Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10624412 | Ceramics International | 2016 | 5 Pages |
Abstract
Transparent Mg-doped p-type conductive SnO2 thin films were fabricated on quartz substrates by sol-gel method. Effect of Mg doping on structural, morphological, optical, and electrical properties of SnO2 films were investigated. A single phase of tetragonal rutile structure was observed in Mg-doped SnO2 films. The optical bandgap energy of the Mg-doped SnO2 films showed a systematical redshift with respect to the undoped SnO2 film, and the resistivity significantly increased with the increase of Mg concentration. A conduction type transform from n to p was also observed. The strong ultraviolet and comparatively weak blue/green emissions were observed in room temperature photoluminescence, suggesting the dipole-forbidden rule of bulk SnO2 is broken in Mg-doped SnO2 films. These results were supported by first-principles electronic structure calculations.
Keywords
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Xia Li, Rui Deng, Yongfeng Li, Bin Yao, Zhanhui Ding, Jieming Qin, Qingcheng Liang,