Highly planar thieno[3,2-b]thiophene-diketopyrrolopyrrole-contai ning polymers for organic field-effect transistors

Two novel thieno[3,2-b]thiophene-flanked diketopyrrolopyrrole (TTDPP)-based copolymers PTTDPPTVT and PTTDPPSVS were designed and synthesized in order to investigate their optical, electrochemical, and morphological properties as well as device performance in organic field-effect transistors. By intr...

Full description

Saved in:
Bibliographic Details
Published in:RSC advances 2016-04, Vol.6 (42), p.35394-35401
Main Authors: Liu, Xiaotong, Huang, Jianyao, Xu, Jie, Gao, Dong, Zhang, Weifeng, Shi, Keli, Yu, Gui
Format: Article
Language:English
Subjects:
Construction materials
Copolymers
Devices
Field effect transistors
Hole mobility
Optical properties
Polymers
Semiconductor devices
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Two novel thieno[3,2-b]thiophene-flanked diketopyrrolopyrrole (TTDPP)-based copolymers PTTDPPTVT and PTTDPPSVS were designed and synthesized in order to investigate their optical, electrochemical, and morphological properties as well as device performance in organic field-effect transistors. By introducing large TTDPP units and highly pi -extended moieties di(thiophen-2-yl)ethene or di(selenophen-2-yl)ethene in the conjugated backbone, the copolymers with extremely planar conjugated degree and strongly intermolecular interactions were achieved. The devices based on PTTDPPTVT and PTTDPPSVS showed hole mobilities of 0.437 and 0.067 cm super(2) V super(-1) s super(-1), respectively. These results demonstrated that the TTDPP unit is a promising electron deficient building block for constructing excellent performance semiconducting materials.
ISSN:2046-2069
DOI:10.1039/c6ra01031h