Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 10, Issue 4, Pages 639-642Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2008.02.008
Keywords
photoelectrochemistry; photovoltaics; Cu2ZnSnS4; CZTS; solar cell; semiconductor
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Funding
- EPSRC [EP/F029624/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/F029624/1] Funding Source: researchfish
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The feasibility of a new fabrication route for films of the attractive solar absorber Cu2ZnSnS4 (CZTS) has been studied, consisting of electrodeposition of metallic precursors followed by annealing in sulfur vapour. Photoelectrochemical measurements using a Eu3+ contact have been used to establish that the polycrystalline CZTS films are p-type with doping densities in the range (0.5-5) x 10(16) cm(-3) and band gaps of 1.49 +/- 0.01 eV, making them suitable for terrestrial solar energy conversion. It has been shown that a somewhat Cu-poor composition favours good optoelectronic properties. (C) 2008 Elsevier B.V. All rights reserved.
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