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US 2016/0049592 A1Published application
Organic thin film transistor
AssigneeFUJIFILM Corporation
InventorsYasunori YONEKUTA, Koji TAKAKU, Wataru SOTOYAMA
Life of this patent
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Abstract
An organic thin film transistor containing a compound represented by the formula (1) in a semiconductor active layer has a high carrier mobility, a small change in the threshold voltage after repeated driving and a high solubility in an organic solvent. A1 and A2 represent S, O or Se; at least one of R1 to R6 represents a substituent represented by *-L-R wherein L represents a divalent linking group and R represents a hydrogen atom, an alkyl group, an oligooxyethylene group, an oligosiloxane group or a trialkylsilyl group.
Claims29
An organic thin film transistor containing a compound represented by the following formula (1) in a semiconductor active layer:
- wherein in the formula (1), A1 and A2 each independently represent a sulfur atom, an oxygen atom or a selenium atom;
- and R1 to R6 each independently represent a hydrogen atom or a substituent, provided that at least one of R1 to R6 represents a substituent represented by the following formula (W):
- *-L-R Formula (W)
- wherein in the formula (W), * represents a position bonded to a naphthalene ring in the formula (1), or bonded to a ring containing A1 or a ring containing A2;
- L represents a divalent linking group represented by any one of the following formulae (L-1) to (L-10), or a divalent linking group consisting of 2 or more divalent linking groups each represented by any one of the following formulae (L-1) to (L-10) in which the 2 or more divalent linking groups are bonded sequentially;
- and R represents a hydrogen atom, a substituted or unsubstituted alkyl group, an oligooxyethylene group having a repeating number of an oxyethylene unit of 2 or more, an oligosiloxane group having 2 or more silicon atoms, or a substituted or unsubstituted trialkylsilyl group, provided that R represents a hydrogen atom only when L is represented by any one of the formulae (L-1) to (L-3) and (L-8) to (L-10), and R represents a substituted or unsubstituted trialkylsilyl group only when L bonded to R is a divalent linking group represented by the following formula (L-3);
- wherein in the formulae (L-1) to (L-10), the wavy line represents a position bonded to any one of a naphthalene ring, a ring containing A1 and a ring containing A2;
- and * represents a position bonded to R in the formula (W);
- in the formula (L-8), m represents 4;
- in the formulae (L-9) and (L-10), m represents 2;
- in the formulae (L-1), (L-2), (L-8), (L-9) and (L-10), R′ each independently represents a hydrogen atom or a substituent, provided that, in the formulae (L-1) and (L-2), R′ each independently may form a condensed ring with R bonded to L.
8 more elements
A compound represented by the following formula (1):
- wherein in the formula (1), A1 and A2 each independently represent a sulfur atom, an oxygen atom or a selenium atom;
- and R1 to R6 each independently represent a hydrogen atom or a substituent, provided that at least one of R1 to R6 represents a substituent represented by the following formula (W):
- *-L-R Formula (W)
- wherein in the formula (W), * represents a position bonded to a naphthalene ring in the formula (1), or bonded to a ring containing A1 or a ring containing A2;
- L represents a divalent linking group represented by any one of the following formulae (L-1) to (L-10), or a divalent linking group consisting of 2 or more divalent linking groups each represented by any one of the following formulae (L-1) to (L-10) in which the 2 or more divalent linking groups are bonded sequentially;
- and R represents a hydrogen atom, a substituted or unsubstituted alkyl group, an oligooxyethylene group having a repeating number of an oxyethylene unit of 2 or more, an oligosiloxane group having 2 or more silicon atoms, or a substituted or unsubstituted trialkylsilyl group, provided that R represents a hydrogen atom only when L is represented by any one of the formulae (L-1) to (L-3) and (L-8) to (L-10), and R represents a substituted or unsubstituted trialkylsilyl group only when L bonded to R is a divalent linking group represented by the following formula (L-3);
- wherein in the formulae (L-1) to (L-10), the wavy line represents a position bonded to any one of a naphthalene ring, a ring containing A1 and a ring containing A2;
- and * represents a position bonded to R in the formula (W);
- in the formula (L-8), m represents 4;
- in the formulae (L-9) and (L-10), m represents 2;
- in the formulae (L-1), (L-2), (L-8), (L-9) and (L-10), R′ each independently represents a hydrogen atom or a substituent, provided that, in the formulae (L-1) and (L-2), R′ each independently may form a condensed ring with R bonded to L.
8 more elements
Dependencies are inferred from the claim text.