E-REPORT
Title Sputtered II-VI alloys and structures for tandem PV [electronic resource] : final subcontract report, 9 December 2003 - 30 July 2007 / A.D. Compaan ... [et al.].
Imprint Golden, Colo. : National Renewable Energy Laboratory, [2008]

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Description xiii, 49 p. : digital, PDF file.
Series Subcontract report ; NREL/SR-520-43954.
NREL/SR ; 520-43954.
Note Title from title screen (viewed on Jan. 6, 2009).
"September 2008."
Mode of access: Internet from the NREL web site. Address as of 1/6/09: http://www.nrel.gov/docs/fy08osti/43954.pdf ; current access available via PURL.
Subject Photovoltaic cells -- Research.
Solar cells -- Research.
Magnesium alloys.
Manganese.
Summary The major objectives of this subcontract were to explore, prepare, and test the candidate II-VI materials for top cells in two-junction devices with either monolithic two-terminal or mechanically stacked four-terminal structures. We developed two candidate alloys, CdMnTe, and CdMgTe by RF sputtering. The critical chloride treatments and related material studies revealed that CdMgTe is superior to CdMnTe. In the second year of this project, much of the effort was to develop the CdMgTe alloy. The goal of these efforts was to optimize the film deposition conditions and chloride treatments, and to identify the efficiency-limiting factors in a single-junction CdTe/CdS device that can lead to the goal of 25%-efficient tandem structures fabricated using polycrystalline thin films. The present report is the final report covering all three Phases.
Other Author Compaan, A. D. (Alvin D.), 1943-
National Renewable Energy Laboratory (U.S.)