Organic Semiconducting Layer Compounds for Stable Electron Transport
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing organic electronic compounds lack improved properties such as a LUMO further away from vacuum level, higher dipole moment, melting point, and rate onset temperature, leading to suboptimal performance and stability in organic electronic devices, particularly in electron transport layers.
Innovation Solution
Development of a compound of Formula (I) with specific arylene and aryl groups, substituents, and optional substituents to enhance LUMO, dipole moment, and melting point, which is integrated into an organic semiconducting layer to improve device performance and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If compounds with triazine groups are used as electron transport materials, then electron transport function is achieved, but the LUMO level is not sufficiently far from vacuum level and dipole moment is insufficient
Solution Approach 1:
The patent modifies the molecular structure by introducing specific aryl and arylene groups (such as phenyl, naphthyl, anthracenyl) at defined positions on the triazine core, and by varying substituents (R1-R6), to systematically adjust the LUMO level position and dipole moment while maintaining electron transport capability
Solution Approach 2:
The patent creates composite molecular structures by combining triazine core with multiple aromatic moieties (aryl and arylene groups) and various substituents, forming compounds with optimized electronic properties that achieve both appropriate LUMO level positioning and high dipole moment
2Reliability
If conventional organic compounds are used in electron transport layer, then device operation is achieved, but melting point and rate onset temperature are insufficient leading to reduced stability
Solution Approach 1:
The patent introduces rigid aromatic structures (naphthyl, anthracenyl, phenanthrenyl groups) and extends conjugation systems to increase molecular packing efficiency and intermolecular interactions, thereby elevating melting point and rate onset temperature to improve thermal stability
Solution Approach 2:
The patent designs composite molecular architectures combining triazine core with multiple aromatic rings and substituents, creating molecules with enhanced rigidity and intermolecular forces that result in higher melting points and improved thermal stability
3Productivity
If existing organic compounds are used, then basic device function is achieved, but dipole moment is insufficient leading to suboptimal performance
Solution Approach 1:
The patent strategically places electron-donating and electron-withdrawing groups on the triazine core, and introduces aromatic moieties with appropriate electronic characteristics to optimize the dipole moment while maintaining balanced charge transport
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to a compound of Formula (I), wherein Ar2 has the general Formula (II) as well as to an organic semiconducting layer, an organic electronic device and a display device comprising the same.