作者:Soundaram Jeevarathinam Ananthakrishnan、Balasubramaniyan Sambath Kumar、Narayanasastri Somanathan、Asit Baran Mandal
DOI:10.1039/c3ra00029j
日期:——
Supramolecular assembly of side chain-conjugated polythiophenes were brought about by a interplay of dipole–dipole interactions and hydrogen bonding. Copolymers of (E)-3,5-dimethyl-4-(2-(thiophene-3-yl)vinyl) isoxazole (DTVI) and (E)-2-(2-(thiophen-3-yl) vinyl)-1H-benzo[d] imidazole (TVB) were synthesized and their ability to form self assemblies in solution as well as in thin film were explored at device conditions over ITO substrates. The twisted hierarchical assembly of polyTVB was found to improve the charge carrier mobility and is explained by a possible mechanism in which, an innate hierarchical self assembly through J-aggregates is formed in thin film prepared under device conditions. The copolymers of DTVI and TVB were studied for change in morphology using AFM, and GIXRD.
侧链共轭聚噻吩的超分子组装是通过偶极-偶极相互作用和氢键的相互作用实现的。 (E)-3,5-二甲基-4-(2-(噻吩-3-基)乙烯基)异恶唑(DTVI)和(E)-2-(2-(噻吩-3-基)乙烯基)-的共聚物合成了 1H-苯并[d]咪唑 (TVB),并在 ITO 基板上的器件条件下探索了它们在溶液中以及薄膜中形成自组装的能力。人们发现,polyTVB 的扭曲分级组装可以提高载流子迁移率,并通过一种可能的机制进行解释,其中在器件条件下制备的薄膜中形成通过 J 聚集体的固有分级自组装。使用 AFM 和 GIXRD 研究了 DTVI 和 TVB 共聚物的形态变化。