Organic Semiconductor Composition Insulation Reliability
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Solution Overview
Problem
Existing organic thin film transistors face challenges in achieving improved insulation reliability without compromising mobility, as current compositions fail to meet the required levels of both performance metrics.
Innovation Solution
An organic semiconductor composition is developed that includes an anti-migration agent with specific structural formulas, which is mixed in sufficient quantities with organic semiconductor materials to enhance insulation reliability while maintaining mobility, specifically using compounds with molecular weights less than 3,000 and containing multiple functional groups to inhibit crystallization and improve dispersibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If higher amounts of antioxidant are added to improve insulation reliability, then oxidation resistance increases, but mobility may be compromised
Solution Approach 1:
The patent establishes an optimal concentration range (0.1-10 wt%) for antioxidants, identifying that too little provides insufficient oxidation protection while too much degrades mobility. This precise parameter control resolves the contradiction by defining the narrow window where both insulation reliability and mobility coexist at acceptable levels.
Solution Approach 2:
The patent applies partial action by using small but sufficient amounts of antioxidant (0.1-10 wt%) rather than large quantities. This partial addition provides just enough oxidation protection to improve insulation reliability without exceeding the threshold that would harm mobility, thus resolving the trade-off between the two parameters.
Data Source
Figure 1~2
AI summary
The present invention provides an organic semiconductor composition, which improves the insulation reliability of an organic thin film transistor without greatly reducing the mobility of the organic thin film transistor, and an organic thin film transistor, electronic paper, and a display device which are prepared by using the organic semiconductor composition. The organic semiconductor composition of the present invention contains an organic semiconductor material and an anti-migration agent containing at least either a compound X, which contains at least two or more groups selected from the group consisting of a group represented by Formula (A) and a group represented by Formula (B), or a compound Y which is represented by Formula (C).