Abstract
Mx, Zn 1-x O), M= Sn, Al nanofibers properties were investigated. Pure and M-doped zinc oxide films were fabricated onto a glass substrate by a facile and low cost spin coating route. X-rays analysis reveals that films crystallize with a wurtzite structure according to (002) orientation. The transmittance in the visible range was as high as 88 % at 550 nm. The doping increased slightly the transmittance, the as-grown films were high transparent in VIS and IR ranges. The optical band gap was a little bit changed by doping. AFM 3D-views revealed that grains were nanofibers with the size of 18.22, 18.23 and 44.27 nm respectively for pure, Al and Sn-doped ZnO films.
Highlights
ZnO is among a huge variety of transparent conducting oxides (TCO) which attract many researchers, due to the interesting properties such as a transparency in visible spectrum
The synthesis of nanostructures has been of growing interest owing to their promising application in nanoscale optoelectronic devices, like the generation solar cells [6,7]
We report the crystalline structure, surface morphology, optical and photoluminescence properties of pure, Al and Sn-doped ZnO films grown by spin coating route and the nanofibers fabrication
Summary
ZnO is among a huge variety of transparent conducting oxides (TCO) which attract many researchers, due to the interesting properties such as a transparency in visible spectrum. In order to improve the physical properties of ZnO, many elements such as aluminum (Al), tin (Sn), indium (In) and fluorine (F) and many others have been used as dopants [1,2,3,4,5]. The morphology of ZnO has been demonstrated to be the richest among inorganic semiconductors, and the electrical and optical properties depend considerably on both the morphology and size. In the present work we have studied the effect of cationic substitution of Zn sites by aluminum (Al) and tin (Sn), based on a purely valence considerations. We report the crystalline structure, surface morphology, optical and photoluminescence properties of pure, Al and Sn-doped ZnO films grown by spin coating route and the nanofibers fabrication
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