Core fluorination enhances solubility and ambient stability of an IDT‐based n‐type semiconductor in transistor devices
File(s)Final Paper Accepted.docx (2.43 MB)
Accepted version
Author(s)
Type
Journal Article
Abstract
The synthesis of a novel fluorinated n‐type small molecule based on an indacenodithiophene core is reported. Fluorination is found to have a significant impact on the physical properties, including a surprisingly dramatic improvement in solubility, in addition to effectively stabilizing the lowest‐unoccupied molecular orbital energy (−4.24 eV). Single‐crystal analysis and density functional theory calculations indicate the improved solubility can be attributed to backbone torsion resulting from the positioning of the fluorine group in close proximity to the strongly electron‐withdrawing dicyanomethylene group. Organic thin‐film transistors made via blade coating display high electron mobility (up to 0.49 cm2 V−1 s−1) along with good retention of performance in ambient conditions.
Date Issued
2020-04-27
Date Acceptance
2020-02-01
Citation
Advanced Functional Materials, 2020, 30 (17), pp.1-12
ISSN
1616-301X
Publisher
Wiley
Start Page
1
End Page
12
Journal / Book Title
Advanced Functional Materials
Volume
30
Issue
17
Copyright Statement
© 2020 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim. This is the accepted version of the following article: Hodsden, T., Thorley, K. J., Panidi, J., Basu, A., Marsh, A. V., Dai, H., White, A. J. P., Wang, C., Mitchell, W., Glöcklhofer, F., Anthopoulos, T. D., Heeney, M., Core Fluorination Enhances Solubility and Ambient Stability of an IDT‐Based n‐Type Semiconductor in Transistor Devices. Adv. Funct. Mater. 2020, 2000325, which has been published in final form at https://doi.org/10.1002/adfm.202000325
Sponsor
EPSRC
The Royal Society
Identifier
https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.202000325
Grant Number
EP/L016702/1
RSWF\R1\180001
Subjects
Science & Technology
Physical Sciences
Technology
Chemistry, Multidisciplinary
Chemistry, Physical
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Physics, Applied
Physics, Condensed Matter
Chemistry
Science & Technology - Other Topics
Materials Science
Physics
ambient stability
fluorination
n-type semiconductors
organic field-effect transistors
small molecules
ORGANIC SOLAR-CELLS
CONJUGATED POLYMERS
HIGH-PERFORMANCE
DESIGN STRATEGIES
RECENT PROGRESS
TRANSPORT
INDACENODITHIOPHENE
EFFICIENCY
OPTIMIZATION
02 Physical Sciences
03 Chemical Sciences
09 Engineering
Materials
Publication Status
Published
Date Publish Online
2020-02-26