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Proceedings Paper

Photonics and plasmonics applied to solar cells
Author(s): Stephen J. Fonash; Wook Jun Nam; Liming Ji; Vasundara V. Varadan
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Paper Abstract

The use of non-metallic, nano-element arrays for light trapping in substrate a-Si:H single junction solar cell structures is found to dramatically increase power conversion efficiency. This enhancement is consistent with significant light diffraction from the array into plasmon-polariton modes, photonic modes, or both. However, modeling shows that photonic effects dominate in substrate structures and that the light and carrier collection advantages of such arrays can result in short circuit current densities of 17.3 mA/cm2 for nominally 200nm a-Si:H substrate cells, giving a 56% increase in efficiency over planar 200nm controls while keeping photocarriers within 224nm from a collecting electrode.

Paper Details

Date Published: 11 October 2012
PDF: 7 pages
Proc. SPIE 8482, Photonic Innovations and Solutions for Complex Environments and Systems (PISCES), 848204 (11 October 2012); doi: 10.1117/12.928052
Show Author Affiliations
Stephen J. Fonash, Solarity LLC (United States)
The Pennsylvania State Univ. (United States)
Wook Jun Nam, Solarity LLC (United States)
The Pennsylvania State Univ. (United States)
Liming Ji, Univ. of Arkansas (United States)
Vasundara V. Varadan, Univ. of Arkansas (United States)


Published in SPIE Proceedings Vol. 8482:
Photonic Innovations and Solutions for Complex Environments and Systems (PISCES)
Akhlesh Lakhtakia; Judith Ann Todd, Editor(s)

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