Amorphous molybdenum oxide nanorods for electrochromic applications

Author

Navas, I. ; Kumar, R. Vinod ; Maniammal, K. ; Pillai, V. P Mahadevan

fYear

2011

fDate

5-7 Oct. 2011

Firstpage

1

Lastpage

5

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2011 3rd International Congress on

Conference_Location

Budapest

ISSN

2157-0221

Print_ISBN

978-1-4577-0682-0

Type

conf

Filename

6078897