Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5461456 | Journal of Alloys and Compounds | 2017 | 20 Pages |
Abstract
The morphology and properties of the transparent SnO2:F (FTO) films, deposited by RF magnetron sputtering at varying oxygen flows from 0â¼3sccm, were examined. For FTO films deposited with 0â¼1sccm O2, the polar unsaturated (101) planes were the preferred orientation, resulting in resistivity values as low as 10â3 Ω cm, and the transparency of 86.5% in the visible range. The saturated (110) orientation planes associated with {101} facets formed knee twin crystallites for the FTO film prepared at 2sccm O2. Further increases of O2 led to severe mis-orientation of the crystals. The average transparency in the visible range increased up to 95%, but these FTO films were hardly conductive due to the oversupply of O2. The optical band gaps became wide at first and then narrow again as the increases of the oxygen flow rates.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Fayu Wu, Xinru Tong, Zhuo Zhao, Jianbo Gao, Yanwen Zhou, Peter Kelly,