Two structurally related discogens containing either pyrene (1a) or carbazole (2a) were investigated by thermal, XRD, spectroscopic, and time-of-flight (TOF) methods. Experiments demonstrated for 1a a narrow range Colh phase, which easily forms a glass state at ambient temperature. TOF measurements showed an ambipolar charge transport for 1a with the mobilities on the order of 10−3 cm2 V−1 s−1. The carbazole 2a has two enantiotropic phases (Crcol and Colh) and behaves as a p-type semiconductor. The activation energy for positive charge mobility in 1a was found to be 0.10 ± 0.01 eV.
我们采用热学、X 射线衍射、光谱和飞行时间 (TOF) 方法研究了两种结构相关的含
芘(1a)或
咔唑(2a)的馁剂。实验表明,1a 具有窄范围的 Colh 相,在环境温度下很容易形成
玻璃态。TOF 测量结果表明,1a 的电荷迁移率为 10-3 cm2 V-1 s-1 量级。
咔唑 2a 有两个对映相(Crcol 和 Colh),表现为 p 型半导体。研究发现,1a 中正电荷迁移的活化能为 0.10 ± 0.01 eV。