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

fYear

2011

fDate

25-27 April 2011

Firstpage

263

Lastpage

266

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Devices, Systems and Applications (ICEDSA), 2011 International Conference on

Conference_Location

Kuala Lumpur

ISSN

2159-2047

Print_ISBN

978-1-61284-388-9

Type

conf

DOI

10.1109/ICEDSA.2011.5959076

Filename

5959076