Boron Light-Emitting Compound for Delayed Fluorescence Efficiency
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Solution Overview
Problem
Existing boron-containing compounds do not exhibit excellent luminescent characteristics, limiting their effectiveness in light-emitting materials and elements.
Innovation Solution
A boron-containing compound of formula (I) is developed, featuring specific alkyl, phenyl, naphthyl, anthryl, or phenanthryl groups, with A1 and A2 groups defined by various formulas, allowing for improved luminescent efficiency and delayed fluorescence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional boron-containing compounds are used, then the structure is simple and easy to manufacture, but the luminescent characteristics are poor
Solution Approach 1:
The patent applies composite material design by combining boron-containing groups with specific organic moieties (formula II-IX) to create a compound with superior luminescent characteristics. The compound integrates multiple functional groups that work synergistically to achieve both high luminescent efficiency and delayed fluorescence, resolving the contradiction between simple structure and poor performance.
Solution Approach 2:
The patent utilizes parameter changes by systematically varying the substituents R1-R3 and the core structures A1-A2 in the compound design. By adjusting these molecular parameters, the invention optimizes luminescent properties including quantum yield, emission wavelength, and fluorescence lifetime, thereby improving luminescent characteristics while maintaining structural feasibility.
2Productivity
If conventional boron-containing compounds are used, then the synthesis process is simple, but the luminescent efficiency is low
Solution Approach 1:
The patent applies local quality principle by introducing specific functional groups (formulas II-IX) at particular positions (R1-R3) of the boron-containing compound. This localized structural optimization enhances luminescent efficiency without requiring complete redesign of the entire molecule, balancing performance improvement with structural complexity management.
3Reliability
If the compound structure is optimized for luminescence, then luminescent efficiency improves, but manufacturing complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the compound into modular components: a boron-containing core and separate substituent groups (formulas II-IX). This modular structure allows for systematic optimization of luminescent properties through substituent selection while maintaining a consistent core structure that simplifies the overall synthesis pathway.
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 boron-containing compound enhances luminescent efficiency in light-emitting materials and elements, particularly in organic photoluminescence and electroluminescence elements, with applications in substrates, anodes, and organic layers.
Implementation Method 1
Some of the light-emitting materials according to the present invention emit delayed fluorescence
Implementation Method 2
with applications in substrates, anodes, and organic layers
Implementation Method 3
in organic photoluminescence and electroluminescence elements
Data Source
AI summary
The present invention relates to a compound represented by formula (I) (in the formula, R1 is a C1-4 alkyl group or the like, and A1 and A2 are each independently a group, etc. represented by formula (II), in which R2 and R3 are each independently a hydrogen atom, a C1-4 alkyl group, or the like, and * is a bonded section), a light-emitting material containing said compound, and a light-emitting element containing said light-emitting material.