Hysteresis-free electron currents in poly(p-phenylene vinylene) derivatives

被引：23

作者：

Craciun, N. I. ^{[1
]}

Zhang, Y. ^{[1
]}

Palmaerts, A. ^{[2
]}

Nicolai, H. T. ^{[1
]}

Kuik, M. ^{[1
]}

Kist, R. J. P. ^{[1
]}

Wetzelaer, G. A. H. ^{[1
]}

Wildeman, J. ^{[1
]}

Vandenbergh, J. ^{[2
]}

Lutsen, L. ^{[4
]}

Vanderzande, D. ^{[2
]}

Blom, P. W. M. ^{[1
,3
]}

机构：

[1] Univ Groningen, Zernike Inst Adv Mat, NL-9747 AG Groningen, Netherlands

[2] Hasselt Univ, Inst Mat Res IMO, B-3590 Diepenbeek, Belgium

[3] TNO Holst Ctr, NL-5606 KN Eindhoven, Netherlands

[4] IMEC IMOMEC, B-3590 Diepenbeek, Belgium

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 107卷 / 12期

关键词：

TRANSPORT; OXYGEN;

D O I：

10.1063/1.3432744

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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]

引用

页数：5

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