Anisotropic ambipolar carrier transport and high bipolar mobilities up to 0.1 cm2 V-1 s-1 in aligned liquid-crystal glass films of oligofluorene

Li Yin Chen, Tung Huei Ke, Chung Chih Wu*, Teng Chih Chao, Ken Tsung Wong, Ching Chao Chang

*Corresponding author for this work

研究成果: Article

14 引文 斯高帕斯(Scopus)

摘要

By taking advantage of the rich morphological characteristics of oligofluorenes and the mesophase-mediated molecular assembly/alignment, we studied carrier-transport properties of solid-state oligofluorenes in different morphologies and orientations. Compared to the amorphous phase, the uniaxially aligned liquid-crystal glass of oligofluorenes could give up to 100-fold enhancement in bipolar carrier-transport mobilities, bringing both hole and electron mobilities to nearly 0.1 cm2 V s. Furthermore, significant anisotropic bipolar transport, i.e., preferential bipolar carrier transport along the oligomer chain direction is observed.

原文English
文章編號163509
期刊Applied Physics Letters
91
發行號16
DOIs
出版狀態Published - 2007

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