Journal article
Effects of metal ion concentration on electrodeposited CuZnSn film and its application in kesterite Cu2ZnSnS4 solar cells
RSC Advances, Vol.5, pp.65114-65122
2015
Abstract
In this study, effects of concentrations of Cu(II), Zn(II) and Sn(II) ions in the electrolytic bath solution on the properties of electrochemically deposited CuZnSn (CZT) films were investigated. Study of the composition of a CZT film has shown that the metallic content (relative atomic ratio) in the film increased linearly with increase in the metal ion concentration. It is the first time that the relationship of the compositions of the alloy phases in the co-electrodeposited CZT film with the concentration of metal ions has been revealed. The results have confirmed that the formation and content of Cu6Sn5 and Cu5Zn8 alloy phases in the film were directly controlled by the concentration of Cu(II). SEM measurements have shown that Sn(II) has significant impact on film morphology, which became more porous as a result of the larger nucleation size of tin. The changes in the surface properties of the films was also confirmed by chronoamperometry characteristic (i-t) deposition curves. By optimization of metal ion concentrations in the electrolyte solution, a copper-poor and zinc-rich kesterite Cu2ZnSnS4 (CZTS) film was synthesized by the sulfurization of the deposited CZT film. The solar cell with the CZTS film showed an energy conversion efficiency of 2.15% under the illumination intensity of 100 mW cm(-2).
Details
- Title
- Effects of metal ion concentration on electrodeposited CuZnSn film and its application in kesterite Cu2ZnSnS4 solar cells
- Authors
- Tubshin Hreid (Author) - Queensland University of TechnologyJianjun Li (Author) - Nankai UniversityYi Zhang (Author) - Nankai UniversityHenry J. Spratt (Author) - Queensland University of TechnologyHongxia Wang (Corresponding Author) - Queensland University of TechnologyGeoffrey Will (Corresponding Author) - Queensland University of Technology
- Publication details
- RSC Advances, Vol.5, pp.65114-65122
- Publisher
- Royal Society of Chemistry
- DOI
- 10.1039/c5ra09966h
- ISSN
- 2046-2069
- Grant note
- Australian Research Council FT120100674
- Organisation Unit
- School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99737874502621
- Output Type
- Journal article
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- Chemistry, Multidisciplinary
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