Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/106604
Title: Morphology and stoichiometry control of hierarchical CuInSe2/SnO2 nanostructures by directed electrochemical assembly for solar energy harvesting
Authors: Sun, Juan
Sun, Cheng
Batabyal, Sudip Kumar
Tran, Phong D.
Pramana, Stevin S.
Wong, Lydia Helena
Mhaisalkar, Subodh Gautam
Issue Date: 2011
Source: Sun, J., Sun, C., Batabyal, S. K., Tran, P. D., Pramana, S. S., Wong, L. H., et al. (2012). Morphology and stoichiometry control of hierarchical CuInSe2/SnO2 nanostructures by directed electrochemical assembly for solar energy harvesting. Electrochemistry Communications, 15(1), 18-21.
Series/Report no.: Electrochemistry communications
Abstract: CuInSe2/SnO2 core–shell and hierarchical branched nanostructures were produced by directed electrochemical assembly. By changing the spatial electric field along the deposition region, we can control the morphology and stoichiometry of deposited product from In-poor-CuInSe2 nanoparticles to near stoichiometry CuInSe2 branched nanowires. A combination of FESEM, TEM, XRD and Raman spectroscopy investigations reveals that both morphology and chemical compositions of CuInSe2 strongly depend on the spatial electric field distribution on the SnO2/Si substrate. We observed that higher reducing potential can assist the formation of CuInSe2 with uniform coverage at the cathode side, but only In-poor-CuInSe2 nanoparticles are formed on the anode side. Optical and photo-electrochemical examination confirmed the potential application of these core–shell nanostructures for solar energy harvesting.
URI: https://hdl.handle.net/10356/106604
http://hdl.handle.net/10220/10852
ISSN: 1388-2481
DOI: 10.1016/j.elecom.2011.11.015
Rights: © 2011 Elsevier B.V.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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