Optoelectronic Reflector Material with Embedded Particles
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Solution Overview
Problem
Existing optoelectronic devices face challenges in achieving high reflectivity and thermal robustness in reflector materials, particularly in laser devices where high temperatures and luminance can lead to material degradation and radiation loss.
Innovation Solution
A reflector material comprising MgF2 or an inorganic matrix with embedded particles like TiO2, which has a refractive index difference from the matrix, is used, providing high reflectivity, thermal stability, and low light penetration depth, allowing for efficient radiation guidance and heat management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional reflector materials are used in laser devices, then the device can operate, but the reflector material degrades under high temperatures and high luminance conditions
Solution Approach 1:
The patent employs a composite reflector material consisting of a transparent matrix material (such as sapphire, silica glass, or fluorinated polymer) embedded with transparent particles having different refractive indices (such as TiO2, ZrO2, or SiO2). This composite structure combines the thermal stability of the matrix material with the high reflectivity of the particle inclusions, enabling the reflector to withstand high temperatures and luminance conditions in laser devices while maintaining optical performance.
2Loss of energy
If conventional reflector materials are used, then the device structure is simple, but radiation loss increases due to low reflectivity
Solution Approach 1:
The patent employs a composite reflector material consisting of a transparent matrix material (such as sapphire, silica glass, or fluorinated polymer) embedded with transparent particles having different refractive indices (such as TiO2, ZrO2, or SiO2). This composite structure combines the thermal stability of the matrix material with the high reflectivity of the particle inclusions, enabling the reflector to withstand high temperatures and luminance conditions in laser devices while maintaining optical performance.
Solution Approach 2:
The patent optimizes the refractive index difference between the matrix material and embedded particles to maximize reflectivity. By carefully selecting materials with specific refractive index values and controlling the particle size distribution (with D50 between 100 nm and 15 μm), the reflector achieves high reflectivity across the relevant wavelength range, thereby minimizing radiation loss without requiring overly complex material compositions.
3Loss of energy
If the reflector material has high light penetration depth, then the material is easier to manufacture, but reflectivity decreases
Solution Approach 1:
The patent optimizes the refractive index difference between the matrix material and embedded particles to maximize reflectivity. By carefully selecting materials with specific refractive index values and controlling the particle size distribution (with D50 between 100 nm and 15 μm), the reflector achieves high reflectivity across the relevant wavelength range, thereby minimizing radiation loss without requiring overly complex material compositions.
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 reflector material achieves high reflectivity and thermal robustness, minimizing radiation loss and extending the operational lifespan of optoelectronic components, especially in laser devices, by maintaining performance under high luminance and temperature conditions.
Implementation Method 1
The particles can have a refractive index which is different from the refractive index of the matrix material
Implementation Method 2
a conversion element for converting the wavelength of electromagnetic radiation which passes through at least a part of the conversion element
Implementation Method 3
The reflector is arranged to reflect electromagnetic radiation hitting the reflector
Data Source
AI summary
A converter for an optoelectronic component, an optoelectronic component, a method for forming a converter for an optoelectronic component and a material for a reflector of an optoelectronic component are disclosed. In an embodiment, a converter includes a conversion element for converting a wavelength of electromagnetic radiation which passes through at least a part of the conversion element and a reflector, wherein the reflector includes a reflector material which includes MgF2 and/or an inorganic material as a matrix material in which a plurality of particles is embedded, wherein a refractive index of the matrix material amounts to at least 1 and at most 2, and wherein a refractive index of the particles amounts to at least 1.5.