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Proceedings Paper

Effective enhancement of conversion efficiency for a-Si thin-film solar cell using pattern-array dendritic silver nanostructure
Author(s): Wei-Hsun Lai; Chi-Pin Chiu; Der-Jun Jan; Wei-Hsiu Hsu; Shih-Shou Lo
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Paper Abstract

We report on the fabrication and measurement of ultrathin a-Si solar cells with plasmonic back contacts composed of nanopattern dendritic/shrub-like Ag nanostructures that exhibit enhanced short circuit densities compared cells with flat back contacts. The morphology of the Ag nanostructure can be well controlled by the reaction time. When the proposed structure was used in the solar cell. The back-reflector of solar cell can be well designed by various Ag nanostructures and periods. A one-dimension shrub-like Ag nanostructure with spacing of 600 nm, exhibited a 14 % increase in short-circuit current density and a 20% increase in energy conversion efficiency are observed. This study indicates that the dendritic/shrub-like Ag nanostructure can be applied as a enhancing conversion configuration for ultrathin a-Si solar cells.

Paper Details

Date Published: 15 May 2014
PDF: 5 pages
Proc. SPIE 9140, Photonics for Solar Energy Systems V, 914013 (15 May 2014); doi: 10.1117/12.2051926
Show Author Affiliations
Wei-Hsun Lai, Feng Chia Univ. (Taiwan)
Chi-Pin Chiu, Feng Chia Univ. (Taiwan)
Der-Jun Jan, Institute of Nuclear Energy Research (Taiwan)
Wei-Hsiu Hsu, Institute of Nuclear Energy Research (Taiwan)
Shih-Shou Lo, Feng Chia Univ. (Taiwan)


Published in SPIE Proceedings Vol. 9140:
Photonics for Solar Energy Systems V
Ralf B. Wehrspohn; Andreas Gombert, Editor(s)

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