Polyacene compound and organic semiconductor thin film
AssigneeAsahi Kasei Kabushiki Kaisha
InventorsKazuto Nagata, Yoshinori Naruta, Masatoshi Yakiyama
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Abstract
The present invention provides an organic semiconductor material which exhibits a high mobility, and excellent solubility in solvents and oxidation resistance. The present invention also provides an organic semiconductor thin film exhibiting a high mobility, and an organic semiconductor device exhibiting excellent electronic characteristics. A transistor structure is formed by coating the silicon substrate with a thin film of pentacene compound substituted halogens at 6 and 13 positions and aliphatic hydrocarbons at 2, 3, 9 and 10 positions, wherein the substrate is patterned beforehand with gold to have a source and drain electrodes.
Claims7
A method for producing a polyacene compound from a polyacenequinone compound by two reaction steps comprising:
- a first reaction step of reducing a polyacenequinone compound into a hydroxypolyacene derivative, and a second reaction step of halogenating and aromatizing the hydroxypolyacene compound into a polyacene compound having a structure represented by the chemical formula (I), wherein
- the polyacenequinone compound has a chemical structure corresponding to that of the polyacene compound, has the same number of 6-membered rings and the same R1, R2, R3 and R4, and has the carbonyl carbon of quinine, the carbon atom of which will be bound to a halogen group, when it is converted into the polyacene compound, and
- the hydroxypolyacene compound has a chemical structure corresponding to that of the polyacene compound, has the same number of 6-membered rings and the same R1, R2, R3 and R4, and has a carbon atom bound to a hydroxyl group and hydrogen atom, which will be bound to a halogen group, when it is converted into the polyacene compound,
- wherein at least one of R1, R2, R3 and R4 in the chemical formula (I) is/are an alkyl group having 1 to 15 carbon atoms or an alkoxy group having 1 to 15 carbon atoms, and the other(s) is/are a hydrogen atom;
- wherein two of Xs are each a halogen group and bound to the same acene ring and the others are each a hydrogen atom;
- and
- wherein k is an integer of 1 to 5.
A method for producing a polyacene compound having a structure represented by the following chemical formula (I) by two reaction steps, comprising a first reaction step of reducing a polyacenequinone compound having a structure represented by the chemical formula (II) into a hydroxypolyacene compound having a structure represented by the chemical formula (III), and a second reaction step of halogenating and aromatizing the hydroxypolyacene compound,
- wherein at least one of R1, R2, R3 and R4 in the chemical formulas (I), (II) and (III) is/are an alkyl group having 1 to 15 carbon atoms or an alkoxy group having 1 to 15 carbon atoms, and the other(s) is/are a hydrogen atom;
- wherein two of Xs are each a halogen group and bound to the same acene ring and the others are each a hydrogen atom;
- X1, X2, X3, X4, X5 and X6 in the chemical formulas (II) and (III) are each a halogen group or hydrogen atom, unless all of X1, X2, X3, X4, X5 and X6 are each a halogen group;
- wherein k in the chemical formula (I) is an integer of 1 to 5;
- m in the chemical formula (II) and (III) is an integer of 2 or more, and m+n is an integer of 3 to 7.
Dependencies are inferred from the claim text.