Ag2S/CdS nanorod-array heterojunctions for efficient photoelectrochemical water splitting
by Rui Xie; Jinzhan Su; Liejin Guo
International Journal of Nanotechnology (IJNT), Vol. 10, No. 12, 2013

Abstract: Oriented CdS nanorod arrays (NRAs) and their heteorojunctions formed with Ag2S nanoparticles have been successfully prepared via a one-step hydrothermal method and a successive ionic layer adsorption and reaction (SILAR) process. Their morphology, structural, and optical properties were characterised by scanning electron microscope, transmission electron microscopy, X-ray diffraction, and UV-vis spectra. Photoelectrochemical properties were also studied via current-voltage (I-V) and action spectrum measurement (IPCE). The results showed that the CdS NRAs with optimal morphology can be synthesised when the S/Cd mole ratio in the precursor solution is 4/1 and a reaction time of 4 h. With SILAR deposition cycles at 4, Ag2S/CdS thin films exhibit the highest photocurrent density which is approximately three times higher compare to that of bare CdS NRAs. The efficiency improvement is understood by better charge carrier separation at the heterojunctions.

Online publication date: Tue, 07-Jan-2014

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Nanotechnology (IJNT):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email