The carrier transport characteristics of 1,4,8,11,15,18,22,25-octaalkylphthalocyanine (CnPcH₂) thin films have been investigated by utilizing metal–insulator–semiconductor charge extraction by the linearly increasing voltage method. As the alkyl chain length of CnPcH₂ increased from n=5 to 8, the estimated hole mobility decreased by almost one and a half order of magnitude in the range of 10⁻⁴ to 10⁻⁵ cm² V⁻¹s⁻¹. Furthermore, the relationship between the alkyl chain length and site energy distribution in solution-processed phthalocyanine thin films was investigated. The temperature and field dependences of the hole mobility were analyzed using the Gaussian disorder model, and the effect of the alkyl chain length was discussed by taking the enlargement of the energetic width of the hopping site and the distribution of the hopping distance into consideration.

1,4,8,11,15,18,22,25-八烷基酞菁（C n PcH ₂）薄膜的载流子传输特性已通过线性增加电压法利用金属-绝缘体-半导体电荷提取进行了研究。随着C n PcH ₂的烷基链长度从n = 5 增加到8，估计的空穴迁移率在10 ^-4到10 ^-5 cm ² V ^-1 s ^-范围内降低了几乎一个半数量级。¹. 此外，研究了溶液处理的酞菁薄膜中烷基链长度与位点能量分布之间的关系。使用高斯无序模型分析空穴迁移率的温度和场依赖性，并通过考虑跳跃位点能量宽度的扩大和跳跃距离分布讨论烷基链长度的影响。