Titanium dioxide sol-gel schottky diodes and effect of titanium dioxide nanoparticle

Abstract

This paper reports the effect of Titanium dioxide (TiO2) nanoparticles on a TiO2 sol-gel Schottky diode. TiO2 nanoparticles were blended with TiO2 sol-gel to fabricate the Schottky diode. TiO2 nanoparticles showed strong anatase and rutile X-ray diffraction peaks. However, the mixture of TiO2 sol-gel and TiO2 nanoparticles exhibited no anatase and rutile peaks. The forward current of the Schottky diode drastically increased as the concentration of TiO2 nanoparticles increased up to 10 wt. % and decreased after that. The possible conduction mechanism is more likely space charge limited conduction.