All Solution-Based Fabrication of Copper Oxide Thin Film/Cobalt-Doped Zinc Oxide Nanowire Heterojunctions

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Date

2016-07-01

Author

AKSOY, FUNDA
AKGÜL, GÜVENÇ
Turan, Raşit
Ünalan, Hüsnü Emrah

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Versatile and intriguing solution-based processes are utilized to synthesize nanostructured materials for device applications to reduce material production and device fabrication costs. This study presents results on the fabrication and characterization of copper oxide ( CuO) coated cobalt-doped zinc oxide nanowires ( Co-doped ZnO NWs)-based heterojunction diodes prepared by a two-step synthesis route through combined hydrothermal growth and sol-gel spin coating. Highly dense, well-ordered, undoped, and Co-doped ZnO NWs were successfully grown by hydrothermal method. Complementary CuO thin films were synthesized by sol-gel method and subsequently coated onto both undoped and Co-doped ZnO NWs through spin-coating technique. Enhanced diode properties with a rectification ratio of 10(3) at +/-2 V and an ideality factor of n = 2.4 ( in dark) were obtained for Co-doped ZnO NWs-based heterojunction diodes. The obtained results demonstrated that the investigated heterojunction diode structure fabricated by facile and cost-effective solution-based processes can be a promising candidate for the next generation optoelectronic devices.

Subject Keywords

Thin films, Sol-gel, Nanowires, Nanomaterials

URI

https://hdl.handle.net/11511/42225

Journal

JOURNAL OF THE AMERICAN CERAMIC SOCIETY

DOI

https://doi.org/10.1111/jace.14249

Collections

Department of Physics, Article

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Citation Formats

F. AKSOY, G. AKGÜL, R. Turan, and H. E. Ünalan, “All Solution-Based Fabrication of Copper Oxide Thin Film/Cobalt-Doped Zinc Oxide Nanowire Heterojunctions,” JOURNAL OF THE AMERICAN CERAMIC SOCIETY, pp. 2497–2503, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/42225.