Title :
Photoconductivity of MEH-PPV:TiO2 nanocomposite thin film
Author :
Zahid, F.S.S. ; Sarah, M.S.P. ; Rusop, M.
Author_Institution :
NANO-Electron. Centre, Univ. Teknol. MARA, Shah Alam, Malaysia
Abstract :
In this research the photoconductivity of a hybrid nanocomposite thin film based on poly(2-methoxy-5-ethylhexyloxy-1,4-phenylene)vinylene (MEH-PPV) and anatase nanopowder TiO2 are studied. The MEH-PPV:TiO2 nanocomposite thin film deposited on a glass substrate have been prepared at different composition of TiO2 nanopowder (from 5wt% to 20wt%) by spin-coating method. The current-voltage (I-V) characteristics are measured by two point probe solar simulator measured in dark and under illumination. It was found that the photoconductivity showed increment in value as the composition of TiO2 increase in the polymer based solution. The optical characterization is carried out via UV-Visible absorption spectroscopy to investigate the absorbance and optical band gap.
Keywords :
filled polymers; nanocomposites; nanofabrication; nanoparticles; optical constants; organic-inorganic hybrid materials; photoconductivity; semiconductor materials; spin coating; thin films; titanium compounds; ultraviolet spectra; visible spectra; SiO2; TiO2; UV-visible absorption spectroscopy; absorbance; anatase nanopowder; current-voltage property; glass substrate; hybrid nanocomposite thin film; optical band gap; optical properties; photoconductivity; poly(2-methoxy-5-ethylhexyloxy-1,4-phenylene)vinylene; spin-coating; Gold; Indium tin oxide; Absorption Coefficient; Composition effect; MEH-PPV:TiO2 nanocomposite; Photoconductivity;
Conference_Titel :
Electronic Devices, Systems and Applications (ICEDSA), 2011 International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-61284-388-9
DOI :
10.1109/ICEDSA.2011.5959076
