Organic Semiconductor Layer Stability Under High Humidity
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Solution Overview
Problem
Existing organic semiconductor elements face challenges in achieving high mobility and temporal stability, especially under high humidity conditions, which are crucial for applications in liquid crystal displays and organic electroluminescence devices.
Innovation Solution
The development of an organic semiconductor element with a compound having a specific constitutional repeating unit, represented by Formula 1, which forms an organic semiconductor layer that includes aromatic hydrocarbon and heterocyclic groups, enhancing mobility and stability. This compound is used in a composition for forming an organic semiconductor film, along with a binder polymer and solvent, to create a stable and efficient film.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional organic semiconductor materials are used, then the device structure can be simplified, but the mobility and temporal stability under high humidity deteriorate
Solution Approach 1:
The patent modifies the chemical structure parameters of organic semiconductor compounds by introducing specific constitutional repeating units with formulas (1)-(3), containing heteroatoms (O, S, Se, SiR2) and electron-withdrawing groups (Q), to achieve high mobility and temporal stability under high humidity conditions while maintaining reasonable structural complexity
Solution Approach 2:
The patent employs composite organic semiconductor materials with specific molecular structures containing multiple functional groups and heteroatoms arranged in constitutional repeating units, creating a composite material system that delivers both high performance and stability without excessive structural complexity
2Productivity
If existing organic semiconductor compounds are used, then the manufacturing process can be simplified, but the mobility deteriorates
Solution Approach 1:
The patent optimizes molecular parameters by designing compounds with specific constitutional repeating units containing heteroatoms and electron-withdrawing groups, achieving high carrier mobility while maintaining compatibility with existing manufacturing processes through solution-based fabrication methods
3Reliability
If conventional organic semiconductor materials are used, then the device can be manufactured easily, but the temporal stability under high humidity deteriorates
Solution Approach 1:
The patent modifies material parameters by introducing specific constitutional repeating units with heteroatoms and electron-withdrawing groups, achieving high temporal stability under high humidity while maintaining ease of manufacture through solution processing and standard fabrication techniques
Solution Approach 2:
The patent creates an inert molecular environment within the organic semiconductor compound structure by using stable constitutional repeating units with heteroatoms and electron-withdrawing groups, providing resistance against humidity degradation while maintaining compatibility with standard manufacturing processes
Data Source
AI summary
Objects of the present invention is to provide an organic semiconductor element having high mobility and excellent temporal stability under high humidity, and a manufacturing method thereof, to provide a novel compound which is suitable as an organic semiconductor, and to provide an organic semiconductor film having high mobility and excellent temporal stability under high humidity and a manufacturing method thereof, and a composition for forming an organic semiconductor film that can suitably form the organic semiconductor film.The organic semiconductor element according to the present invention has an organic semiconductor layer containing a compound having a constitutional repeating unit represented by Formula 1.