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arXiv 0810.5460cond-mat.mtrl-sci
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聚(3-己基噻吩)/甲烷富勒烯共混体系的双极电荷输运:比例依赖性研究

Bipolar Charge Transport in Poly(3-hexyl thiophene)/Methanofullerene Blends: A Ratio Dependent Study

A. Baumann, J. Lorrmann, C. Deibel, V. Dyakonov

摘要:

通过时间分辨光电导实验研究了聚(3-己基噻吩-2,5-二基)(P3 HT):[6,6]-苯基-C61丁酸甲酯(PCBM)共混物中载流子迁移率随给体:受体比的变化.我们观察到一个双极传输在所有研究的样品范围从纯聚合物到聚合物:富勒烯与90%PCBM含量。对于比例P3 HT:PCBM 1:4和1:1,我们观察到电子电流瞬变中的两个渡越时间,以及P3 HT:PCBM 1:2的空穴双瞬变。我们发现,在混合物中PCBM浓度为90%时,空穴和电子的迁移率约为10^(-3)- 10^(-2)cm ^2/Vs。

英文摘要:

We investigated the charge carrier mobility in pristine poly(3-hexyl thiophene-2,5-diyl) (P3HT):[6,6]-phenyl-C61 butyric acid methyl ester (PCBM) blend devices by applying the time resolved photoconductivity experiment in dependence on the donor:acceptor ratio. We observe a bipolar transport in all studied samples ranging from pure polymer to polymer:fullerene with 90% PCBM content. For the ratios P3HT:PCBM 1:4 and 1:1 we observe two transit times in the electron current transients, as well as hole double transients for P3HT:PCBM 1:2. We find high hole and electron mobilities in the order of 10^(-3) - 10^(-2) cm^2/Vs for a concentration of 90% PCBM in the blend.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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