Plasmon-exciton interactions in hybrid structures of Au nanohemispheres and CdS nanowires for improved photoconductive devices

Abbas I. Maaroof, Hyungwoo Lee, Kwang Heo, June Park, Duckhyung Cho, Byung Yang Lee, Maeng Je Seong, Seunghun Hong

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We developed a method to prepare photoconductive channels of hybrid nanostructures based on Au nanohemispheres (Au NHs) and cadmium sulfide nanowires (CdS NWs) for photoconductive applications. The hybrid nanostructures exhibited enhanced absorbance, which was attributed to the strong electronic coupling between plasmons in Au NHs and excitons in CdS NWs. The photoconductive channels based on the hybrid nanostructures showed an increase in photocurrent level by ∼5× compared to bare CdS NWs. Because our strategy can be utilized to improve the photoconductivity of quite versatile photoconductive channels, it can be a powerful method for the development of various advanced optoelectronic and photovoltaic devices.

Original languageEnglish
Pages (from-to)24543-24548
Number of pages6
JournalJournal of Physical Chemistry C
Volume117
Issue number46
DOIs
Publication statusPublished - 2013 Nov 21

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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