聚(n -乙烯基咔唑)薄膜的稳态和瞬态光导

Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1987 Pub Date : 1987-10-01 DOI:10.1109/CEIDP.1987.7736563

J. Hu, K. Kao

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引用次数: 0

摘要

本文测量了在非均匀矩形光脉冲照射下聚n-乙烯基咔唑(PVK)薄膜的稳态和瞬态光导电流与外加电场和光子能量的关系。结果表明，在体中光生或从金属电极光注入的载流子以空穴为主，输运过程为热激活跳变过程。光导电流在可见光和红外区域的场依赖性归因于场辅助光注入孔从金属电极在类似于弗兰兹-凯尔迪什效应的方式的隧道。

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Steady state and transient photoconduction in poly (N-vinylcarbazole) films

Steady state and transient photoconduction currents under non-uniform illumination by a series of rectangular light pulses have been measured for poly(N-vinylcarbazole) (PVK) films as functions of applied electric field and photon energy. The results show that the carriers photogenerated in the bulk or photo-injected from the metallic electrode are mainly holes, and that the transport is a thermally activated hopping process. The field dependence of the photoconduction current in the visible and infrared regions is attributed to field-assisted photo-injection of holes into the bulk from the metallic electrode by tunneling in a manner similar to the Franz-Keldysh effect.

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Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1987

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