Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1609400 | Journal of Alloys and Compounds | 2015 | 13 Pages |
Abstract
As opposed to Ti-doping which has a detrimental effect on layers structure, Mo addition, even in high concentrations, has a positive effect on layers crystallinity; hence higher conductivity and ideality factors close to 1 are obtained for these films. Surprisingly, Ti and Mo-WO3 films contain cation additives also in lower oxidation states, 3+ and 5+, respectively, compared to the ones in the precursor salt. A 2Â at.% Ti concentration is enough to significantly improve the photoconductivity of the WO3 films, whereas for Mo addition higher levels are needed (10Â at.%). The Ti and Mo-WO3 films have high transparency with average transmission values of 85% and 75%, respectively. The thin films reflectance decreases with increasing doping concentration along with roughness diminution.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Laura Maria Manceriu, Aline Rougier, Anca Duta,