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Carrier Transport in Titanyl Phthalocyanine Pigment Dispersed in Binder Polymer

机译:分散在粘合剂聚合物中的二氧化钛酞菁颜料中的载流子传输

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摘要

The carrier transport mechanism of a single-layered photorecep-tor containing titanyl phthalocyanine pigment dispersed in an insulating binder polymer was investigated by the measurement of hole drift mobility, using the conventional time-of-flight technique. The transient waveform of the photocurrent exhibited a plateau and kink at higher electric field than 2 x 10~5 V/cm. The drift mobility for a titanyl phthalocyanine-polycarbonate polymer layer varied from 1.2 x 10~(-6) to 7 x 10~(-5) cm~2 V~(-1) s~(-1) as the concentrations changed from 20 to 50 wt% of pigment. The increase of dark conductivity and drift mobility in the range of pigment concentration higher than 20 wt% of pigments depended on the formation of pigment particle chains in the photoconduc-tive layer.
机译:使用常规的飞行时间技术,通过测量空穴漂移迁移率,研究了分散在绝缘粘合剂聚合物中的含钛氧基酞菁颜料的单层感光体的载流子传输机理。在高于2 x 10〜5 V / cm的电场下,光电流的瞬态波形表现出平稳和扭结。随着浓度的变化,钛氧基酞菁-聚碳酸酯聚合物层的漂移迁移率从1.2 x 10〜(-6)到7 x 10〜(-5)cm〜2 V〜(-1)s〜(-1)变化。颜料的20至50 wt%。在高于颜料的20wt%的颜料浓度范围内,暗电导率和漂移迁移率的增加取决于在光电导层中颜料颗粒链的形成。

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