期刊
SUPERLATTICES AND MICROSTRUCTURES
卷 86, 期 -, 页码 186-197出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.spmi.2015.07.005
关键词
Spray pyrolysis; SnO2; Double doping; Structural properties; Electrical properties; Optical properties
资金
- University Grants Commission of India through the Minor Research Project [F: (MRP-5663/15 (SERO/UGC)]
Silicon and fluorine (Si + F) co-doped SnO2 thin films were deposited on soda lime glass substrate using the spray pyrolysis technique. The Si and F doping levels were varied from 0-10 and 2.5-10 in steps of 2.5 at. %, respectively. Initially the optimum doping level of Si is found (7.5 at. %) at which the film exhibits the minimum electrical resistivity value (4.23 x 10(-3) Omega cm) and then the doping level of F is varied and it is found to be better at 10 at. % on which it offers lower resistivity of 1.96 x 10(-4) Omega cm. From the structural studies, it is observed that the preferential orientation of all the films is along (2 1 1) plane irrespective of dopant and level of doping, but the peak intensity decreases as the doping level increases. The average transmittance of the all the films is found to be around 75% in the visible region and the optical band gap of the films are found to be in the region of 3.79-3.99 eV. (C) 2015 Elsevier Ltd. All rights reserved.
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