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Thermally annealled plasmonic nanostructures
- 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 |
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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. |
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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 |