Title :
Amorphous molybdenum oxide nanorods for electrochromic applications
Author :
Navas, I. ; Kumar, R. Vinod ; Maniammal, K. ; Pillai, V. P Mahadevan
Abstract :
Densely packed and randomly oriented amorphous MoO3 (a-MoO3) nanorods are successfully fabricated without any heat treatment using radio frequency magnetron sputtering. The influence of the RF power (viz. 150, 200 and 300 W) on the formation of the MoO3 nanorods is systematically investigated. The optimum RF power for the formation of fine amorphous MoO3 nanorods is 200 W. The amorphous nature of the films is ascertained by XRD and micro-Raman analysis. The amorphous nature and the shift in the micro-Raman bands from polycrystalline MoO3 designate the candidature of a-MoO3 nanorods for electrochromic, photochromic and memory device applications. The films exhibit photoluminescence emission bands in the UV and visible region. The nanorods exhibit better PL efficiency and electrical conductivity.
Keywords :
Raman spectra; X-ray diffraction; amorphous state; electrical conductivity; electrochromic devices; molybdenum compounds; nanofabrication; nanorods; photoluminescence; sputter deposition; MoO3; UV region; XRD; amorphous nature; densely packed amorphous molybdenum oxide nanorods; electrical conductivity; electrochromic applications; fine amorphous molybdenum oxide nanorod formation; memory device application; microRaman analysis; microRaman bands; optimum RF power; photochromic application; photoluminescence efficiency; photoluminescence emission bands; polycrystalline molybdenum oxide; power 150 W; power 200 W; power 300 W; radiofrequency magnetron sputtering; randomly oriented amorphous molybdenum oxide nanorods; visible region; Optical films; Photonic band gap; Radio frequency; Sputtering; Substrates; Surface treatment; Molybdenum oxide; RF power; amorphous nanorods; microRaman and photoluminescence;
Conference_Titel :
Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2011 3rd International Congress on
Conference_Location :
Budapest
Print_ISBN :
978-1-4577-0682-0
