Wire-shaped electrode of CdSe-sensitized ZnO nanowire arrays for photoelectrochemical hydrogen generation
Journal
Electrochemistry Communications
Journal Volume
12
Journal Issue
11
Pages
1513-1516
Date Issued
2010
Author(s)
Abstract
We combined CdSe nanoparticles and ZnO nanowire arrays to demonstrate a wire-shaped electrode for photoelectrochemical hydrogen generation illuminated with AM 1.5 spectrum. An array of ZnO nanowires was grown vertically and radially outward from a Cu-wire mesh substrate. CdSe nanoparticles were attached to the surface of the orientated ZnO nanowires. Such wire-shaped electrode with radially outward orientated CdSe/ZnO nanowires provided improved electrolyte mass transport and minimized loss of incident photons. CdSe/ZnO nanowires were formed in all directions over the Cu wire, leading to low incident-light-angle dependence. For photoelectrochemical hydrogen generation under one-sun irradiation, the wire-shaped electrode device outperformed the planar-shaped electrode device by at least 30%. © 2010 Elsevier B.V. All rights reserved.
Subjects
CdSe; Nanowire; Photoelectrochemical hydrogen generation; ZnO
SDGs
Other Subjects
Angle dependence; CdSe; CdSE nanoparticles; CdSe/ZnO; Cu wires; Mass transport; Photoelectrochemical hydrogen; Planar-shaped; Sun irradiation; Wire meshes; ZnO; ZnO nanowire arrays; ZnO nanowires; Cadmium alloys; Cadmium compounds; Nanoparticles; Nanowires; Wire; Zinc oxide; Hydrogen production
Type
journal article