Coating and enhanced photocurrent of vertically aligned zinc oxide nanowire arrays with metal sulfide materials

Michael Volokh, Mahmud Diab, Osnat Magen, Ilan Jen-La Plante, Kobi Flomin, Pazit Rukenstein, Nir Tessler, Taleb Mokari

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Hybrid nanostructures combining zinc oxide (ZnO) and a metal sulfide (MS) semiconductor are highly important for energy-related applications. Controlled filling and coating of vertically aligned ZnO nanowire arrays with different MS materials was achieved via the thermal decomposition approach of single-source precursors in the gas phase by using a simple atmospheric-pressure chemical vapor deposition system. Using different precursors allowed us to synthesize multicomponent structures such as nanowires coated with alloy shell or multishell structures. Herein, we present the synthesis and structural characterization of the different structures, as well as an electrochemical characterization and a photovoltaic response of the ZnO-CdS system, in which the resulting photocurrent upon illumination indicates charge separation at the interface.

Original languageEnglish
Pages (from-to)13594-13599
Number of pages6
JournalACS applied materials & interfaces
Volume6
Issue number16
DOIs
StatePublished - 27 Aug 2014

Keywords

  • chemical vapor deposition
  • hybrid nanostructure
  • metal sulfides
  • nanowires
  • single-source precursors

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