Surface plasmon resonance shifts of a dispersion of core-shell nanoparticles for efficient solar absorption

Wei Lv, Todd P. Otanicar, Patrick Phelan, Lenore Dai, Robert A. Taylor, Rajasekaran Swaminathan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

Nanoparticles are known to offer a variety of benefits for thermal transport, and of particular relevance here are the vast changes to the radiative properties due to the large extinction cross section at the corresponding surface plasmon resonance wavelength [1, 2]. Recent papers have indicated that dielectric core metallic shell nanoparticles yielded a plasmon resonance tunable from ultraviolet to infrared by changing the ratio of core radius to the total radius [3-6]. We are interested in developing a dispersion of core-shell multifunctional nanoparticles capable of dynamically changing their volume ratio and thus their spectral radiative properties. This work addresses the plasmon resonance tuning ranges for different metallic shell nanoparticles, and explores the solar-weighted efficiencies of corresponding core-shell nanoparticle dispersions. Through our electrostatic model, we achieve a shift in the plasmon resonance peak from a wavelength of about 500 nm to around 1500 nm for Au-coated silica core nanoparticles. Using core-shell nanoparticles dispersions, we show that it is possible to create efficient spectral solar absorption fluids. We also demonstrate that it is possible to design materials for applications which require variable spectral absorption or scattering.

Original languageEnglish (US)
Title of host publicationASME 2012 3rd International Conference on Micro/Nanoscale Heat and Mass Transfer, MNHMT 2012
Pages191-199
Number of pages9
DOIs
StatePublished - Dec 1 2012
EventASME 2012 3rd International Conference on Micro/Nanoscale Heat and Mass Transfer, MNHMT 2012 - Atlanta, GA, United States
Duration: Mar 3 2012Mar 6 2012

Publication series

NameASME 2012 3rd International Conference on Micro/Nanoscale Heat and Mass Transfer, MNHMT 2012

Other

OtherASME 2012 3rd International Conference on Micro/Nanoscale Heat and Mass Transfer, MNHMT 2012
CountryUnited States
CityAtlanta, GA
Period3/3/123/6/12

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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    Lv, W., Otanicar, T. P., Phelan, P., Dai, L., Taylor, R. A., & Swaminathan, R. (2012). Surface plasmon resonance shifts of a dispersion of core-shell nanoparticles for efficient solar absorption. In ASME 2012 3rd International Conference on Micro/Nanoscale Heat and Mass Transfer, MNHMT 2012 (pp. 191-199). (ASME 2012 3rd International Conference on Micro/Nanoscale Heat and Mass Transfer, MNHMT 2012). https://doi.org/10.1115/MNHMT2012-75090