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Title: Metal-dielectric-CNT nanowires for surface-enhanced Raman spectroscopy

Abstract

A sensor with a substrate includes nanowires extending vertically from the substrate, a hafnia coating on the nanowires that provides hafnia coated nanowires, and a noble metal coating on the hafnia coated nanowires. The top of the hafnia and noble metal coated nanowires bent onto one another to create a canopy forest structure. There are numerous randomly arranged holes that let through scattered light. The many points of contact, hot spots, amplify signals. The methods include the steps of providing a Raman spectroscopy substrate, introducing nano crystals to the Raman spectroscopy substrate, growing a forest of nanowires from the nano crystals on the Raman spectroscopy substrate, coating the nanowires with hafnia providing hafnia coated nanowires, and coating the hafnia coated nanowires with a noble metal or other metal.

Inventors:
; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1397253
Patent Number(s):
9,778,197
Application Number:
14/450,633
Assignee:
Lawrence Livermore National Security, LLC LLNL
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Aug 04
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Bond, Tiziana C., Altun, Ali, and Park, Hyung Gyu. Metal-dielectric-CNT nanowires for surface-enhanced Raman spectroscopy. United States: N. p., 2017. Web.
Bond, Tiziana C., Altun, Ali, & Park, Hyung Gyu. Metal-dielectric-CNT nanowires for surface-enhanced Raman spectroscopy. United States.
Bond, Tiziana C., Altun, Ali, and Park, Hyung Gyu. Tue . "Metal-dielectric-CNT nanowires for surface-enhanced Raman spectroscopy". United States. doi:. https://www.osti.gov/servlets/purl/1397253.
@article{osti_1397253,
title = {Metal-dielectric-CNT nanowires for surface-enhanced Raman spectroscopy},
author = {Bond, Tiziana C. and Altun, Ali and Park, Hyung Gyu},
abstractNote = {A sensor with a substrate includes nanowires extending vertically from the substrate, a hafnia coating on the nanowires that provides hafnia coated nanowires, and a noble metal coating on the hafnia coated nanowires. The top of the hafnia and noble metal coated nanowires bent onto one another to create a canopy forest structure. There are numerous randomly arranged holes that let through scattered light. The many points of contact, hot spots, amplify signals. The methods include the steps of providing a Raman spectroscopy substrate, introducing nano crystals to the Raman spectroscopy substrate, growing a forest of nanowires from the nano crystals on the Raman spectroscopy substrate, coating the nanowires with hafnia providing hafnia coated nanowires, and coating the hafnia coated nanowires with a noble metal or other metal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 03 00:00:00 EDT 2017},
month = {Tue Oct 03 00:00:00 EDT 2017}
}

Patent:

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Works referenced in this record:

Metal-Dielectric-CNT Nanowires for Femtomolar Chemical Detection by Surface Enhanced Raman Spectroscopy
journal, May 2013

  • Altun, Ali Ozhan; Youn, Seul Ki; Yazdani, Nuri
  • Advanced Materials, Vol. 25, Issue 32, p. 4431-4436
  • DOI: 10.1002/adma.201300571