Colored Transparent Solar Cell Dual-Side Color Implementation

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Solution Overview

Problem

Current transparent solar cells for building integration face challenges in achieving high power generation while maintaining aesthetic appeal and durability, particularly in implementing colors on both sides of the solar window.

Innovation Solution

A colored transparent window-type solar cell design utilizing a double layer structure with a first and second color implementation layer, each comprising a conductive and insulation layer, allowing independent adjustment of thickness and refractive index to achieve various colors, and including a light absorbing layer between transparent electrodes for efficient electricity generation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single layer color implementation structure is used, then the device complexity is reduced, but the ability to implement colors on both sides independently is compromised

Engineering Contradiction:
Improvecolor implementation capabilityVSAvoidlayer structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The solar cell is divided into two separate color implementation layers: a first color implementation layer adjacent to the first transparent electrode and a second color implementation layer adjacent to the second transparent electrode. This segmentation allows each layer to independently implement colors on opposite sides of the solar cell, resolving the contradiction by enabling dual-side color customization without requiring a single complex multi-functional layer.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from a single-layer approach to a dual-layer structure, adding a dimensional aspect to the color implementation. By stacking color implementation layers on both sides of the light-absorbing layer, the system gains the ability to independently control colors in different spatial dimensions (front and back surfaces), thereby achieving versatile color implementation while maintaining manageable complexity through modular design.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If the thickness of color implementation layers is increased to enhance color effect, then the aesthetic appeal is improved, but the light transmittance is reduced

Engineering Contradiction:
Improvecolor varietyVSAvoidlight transmittance
Core Design Contradiction:
Adaptability or versatilityVSIllumination intensity

Solution Approach 1:

The patent employs parameter changes by adjusting the thickness and refractive index of the first and second color implementation layers to independently control color appearance and light transmittance. By varying these parameters, the system can achieve desired aesthetic effects while maintaining sufficient light transmission for power generation, resolving the contradiction between color enhancement and light transmittance preservation.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If a double layer structure with independent color implementation is used, then the aesthetic appeal and color versatility are improved, but the manufacturing complexity increases

Engineering Contradiction:
Improveindependent color controlVSAvoidlayer deposition process
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The manufacturing process is segmented into distinct steps for forming the first color implementation layer and the second color implementation layer. Each layer can be deposited, patterned, and optimized independently, which simplifies the overall manufacturing complexity compared to creating a single complex multi-functional layer. This segmentation allows for modular fabrication and quality control.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent utilizes parameter changes in the deposition process, allowing independent adjustment of thickness and refractive index for each color implementation layer. This parameter control enables precise tuning of optical properties during manufacturing, facilitating easier production and quality assurance while maintaining the benefits of independent color control on both sides.

Inventive Principle:
Principle #35Parameter changes

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 stable implementation of multiple colors while securing light transmittance and absorbing properties, enhancing durability and aesthetic appeal by using a double layer structure that maintains light transmittance and absorbing properties, suitable for use as transparent solar windows.

Implementation Method 1

a light absorbing layer disposed between the first transparent electrode and the second transparent electrode

Methodology Applied
Scientific EffectPhotovoltaic effect: Photovoltaic Effect

Implementation Method 2

the thickness or refractive index of each of the first insulation layer and the first conductive layer may be adjusted to implement the color of the first color implementation layer, the thickness or refractive index of each of the second insulation layer and the second conductive layer may be adjusted to implement the color of the second color implementation layer

Methodology Applied
Scientific EffectOptical interference: Interference

Data Source

PatentUS11393936B2Colored transparent solar cell
Publication Date: 2022.07.19 ELECTRONICS & TELECOMM RES INST
  • US11393936B2 patent drawing
  • US11393936B2 patent drawing
  • US11393936B2 patent drawing

AI summary

Provided is a transparent solar cell including a first transparent electrode, a second transparent electrode, a light absorbing layer, a first color implementation layer, and a second implementation layer, wherein each of the first color implementation layer and the second implementation layer includes an insulation layer and a conductive layer. By using a double layer, it is possible to provide a colored transparent solar cell securing stability and durability and implementing colors on both sides.