Parameter studies and analysis of high efficiency Cu(In,Ga)Se/sub 2/ based solar cells

Autor:	R. Menner, H.W. Schock, T. Walter, L. Kaser, M. Ruckh
Rok vydání:	2002
Předmět:	Semiconductor thin films Morphology (linguistics) Materials science Ternary semiconductors Analytical chemistry chemistry.chemical_element Auger law.invention Metal X-ray photoelectron spectroscopy chemistry law visual_art Solar cell visual_art.visual_art_medium Gallium
Zdroj:	The Conference Record of the Twenty-Second IEEE Photovoltaic Specialists Conference - 1991.
DOI:	10.1109/pvsc.1991.169344
Popis:	Solar cells based on Cu(In,Ga)Se/sub 2/ with gallium contents of 20% and 40% have been prepared and analyzed. Efficiencies exceeding 12% have been obtained. This contribution focuses on XRD, XPS and UPS analysis of these films. The influence of morphology, orientation of the grains, bulk composition, and secondary phases detected by surface analysis on the solar cell characteristics are presented and discussed. The existence of a metallic behavior on the Cu-rich side is shown and correlated to a shift in the Auger structure of Se and Cu. The possibility of passivating oxides is demonstrated. >
Databáze:	OpenAIRE
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