Organic Functional Layer Conductivity via Coordinate Bonding
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Solution Overview
Problem
Existing optoelectronic components, such as OLEDs, face challenges in achieving high electron and hole conductivity in their layers, leading to efficiency and luminance losses.
Innovation Solution
The use of an organic functional layer comprising a matrix material, a first compound, and a second compound, where the first and second compounds interact with each other and the matrix material, enhancing conductivity through the formation of coordinate bonds and improved charge carrier transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional organic layers are used in optoelectronic components, then the device structure remains simple, but the conductivity of electrons and holes is insufficient, leading to efficiency and luminance losses
Solution Approach 1:
The patent applies composite materials by combining matrix material with dopant compounds (first compound and second compound) to create an organic functional layer with enhanced conductivity. The matrix material provides the base structure while the dopant compounds form coordinate bonds to improve charge carrier transport, resolving the contradiction between maintaining simple structure and achieving high conductivity.
Solution Approach 2:
The patent changes the chemical and physical parameters of the organic layer by introducing specific dopant compounds that form coordinate bonds with the matrix material. This alters the electrical conductivity parameter from insufficient to high, while the dopants are used in controlled amounts (e.g., 0.1-10 wt%) to avoid excessive complexity.
2Productivity
If layer conductivity is increased through dopant compounds, then efficiency and luminance improve, but the manufacturing process becomes more complex
Solution Approach 1:
The patent applies preliminary action by pre-synthesizing the dopant compounds (first compound and second compound) with specific molecular structures designed to form coordinate bonds. These compounds are prepared in advance and then incorporated into the organic functional layer during standard deposition processes, improving luminous efficiency without requiring fundamentally new manufacturing equipment or procedures.
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
This configuration results in increased luminance and recombination efficiency, thereby enhancing the luminous efficiency of the optoelectronic component by improving the conductivity of the organic functional layer.
Implementation Method 1
enhancing conductivity through the formation of coordinate bonds and improved charge carrier transport
Data Source
AI summary
In an embodiment a method for producing an optoelectronic component includes providing a substrate, forming a first electrode, depositing an organic functional layer or a plurality of organic functional layers over the substrate by simultaneous vaporization from different sources of a first compound and of a second compound and of a matrix material and forming a second electrode, wherein at least one coordinate bond is formed by the first compound with the second compound and by the first compound with the matrix material and/or by the second compound with the matrix material.