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Time-of-flight measurements and vertical transport in a high electron-mobility polymer.
- Source :
-
Applied Physics Letters . 10/31/2011, Vol. 99 Issue 18, p183310. 3p. 3 Graphs. - Publication Year :
- 2011
-
Abstract
- We investigate charge transport in a high-electron mobility polymer, poly(N,N-bis 2-octyldodecyl-naphthalene-1,4,5,8-bis dicarboximide-2,6-diyl-alt-5,5-2,2-bithiophene) [P(NDI2OD-T2), Polyera ActivInk™ N2200]. Time-of-flight measurements reveal electron mobilities approaching those measured in field-effect transistors, the highest ever recorded in a conjugated polymer using this technique. The modest temperature dependence and weak dispersion of the transients indicate low energetic disorder in this material. Steady-state electron-only current measurements reveal a barrier to injection of about 300 meV. We propose that this barrier is located within the P(NDI2OD-T2) film and arises from molecular orientation effects. [ABSTRACT FROM AUTHOR]
- Subjects :
- *POLYMERS
*ELECTRON mobility
*MACROMOLECULES
*MOLECULES
*PHYSICS
Subjects
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 99
- Issue :
- 18
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 67044157
- Full Text :
- https://doi.org/10.1063/1.3657827