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Charge carrier mobility in substituted polythiophene-based diodes
- Roman, L.S. (author)
-
- Inganäs, Olle (author)
- Linköpings universitet,Tekniska högskolan,Biomolekylär och Organisk Elektronik
- (creator_code:org_t)
- 2001
- 2001
- English.
- In: Synthetic metals. - 0379-6779 .- 1879-3290. ; 125:3, s. 419-422
- Journal article (peer-reviewed)
Abstract
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- We have investigated the transport properties of the semiconducting polymer poly(3-(2'-methoxy-5'-octylphenyl)thiophene) (POMeOPT). We have measured the current-voltage (C-V) characteristics of single polymer layer devices in two regimes contact limited current and bulk-limited current. The passage from one regime to the other was done upon insertion of a conducting polymer poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate) (PEDOT-PSS) between the metallic electrode and the semiconducting polymer. With PEDOT-PSS as electrode, the polymer gave space-charge limited current (SCLC) with the mobility dependent on electric field. Fitting the data, we were able to obtain important parameters, such as the zero-field mobility and the characteristic field. We have compared our results with the well-studied polymer poly(2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylene vinylene) (MEH-PPV) in similar experiments earlier reported. © 2001 Elsevier Science B.V. All rights reserved.
Keyword
- MEH-PPV-based diodes
- Polythiophene-based diodes
- Semiconducting polymer
- TECHNOLOGY
- TEKNIKVETENSKAP
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- art (subject category)
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