标题：Comparable charge transport property based on S center dot center dot center dot S interactions with that of pi-pi stacking in a bis-fused tetrathiafulvalene compound
作者：Zhou, Ke; Chen, Hongfeng; Dong, Huanli; Fang, Qi; Hu, Wenping
作者机构：[Zhou Ke] Institute of Chemistry, Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, B 更多
会议名称：International Conference on the Science and Technology of Synthetic Metals (ICSM)
会议日期：JUN 26-JUL 01, 2016
关键词：bis-fused TTF derivative; single crystal; electrical conductivity; hole; carrier mobility
摘要：Compact molecular packing with short pi-pi stacking and large pi-overlap in organic semiconductors is desirable for efficient charge transport and high carrier mobility. Thus charge transport anisotropy along different directions is commonly observed in organic semiconductors. Interestingly, in this article, we found that comparable charge transport property were achieved based on the single crystals of a bis-fused tetrathiafulvalene derivative (EM-TTP) compound along two interaction directions, that is, the multiple strong S center dot center dot center dot S intermolecular interactions and the pi-pi stacking direction, with the measured electrical conductivity and hole mobility of 0.4 S cm(-1), 0.94 cm(2) V-1 s(-1) and 0.2 S cm-1, 0.65 cm(2) V-1 s(-1), respectively. This finding provides us a new molecular design concept for developing novel organic semiconductors with isotropic charge transport property through the synergistic effect of multiple intermolecular interactions (such as S center dot center dot center dot S interactions) and pi-pi stacking.