Publication detail

Thin polyphenylene vinylene electrophoretically and spin-coated films - photoelectrical properties

MLADENOVA, D. ZHIVKOV, I. OUZZANE, I. VALA, M. HEINRICHOVÁ, P. BUDUROVA, D. WEITER, M.

Original Title

Thin polyphenylene vinylene electrophoretically and spin-coated films - photoelectrical properties

Type

journal article - other

Language

English

Original Abstract

Electrophoretic deposition (EPD) and spin coating (SC) techniques were compared on poly[2-methoxy-5-(3',7'-dimethyloctyloxy)-1,4-phenylene vinylene] (MDMO-PPV) used as a model material. Absorption spectra measured in a toluene solution and a toluene/ acetonitrile suspension with the same MDMO-PPV concentration of 0.0033 g.l-1 were analysed. An observed broadening of the characteristic absorption peak could be related to the formation of tightlyfolded polymer chains in the suspension. Thin films of about 300 nm thickness were prepared by EPD from suspension and SC from solution with a concentration of 0.0033 g.l-1 and 8.95 g.l-1, respectively. The ITO|MDMO-PPV|Al structures with EPD MDMO-PPV films behave as a photovoltaic cell, while the same sample configuration with SC MDMO-PPV films acts more like a photoresistor. EPD and SC films exhibit the same charge-carrier photogeneration mechanism. It was clearly demonstrated that the EPD method uses the deposited material more efficiently, producing films with better photoelectrical properties.

Keywords

molecular electronics, organic solar cells, electrophoretic deposition, spin coating, poly[2-methoxy-5-(3',7'-dimethyloctyloxy)-1,4-phenylene vinylene]

Authors

MLADENOVA, D.; ZHIVKOV, I.; OUZZANE, I.; VALA, M.; HEINRICHOVÁ, P.; BUDUROVA, D.; WEITER, M.

RIV year

2012

Released

10. 12. 2012

Publisher

IOPscience (Institute of Physics)

ISBN

1742-6596

Periodical

Journal of Physics: Conference Series

Year of study

398

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

6

Pages count

6

URL

http://iopscience.iop.org/1742-6596/398/1/012056/

BibTex

@article{BUT94438,
  author="MLADENOVA, D. and ZHIVKOV, I. and OUZZANE, I. and VALA, M. and HEINRICHOVÁ, P. and BUDUROVA, D. and WEITER, M.",
  title="Thin polyphenylene vinylene electrophoretically and spin-coated films - photoelectrical properties",
  journal="Journal of Physics: Conference Series",
  year="2012",
  volume="398",
  number="1",
  pages="1--6",
  issn="1742-6596",
  url="http://iopscience.iop.org/1742-6596/398/1/012056/"
}