Polymeric Composition for Luminescent Solar Concentrators
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Solution Overview
Problem
Current photovoltaic modules lack durability, flexibility, and temperature resistance, and their light absorption and re-emission properties degrade over time, limiting their long-term efficiency and performance in luminescent solar concentrators.
Innovation Solution
A polymeric composition combining a polymeric phase with a glass transition temperature of at least 50°C, an elastomeric phase with a flexible nature and a glass transition temperature of less than 20°C, and a fluorescent dye, which enhances mechanical properties and maintains light absorption and re-emission capabilities without degradation over time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If photovoltaic modules use conventional polymeric materials, then they achieve basic structural function, but they lose transparency and mechanical performance with temperature variations and aging
Solution Approach 1:
The patent applies parameter changes by carefully selecting and controlling the glass transition temperatures of different polymeric phases. The first polymeric phase has Tg ≥ 50°C to maintain structural stability, while the second elastomeric phase has Tg < 20°C to provide flexibility and impact resistance. This dual-phase temperature parameter strategy ensures the material maintains both transparency and mechanical performance across varying temperatures and over time.
Solution Approach 2:
The invention uses a composite material system consisting of two distinct polymeric phases with different glass transition temperatures. This composite structure combines a rigid phase (Tg ≥ 50°C) for structural integrity and an elastomeric phase (Tg < 20°C) for flexibility and impact resistance, resolving the contradiction between maintaining stability and achieving reliability over time.
2Strength
If photovoltaic modules prioritize rigidity and structural stability, then they maintain shape and structural integrity, but they lose flexibility and impact resistance
Solution Approach 1:
The patent segments the polymeric material into two distinct phases with different mechanical properties. The first polymeric phase (Tg ≥ 50°C) provides structural integrity and rigidity, while the second elastomeric phase (Tg < 20°C) provides flexibility and impact resistance. This segmentation allows both contradictory properties to coexist in the same material system.
Solution Approach 2:
The invention applies local quality by having different polymeric phases distributed throughout the material matrix. The rigid phase locations provide structural support while the elastomeric phase locations provide flexibility, allowing the material to exhibit both structural integrity and adaptability in different regions simultaneously.
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 composition provides improved mechanical properties, temperature resistance, and sustained light absorption and re-emission performance, making it suitable for long-lasting and efficient photovoltaic modules that maintain performance over several years.
Implementation Method 1
a fluorescent dye, which enhances mechanical properties and maintains light absorption and re-emission capabilities
Data Source
AI summary
The present invention relates to a polymeric composition comprising a polymeric elastomeric phase and a fluorescent dye. In particular the present invention relates to a polymeric composition comprising a polymeric elastomeric phase and a fluorescent dye, its process of preparation and use. The present invention concerns also objects or articles comprising a polymeric composition comprising a polymeric elastomeric phase and a fluorescent dye. The present invention concerns as well a photovoltaic module comprising a polymeric composition comprising a polymeric elastomeric phase and a fluorescent dye.