Formation of zinc oxide nanostructures by wet oxidation of vacuum deposited Zn thin film

  • Mary Donnabelle L. Balela
  • Christian Mark O. Pelicano
  • Jennifer Damasco Ty
  • Hisao Yanagi
Article

DOI: 10.1007/s11082-016-0834-1

Cite this article as:
Balela, M.D.L., Pelicano, C.M.O., Ty, J.D. et al. Opt Quant Electron (2017) 49: 3. doi:10.1007/s11082-016-0834-1
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Part of the following topical collections:
  1. Photonic Science and Engineering on the Micro/Nano Scale

Abstract

Zinc oxide (ZnO) nanostructures with various morphologies (pencil-like nanorods, nanotubes, and lotus-like structures) have been successfully formed by simple oxidation of vacuum deposited Zn thin film on glass/ITO substrates in hot water at 90 °C. The morphology evolved from pencil-like nanorods to nanotubes to lotus-like structures with prolonged oxidation of Zn thin film for 6–24 h. The change in morphology of ZnO is attributed to the combined effects of electrochemical reactions in the solution, morphology and structure of Zn thin film, and wurtzite structure of resulting ZnO. A hybrid organic–inorganic solar cell following an inverted bulk heterojunction configuration was fabricated based on the lotus-like ZnO structures. The solar cell achieved a power conversion efficiency of up to 1.18%, which demonstrates the applicability of the technique for photovoltaic applications.

Keywords

Zinc oxide Wet oxidation Hot water Hybrid solar cell Nanostructures 

Funding information

Funder NameGrant NumberFunding Note
Department of Science and Technology under the Engineering Research and Development for Technology
    College of Engineering, University of the Philippines-Diliman

      Copyright information

      © Springer Science+Business Media New York 2016

      Authors and Affiliations

      • Mary Donnabelle L. Balela
        • 1
      • Christian Mark O. Pelicano
        • 1
        • 2
      • Jennifer Damasco Ty
        • 2
      • Hisao Yanagi
        • 2
      1. 1.Sustainable Electronic Materials Group, Department of Mining, Metallurgical and Materials EngineeringUniversity of the Philippines DilimanQuezon CityPhilippines
      2. 2.Graduate School of Materials ScienceNara Institute of Science and TechnologyIkomaJapan

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