Vapor Phase Sensing Using Metal Nanorod Thin Films Grown by Cryogenic Oblique Angle Deposition

We demonstrate the chemical sensing capability of silver nanostructured films grown by cryogenic oblique angle deposition (OAD). For comparison, the films are grown side by side at cryogenic (~100 K) and at room temperature (~300 K) by e-beam evaporation. Based on the observed structural differences...

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Published in:Journal of sensors 2013-01, Vol.2013 (2013), p.1-6
Main Authors: Shah, Piyush, Ju, Dongquan, Niu, Xiaoxu, Sarangan, Andrew M.
Format: Article
Language:English
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Colleges & universities
Deposition
Detection
Metals
Nanocomposites
Nanostructure
Silver
Simulation
Spectrum analysis
Temperature
Thin films
Vapor phases
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creator Shah, Piyush
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Niu, Xiaoxu
Sarangan, Andrew M.
description We demonstrate the chemical sensing capability of silver nanostructured films grown by cryogenic oblique angle deposition (OAD). For comparison, the films are grown side by side at cryogenic (~100 K) and at room temperature (~300 K) by e-beam evaporation. Based on the observed structural differences, it was hypothesized that the cryogenic OAD silver films should show an increased surface enhanced Raman scattering (SERS) sensitivity. COMSOL simulation results are presented to validate this hypothesis. Experimental SERS results of 4-aminobenzenethiol (4-ABT) Raman test probe molecules in vapor phase show good agreement with the simulation and indicate promising SERS applications for these nanostructured thin films.
doi_str_mv 10.1155/2013/823041
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source Wiley Online Library Open Access; Publicly Available Content Database
subjects Colleges & universities
Deposition
Detection
Metals
Nanocomposites
Nanostructure
Silver
Simulation
Spectrum analysis
Temperature
Thin films
Vapor phases
title Vapor Phase Sensing Using Metal Nanorod Thin Films Grown by Cryogenic Oblique Angle Deposition
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