Scattering analysis of the indium-tin-oxide (ITO) nanowhiskers on ITO film substrate for thin film solar cell

Hsiao Wei Liu, Chia Hua Chang, Chien-Chung Lin, Peichen Yu*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

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.

Original languageEnglish
Title of host publicationPhysics, Simulation, and Photonic Engineering of Photovoltaic Devices
DOIs
StatePublished - 26 Apr 2012
EventPhysics, Simulation, and Photonic Engineering of Photovoltaic Devices - San Francisco, CA, United States
Duration: 23 Jan 201226 Jan 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8256
ISSN (Print)0277-786X

Conference

ConferencePhysics, Simulation, and Photonic Engineering of Photovoltaic Devices
CountryUnited States
CitySan Francisco, CA
Period23/01/1226/01/12

Keywords

  • Haze ratio
  • ITO whisker
  • Mie theory

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