FABRICATION OF UNIFORM AND COMPACTZnOTHIN FILMS BY LANGMUIR–BLODGETT METHOD

Qian Feng, Dongyan Tang (), Zaiqian Yu, Shuo Gu and Enying Jiang
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Qian Feng: Department of Chemistry, School of Science, Harbin Institute of Technology, Harbin 150001, P. R. China
Dongyan Tang: Department of Chemistry, School of Science, Harbin Institute of Technology, Harbin 150001, P. R. China
Zaiqian Yu: Department of Chemistry, School of Science, Harbin Institute of Technology, Harbin 150001, P. R. China
Shuo Gu: Department of Electrical and Computer Engineering, The George Washington University, Washington, DC 20052, USA
Enying Jiang: Department of Chemistry, School of Science, Harbin Institute of Technology, Harbin 150001, P. R. China

Surface Review and Letters (SRL), 2013, vol. 20, issue 05, 1-10

Abstract: In this paper, stearic acid/Zn2+monolayer were formed at air–water interface and then multilayers were deposited onto a glass slide by Langmuir–Blodgett method. After annealing at 300°C for 0.25 h and 550°C for 2 h,ZnOthin films were fabricated. The optimized parameters for monolayer formation and multilayers deposition were determined by the surface pressure-surface area (Π-A) isotherm and transfer ratio (t.r.), respectively. The results of X-ray diffraction showed that multilayers changed intoZnOthin films with hexagonal structure and of high crystallization after annealing at high temperature. The observation of SEM images indicated thatZnOthin films had a uniform and flat surface with compact arrangement.

Keywords: Langmuir–Blodgett (LB) method; zinc oxide; thin films; hexagonal wurtzite structure (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1142/S0218625X13500479

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