Hybrid vapor phase-solution phase growth techniques for improved CZT(S,Se) photovoltaic device performance

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United States of America Patent

PATENT NO 9530908
APP PUB NO 20160141434A1
SERIAL NO

14540986

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Abstract

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A hybrid vapor phase-solution phase CZT(S,Se) growth technique is provided. In one aspect, a method of forming a kesterite absorber material on a substrate includes the steps of: depositing a layer of a first kesterite material on the substrate using a vapor phase deposition process, wherein the first kesterite material includes Cu, Zn, Sn, and at least one of S and Se; annealing the first kesterite material to crystallize the first kesterite material; and depositing a layer of a second kesterite material on a side of the first kesterite material opposite the substrate using a solution phase deposition process, wherein the second kesterite material includes Cu, Zn, Sn, and at least one of S and Se, wherein the first kesterite material and the second kesterite material form a multi-layer stack of the absorber material on the substrate. A photovoltaic device and method of formation thereof are also provided.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Liang-Yi White Plains, US 10 5
Gershon, Talia S White Plains, US 93 110
Haight, Richard A Mahopac, US 71 404
Lee, Yun Seog White Plains, US 91 120

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