Organic Semiconductor Compound Formula 1 Voltage Stability
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Solution Overview
Problem
There is a need to improve the performance of organic semiconductor materials and organic electronic devices, particularly in achieving stable operating voltage over time and enhancing thermal properties.
Innovation Solution
The use of a compound of Formula (1) in the semiconductor layer of organic electronic devices, which includes a metal ion (M) with specific valency, substituted or unsubstituted alkyl groups, and trifluoromethyl substituents, to enhance the device's performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional organic semiconductor materials are used in OLEDs, then the device can operate and emit light, but the operating voltage becomes unstable over time and thermal properties are insufficient
Solution Approach 1:
The patent modifies the chemical structure of organic semiconductor materials by introducing specific functional groups (Formula 1) and adjusting molecular parameters such as substituent types and metal ion selections. These parameter changes result in compounds with improved thermal stability and electrochemical properties, directly addressing the operating voltage instability and lifetime issues in conventional OLEDs
Solution Approach 2:
The invention creates composite organic semiconductor compounds combining multiple functional elements: organic ligands with specific substituents (R1-R6, B1-B6 groups), metal ions (M with valency n), and electron-withdrawing groups (N(SO2)2). This composite structure integrates the benefits of organic materials' flexibility with enhanced thermal and electrical stability from the metal complex, resolving the contradiction between operational reliability and device lifetime
2Ease of manufacture
If conventional organic semiconductor compounds are used, then device fabrication is straightforward, but thermal properties and performance characteristics are insufficient
Solution Approach 1:
The patent systematically varies molecular parameters including substituent positions (R1-R6), boron cage substitutions (B1-B6), and metal ion selections to optimize thermal properties. These controlled parameter changes allow tuning of thermal stability and decomposition temperature while preserving the compounds' suitability for standard OLED fabrication processes
Solution Approach 2:
The invention introduces specific functional groups and substituents at localized positions within the molecular structure (e.g., R1-R6 at different ring positions, B1-B6 on boron cage). These local structural modifications enhance overall thermal properties without fundamentally altering the compound class or requiring completely new fabrication approaches, thus maintaining ease of manufacture while improving thermal performance
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The implementation of the compound of Formula (1) leads to superior performance of organic electronic devices, including improved operating voltage stability over time and enhanced thermal properties, thereby addressing the existing challenges in the field.
Implementation Method 1
an organic electroluminescence material having a specific structure that emits circularly polarized light
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to an organic electronic device comprising a semiconductor layer which comprises a compound of formula (1).