Hybrid vapor phase-solution phase growth techniques for improved CZT(S,Se) photovoltaic device performance
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.
- Research Organization:
- International Business Machines Corp., Armonk, NY (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- EE0006334
- Assignee:
- International Business Machines Corporation (Armonk, NY)
- Patent Number(s):
- 9,530,908
- Application Number:
- 14/540,986
- OSTI ID:
- 1337626
- Resource Relation:
- Patent File Date: 2014 Nov 13
- Country of Publication:
- United States
- Language:
- English
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