双极扩散
电子迁移率
光电流
材料科学
电场
电子
电子传输链
光电子学
化学物理
大气温度范围
纳米技术
化学
物理
热力学
量子力学
生物化学
作者
Stelios A. Choulis,Yongku Kim,Jenny Nelson,Donal D. C. Bradley,Melanie Giles,Maxim Shkunov,Iain McCulloch
摘要
The carrier transport of carefully purified regioregular poly(3-hexylthiophene) films has been studied using time-of-flight photocurrent measurements. We find balanced ambipolar transport with a room-temperature mobility for holes of 3×10−4cm2V−1s−1 and for electrons of 1.5×10−4cm2V−1s−1 at electric fields ⩾105V∕cm. The transport is relatively field independent and weakly temperature dependent, pointing to a high degree of chemical regioregularity and purity. These factors make poly(3-hexylthiophene) attractive for use in a range of electronic applications.
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