期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 14, 页码 11818-11825出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b01113
关键词
thieno[3,2-b]pyrrole; benzothiadiazole; donor-acceptor small molecules; banana-shape; curvature; organic field effect transistors
资金
- NSF [DMR-1505950]
- Welch Foundation [AT-1740]
We report two banana-shaped organic semi-conducting small molecules containing the relatively unexplored thieno[3,2-b]pyrrole with thiophene and furan flanked benzothiadiazole. Theoretical insights gained by DFT calculations, supported by single crystal structures show that furan flanked benzothiadiazole-thieno[3,2-b]pyrrole small molecule has a higher curvature compared to the thiophene flanked small molecule due to the shorter carbon-oxygen bond in furan. Despite similar optical and electrochemical properties, thiophene flanked small molecule shows average hole mobility up to 8 X 10(-2) cm(2) V-1 s(-1) however furan flanked small molecule performs poorly in thin film transistor devices (mu(h) approximate to 5 x 10(-6) cm(2) V-1 s(-1)). The drastic difference in hole mobilities was due to the annealing-induced crystallinity which was demonstrated by the out-of-plane grazing incidence X-ray diffraction and surface morphology studies by tapping mode atomic force microscopy analysis.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据