Efficiency enhancement of the thin-silicon photovoltaics using indium-tin-oxide nanowhiskers

Wei Lun Chang*, En Ting Liu, Chia Hua Chang, Pei-Chen Yu, Chien Hung Wu

*Corresponding author for this work

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

Abstract

Thin wafer-based solar cells have the potential to significantly decrease the cost of photovoltaics. Light trapping is particularly critical in such thin-wafer crystalline silicon solar cells in order to increase light absorption and hence cell efficiency. In this article we investigate the indium-tin-oxide nanowhisker on textured silicon surface for enhancing the near-infrared absorbance of silicon photovoltaics. The nanowhiskers facilitate optical transmission in the near-infrared by functioning as impedance matching layers with effective refractive indices gradually varying from 1 to 1.3. Materials with such unique refractive index characteristics are not readily available in nature. As a result, the solar cell with combined textures achieves quantum efficiencies enhancement for a broad wavelength range of 900 to 1100 nm, which is crucial to the development of advanced thin-substrate silicon solar cells.

Original languageEnglish
Title of host publicationProgram - 37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Pages2852-2854
Number of pages3
DOIs
StatePublished - 1 Dec 2011
Event37th IEEE Photovoltaic Specialists Conference, PVSC 2011 - Seattle, WA, United States
Duration: 19 Jun 201124 Jun 2011

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371

Conference

Conference37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Country/TerritoryUnited States
CitySeattle, WA
Period19/06/1124/06/11

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