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Proceedings Paper

Design and analysis of a broadband nanoantenna for energy harvesting
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Paper Abstract

In this paper, we propose a broadband nanoantenna for solar energy harvesting, whose elements compose of dual triangles, a hexagonal pillar and a ring column. The optical characteristics are analyzed numerically by the three dimensional finite-difference time-domain (FDTD) method. It is found that the average absorptivity of the nanostructure is 84.53% in the visible and near-infrared waveband raning from 400-1800nm. In addition, the prefect light absorbing capability is independent of the incident light polarization state, and it can keep up an average absorptivity of 86% for an incident angle as large as ±60°. We attribute the better absorption property of the nanoantenna to Fabry-Perot resonance, lighting-rod effects and the localized surface plasmon resonance enhancement.

Paper Details

Date Published: 20 December 2019
PDF: 7 pages
Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 112091M (20 December 2019); doi: 10.1117/12.2547472
Show Author Affiliations
Lu Zhu, East China Jiaotong Univ. (China)
Yue Jin, East China Jiaotong Univ. (China)
Kangkang Li, East China Jiaotong Univ. (China)
Huan Liu, East China Jiaotong Univ. (China)
Yuanyuan Liu, East China Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 11209:
Eleventh International Conference on Information Optics and Photonics (CIOP 2019)
Hannan Wang, Editor(s)

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