| Autor: |
Ward, J. W., McNeil, L. E., Jiang, H., Payne, M. E., Hu, P., Vermeulen, D., Goetz, K. P., Kloc, C., Fonari, A., Coropceanu, V., Jurchescu, O. D., Diemer, P. J., Day, C. S. |
| Jazyk: |
angličtina |
| Rok vydání: |
2014 |
| DOI: |
10.17615/yhn0-5917 |
| Popis: |
The crystalline structure of organic materials dictates their physical properties, but while significant research effort is geared towards understanding structure-property relationships in such materials, the details remain unclear. Many organic crystals exhibit transitions in their electrical properties as a function of temperature. One example is the 1:1 charge-transfer complex trans--stilbene-2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane. Here we show that the mobility and resistivity of this material undergo a transition from being thermally activated at temperatures above 235 K to being temperature independent at low temperatures. On the basis of our experimental and theoretical results, we attribute this behaviour to the presence of a glass-like transition and the accompanied freezing-in of orientational disorder of the stilbene molecule. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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