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Title: | Hysteresis-free electron currents in poly(p-phenylene vinylene) derivatives | Authors: | Craciun, N. I. Zhang, Yinhuo PALMAERTS, Arne Nicolai, H. T. Kuik, M. Kist, R. J. P. Wetzelaer, G. A. H. Wildeman, J. VANDENBERGH, Joke LUTSEN, Laurence VANDERZANDE, Dirk Blom, P. W. M. |
Issue Date: | 2010 | Publisher: | AMER INST PHYSICS | Source: | JOURNAL OF APPLIED PHYSICS, 107(12) | 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(16) cm(-3) range, are not responsible for the trap-limited electron transport as observed in purified PPV. (C) 2010 American Institute of Physics. [doi:10.1063/1.3432744] | Notes: | [Craciun, N. I.; Zhang, Y.; Nicolai, H. T.; Kuik, M.; Kist, R. J. P.; Wetzelaer, G. A. H.; Wildeman, J.; Blom, P. W. M.] Univ Groningen, Zernike Inst Adv Mat, NL-9747 AG Groningen, Netherlands. [Palmaerts, A.; Vandenbergh, J.; Vanderzande, D.] Hasselt Univ, Inst Mat Res IMO, B-3590 Diepenbeek, Belgium. [Blom, P. W. M.] TNO Holst Ctr, NL-5606 KN Eindhoven, Netherlands. [Lutsen, L.] IMEC IMOMEC, B-3590 Diepenbeek, Belgium. p.w.m.blom@rug.nl | Document URI: | http://hdl.handle.net/1942/11144 | ISSN: | 0021-8979 | e-ISSN: | 1089-7550 | DOI: | 10.1063/1.3432744 | ISI #: | 000279993900146 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2011 |
Appears in Collections: | Research publications |
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