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首页> 外文会议>Photovoltaic Specialists Conference (PVSC), 2011 37th IEEE >Comparison of charge carrier mobility between homeotropic and planar alignments in a perylene-derivative columnar liquid crystal
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Comparison of charge carrier mobility between homeotropic and planar alignments in a perylene-derivative columnar liquid crystal

机译：per衍生物柱状液晶的垂直与平面排列之间的载流子迁移率比较

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摘要

A new perylene-derivative exhibiting a room temperature columnar liquid crystalline phase has been characterized from the viewpoint of the mobility of charge carriers in the directions parallel and perpendicular to the columns axis, corresponding to homeotropic and planar alignments respectively. The time of flight (TOF) transients for holes were recorded at ambient temperature and over a range of electric fields (8 × 103-1.2 × 105 V/cm). The measured hole mobility is in the order of 10-4 cm2V-1s-1 for planar alignment. The mobility value is up to 10 times higher in the case of homeotropic alignment which is an indication of a better electrical conductivity in the direction parallel to columns compared to the perpendicular direction. This one-dimensional semiconducting property makes CLCs interesting for semiconductor devices.
机译：从载流子在平行于和垂直于列轴的方向上的迁移率的观点，已经表征了表现出室温柱状液晶相的新的per衍生物，分别对应于垂直排列和平面排列。在环境温度和一定范围的电场（8×103-1.2×105 V / cm）下记录孔的飞行时间（TOF）瞬变。对于平面对准，测得的空穴迁移率约为10-4 cm2V-1s-1。在垂直排列的情况下，迁移率值高达10倍，这表明与垂直方向相比，在平行于列的方向上具有更好的电导率。这种一维半导体特性使CLC对于半导体器件很有趣。

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