载流子
载流子密度
放松(心理学)
电荷(物理)
电荷密度
电子迁移率
材料科学
瞬态(计算机编程)
电流密度
萃取(化学)
化学物理
化学
分子物理学
分析化学(期刊)
光电子学
物理
兴奋剂
色谱法
社会心理学
量子力学
操作系统
计算机科学
心理学
作者
Ronald Österbacka,Almantas Pivrikas,G. Juška,K. Genevičius,K. Arlauskas,H. Stubb
标识
DOI:10.1016/j.cap.2004.01.013
摘要
We have measured mobility and density relaxation of photogenerated charge carriers in regiorandom poly(3-hexylthiophene) using novel extraction current transient techniques. We show how to obtain time-dependent mobility μ and charge carrier density p using independent measurements. The results show μ∝t−0.42 independent on charge carrier density. The carrier density follows a bimolecular decay with the bimolecular recombination coefficient β=7.2×10−13 cm3/s. The measured time-of-flight current follows closely the estimated time decay as j(t)∝p(t)μ(t), with deviation arising from extraction of the generated charge carriers.
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