White Light Emitting Material via One-Step Coupling
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Solution Overview
Problem
Existing methods for preparing white light emitting materials are complex and costly, with limited reports on efficient and cost-effective synthesis methods.
Innovation Solution
A novel white light emitting material with a chemical structural formula represented by formula (I) is synthesized through a one-step coupling reaction of tris(4-iodophenyl)amine and 4-methoxyphenylacetylene or tris(4-iodophenyl)amine and methyl 4-ethynylbenzoate using a Pd/Cu mixed catalyst, allowing for temperature-dependent photoluminescence and white light emission without the need for multiple dopants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple dopants are used to achieve white light emission, then the color quality and luminous efficiency are improved, but the preparation complexity and manufacturing cost increase
Solution Approach 1:
The patent combines multiple dopant functions into a single organic light emitting material that can emit white light through temperature-dependent photoluminescence. This merging approach eliminates the need for multiple separate dopants while maintaining white light emission quality, thereby reducing preparation complexity and manufacturing cost
Solution Approach 2:
The organic light emitting material is designed to perform multiple functions: it serves as both the primary light emitting material and the temperature-dependent photoluminescence agent. This multi-functionality allows a single material to replace what would traditionally require multiple dopants, simplifying the overall system
2Illumination intensity
If multiple dopants are used to achieve white light emission, then the color quality and luminous efficiency are improved, but the raw material cost and manufacturing cost increase
Solution Approach 1:
The patent combines multiple dopant functions into a single organic light emitting material that can emit white light through temperature-dependent photoluminescence. This merging approach eliminates the need for multiple separate dopants while maintaining white light emission quality, thereby reducing preparation complexity and manufacturing cost
Solution Approach 2:
The patent employs organic light emitting materials that can be synthesized through one-step coupling reactions using readily available starting materials. This approach uses cost-effective organic compounds instead of expensive rare earth dopants, reducing raw material costs while achieving the desired white light emission
3Manufacturing precision
If complex preparation methods are used to synthesize white light emitting materials, then the product purity and performance are improved, but the manufacturing time and production efficiency decrease
Solution Approach 1:
The patent uses one-step coupling reactions that directly synthesize the final organic light emitting material from starting materials without requiring multiple sequential steps. This preliminary action approach ensures product purity through controlled reaction conditions while maintaining high production efficiency by eliminating intermediate purification steps
Solution Approach 2:
The patent replaces complex multi-step mechanical and chemical synthesis procedures with a streamlined one-step coupling reaction. This substitution maintains product purity through controlled reaction conditions while dramatically improving production efficiency by reducing the number of synthesis and purification cycles required
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 method significantly reduces raw material and manufacturing costs while enabling white light luminescence in diodes using a single organic light emitting material, providing a novel strategy for white organic light emitting diodes with controlled temperature and duration processes.
Implementation Method 1
A novel white light emitting material with a chemical structural formula represented by formula (I) is synthesized through a one-step coupling reaction of tris(4-iodophenyl)amine and 4-methoxyphenylacetylene or tris(4-iodophenyl)amine and methyl 4-ethynylbenzoate using a Pd/Cu mixed catalyst
Implementation Method 2
allowing for temperature-dependent photoluminescence and white light emission
Data Source
AI summary
A white light emitting material having a chemical structural formula represented by formula (I), a preparation method thereof and application thereof. The preparation method comprises subjecting tris(4-iodophenyl)amine and 4-methoxyphenylacetylene or tris(4-iodophenyl)amine and methyl 4-ethynylbenzoate to a coupling reaction under protection of a protective gas and catalysis of a Pd/Cu mixed catalyst, to obtain the white light emitting material. A novel temperature-sensitive light emitting material is synthesized through a one-step method. The material is applied to the field of diode luminescence based on the temperature-sensitive characteristic. White light luminescence can be finally realized only by reasonably controlling the temperature and duration time during heating a substrate. Compared with the existing art, the method greatly saves raw material costs and manufacturing process costs, and provides a novel idea and strategy for use of a white organic light emitting diode.