b06153
URI
https://scholarworks.unist.ac.kr/handle/201301/21079
Fulltext
http://pubs.acs.org/doi/abs/10.1021/acsnano.6b06153
Citation
ACS NANO, v.10, no.12, pp.11156 - 11162
Abstract
We report on an insulating two-dimensional material, hexagonal boron nitride (h-BN), which can be used as an effective wrapping layer for surface-enhanced Raman spectroscopy (SERS) substrates. This material exhibits outstanding characteristics such as its crystallinity, impermeability, and thermal conductance. Improved SERS sensitivity is confirmed for Au substrates wrapped with h-BN, the mechanism of which is investigated via h-BN thickness-dependent experiments combined with theoretical simulations. The investigations reveal that a stronger electromagnetic field can be generated at the narrowed gap of the h-BN surface, which results in higher Raman sensitivity. Moreover, the h-BN-wrapped Au substrate shows extraordinary stability against photothermal and oxidative damages. We also describe its capability to detect specific chemicals that are difficult to analyze using conventional SERS substrates. We believe that this concept of using an h-BN insulating layer to protect metallic or plasmonic materials will be widely used not only in the field of SERS but also in the broader study of plasmonic and optoelectronic devices.
Publisher
AMER CHEMICAL SOC
ISSN
1936-0851
Keyword (Author)
hexagonal boron nitridesurface-enhanced Raman spectroscopygold nanoparticleshot spotinsulating layer
Keyword
LITHIUM ION BATTERIESTHERMAL-CONDUCTIVITYGOLD NANOPARTICLESPHONON TRANSPORTGRAPHENESTABILITYSCATTERINGHETEROSTRUCTURESNANOSHEETSCATALYSIS

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.