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Title: 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.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1337626
Assignee:
International Business Machines Corporation (Armonk, NY) DOEEE
Patent Number(s):
9,530,908
Application Number:
14/540,986
Contract Number:
EE0006334
Resource Relation:
Patent File Date: 2014 Nov 13
Research Org:
International Business Machines Corporation, Armonk, NY (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 14 SOLAR ENERGY

Other works cited in this record:

The path towards a high-performance solution-processed kesterite solar cell
journal, June 2011
  • Mitzi, David B.; Gunawan, Oki; Todorov, Teodor K.
  • Solar Energy Materials and Solar Cells, Vol. 95, Issue 6, p. 1421-1436
  • DOI: 10.1016/j.solmat.2010.11.028

Device Characteristics of CZTSSe Thin-Film Solar Cells with 12.6% Efficiency
journal, November 2013
  • Wang, Wei; Winkler, Mark T.; Gunawan, Oki
  • Advanced Energy Materials, Vol. 4, Issue 7, Article No. 1301465
  • DOI: 10.1002/aenm.201301465

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