Optoelectronic Semiconductor Component with Segmented Luminescent Particles
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Solution Overview
Problem
Conventional optoelectronic semiconductor components face challenges in maximizing radiation-emitting surface area, heat dissipation, and emission efficiency due to the size and distribution of luminescent material particles, which often result in reduced performance and color purity.
Innovation Solution
The use of a multiplicity of active regions with a core-shell structure and strategically placed luminescent material particles of specific diameters between them, facilitated by electrophoretic deposition, enhances radiation conversion and scattering, thereby increasing the radiation-emitting surface area and improving heat dissipation and emission efficiency while allowing for precise control of chromaticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If luminescent material particles are used in conventional optoelectronic semiconductor components, then radiation conversion is achieved, but the radiation-emitting surface area is limited and heat dissipation is reduced
Solution Approach 1:
The invention divides the luminescent material into a multiplicity of individual particles with diameters between 1 μm and 1 mm, rather than using a continuous layer or fewer larger particles. This segmentation increases the total surface area for radiation emission and creates multiple pathways for heat dissipation, directly resolving the contradiction between limited surface area and poor heat dissipation
Solution Approach 2:
The luminescent material particles are distributed in three-dimensional space between the active regions, rather than being confined to a two-dimensional plane. This spatial distribution maximizes the radiation-emitting surface area volume and enables heat to dissipate in multiple directions, effectively increasing both surface area and heat dissipation capacity
2Productivity
If luminescent material particles are strategically placed between active regions, then emission efficiency is improved, but device complexity increases
Solution Approach 1:
The invention specifies particular parameter ranges for the luminescent material particles, including diameter (1 μm to 1 mm) and distribution density (0.1 to 10 particles per cubic millimeter). By optimizing these parameters, high emission efficiency is achieved while maintaining manufacturability, as the parameters provide clear design guidelines rather than requiring complex adaptive systems
Solution Approach 2:
The invention uses multiple identical or similar luminescent material particles distributed throughout the component, rather than requiring unique or highly varied structural elements. This repetition of standardized particles simplifies manufacturing while achieving high emission efficiency through their collective effect
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 approach significantly enhances the emission efficiency and color purity of the optoelectronic semiconductor component by optimizing the size and distribution of luminescent material particles, leading to improved heat dissipation and a larger radiation-emitting surface area, resulting in enhanced performance and precise control over the generated light's color characteristics.
Implementation Method 1
a multiplicity of luminescent material particles which are configured for converting the primary radiation into secondary radiation
Implementation Method 2
enhances radiation conversion and scattering, thereby increasing the radiation-emitting surface area
Implementation Method 3
The use of a multiplicity of active regions with a core-shell structure and strategically placed luminescent material particles of specific diameters between them, facilitated by electrophoretic deposition
Data Source
AI summary
An optoelectronic semiconductor component and a method for manufacturing an optoelectronic semiconductor component are disclosed. In an embodiment, the component includes a plurality of active regions configured to generate a primary radiation and a plurality of luminescent material particles configured to convert the primary radiation into a secondary radiation, wherein the active regions are arranged spaced apart from each other, wherein each active region has a main extension direction, wherein each active region has a core region comprising a first semiconductor material, wherein each active region has an active layer covering the core region, wherein each active region has a cover layer comprising a second semiconductor material and covering the active layer, wherein at least some of the luminescent material particles are arranged between the active regions, and wherein a diameter of a majority of the luminescent material particles is smaller than a distance between two adjacent active regions.