Photoelectric Element Transparent Conductor Pattern Light Concentration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current photovoltaic cells face challenges in maximizing light conversion efficiency due to high reflectance and inefficient light absorption, which limits their energy conversion capabilities.
Innovation Solution
A photoelectric element is designed with a semiconductor substrate and transparent conductor patterns formed on its surface, where the transparent conductor patterns are arranged in a specific periodic pattern to concentrate incident light and reduce reflectance, thereby enhancing light absorption and conversion efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional photovoltaic cells are used, then the structure is simple, but light reflectance is high and conversion efficiency is low
Solution Approach 1:
The transparent conductor layer is divided into multiple isolated pattern portions arranged in a periodic pattern, rather than being a continuous layer. This segmentation creates multiple light concentration points and reduces overall reflectance while maintaining manufacturing feasibility through standard photolithography processes
Solution Approach 2:
The transparent conductor patterns are formed with three-dimensional protrusions on the semiconductor substrate surface, adding vertical dimensionality to the otherwise planar structure. This creates light-trapping effects and enhances light absorption in the active layer without complicating the manufacturing process
2Productivity
If light absorption is increased, then conversion efficiency improves, but light penetration depth becomes insufficient
Solution Approach 1:
The transparent conductor pattern portions are formed with curved or rounded top surfaces rather than flat surfaces. This curvature creates gradient refraction of incident light, bending light rays at multiple angles and increasing the effective penetration depth into the semiconductor active layer, thereby improving absorption without requiring increased layer thickness
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 significantly reduces light reflectance and increases the depth of light penetration, leading to improved conversion efficiency and increased electromotive force, as demonstrated by reduced reflectance and enhanced internal quantum efficiency across various wavelengths.
Implementation Method 1
transparent conductor pattern portions formed on a surface of the semiconductor substrate to be connected to each other with a specific period such that incident light is concentrated in a specific area of the semiconductor substrate
Implementation Method 2
a photoelectric element according to an embodiment can increase its conversion efficiency by reducing the reflectance of incident light
Implementation Method 3
forming hole patterns by pressing a mold against the photocurable resin and curing the photocurable resin
Data Source
AI summary
The present invention relates to a photoelectric element and a method for manufacturing the same, and the photoelectric element according to the present invention includes: a semiconductor substrate; and transparent conductor pattern portions formed on a surface of the semiconductor substrate to be connected to each other with a specific cycle such that incident light is concentrated in a specific area of the semiconductor substrate.