title: Platinum-based poly(aryleneethynylene) polymers containing thiazolothiazole group with high hole mobilities for field-effect transistor applications.
abstract: 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.
authors.affiliation: College of Chemistry and Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Xiangtan 411105, Hunan Province, PR China.
authors.forename: Lei
authors.initials: L
authors.lastname: Yan
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhao
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Wang
authors.forename: Xing-Zhu
authors.initials: XZ
authors.lastname: Wang
authors.forename: Wai-Yeung
authors.initials: WY
authors.lastname: Wong
authors.forename: Yunqi
authors.initials: Y
authors.lastname: Liu
authors.forename: Weiping
authors.initials: W
authors.lastname: Wu
authors.forename: Qingzhen
authors.initials: Q
authors.lastname: Xiao
authors.forename: Guo
authors.initials: G
authors.lastname: Wang
authors.forename: Xuan
authors.initials: X
authors.lastname: Zhou
authors.forename: Wei
authors.initials: W
authors.lastname: Zeng
authors.forename: Chengxi
authors.initials: C
authors.lastname: Li
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Wang
authors.forename: Hongbin
authors.initials: H
authors.lastname: Wu
mesh_terms: D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D015394:Molecular Structure; D010984:Platinum / Q000737:chemistry*; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D013844:Thiazoles / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D011108:Polymers; D013844:Thiazoles; D010984:Platinum