The Effect of a Metallic Ni Core on Charge Dynamics in CdS-Sensitized p-Type NiO Nanowire Mesh Photocathodes

Soon Hyung Kang, Nathan R. Neale, Kai Zhu, Adam F. Halverson, Yanfa Yan, Arthur J. Frank

Research output: Contribution to journalArticlepeer-review

1 Scopus Citations

Abstract

We report on the synthesis and photoelectrochemical characterization of photocathodes based on CdS-sensitized Ni-NiO core-shell nanowire mesh inverse opals (IOs). Compared to the NiO-CdS nanowire mesh IO electrode, the hole diffusion coefficient of the CdS-sensitized Ni-NiO core-shell nanowire mesh IO photocathode was one order of magnitude larger, indicating that the Ni core facilitated hole transfer in nanostructured p-type electrodes. As a result, the charge-collection efficiency of the Ni-NiO core-shell nanowire mesh IO electrode was shown to be essentially 100%.

Original languageAmerican English
Pages (from-to)13342-13347
Number of pages6
JournalRSC Advances
Volume3
Issue number32
DOIs
StatePublished - 28 Aug 2013

NREL Publication Number

  • NREL/JA-5900-58208

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