TUNGSTEN OXIDE NANOSTRUCTURES FOR ENERGY STORAGE AND FIELD EMISSION APPLICATIONS

Abstract

Single crystalline tungsten oxide (WO3) nanorods were synthesized over flexible carbon fabric via simple hydrothermal method and used directly as supercapacitor (SC) electrode. WO3 nanorods with their peculiar structural features over the fabric exhibited excellent electrochemical performance with a high specific capacitance of 481.34 F/g at scan speed 10 mV s-1 . Additionally, these nanorods showed propitious as electron field emitters where the registered turn on field and estimated field enhancement values were 3.6 V/µm and 4550 respectively. These results indicate that present unique WO3 nanorods arrays over flexible carbon cloth substrate are a promising candidate for constructing high-performance solid state electronics and electrochromic devices.