Organic Semiconducting Layer Compounds Balancing LUMO and Melting Point
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Solution Overview
Problem
Existing organic electronic compounds lack improved properties such as LUMO level, 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
A novel compound of Formula (I) with specific aryl and heteroaryl groups, substituents, and linkages is introduced, enhancing LUMO, dipole moment, and melting point, thereby improving the performance and longevity of organic electronic devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing organic compounds are used in electron transport layers, then device structure and basic functionality are maintained, but device lifetime and stability are insufficient
Solution Approach 1:
The patent applies parameter changes by systematically modifying molecular parameters of the organic compound including introducing specific aryl groups (Ar1-Ar6), heteroaryl groups, and substituent groups with defined chemical structures. The compound formula (I) establishes specific parameter ranges for these groups to achieve improved LUMO levels, dipole moments, and melting points, thereby extending device lifetime while maintaining manageable structural complexity through defined chemical space
Solution Approach 2:
The patent employs composite material principles by creating a compound that integrates multiple functional groups and structural motifs within a single molecular framework. The compound combines electron-transporting moieties with specific aryl and heteroaryl groups, creating a composite molecular structure that achieves multiple performance improvements (LUMO, dipole moment, melting point, lifetime) simultaneously rather than through separate materials
2Reliability
If compound properties such as LUMO and dipole moment are improved, then electron transport performance increases, but melting point and rate onset temperature may become suboptimal
Solution Approach 1:
The patent applies local quality by assigning different functional roles to specific regions of the molecule. The Ar1 group with condensed aromatic rings provides structural stability and appropriate melting point, while Ar2-Ar6 and substituent groups optimize electronic properties (LUMO, dipole moment). This spatial differentiation of functional qualities within the single compound enables simultaneous optimization of both electron transport performance and thermal properties
Solution Approach 2:
The patent uses parameter changes to balance electronic and thermal properties by adjusting molecular weight, aromatic ring condensation degree, and substituent types. These parameter modifications within formula (I) enable tuning of both electron transport characteristics and thermal stability metrics (melting point, rate onset temperature) to achieve optimal overall performance
3Productivity
If novel compound structures are designed to improve performance, then device efficiency and stability are enhanced, but manufacturing and synthesis complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the complex molecule into modular components (Ar1, Ar2-Ar6, substituent groups, linkages) that can be independently selected and combined according to formula (I). This modular architecture enables systematic optimization of device efficiency through combinatorial design while facilitating synthesis through stepwise assembly of predefined structural units with known chemical reactivity
Data Source
AI summary
The present invention relates to a compound of Formula (I): an organic semiconducting layer comprising the same, an organic electronic device comprising the organic semiconducting layer and a display device or a lighting device comprising the organic electronic device.