Light-Recycling Diffuser Plate With Transparent DSSC Layers
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Solution Overview
Problem
Existing lighting devices waste significant amounts of light energy due to inefficient diffuser plates, and existing photoelectric conversion cells, such as DSSCs, have low efficiency and stability issues when used with artificial light sources, limiting the recycling of light energy.
Innovation Solution
A lighting diffuser plate with a photo-electrode and counter electrode structure, using a conductive substrate and nanoparticle metal film layers, and a liquid electrolyte composition, capable of collecting and recycling light energy from artificial sources like LED lamps while maintaining transparency and color adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a photoelectric conversion cell is installed close to the lighting device to collect light energy, then light energy recycling is enabled, but the transparency of the cell decreases, blocking the light generated from the light source
Solution Approach 1:
The device is divided into two distinct functional layers: a photoelectric conversion layer for collecting light energy and a diffuser layer for transmitting and diffusing light. This segmentation allows each layer to optimize its specific function without compromising the other, enabling both high energy recycling efficiency and adequate light transmission.
Solution Approach 2:
The patent transitions from considering a single-plane solution to a multi-layered vertical structure. By stacking the photoelectric conversion cell and diffuser plate in different spatial dimensions (layers), the system achieves both functions simultaneously - the photoelectric layer captures energy while the diffuser layer transmits light, resolving the contradiction between energy collection and light transmission.
2Illumination intensity
If a typical diffuser plate is used to diffuse light from LED light source, then light distribution uniformity is improved, but significant amounts of light energy are lost in a form that is difficult to recycle
Solution Approach 1:
The patent merges the diffuser plate and photoelectric conversion cell into a single integrated device. The diffuser layer maintains its light-diffusing function to achieve uniform illumination, while the photoelectric conversion layer simultaneously captures the diffused light to convert it into electrical energy, eliminating the trade-off between light distribution and energy recyclability.
Solution Approach 2:
The integrated device performs multiple functions simultaneously: it acts as both a light diffuser for uniform illumination and a photoelectric converter for energy recycling. This multi-functionality allows the system to achieve both good light distribution and high energy recyclability without requiring separate components.
3Ease of manufacture
If DSSC is used for photoelectric conversion, then manufacturing cost is reduced and material restrictions are eliminated, but photoelectric conversion efficiency remains relatively low compared to other solar cells
Solution Approach 1:
The patent optimizes key parameters of the DSSC structure, including using nanoparticle-based photoelectrode layers to increase surface area for light absorption, optimizing electrolyte composition and thickness, and adjusting the arrangement and materials of electrode layers. These parameter changes significantly improve photoelectric conversion efficiency while maintaining the cost advantages of DSSC technology.
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 solution enables high-efficiency light energy collection and recycling, allowing for continuous operation in various environments, easy installation, and customizable color output, enhancing the functionality of lighting systems.
Implementation Method 1
a photo-electrode formed on a conductive substrate or a flexible substrate and including a metal-oxide nanoparticle porous film onto which a photosensitive dye is adsorbed
Implementation Method 2
a counter electrode provided to face the photo-electrode at a distance, formed on the conductive substrate or the flexible substrate and including a nanoparticle metal film layer
Implementation Method 3
a liquid electrolyte composition filled between the photo-electrode and the counter electrode
Implementation Method 4
a metal-oxide nanoparticle porous film onto which a photosensitive dye is adsorbed
Data Source
AI summary
The present disclosure relates to a lighting diffuser plate for collecting light energy from an artificial light source, which is provided with: (a) a photo-electrode formed on a conductive substrate or a flexible substrate and including a metal-oxide nanoparticle porous film onto which a photosensitive dye is adsorbed; (b) a counter electrode provided to face the photo-electrode at a distance, formed on the conductive substrate or the flexible substrate and including a nanoparticle metal film layer; and (c) a liquid electrolyte composition filled between the photo-electrode and the counter electrode, and a lighting apparatus system including the lighting diffuser plate.