Time-of-flight measurements and vertical transport in a high electron-mobility polymer
- 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 (TM) 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.
| Verfasserangaben: | James C. Blakesley, Marcel SchubertORCiD, Robert Steyrleuthner, Zhihua Chen, Antonio Facchetti, Dieter NeherORCiDGND |
|---|---|
| DOI: | https://doi.org/10.1063/1.3657827 |
| ISSN: | 0003-6951 |
| Titel des übergeordneten Werks (Englisch): | Applied physics letters |
| Verlag: | American Institute of Physics |
| Verlagsort: | Melville |
| Publikationstyp: | Wissenschaftlicher Artikel |
| Sprache: | Englisch |
| Jahr der Erstveröffentlichung: | 2011 |
| Erscheinungsjahr: | 2011 |
| Datum der Freischaltung: | 26.03.2017 |
| Band: | 99 |
| Ausgabe: | 18 |
| Seitenanzahl: | 3 |
| Fördernde Institution: | German Federal Ministry of Science and Education (BMBF) [FKZ 03X3525D]; German Research Foundation (DFG) [SPP 1355] |
| Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| Peer Review: | Referiert |
