![4-Chloro-3-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridine structure](https://static.chemtradehub.com/structs/869/869335-75-1-a9d0.webp "4-Chloro-3-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridine structure")
4-Chloro-3-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridine
CAS Number:
869335-75-1
Molecular Formula:
C8H4ClF3N2
Stabilization of organic field-effect transistors by tert-butyl groups in dibenzotetrathiafulvalene derivatives
Literature Information
Publication Date
2011-06-15
DOI
10.1039/C1CP21507H
Impact Factor
3.676
Authors
Junki Nagakubo, Minoru Ashizawa, Tadashi Kawamoto, Akihiko Tanioka
View Original
Abstract
For a material for organic thin-film transistors, not only high mobility but also low threshold voltage and long-term stability are important requirements. In order to realize these properties, materials with relatively large oxidation potentials, namely weak donors, have been designed as p-channel organic semiconductors. Here we propose a different strategy; transistor properties of dibenzotetrathiafulvalene (DBTTF) are significantly improved by the introduction of tert-butyl groups. Although this chemical modification does not much change the ionization potential, small threshold voltage and stability over several months are attained together with the improved mobility, probably due to some kind of passivation effect of the bulky tert-butyl groups. In contrast, the systematic fluorine substitution rapidly diminishes the transistor performance. There are two kinds of herringbone structures with much different dihedral angles of about 50° and 130°, and the tert-butyl compound falls into the former category.
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Source Journal
Physical Chemistry Chemical Physics
CiteScore:
5.5
Self-citation Rate:
10.3%
Articles per Year:
3036
Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.
Recommended Compounds
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Molecular Formula:
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6-Benzyl-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridin-3(2H)-one
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Molecular Formula:
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