Zinc oxide film method and structure for cigs cell

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United States of America Patent

PATENT NO 8557625
SERIAL NO

13371239

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Abstract

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A method for fabricating a thin film photovoltaic device. The method includes providing a substrate comprising an absorber layer and an overlying window layer. The substrate is loaded into a chamber and subjected to a vacuum environment. The vacuum environment is at a pressure ranging from 0.1 Torr to about 0.02 Torr. In a specific embodiment, a mixture of reactant species derived from diethylzinc species, water species and a carrier gas is introduced into the chamber. The method further introduces a diborane species using a selected flow rate into the mixture of reactant species. A zinc oxide film is formed overlying the window layer to define a transparent conductive oxide using the selected flow rate to provide a resistivity of about 2.5 milliohm-cm and less and an average grain size of about 3000 to 5000 Angstroms.

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Patent Owner(s)

Patent OwnerAddress
STION CORPORATION6321 SAN IGNACIO AVENUE SAN JOSE CA 95119

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wieting, Robert D San Jose, US 66 1863

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