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Approaches to uniform-morphology: Po...

Giesfeldt, Kathleen Sue.

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Approaches to uniform-morphology: Polymer-based SERS substrates.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Approaches to uniform-morphology: Polymer-based SERS substrates./
Author:	Giesfeldt, Kathleen Sue.
Description:	227 p.
Notes:	Source: Dissertation Abstracts International, Volume: 66-05, Section: B, page: 2558.
Contained By:	Dissertation Abstracts International66-05B.
Subject:	Chemistry, Analytical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3177253
ISBN:	054216342X

Approaches to uniform-morphology: Polymer-based SERS substrates.
Giesfeldt, Kathleen Sue.

Approaches to uniform-morphology: Polymer-based SERS substrates. - 227 p.

Source: Dissertation Abstracts International, Volume: 66-05, Section: B, page: 2558.

Thesis (Ph.D.)--The University of Tennessee, 2005.

Polymer-nano-metallic-particle composites have demonstrated technological potential due to their unique optical and electrical properties. We report on composites prepared via physical vapor deposition of silver and gold onto pliable polydimethylsiloxane (PDMS) polymer. Rapid metal diffusion and nano-metallic-particle formation in a phase-separated surface layer of the PDMS creates unique sub-surface-based composites that vary in properties based on rate of deposition and average metal thickness. In addition, nano-metallic-particle spacing can be altered with fair reproducibility and reversibility by physically manipulating the composite. A practical technological characteristic of these composite materials arises from their potential to be molded into functional devices.

ISBN: 054216342XSubjects--Topical Terms:

586156
Chemistry, Analytical.

Approaches to uniform-morphology: Polymer-based SERS substrates.
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100 1 $a Giesfeldt, Kathleen Sue. $3 1906950
245 1 0 $a Approaches to uniform-morphology: Polymer-based SERS substrates.
300 $a 227 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-05, Section: B, page: 2558.
500 $a Adviser: Michael J. Sepaniak.
502 $a Thesis (Ph.D.)--The University of Tennessee, 2005.
520 $a Polymer-nano-metallic-particle composites have demonstrated technological potential due to their unique optical and electrical properties. We report on composites prepared via physical vapor deposition of silver and gold onto pliable polydimethylsiloxane (PDMS) polymer. Rapid metal diffusion and nano-metallic-particle formation in a phase-separated surface layer of the PDMS creates unique sub-surface-based composites that vary in properties based on rate of deposition and average metal thickness. In addition, nano-metallic-particle spacing can be altered with fair reproducibility and reversibility by physically manipulating the composite. A practical technological characteristic of these composite materials arises from their potential to be molded into functional devices.
520 $a Surface enhanced Raman scattering (SERS) substrate selectivity and the analytical figures of merit, such as reproducibility and dynamic range have limited the general acceptance of the technique for routine analytical applications. Herein, we explore the potential approaches to fabricate polymer-based substrates with uniform morphology by electron beam lithography, imprinting, and casting. The objective is to produce a homogeneous analyte environments that will address the issues associated with the figures of merit.
520 $a The optical properties of the materials are studied by visible wavelength optical extinction spectrometry and SERS. DC conductivity measurements were made during depositions to study percolation conditions for the materials. Depth-profiling was performed by X-Ray Photoelectron Spectrometry.
590 $a School code: 0226.
650 4 $a Chemistry, Analytical. $3 586156
650 4 $a Chemistry, Polymer. $3 1018428
690 $a 0486
690 $a 0495
710 2 0 $a The University of Tennessee. $3 1022026
773 0 $t Dissertation Abstracts International $g 66-05B.
790 1 0 $a Sepaniak, Michael J., $e advisor
790 $a 0226
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3177253