Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/97530
Title: Enhanced photoelectrochemical water-splitting effect with a bent ZnO nanorod photoanode decorated with Ag nanoparticles
Authors: Wei, Yuefan
Ke, Lin
Kong, Junhua
Liu, Hong
Jiao, Zhihui
Lu, Xuehong
Du, Hejun
Sun, Xiaowei
Issue Date: 2012
Source: Wei, Y., Ke, L., Kong, J., Liu, H., Jiao, Z., Lu, X., et al. (2012). Enhanced photoelectrochemical water-splitting effect with a bent ZnO nanorod photoanode decorated with Ag nanoparticles. Nanotechnology, 23(23).
Series/Report no.: Nanotechnology
Abstract: Zinc oxide (ZnO) nanorods coated with silver (Ag) film on a polyethylene terephthalate (PET) flexible substrate were used as the photoanode for water splitting. The hybrid nanostructures were prepared via low-temperature hydrothermal growth and electron beam evaporation. The effects of plasmonic enhanced absorption, surface recombination inhibition and improved charge transport are investigated by varying the Ag thickness. Light trapping and absorption enhancement are further studied by optimizing the curvature of the PET substrates. The maximum short circuit current density (JSC, 0.616 mA cm−2) and the photoelectron conversion efficiency (PCE, 0.81%) are achieved with an optimized Ag film thickness of 10 nm and substrate bending radius of 6.0 mm. The maximum JSC and PCE are seven times and ten times, respectively, higher than those of the bare ZnO nanorods on flexible substrates without bending. The overall PEC performance improvement is attributed to the plasmonic effects induced by Ag film and improved charge transport due to inhibition of ZnO surface charge recombination. Enhanced light trapping (harvesting) induced by bending the PET substrates further improved the overall efficiency.
URI: https://hdl.handle.net/10356/97530
http://hdl.handle.net/10220/10642
ISSN: 0957-4484
DOI: 10.1088/0957-4484/23/23/235401
Schools: School of Electrical and Electronic Engineering 
School of Materials Science & Engineering 
School of Mechanical and Aerospace Engineering 
Rights: © 2012 IOP Publishing Ltd.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Journal Articles
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