The diffusion coefficient (D) of charge carriers in pentacene has been determined independently using current–voltage and capacitance–frequency characteristics of asymmetric metal/pentacene/metal structures. The values of D measured using these two methods are found to be in excellent agreement. D has been estimated using first principles calculations and compared with experimental values. The applicability of the Einstein relation has been examined in organic semiconductors.

中文翻译：

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并五苯中载流子的扩散

使用不对称金属/并五苯/金属结构的电流-电压和电容-频率特性独立确定了并五苯中载流子的扩散系数（D）。发现使用这两种方法测得的D值非常吻合。D是使用第一性原理计算得出的，并与实验值进行了比较。爱因斯坦关系的适用性已经在有机半导体中进行了研究。