Availability of Liquid Crystalline Molecules for Polycrystalline Organic Semiconductor Thin Films
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概要
- 論文の詳細を見る
We have characterized the crystallographic features and charge carrier transport properties of polycrystalline films of both triphenylene and terthiophene derivatives, which are representative materials of discotic (disc-like) and calamitic (rod-like) liquid crystals, respectively. Because of the enhanced anisotropy with the hydrocarbon chains in their molecular structure and the pre-ordered molecular alignment in the mesophase, polycrystalline films of liquid crystals, which exhibit a particular texture indicating that the molecular alignment in the liquid-crystalline phase is well preserved, suppresses the formation of grain boundaries across conduction channels and exhibit clear hole transport even in several-μm-thick films. The present results indicate that liquid-crystalline molecules are good candidates for preparing quality organic polycrystalline semiconductor thin films for optoelectronic applications.
- Japan Society of Applied Physicsの論文
- 2006-09-25
著者
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Hanna Jun-ichi
Imaging Science & Engineering Laboratory Tokyo Institute Of Technology
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Hanna Jun-ichi
Imaging Science and Engineering Laboratory, Tokyo Institute of Technology, J1-2, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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Iino Hiroaki
Imaging Science and Engineering Laboratory, Tokyo Institute of Technology, J1-2, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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