前往化源商城

Nature Communications 2014-01-01

Freezing-in orientational disorder induces crossover from thermally-activated to temperature-independent transport in organic semiconductors.

K P Goetz, A Fonari, D Vermeulen, P Hu, H Jiang, P J Diemer, J W Ward, M E Payne, C S Day, C Kloc, V Coropceanu, L E McNeil, O D Jurchescu

文献索引:Nat. Commun. 5 , 5642, (2014)

全文:HTML全文

摘要

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.

相关化合物

结构式 名称/CAS号 全部文献
异丙醇 结构式 异丙醇
CAS:67-63-0
2,3,5,6-四氟-7,7',8,8'-四氰二甲基对苯醌 结构式 2,3,5,6-四氟-7,7',8,8'-四氰二甲基对苯醌
CAS:29261-33-4
反式-1,2二苯乙烯 结构式 反式-1,2二苯乙烯
CAS:103-30-0