Wednesday, December 10, 2014

Facile approaching hierarchical CdS films as electrode toward photoelectrochemical water splitting

The facile generation of hierarchical CdS films and their accompanying application comparison as efficient photocatalytic electrodes toward water splitting were successfully achieved in this study. Three hierarchical CdS films, including nanoparticle packing film (CdS P ), neat film (CdS N ) and homojunction film (CdS H ) deposited on an indium tin oxide (ITO) substrate, were realized by virtue of chemical bath deposition (CBD), atomic layer deposition (ALD) and the well-programmed combinational deposition (PCD) protocol with the above two processes successively. The experimental details demonstrate that the CdS H film acquired from PCD affords an amazing photocatalytic boost toward water splitting, which may profit from the larger surface area and from better absorption. The adoption of CdS H film as a photocatalyst can result in up to 22.18 times or 3.34 times the enhancement of the photocurrent density compared to reference device...

Xin Guo, Junjun Zhu, Huaixin Wei, Shuit-Tong Lee, Yanqing Li and Jianxin Tang

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