Back to Search
Start Over
Hysteresis-free electron currents in poly(p-phenylene vinylene) derivatives.
- Source :
- Journal of Applied Physics; Jul2010, Vol. 107 Issue 12, p124504, 5p, 1 Diagram, 1 Chart, 8 Graphs
- Publication Year :
- 2010
-
Abstract
- The interpretation of electron currents in conjugated polymers is strongly hindered by the occurrence of hysteresis. We investigate the transport of electrons in electron-only devices based on derivatives of poly(p-phenylene vinylene) (PPV) for various hole-blocking bottom electrodes as well as purification of the polymer. The use of a variety of hole blocking bottom contacts, as metallic electrodes and n-type doped polymers, did not give any improvement in the observed hysteresis. By purification of the PPV, hysteresis free electron-only currents can be obtained. The deep traps responsible for hysteresis, with a concentration in the 10<superscript>16</superscript> cm<superscript>-3</superscript> range, are not responsible for the trap-limited electron transport as observed in purified PPV. [ABSTRACT FROM AUTHOR]
- Subjects :
- MACROMOLECULES
HYSTERESIS
ELASTICITY
ELECTROMAGNETIC induction
POLYMERS
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 107
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 51848810
- Full Text :
- https://doi.org/10.1063/1.3432744