کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
80860 | 49406 | 2006 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Optical and electrochemical properties of V2O5:Ta Sol–Gel thin films Optical and electrochemical properties of V2O5:Ta Sol–Gel thin films](/preview/png/80860.png)
Vanadium and tantalum-doped vanadium pentoxide, V2O5 and V2O5:Ta thin films (2.5 and 5 mol% of Ta) were prepared using sol–gel dip-coating technique.The coating solutions were prepared by reacting vanadium (V) oxytripropoxide and tantalum ethoxide (V) as precursors using anhydrous isopropyl alcohol as solvent.The films were deposited on a transparent glass substrate with ITO conducting film by dip-coating technique, with a withdrawal of 20 cm/min from the vanadium–tantalum solution and heat treated at 300 °C for 1 h. The resulting films were characterized by cyclic voltammetry, optical spectroscopy and by X-ray diffraction analysis (XRD). XRD data show that the films thermally treated at 300 °C were crystalline.A charge density of 70 mC/cm2 was obtained for the film with 5 mol% of Ta, with an excellent stability up to 1500 cycles.
Journal: Solar Energy Materials and Solar Cells - Volume 90, Issue 4, 6 March 2006, Pages 444–451