| Issue |
Eur. Phys. J. Appl. Phys.
Volume 37, Number 3, March 2007
|
|
|---|---|---|
| Page(s) | 253 - 256 | |
| Section | Semiconductors and Related Materials | |
| DOI | https://doi.org/10.1051/epjap:2007032 | |
| Published online | 14 February 2007 | |
https://doi.org/10.1051/epjap:2007032
Effect of the molecular chain orientation on carrier transport and optical properties of polymer blends*
1
Department of Semiconductor Physics and Institute of Materials Science and Applied Research, Vilnius University, Saultekio 9, bldg. 3, 10222 Vilnius, Lithuania
2
Commissariat à l'Énergie Atomique, CEA-Saclay, CEA-DRT-LITEN, DSEN/GENEC/L2C, Bât. 451, Laboratoire Cellules et Composants, 91191 Gif-sur-Yvette Cedex, France
Corresponding author: vaidotas.kazukauskas@ff.vu.lt
Received:
25
July
2006
Revised:
2
October
2006
Accepted:
15
December
2006
Published online:
14
February
2007
We have investigated properties of poly(9-vinylcarbazole) (PVK) doped with 30% wt 4-dibutylamino-4'-nitrostilbene (DBANS), depending on the orientation of the polar DBANS molecules. Appearance of the orientation-induced built-in electrical field was proven optically by the Solid Electric Field Induced Second Harmonic Generation and electrically by Current-Voltage characterization. Modification of optical properties was evidenced by the spectral dependencies of absorption coefficient. The Thermally Stimulated Currents spectra demonstrated that carrier transport and trapping are affected, too.
PACS: 72.80.Le – Polymers; organic compounds (including organic semiconductors) / 81.40.Rs – Electrical and magnetic properties (related to treatment conditions) / 81.40.Tv – Optical and dielectric properties (related to treatment conditions)
© EDP Sciences, 2007
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