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Thermally annealled plasmonic nanostructures

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Date Issued:
2012
Abstract/Description:
Localized surface plasmon resonance (LSPR) is induced in metal nanoparticles by resonance between incident photons and conduction electrons in nanoparticles. For noble metal nanoparticles, LSPR can lead to strong absorbance of ultraviolet-violet light. Although it is well known that LSPR depends on the size and shape of nanoparticles, the inter-particle spacing, the dielectric properties of metal and the surrounding medium, the temperature dependence of LSPR is not well understood. By thermally annealing gold nanoparticle arrays formed by nanosphere lithography, a shift of LSPR peak upon heating has been shown. The thermal characteristics of the plasmonic nanoparticles have been further used to detect chemicals such as explosive and mercury vapors, which allow direct visual observation of the presence of mercury vapor, as well as thermal desorption measurements.
Title: Thermally annealled plasmonic nanostructures.
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Name(s): Wang, Chaoming, Author
Su, Ming, Committee Chair
Coffey, Kevin, Committee Member
Chai, Xinqing, Committee Member
Schelling, Patrick, Committee Member
, Committee Member
University of Central Florida, Degree Grantor
Type of Resource: text
Date Issued: 2012
Publisher: University of Central Florida
Language(s): English
Abstract/Description: Localized surface plasmon resonance (LSPR) is induced in metal nanoparticles by resonance between incident photons and conduction electrons in nanoparticles. For noble metal nanoparticles, LSPR can lead to strong absorbance of ultraviolet-violet light. Although it is well known that LSPR depends on the size and shape of nanoparticles, the inter-particle spacing, the dielectric properties of metal and the surrounding medium, the temperature dependence of LSPR is not well understood. By thermally annealing gold nanoparticle arrays formed by nanosphere lithography, a shift of LSPR peak upon heating has been shown. The thermal characteristics of the plasmonic nanoparticles have been further used to detect chemicals such as explosive and mercury vapors, which allow direct visual observation of the presence of mercury vapor, as well as thermal desorption measurements.
Identifier: CFE0004454 (IID), ucf:49322 (fedora)
Note(s): 2012-08-01
Ph.D.
Engineering and Computer Science, Mechanical, Materials and Aerospace Engineering
Doctoral
This record was generated from author submitted information.
Subject(s): Localized surface plasmon resonance -- gold nanoparticles -- array -- thermal
Persistent Link to This Record: http://purl.flvc.org/ucf/fd/CFE0004454
Restrictions on Access: campus 2013-08-15
Host Institution: UCF

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