Photo-crosslinkable resin, insulating layer and organic transistor including same

The photocrosslinkable resin, with its specific repeating units, addresses the challenges of solubility, crosslinking temperature, and hydroxyl group issues in existing insulating layers for organic transistors, achieving high dielectric breakdown strength and solvent resistance for efficient organic transistor production.

JP7647059B2Active Publication Date: 2025-03-18TOSOH CORP
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Patent Information

Application Number
JP2020176159
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2020-10-20
Publication Date
2025-03-18
Estimated Expiration
2040-10-20

AI Technical Summary

Technical Problem

Existing resins for insulating layers in organic transistors either lack solubility in general-purpose solvents, require high crosslinking temperatures and long times, or have unreacted hydroxyl groups that reduce dielectric breakdown strength.

Method used

A photocrosslinkable resin with repeating units represented by specific formulas, which are soluble in general-purpose solvents, can be crosslinked at low temperatures and short times, and have excellent solvent resistance and insulation properties.

Benefits of technology

The resin provides an insulating layer with high dielectric breakdown strength, excellent solvent resistance, and can be used in organic transistors manufactured using printed electronics, enabling efficient and cost-effective production.

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Abstract

To provide a resin utilizable as an insulation layer of an organic transistor, soluble in a general-purpose solvent, cross-linkable at a low temperature in a short time, and excellent in insulation properties.SOLUTION: The photo cross-linkable resin includes a repeating unit represented by the following formula (1). In the formula (1), R1 represents a hydrogen atom or a C1-C6 alkyl group, L1 represents a bivalent linkage group, Ar1 represents a C6-C19 aryl group, Z represents a specific unsaturated group, p represents an integer of 0-20, and Ar1 may be the same or different when p is 2 or more.SELECTED DRAWING: None
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