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Proceedings Paper

Scattering analysis of the indium-tin-oxide (ITO) nanowhiskers on ITO film substrate for thin film solar cell
Author(s): Hsiao-Wei Liu; Chia-Hua Chang; Chien Chung Lin; Peichen Yu
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Paper Abstract

Light trapping techniques such as textured interfaces and highly reflective back contacts are important to thin-film solar cells. Scattering at rough interfaces inside a solar cell leads to enhanced absorption due to an increased optical path length in the active layers, which is generally characterized by a haze ratio. In this work, we demonstrate the measured haze characteristics of indium tin oxide nano-whiskers deposited on an ITO-coated glass substrate. A theoretical model based on a modified Mie theory is also employed to analyze the scattering effects of nano-whiskers. Instead of spherical model, a cylindrical condition is imposed to better fit the shapes of the whiskers. The calculated haze-ratio of an ITO whisker layer matches the measurement closely.

Paper Details

Date Published: 21 February 2012
PDF: 6 pages
Proc. SPIE 8256, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices, 82560A (21 February 2012); doi: 10.1117/12.908854
Show Author Affiliations
Hsiao-Wei Liu, National Chiao Tung Univ. (Taiwan)
Chia-Hua Chang, National Chiao Tung Univ. (Taiwan)
Chien Chung Lin, National Chiao Tung Univ. (Taiwan)
Peichen Yu, National Chiao Tung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 8256:
Physics, Simulation, and Photonic Engineering of Photovoltaic Devices
Alexandre Freundlich; Jean-Francois F. Guillemoles, Editor(s)

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