Structural and optical properties of ZnO nanostructures electrochemically synthesized on AZO/Ag/AZO-multilayer-film-coated polyethersulfone substrates

Autor: Y. S. No, Chan Ho Yoo, Tae Whan Kim, Woon-Jo Cho, Su Youn Kim, Dohyun Oh, Jin Young Kim
Rok vydání: 2012
Předmět:
Zdroj: Journal of the Korean Physical Society. 60:1695-1699
ISSN: 1976-8524
0374-4884
DOI: 10.3938/jkps.60.1695
Popis: ZnO nanostructures were formed on Al-doped ZnO (AZO)/Ag/AZO-multilayer-film-coated flexible polyethersulfone (PES) substrates at low temperature by using an electrochemical deposition method. The resistivity of the AZO/Ag/AZO multilayer films decreased with increasing thickness of the Ag film. X-ray diffraction patterns for the ZnO nanostructures showed that the crystal structure of the ZnO was hexagonal wurtzite and that the orientation was along the c-axis perpendicular to the substrate. Scanning electron microscopy images showed that the ZnO nanostructures grown at current densities of −1.0 and −1.5 mA/cm2 were ZnO nanorods with diameters of 150 nm and ZnO nanoflowers with a planar dimension, respectively. Photoluminescence spectra showed that the band-edge emission peak of the ZnO nanostructures dominantly appeared in the ultraviolet region. These results showed that ZnO nanorods and nanoflowers with high quality were synthesized on AZO/Ag/AZO-multilayer-film-coated PES substrates.
Databáze: OpenAIRE
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