Photoelectrochemical Properties of Vertically Aligned CuInS2 Nanorod Arrays Prepared via Template-Assisted Growth and Transfer

Wooseok Yang, Yunjung Oh, Jimin Kim, Hyunchul Kim, Hyunjung Shin, Jooho Moon

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Although copper-based chalcopyrite materials such as CuInS2 have been considered promising photocathodes for solar water splitting, the fabrication route for a nanostructure with vertical orientation has not yet been developed. Here, a fabrication route for vertically aligned CuInS2 nanorod arrays from an aqueous solution using anodic aluminum oxide template-assisted growth and transfer is presented. The nanorods exhibit a phase-pure CuInS2 chalcopyrite structure and cathodic photocurrent response without co-catalyst loading. Small particles of CdS and ZnS were conformally decorated onto CuInS2 nanorods using a successive ion layer adsorption and reaction method. With surface modification of CdS/ZnS, the photoelectrochemical properties of CuInS2 nanorod arrays are enhanced via flat-band potential shift, as determined by analyses of onset potential and Mott-Schottky plots.

Original languageEnglish
Pages (from-to)425-431
Number of pages7
JournalACS Applied Materials and Interfaces
Volume8
Issue number1
DOIs
Publication statusPublished - 2016 Jan 13

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this