Title of article :
Sol–gel derived highly transparent and conducting yttrium doped ZnO films
Author/Authors :
Kaur، نويسنده , , Ravinder and Singh، نويسنده , , A.V. and Mehra، نويسنده , , R.M.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Abstract :
This paper reports the structural, electrical and optical properties of Yttrium doped zinc oxide (YZO) thin films deposited on Corning (7059) glass substrates by spin coating technique. A precursor solution of ZnO, 0.2 M in concentration was prepared from zinc acetate dissolved in anhydrous ethanol with diethanolamine as a sol gel stabilizer. Yttrium nitrate hexahydrate (Y2NO3 · 6H2O) was used as the dopant (3 wt%) in the present study. The films of different thickness in the range (200–500 nm) were prepared. The films were annealed in air at 450 °C for 1 h. It was observed that the c-axis orientation improves and the grain size increases as is indicated by an increase in intensity of the (0 0 2) peak and the decrease in the FWHM with the increase of film thickness. The resistivity decreased sharply from 2.8 × 10−2 to 5.8 × 10−3 Ω-cm as the thickness increased from 200 to 500 nm. However, the average transmittance decreased from 87% to 82.6% as the film thickness increased to 500 nm. The lowest sheet resistance of ∼120 Ω/□ was obtained for the 500 nm thick film.
Keywords :
Spin coating , Films and coatings
Journal title :
Journal of Non-Crystalline Solids
Journal title :
Journal of Non-Crystalline Solids