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Nanostructured ZnO films with various morphologies prepared by ultrasonic spray pyrolysis and its growing process
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SYSNO ASEP 0397870 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Nanostructured ZnO films with various morphologies prepared by ultrasonic spray pyrolysis and its growing process Author(s) Ma, H.L. (CN)
Liu, Z.W. (CN)
Zeng, D.C. (CN)
Zhong, M.L. (CN)
Yu, H.Y. (CN)
Mikmeková, Eliška (UPT-D) RIDNumber of authors 6 Source Title Applied Surface Science. - : Elsevier - ISSN 0169-4332
Roč. 283, 15 October (2013), s. 1006-1011Number of pages 6 s. Publication form Print - P Language eng - English Country NL - Netherlands Keywords ZnO ; Nanostructure ; Film ; Ultrasonic spray pyrolysis Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering R&D Projects ED0017/01/01 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UPT-D - RVO:68081731 UT WOS 000323601700144 EID SCOPUS 84883200962 DOI 10.1016/j.apsusc.2013.07.060 Annotation Nanostructured ZnO films were prepared by the ultrasonic spray pyrolysis method using Zn(CH3COO)(2)center dot 2H(2)O as a precursor. The effects of substrate temperature (T-s) on the morphology and properties were systematically studied. As the T-s increased from 430 degrees C to 610 degrees C, the morphology of the film transforms from closed packed nanosheets to dense nanocrystalline film and then to hexagonal nanorod array. The dense film formed at a temperature of 550 degrees C has the lowest electric resistivity and highest carrier concentration. The optical transmittance for all prepared samples was higher than 90%. The photoluminescence (PL) properties varied with the T-s due to the internal defect difference. The growth mechanism of ZnO film involves island growth and diffusion, which was evident by observing the samples prepared at various times. (C) 2013 Elsevier B.V. All rights reserved. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2014
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