Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Flexible solar concentrator with nano grains and preparation method of flexible solar concentrator

A solar concentrator and texture technology, applied in circuits, photovoltaic power generation, semiconductor devices, etc., can solve problems such as restricting the application environment and field, affecting light utilization efficiency, hard and fragile materials, etc., to improve photoelectric conversion efficiency, reduce The effect of light energy loss and improved utilization

Inactive Publication Date: 2020-05-15
紫石能源有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current luminescent solar concentrators (LSC) are made of transparent plates as the carrier to disperse fluorescent materials, mainly glass or PMMA plexiglass. This type of concentrator has at least the following defects: ①The material is hard and fragile, heavy, and fixed installation Inconvenient, non-bendable, etc., which limit its application environment and field; ②The surface of glass and other substrate materials is very smooth, and the reflection and interference of light are serious, which reduces the proportion of incident light transmitted through the concentrator, resulting in loss of light energy and affecting light utilization efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flexible solar concentrator with nano grains and preparation method of flexible solar concentrator
  • Flexible solar concentrator with nano grains and preparation method of flexible solar concentrator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]Dissolve 1 gram of cadmium selenide / cadmium sulfide (CdSe / CdS) quantum dots and 100 grams in 500 mL of dimethylacetamide (DMAC, light transmittance greater than 90%), with the following (structural formula 1) transparent poly The imides were mixed together and stirred for 1 hour to obtain a mixed slurry, which was left to stand to remove air bubbles, spread the slurry on a glass plate, covered with a DVD disc, and heated in an oven at 80°C for 4.5 hours. The product is taken out and cooled. The structural polyimide only needs to reflux the monomer in a common polar solution solvent, such as: N-methylpyrrolidone, and does not need ionic liquid auxiliary reaction, which is simple and low in cost. The light transmittance of the product is higher than 90%, and the glass transition temperature is higher than 311°C.

[0039]

Embodiment 2

[0041] Dissolve 0.1 gram of cadmium selenide / cadmium sulfide (CdSe / CdS) quantum dots and 100 grams of transparent polyimide with the following (structural formula 2) in 500 mL of N,N-dimethylformamide (DMF) Mix together, stir for 1 hour to get a mixed slurry, let it stand, remove air bubbles, spread the slurry on a glass plate, cover the surface of the slurry with a DVD disc, and heat in an oven at 80°C for 4.5 hours. The product is taken out and cooled. The structural polyimide only needs to reflux the monomer in a common polar solution solvent, such as: N-methylpyrrolidone, and does not need ionic liquid auxiliary reaction, which is simple and low in cost. The light transmittance of the product is higher than 90%, and the glass transition temperature is higher than 265°C.

[0042]

Embodiment 3

[0044] 5 grams of cadmium selenide / cadmium sulfide (CdSe / CdS) quantum dots are mixed with 100 grams of transparent polyimide having the following (structural formula 1) dissolved in 500 mL of dimethylacetamide (DMAC), Stir for 1 hour to obtain a mixed slurry, let it stand still, remove air bubbles, spread the slurry on a glass plate, cover the surface of the slurry with a DVD disc, and heat in an oven at 80°C for 3 hours. The product is taken out and cooled. The structural polyimide only needs to reflux the monomer in an ordinary polar solution solvent, such as: N-methylpyrrolidone, and does not need ionic liquid auxiliary reaction, which is simple and low in cost. The light transmittance of the product is higher than 90%, and the glass transition temperature is higher than 318°C.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Glass transition temperatureaaaaaaaaaa
Glass transition temperatureaaaaaaaaaa
Glass transition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention relates to a flexible solar concentrator with nano grains. The flexible solar concentrator comprises a transparent polyimide flexible matrix material, a quantum dot material is dispersedin the matrix material, and the nano grains are arranged on at least one surface of the matrix material. The condenser has the advantages of being soft and light, being easy to install, being bendable and the like, and is suitable for being used on various objects with irregular surfaces. According to the present invention, the nano grains are arranged on the surface of the solar concentrator, sothat the influence of light reflection and interference is further reduced, the light energy loss is reduced, and the light utilization efficiency is improved. The light-emitting solar concentrator has the excellent high-temperature resistance and weather resistance, and has durability in a long-term irradiation environment of the outdoor sunlight. The invention also relates to a preparation method of the solar concentrator.

Description

technical field [0001] The invention relates to the technical field of solar related components, in particular to a flexible solar concentrator and a preparation method thereof. Background technique [0002] The working principle of the solar concentrator LSC is: collect low-energy radiation in a large area, gather it into a small area of ​​high-energy radiation and output, gather more energy to the battery, improve the utilization rate of solar energy, reduce Solar PV system cost. [0003] There are three types of solar concentrating technologies: focusing type, reflective type and fluorescent concentrating technology. Among them, the fluorescent concentrating technology realizes the fluorescent concentrating effect of high quantum efficiency, thereby maximizing the photoelectric conversion efficiency of solar cells per unit area. Fluorescence concentrating technology can use sunlight incident at any angle without the need for a sun tracking device. Compared with ordinary ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01L31/054H01L31/18
CPCH01L31/054H01L31/18Y02E10/52Y02P70/50
Inventor 王权刘琦
Owner 紫石能源有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com