Journal
CHEMISTRY OF MATERIALS
Volume 31, Issue 6, Pages 2027-2035Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.chemmater.8b05054
Keywords
-
Funding
- Open Foundation of Key Laboratory of Advanced Functional Materials and Devices of Anhui Province and Double First Class Enhancing Independent Innovation and Social Service Capabilities of Hefei University of Technology [4500-411104/011]
- National Natural Science Foundation of China (NSFC) [51573001, 51573036, 51703047]
- Fundamental Research Funds for the Central Universities [JZ2018HGPB0276]
- Distinguished Youth Foundation of Anhui Province [1808085J03]
- 111 Project [B12019]
Ask authors/readers for more resources
Although various donor-acceptor (D-A) small molecules with high power conversion efficiency have been reported, D-A small molecules with high field-effect mobility are still rare. In this work, two new A-D-A small molecules with a rigid indacenodithieno [3,2-b]thiophene (IDTT) moiety as the central core and both ends capped with strong electron-withdrawing indole-2,3-dione(IDD) and N-substituted pyrrolo[2,3-b]pyridine-2,3-dione (IDD-N) were synthesized and characterized for applications in solution-processable organic field-effect transistors (OFETs). A N atom was introduced to the IDD units to enhance the planarity and structural ordering by noncovalent interactions, leading to a dramatic effect on the small molecule. The unsubstituted small molecule (IDTT-IDD) did not show any field-effect performance, whereas an encouraging hole mobility of 7.7 cm(2) V-1 s(-1) with an average mobility of 6.1 cm(2) V-1 s(-1) was obtained for solution-processable OFETs based on the N-substituted one (IDTT-IDD-N). This work provided a simple and effective molecular strategy for the design of D-A small molecules for high-performance solution-processable OFETs.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available