Photoelectric Device With Interlayer Insulating Structure
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Solution Overview
Problem
The high costs associated with generating photovoltaic energy using solar cells compared to thermal energy, and the need to improve the efficiency and reduce light loss in solar cells.
Innovation Solution
A photoelectric device design featuring a first semiconductor structure with a different conductivity type than a second semiconductor structure, separated by an interlayer insulating structure, with electrodes connected to each structure to enhance carrier collection efficiency and reduce serial resistance, including a passivation layer and antireflection layer to minimize surface recombination and light loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional solar cell structure is used, then manufacturing simplicity is maintained, but carrier collection efficiency is insufficient and serial resistance is high
Solution Approach 1:
The solar cell structure is divided into multiple semiconductor structures with different conductivity types (n-type and p-type) arranged in a specific pattern. This segmentation allows for improved carrier collection by separating electron and hole collection pathways, reducing recombination losses while maintaining manufacturability through modular construction
Solution Approach 2:
Different regions of the solar cell are assigned different conductivity types and functional characteristics. The interlayer insulating structure is strategically positioned in specific regions to control electrical properties locally, optimizing carrier collection at different locations while managing overall device complexity
2Productivity
If semiconductor structures with different conductivity types are separated by interlayer insulating structure, then carrier collection efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
An interlayer insulating structure is introduced as an intermediary element between semiconductor structures of different conductivity types. This insulating layer prevents unwanted electrical interactions while allowing optical transmission, thereby improving carrier collection efficiency without requiring direct physical contact between opposite polarity regions
Solution Approach 2:
The interlayer insulating structure serves multiple functions simultaneously: it provides electrical insulation between different conductivity types, maintains structural integrity, allows light transmission to reach active layers, and defines spatial relationships between components. This multi-functionality reduces the need for additional separate elements, potentially simplifying manufacturing despite the increased structural complexity
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 design increases carrier collection efficiency and reduces serial resistance, leading to improved power generation efficiency and reduced light loss, making photovoltaic energy more cost-effective compared to conventional solar cells.
Implementation Method 1
An exemplary clean energy source includes photovoltaic energy generated using solar cells, in which sunlight is transformed into energy
Implementation Method 2
The interlayer insulating structure separates the first semiconductor structure from the second semiconductor structure and separates the first semiconductor structure from the second electrode
Implementation Method 3
including a passivation layer and antireflection layer to minimize surface recombination and light loss
Implementation Method 4
including a passivation layer and antireflection layer to minimize surface recombination and light loss
Data Source
AI summary
A photoelectric device includes a first semiconductor structure and a second semiconductor structure on a substrate, and the first semiconductor structure includes a different conductivity type from the second semiconductor structure. The photoelectric device also includes a first electrode on the first semiconductor structure and a second electrode on the second semiconductor structure, and an interlayer insulating structure adjacent to the second semiconductor structure. The interlayer insulating structure separates the first semiconductor structure from the second semiconductor structure and separates the first semiconductor structure from the second electrode.