Enhancing the current density of electrodeposited ZnO--Cu2O solar cells by engineering their heterointerfaces

Zoolfakar, Ahmad Sabirin, Rani, Rozina Abdul, Morfa, Anthony J., Balendhran, Sivacarendran, O'Mullane, Anthony P., Zhuiykov, Serge, & Kalantar-zadeh, Kourosh (2012) Enhancing the current density of electrodeposited ZnO--Cu2O solar cells by engineering their heterointerfaces. Journal of Materials Chemistry, 22(40), pp. 21767-21775.

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Abstract

Using ZnO seed layers, an efficient approach for enhancing the heterointerface quality of electrodeposited ZnO–Cu2O solar cells is devised. We introduce a sputtered ZnO seed layer followed by the sequential electrodeposition of ZnO and Cu2O films. The seed layer is employed to control the growth and crystallinity and to augment the surface area of the electrodeposited ZnO films, thereby tuning the quality of the ZnO–Cu2O heterointerface. Additionally, the seed layer also assists in forming high quality ZnO films, with no pin-holes, in a high pH electrolyte solution. X-ray electron diffraction patterns, scanning electron and atomic force microscopy images, as well as photovoltaic measurements, clearly demonstrate that the incorporation of certain seed layers results in the alteration of the heterointerface quality, a change in the heterojunction area and the crystallinity of the films near the junction, which influence the current density of photovoltaic devices.

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39 citations in Scopus
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43 citations in Web of Science®

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ID Code: 64326
Item Type: Journal Article
Refereed: Yes
Additional Information: Published prior to commencement at QUT
DOI: 10.1039/C2JM35682A
ISSN: 1364-5501
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 Royal Society of Chemistry
Deposited On: 19 Nov 2013 01:22
Last Modified: 21 Nov 2013 04:31

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