Spectral Converter Layout for Higher-Efficiency PV Solar Panels
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Solution Overview
Problem
Conventional photovoltaic (PV) solar energy systems face inefficiencies due to materials limitations, particularly with lanthanides and quantum-dot materials, which are costly and environmentally hazardous, and practical limitations such as heat generation, leading to suboptimal spectral response and energy conversion.
Innovation Solution
A photonic solar conversion system using a planar array of light concentrators and PV cells with a spectral converter that converts incident light to optimize photon energy alignment with the PV cells' band gap, employing a nano-optical coating and multilayered structure for efficient down-conversion, reducing heat-induced losses and enhancing photon density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If lanthanides and rare-earth materials are used to improve spectral response, then spectral conversion efficiency is improved, but cost and environmental safety deteriorate
Solution Approach 1:
The patent replaces expensive and environmentally hazardous lanthanide-based materials with organic dye molecules that can be easily synthesized, are non-toxic, and can be disposed of without environmental concern. The organic dyes achieve comparable spectral conversion efficiency through molecular design rather than relying on rare-earth elements.
Solution Approach 2:
The patent modifies the chemical composition parameters by transitioning from inorganic lanthanide materials to organic molecular structures. By changing the fundamental material class and adjusting molecular parameters such as conjugation length and substituent groups, the patent achieves spectral conversion functionality without the environmental and cost drawbacks of rare-earth materials.
2Productivity
If quantum-dot materials are used to improve spectral response, then spectral conversion efficiency is improved, but environmental safety and manufacturing complexity deteriorate
Solution Approach 1:
The patent replaces complex quantum-dot nanomaterials with simple organic dye molecules that can be synthesized through standard chemical processes. The organic dyes eliminate the need for sophisticated nanofabrication equipment and complex quality control procedures required for quantum dots, while maintaining spectral conversion functionality.
3Ease of manufacture
If conventional optical materials are used, then ease of manufacture is maintained, but spectral response efficiency deteriorates
Solution Approach 1:
The patent creates a composite system by incorporating organic dye molecules into an optical material matrix. This composite approach combines the ease of manufacturing conventional optical materials with the enhanced spectral response of specifically designed organic dyes, achieving both goals simultaneously through material hybridization.
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 increases solar panel efficiency by 15% to 22% through improved spectral response and reduced heat generation, using environmentally friendly materials and existing PV infrastructure, while maintaining cost-effectiveness.
Implementation Method 1
a spectral converter that extends between the planar array of light concentrators and the planar array of PV cells, wherein the spectral converter is configured to convert incident light of a first spectral distribution from the array of light concentrators to outgoing light of a second spectral distribution for the array of PV cells
Implementation Method 2
employing a nano-optical coating and multilayered structure for efficient down-conversion
Implementation Method 3
a planar array of light concentrators distributed in a pattern that is replicated over the array
Implementation Method 4
enhancing photon density
Implementation Method 5
a planar array of photovoltaic (PV) cells distributed in alignment with the light concentrators
Data Source
AI summary
There is provided an apparatus for solar energy power conversion comprising: a planar array of light concentrators distributed in a pattern; a planar array of PV cells distributed in alignment with the light concentrators; and a spectral converter that extends between the planar array of light concentrators and the planar array of PV cells, wherein the spectral converter is configured to convert incident light of a first spectral distribution from the array of light concentrators to outgoing light of a second spectral distribution for the array of PV cells.