College of Chemistry and Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Xiangtan 411105, Hunan Province, PR China.
Macromol Rapid Commun. 2012 Apr 13;33(6-7):603-9. doi: 10.1002/marc.201200018. Epub 2012 Mar 28.
Two solution-processable platinum-acetylide polymers functionalized with the electron-deficient thiazolothiazole spacer are synthesized and show absorption features spanning from 320 to 600 nm and optical bandgaps of 2.15 and 2.05 eV. The spin-coated polymer thin films of both materials exhibit p-channel field-effect charge transport characteristics with impressive peak field-effect charge-carrier mobilities of (2.1-2.8) × 10(-2) cm(2) V(-1) s(-1) and on/off ratios of (0.8-1.0) × 10(5) for the holes. The high hole mobility value reported for one of the polymers is among the highest reported for metallopolyynes to date. It is also shown that the hole mobility can be notably increased by extending the conjugation length of the chain from the monothienyl to the bithienyl segment on each side of the thiazolothiazole ring.
两种可溶液加工的含缺电子噻唑噻唑间隔基的铂炔聚合物被合成，显示出从 320 到 600nm 的吸收特征和 2.15 和 2.05eV 的光学能隙。这两种材料的旋涂聚合物薄膜都表现出 p 型通道场效应电荷输运特性，空穴的峰值场效应电荷载流子迁移率高达（2.1-2.8）×10(-2)cm(2)V(-1)s(-1)，开关比为（0.8-1.0）×10(5)。其中一种聚合物报道的高空穴迁移率在迄今报道的金属聚炔中是最高的之一。还表明，通过将噻唑噻唑环两侧的噻吩基链的共轭长度从单噻吩基延伸到双噻吩基，可以显著提高空穴迁移率。
