Current–voltage characteristics of a tetracene crystal:Space charge or injection limited conductivity?
Current–voltage characteristics of a tetracene crystal:Space charge or injection limited conductivity?
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并四苯晶体的电流-电压特性：空间电荷或注入限制电导率？
DOI：
10.1063/1.1774274
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
P. Heremans
中科院分区：
文献类型：
--
作者：
J. Reynaert;V. Arkhipov;G. Borghs;P. Heremans
我们表明，在夹在两个金电极之间的并四苯晶体上测量的电流-电压特性与跨金属-有机界面的掺杂剂辅助电荷注入的概念在定量上一致。这个概念解释了最近通过空间电荷有限电流测量在明显相同的并四苯晶体中发现的载流子迁移率的大范围[de Boer et al., J. Appl.物理。 95, 1196 (2004)]以及这些数据与飞行时间实验中测量的迁移率之间的差异。
We show that current–voltage characteristics, measured on a tetracene crystal sandwiched between two gold electrodes, are in quantitative agreement with the concept of dopant-assisted charge injection across a metal–organic interface. This notion explains the wild range of carrier mobilities recently found by space-charge limited current measurements in apparently identical tetracene crystals [de Boer et al., J. Appl. Phys. 95, 1196 (2004)] and the difference between these data and the mobility measured in the time-of-flight experiments.