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Correspondence of the sign change in organic magnetoresistance with the onset of bipolar charge transport
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1.
1.Ö. Mermer, G. Veeraraghavan, T. L. Francis, Y. Sheng, D. T. Nguyen, M. Wohlgenannt, A. Köhler, M. K. Al-Suti, and M. S. Khan, Phys. Rev. B 72, 205202 (2005).
http://dx.doi.org/10.1103/PhysRevB.72.205202
2.
2.P. Desai, P. Shakya, T. Kreouzis, W. P. Gillin, N. A. Morley, and M. R. J. Gibbs, Phys. Rev. B 75, 094423 (2007).
http://dx.doi.org/10.1103/PhysRevB.75.094423
3.
3.F. L. Bloom, W. Wagemans, M. Kemerink, and B. Koopmans, Phys. Rev. Lett. 99, 257201 (2007).
http://dx.doi.org/10.1103/PhysRevLett.99.257201
4.
4.F. L. Bloom, W. Wagemans, and B. Koopmans, J. Appl. Phys. 103, 07F320 (2008).
http://dx.doi.org/10.1063/1.2839317
5.
5.J. D. Bergeson, V. N. Prigodin, D. M. Lincoln, and A. J. Epstein, Phys. Rev. Lett. 100, 067201 (2008).
http://dx.doi.org/10.1103/PhysRevLett.100.067201
6.
6.B. Hu and Y. Wu, Nature Mater. 6, 985 (2007).
http://dx.doi.org/10.1038/nmat2034
7.
7.P. Desai, P. Shakya, T. Kreouzis, and W. P. Gillin, J. Appl. Phys. 102, 073710 (2007).
http://dx.doi.org/10.1063/1.2787158
8.
8.P. A. Bobbert, T. D. Nguyen, F. W. A. van Oost, B. Koopmans, and M. Wohlgenannt, Phys. Rev. Lett. 99, 216801 (2007).
http://dx.doi.org/10.1103/PhysRevLett.99.216801
9.
9.W. Wagemans, F. L. Bloom, P. A. Bobbert, M. Wohlgenannt, and B. Koopmans, J. Appl. Phys. 103, 07F303 (2008).
http://dx.doi.org/10.1063/1.2828706
10.
10.D. Mühlbacher, H. Neugebauer, A. Cravino, N. S. Sariciftci, J. K. J. van Duren, A. Dhanabalen, P. A. van Hal, R. A. J. Janssen, and J. C. Hummelen, Mol. Cryst. Liq. Cryst. 385, 85 (2002).
11.
11.A. Kahn, N. Koch, and W. Gao, J. Polym. Sci., Part B: Polym. Phys. 41, 2529 (2003).
http://dx.doi.org/10.1002/polb.10642
12.
12.S. L. M. van Mensfoort and R. Coehoorn, Phys. Rev. Lett. 100, 086802 (2008).
http://dx.doi.org/10.1103/PhysRevLett.100.086802
13.
13.H. H. P. Gommans, M. Kemerink, and R. A. J. Janssen, Phys. Rev. B 72, 235204 (2005).
http://dx.doi.org/10.1103/PhysRevB.72.235204
14.
14.T. D. Nguyen, J. Rybicki, Y. Sheng, and M. Wohlgenannt, Phys. Rev. B 77, 035210 (2008).
http://dx.doi.org/10.1103/PhysRevB.77.035210
15.
15.M. Reufer, M. J. Walter, P. G. Lagoudakis, A. B. Hummel, J. S. Kolb, H. G. Roskos, U. Scherf, and J. M. Lupton, Nature Mater. 4, 340 (2005).
http://dx.doi.org/10.1038/nmat1354
16.
16.T. D. Nguyen, Y. Sheng, J. Rybicki, and M. Wohlgenannt, Phys. Rev. B 77, 235209 (2008).
http://dx.doi.org/10.1103/PhysRevB.77.235209
17.
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Image of FIG. 1.

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FIG. 1.

MC vs for an ITO/PEDOT:PSS/MDMO-PPV (80 nm)/Ca/Al sample at several different voltages. The open symbols represent the measured data and the solid lines are fits to Eq. (1).

Image of FIG. 2.

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FIG. 2.

vs voltage obtained from fitting Eq. (1) to the data in Fig. 1. The vertical dotted line represents the transition voltage from negative to positive MC.

Image of FIG. 3.

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FIG. 3.

(a) (black), EL efficiency (red) and (b) low frequency (220 Hz) differential capacitance vs . The dashed green line in (a) represents a power law fit to the vs in region II. The vertical dotted lines indicate the boundaries between regions I, II, and III.

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/content/aip/journal/apl/93/26/10.1063/1.3059555
2008-12-29
2014-04-17

Abstract

In this work we examine the transition between positive and negative organic magnetoresistance in poly[2-methoxy-5-(, -dimethyloctyloxy)--phenylenevinylene] in order to understand how different regimes of charge transport affect the organic magnetoresistance effect. To characterize the charge transport in these devices we measured the current, low frequency differential capacitance, and electroluminescence efficiency as a function of voltage. These measurements show that the sign change of the magnetoresistance corresponds with a change from a unipolar diffusive transport below the built in voltage to a regime of bipolar drift transport above .

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Scitation: Correspondence of the sign change in organic magnetoresistance with the onset of bipolar charge transport
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/26/10.1063/1.3059555
10.1063/1.3059555
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