Anthracene Derivative Molecular Structure for Light-Emitting Element Efficiency
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Solution Overview
Problem
Current light-emitting elements using anthracene derivatives face challenges in achieving high emission efficiency, long life, and reduced power consumption, with existing materials lacking comprehensive performance data for commercialization.
Innovation Solution
Development of anthracene derivatives represented by specific general formulas, incorporating aryl and arylene groups with various substituents, which are used in light-emitting elements to enhance emission efficiency, extend device life, and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional anthracene derivatives are used in light-emitting elements, then the basic light emission function is achieved, but the emission efficiency is insufficient and device life is short
Solution Approach 1:
The patent modifies the molecular structure parameters of anthracene derivatives by introducing specific substituents (carbazole groups at 2,6-positions and phenyl groups at 9,10-positions) to optimize both emission efficiency and device stability. This structural parameter optimization enables high emission efficiency while extending device life to over 1000 hours at 100 cd/m² luminance.
Solution Approach 2:
The invention creates a composite light-emitting material by combining multiple functional groups (anthracene core, carbazole substituents, phenyl groups) into a single molecular structure. This composite structure achieves synergistic effects that simultaneously improve emission efficiency and device reliability, resolving the contradiction between these two parameters.
2Use of energy by moving object
If existing light-emitting materials are used, then the light emission function is achieved, but power consumption remains high
Solution Approach 1:
By optimizing the molecular structure parameters of the anthracene derivative (specifically the 2,6-dicarbazol-9,10-diphenyl configuration), the material achieves high emission efficiency which directly reduces power consumption. The improved emission efficiency means more energy is converted to light rather than being lost, thereby lowering overall power consumption of the light-emitting element.
3Ease of manufacture
If simple anthracene structures are used, then the synthesis is easier, but the device performance and life are insufficient for commercialization
Solution Approach 1:
The patent optimizes the molecular structure parameters to achieve the right balance between synthesizability and performance. The chosen substituents (carbazole and phenyl groups) are commonly available and can be introduced through standard organic synthesis methods, maintaining reasonable ease of manufacture while dramatically improving device life to over 1000 hours.
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 anthracene derivatives achieve high emission efficiency, long life, and low power consumption in light-emitting elements, making them suitable for next-generation displays and electronic devices.
Implementation Method 1
The light emission occurring when the singlet-excited state directly returns to the ground state is referred to as fluorescence
Implementation Method 2
the light emission occurring when the triplet-excited state returns to the ground state is referred to as phosphorescence
Data Source
AI summary
Objects of the present invention are to provide novel anthracene derivatives and novel organic compounds; a light-emitting element that has high emission efficiency; a light-emitting element that is capable of emitting blue light with high luminous efficiency; a light-emitting element that is capable of operation for a long time; and a light-emitting device and an electronic device that have lower power consumption. An anthracene derivative represented by a general formula (1) and an organic compound represented by a general formula (17) are provided. A light-emitting element that has high emission efficiency can be obtained by use of the anthracene derivative represented by the general formula (1). Further, a light-emitting element that has a long life can be obtained by use of the anthracene derivative represented by the general formula (1).