Tungsten nanowire metamaterials as selective solar thermal absorbers by excitation of magnetic polaritons

J. Y. Chang, H. Wang, Liping Wang

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

Abstract

The present study focuses on nanowire based metamaterials with excitation of magnetic polariton (MP) as selective solar absorbers. Finite-difference time-domain simulation is employed for numerically designing a broadband solar absorber made of lossy tungsten nanowires which exhibit spectral selectivity due to the excitation of MP. An inductorcapacitor circuit model of the nanowire array is developed in order to predict the resonance wavelengths of the MP harmonic modes. The effects of geometric parameters such as nanowire diameter, height, and array period are investigated and understood on tuning the magnetic polariton resonance and the resulting optical and radiative properties. In addition, the independence of incidence angles is demonstrated, which illustrates the potential applicability of the nanowire-based metamaterial as a high-efficiency wide-angle selective solar absorber. The results will facilitate the design of novel low-cost and high-efficiency materials for enhancing solar thermal energy harvesting and conversion.

Original languageEnglish (US)
Title of host publicationMicro/Nanofluidics and Lab-on-a-Chip; Nanofluids; Micro/Nanoscale Interfacial Transport Phenomena; Micro/Nanoscale Boiling and Condensation Heat Transfer; Micro/Nanoscale Thermal Radiation; Micro/Nanoscale Energy Devices and Systems
PublisherAmerican Society of Mechanical Engineers
Volume1
ISBN (Print)9780791849651
DOIs
StatePublished - 2016
EventASME 2016 5th International Conference on Micro/Nanoscale Heat and Mass Transfer, MNHMT 2016 - Biopolis, Singapore
Duration: Jan 4 2016Jan 6 2016

Other

OtherASME 2016 5th International Conference on Micro/Nanoscale Heat and Mass Transfer, MNHMT 2016
CountrySingapore
CityBiopolis
Period1/4/161/6/16

Keywords

  • Magnetic polariton
  • Metamaterial
  • Nanowires
  • Solar absorber

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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    Chang, J. Y., Wang, H., & Wang, L. (2016). Tungsten nanowire metamaterials as selective solar thermal absorbers by excitation of magnetic polaritons. In Micro/Nanofluidics and Lab-on-a-Chip; Nanofluids; Micro/Nanoscale Interfacial Transport Phenomena; Micro/Nanoscale Boiling and Condensation Heat Transfer; Micro/Nanoscale Thermal Radiation; Micro/Nanoscale Energy Devices and Systems (Vol. 1). [V001T05A004] American Society of Mechanical Engineers. https://doi.org/10.1115/MNHMT2016-6469