Hysteresis-free electron currents in poly(p-phenylene vinylene) derivatives
| Autor: | Arne Palmaerts, Herman T. Nicolai, Martijn Kuik, Gert-Jan A. H. Wetzelaer, Laurence Lutsen, Jurjen Wildeman, R. J. P. Kist, N. I. Craciun, Yinhuo Zhang, Joke Vandenbergh, Paul W. M. Blom, Dirk Vanderzande |
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| Přispěvatelé: | TNO Industrie en Techniek, Zernike Institute for Advanced Materials |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
chemistry.chemical_classification
Free electron model Conductive polymer TS - Technical Sciences Industrial Innovation Doping Analytical chemistry General Physics and Astronomy HOL - Holst Poly(p-phenylene vinylene) Polymer Mechatronics Mechanics & Materials Electron transport chain TRANSPORT OXYGEN Hysteresis chemistry.chemical_compound chemistry Electrode Polymer chemistry Electronics |
| Zdroj: | Journal of Applied Physics, 12, 107 Journal of Applied Physics, 107(12):124504. AMER INST PHYSICS |
| ISSN: | 0021-8979 |
| Popis: | 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 1016 cm-3 range, are not responsible for the trap-limited electron transport as observed in purified PPV. © 2010 American Institute of Physics. |
| Databáze: | OpenAIRE |
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