Characterizations study ZnO-TiO2 nanorods thick films as P hot detector

Abstract EN

First,ZnO nanorod s were su ccessfu lly synthesized by simple evaporation method,u sing single stage controllable horizontaltu be fu rnace and qu artz tu be withou tcatalyst.The ZnO nano powd erwas mix ed with (10 and 20%)of TiO 2 powd er(weightratio), then ZnO -TiO 2 thickfilms were synthesized u singsimple, low-cost efficient screen print techniqu e.

The thick films were heated at 500 C ˚ for one hou rto remove the organic bind erand anyimpu rities.The prepared thickfilms were examined withX -Ray,and FESEM to stu d y the stru ctu raland morphology of the films,the X -ray resu lts show thatthe films are polycrystalline withsharpand highintensitypeaksindicatinghighcrystalinityofthe prod u ct.The FESEM pictu res show nanorod s withdiameters less than 100 nm and severalmicrometers in length of ZnO withTiO 2 nanoparticles.

ZnO-TiO 2 d evice was bu iltu pby electrodingthe thickfilms.The I-V characterization of the films were stu died in darkand light, thenphoto d etectionparameters were estimated and itwas fou nd to be efficientand highresponse inUV range d etection.