中国物理B ›› 2010, Vol. 19 ›› Issue (1): 18103-018103.doi: 10.1088/1674-1056/19/1/018103
• 8000 CROSSDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇 下一篇
田雪雁, 徐征, 赵谡玲, 张福俊, 袁广才, 李婧, 孙钦军, 王赟, 徐叙瑢
Tian Xue-Yan(田雪雁), Xu Zheng(徐征)†, Zhao Su-Ling(赵谡玲), Zhang Fu-Jun(张福俊), Yuan Guang-Cai(袁广才),Li Jing(李婧), Sun Qin-Jun(孙钦军),Wang Yun(王赟), and Xu Xu-Rong(徐叙瑢)
摘要: With the aim of understanding the relationships between organic small molecule field-effect transistors (FETs) and organic conjugated polymer FETs, we investigate the thickness dependence of surface morphology and charge carrier mobility in pentacene and regioregular poly (3-hexylthiophene) (RR-P3HT) field-effect transistors. On the basis of the results of surface morphologies and electrical properties, we presume that the charge carrier mobility is largely related to the morphology of the organic active layer. We observe that the change trends of the surface morphologies (average size and average roughness) of pentacene and RR-P3HT thin films are mutually opposite, as the thickness of the organic layer increases. Further, we demonstrate that the change trends of the field-effect mobilities of pentacene and RR-P3HT FETs are also opposite to each other, as the thickness of the organic layer increases within its limit.
中图分类号: (Field effect devices)