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US 8,283,187 B2Granted
Photovoltaic device and method for making
AssigneeGeneral Electric Company
InventorsDalong Zhong, Gautam Parthasarathy, Richard Arthur Nardi, Jr.
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Abstract
One aspect of the present invention provides a device that includes a substrate; a first semiconducting layer; a transparent conductive layer; a transparent window layer. The transparent window layer includes cadmium sulfide and oxygen. The device has a fill factor of greater than about 0.65. Another aspect of the present invention provides a method of making the device.
Claims8
A method to make a photovoltaic device comprising:
- disposing a transparent conductive layer on a substrate;
- disposing a transparent window layer on the transparent conductive layer;
- disposing a first semiconducting layer adjacent to the transparent window layer;
- wherein disposing the transparent window layer comprises:
- providing a target comprising a semiconductor material within an environment comprising oxygen, wherein the semiconductor material comprises cadmium and sulfur;
- applying a plurality of direct current (DC) pulses to the target to create a pulsed DC plasma;
- sputtering the target with the pulsed DC plasma to eject a material comprising cadmium and sulfur into the plasma;
- and
- depositing a film comprising the material onto a substrate.
6 more elements
Dependencies are inferred from the claim text.