Thienoisoindigo-Based Polymers Bearing Diethynylbenzene and Diethynylanthracene Units for Thin Film Transistors and Solar Cells

Pei Han; Xueqin Zhang; Xiaohui Gong; Hui Wen; Yidong Zhang; Baoping Lin; Lei Zhang; Shanghui Ye; Ying Sun; Hong Yang

doi:10.1166/jnn.2018.15405

Thienoisoindigo-Based Polymers Bearing Diethynylbenzene and Diethynylanthracene Units for Thin Film Transistors and Solar Cells

J Nanosci Nanotechnol. 2018 Aug 1;18(8):5534-5541. doi: 10.1166/jnn.2018.15405.

Authors

Pei Han¹, Xueqin Zhang¹, Xiaohui Gong¹, Hui Wen¹, Yidong Zhang¹, Baoping Lin¹, Lei Zhang², Shanghui Ye², Ying Sun¹, Hong Yang¹

Affiliations

¹ School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China.
² Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, P. R. China.

PMID: 29458607
DOI: 10.1166/jnn.2018.15405

Abstract

Two thienoisoindigo-based donor-acceptor conjugated polymers were synthesized via Sonogashira coupling reaction with 1,4-diethynylbenzene (P(TII-BEN)) and 9,10-diethynylanthracene (P(TII-ANT)) as donor units, respectively. The optical and electrochemical properties of the polymers were also investigated. The highest hole mobility were 4.38 × 10-3 cm2 V-1 s-1 for P(TII-BEN) and 9.40 × 10-3 cm2 V-1 s-1 for P(TII-ANT) in bottom-gated/top-contact field-effect transistors. The bulk heterojunction organic solar cells consisting of the polymers and PC71BM yielded power conversion efficiencies of 1.59% for P(TII-BEN) and 1.90% for P(TII-ANT). Moreover, the microstructures were investigated by X-ray diffraction and atomic force microscopy.