CO-EXISTENCE OF F AND Sb DOPANTS IN TRANSPARENT CONDUCTING SnO2 THIN FILMS PREPARED BY ULTRASONIC SPRAY PYROLYSIS METHOD
Thin films of undoped, fluorine(F)- doped, antimony (Sb)-doped, fluorine and antimony co-doped SnO2 thin films were prepared by ultrasonic spray pyrolysis technique using SnCl2, NH4F and SbCl3 as precursors of Sn, F and Sb elements respectively. In F and Sb co-doped SnO2 films, the proportions of F and Sb to Sn in starting solution were found to be 15 and 2 wt％. XRD patterns showed that the preferred orientation of undoped, SnO2:F, SnO2:Sb and SnO2:F,Sb was dependent on the doping concentration and on annealing atmosphere. The variation of doping concentration and preferred orientation of the films was reflected in their morphology as investigated by SEM. The annealed SnO2:F, Sb films showed the lower transmission value than the value obtained in the as-prepared SnO2:F, Sb films. Photoluminescence spectra of the undoped SnO2 films showed a broad emission band peaking around 400, 430, and 520 nm. This emission band may be attributed to oxygen vacancy and surface defects.
Ngamnit Wongcharoen Thitinai Gaewdang
Department of Applied Physics, Faculty of Science King Mongkut’s Institute of Technology Ladkrabang 3 Moo 2, Chalongkrung Rd., Ladkrabang, Bangkok 10520, Thailand.
国际会议
2007世界太阳能大会(Proceedings of ISES Solar World Congress 2007)
北京
英文
2007-09-18（万方平台首次上网日期，不代表论文的发表时间）