Iijima Kodai, Le Gal Yann, Lorcy Dominique, Mori Takehiko
Department of Materials Science and Engineering, Tokyo Institute of Technology O-okayama 2-12-1, Meguro-ku 152-8552 Japan
Univ. Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226 F-35000 Rennes France.
RSC Adv. 2018 May 21;8(33):18400-18405. doi: 10.1039/c8ra03362e. eCollection 2018 May 17.
By introducing bulky 2-phenylethyl groups into sulfur-rich electron acceptors, 5,5'-bithiazolidinylidene-2,2'-dione-4,4'-dithione and 5,5'-bithiazolidinylidene-2,4,2',4'-tetrathione, electron transport with the mobility of 0.27 cm V s with ambient and long-term stability is achieved in thin-film transistors. Bulky groups destroy the intermolecular S-S network, but the long-term transistor stability is maintained. Here, benzyl groups realize one-dimensional stacking structures, whereas 2-phenylethyl groups lead to herringbone structures.
通过将庞大的2-苯乙基引入富含硫的电子受体5,5'-双噻唑烷亚基-2,2'-二酮-4,4'-二硫酮和5,5'-双噻唑烷亚基-2,4,2',4'-四硫酮中，在薄膜晶体管中实现了迁移率为0.27 cm² V⁻¹ s⁻¹的具有环境稳定性和长期稳定性的电子传输。庞大的基团破坏了分子间的S-S网络，但晶体管的长期稳定性得以保持。在这里，苄基实现了一维堆积结构，而2-苯乙基则导致了人字形结构。
