NDLI: Improved performance in CuInSe/sub 2/ and surface-modified CuGaSe/sub 2/ solar cells

Content Provider	IEEE Xplore Digital Library
Author	Jehad AbuShama Noufi, R. Johnston, S. Ward, S. Wu, X.
Copyright Year	2005
Description	Author affiliation: Nat. Renewable Energy Lab., Golden, CO, USA (Jehad AbuShama; Noufi, R.; Johnston, S.; Ward, S.; Wu, X.)
Abstract	In this paper, we present an update and review on the progress made in the development of low-bandgap CuInSe/sub 2/ (CIS) and wide-bandgap CuGaSe/sub 2/ (CGS) solar cells. Our research project is primarily concerned with the optimization of the bottom and top cells of the tandem solar cell. This past year, we established new record total-area efficiencies of 15.0% and 10.2% for CIS and surface-modified CGS solar cells, respectively. These achievements were possible by modifying the growth process for CIS and CGS absorbers. We attempt to modify the surface region of the CGS absorber to be CIGS-like in composition. We also have designed a mechanical-stacked tandem solar cell where the 15% CIS cell serves as the bottom cell and transparent CdTe cell serves as the top cell. The NREL-confirmed total-area efficiency for this CdTe/CIS tandem device is 15.31%.
Sponsorship	IEEE Electron Devices Soc. (USA)
Starting Page	299
Ending Page	302
File Size	903168
Page Count	4
File Format	PDF
ISBN	0780387074
ISSN	01608371
DOI	10.1109/PVSC.2005.1488128
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-01-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photovoltaic cells Computational Intelligence Society Zinc oxide Transistors Temperature Chemicals Sputtering Spectroscopy Scanning electron microscopy Transmission electron microscopy
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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