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

Method for improving efficiency of organic polymer photovoltaic cells

A photovoltaic cell, polymer technology, applied in photovoltaic power generation, circuits, electrical components, etc., can solve problems such as low photoelectric conversion efficiency

Active Publication Date: 2016-08-17
煦能新能源科技(江苏)有限公司
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although polymer solar cells have these advantages, there is an obvious disadvantage of this type of cell, that is, the photoelectric conversion efficiency is low, and there is still a certain distance from the efficiency (>15%) required for practical applications.

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
  • Method for improving efficiency of organic polymer photovoltaic cells
  • Method for improving efficiency of organic polymer photovoltaic cells
  • Method for improving efficiency of organic polymer photovoltaic cells

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] According to the above-mentioned content of the invention, the P3HT:PCBM photovoltaic system was selected as the experimental object, and the P3HT:PCBM (mass ratio 1:1, the concentration was both 20 mg / ml) was first dissolved in chloroform solvent, stirred magnetically for 8 h, and then the dissolution bottle was opened, Let the chloroform evaporate naturally. Then use o-dichlorobenzene to dissolve the photoactive film in the bottle, and stir it magnetically for more than 12 h to prepare the precursor solution for the formal photoactive layer film.

[0016] After cleaning the ITO conductive glass substrate, spin-coat ZnO functional layer on its surface, and then apply the prepared solution on the surface of ZnO by spraying method (the dosage is 20 ul, and the spin-coating is carried out in two steps: 600 r / min). , 6 s and 1200 r / min, 20 s). Then, the obtained photoactive layer film was naturally air-dried. After drying, MoO was successively evaporated on the surface o...

Embodiment 2

[0018] According to the above-mentioned content of the invention, select PTB7:PC 71 The BM photovoltaic system was used as the experimental object, and PTB7:PC was first dissolved in chloroform solvent. 71 BM (mass ratio 1:1.5, PTB7 concentration is 10 mg / ml, PC 71 BM concentration is 15 mg / ml), stir magnetically for 8 h, then open the dissolution bottle and let the chloroform evaporate naturally. Dissolve the photoactive film in the bottle with dichloroethane and stir magnetically for more than 8 h. Finally, a mixed solvent of chlorobenzene and 1,8-diiodooctane (97%: 3%) was used to dissolve PTB7:PC 71 BM to prepare the precursor solution for making the formal photoactive layer thin film.

[0019] After cleaning the ITO conductive glass substrate, spin-coat the ZnO functional layer on its surface, and then apply the above-prepared solution to the surface of ZnO by spin-coating method (amount of 20 ul, spin-coating process: 850 r / min, 50 s). Then, the obtained photoactive...

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

No PUM Login to View More

Abstract

The invention relates to a method for improving efficiency of organic conjugated polymer photovoltaic cells and belongs to the technical field of solar cells. An optical activity layer material is dissolved with a solvent firstly, and the solvent is volatilized after the optical activity layer material is sufficiently dissolved; the optical activity layer film is dissolved with another solvent and becomes a precursor solution for preparation of an optical activity layer after the optical activity layer film is sufficiently dissolved, wherein the optical activity layer material can be dissolved multiple times and details are in an attached figure of the specification. With the adoption of the method, the configuration of a polymer in the solutions can be optimized to the largest extent and reserved in an optical activity layer of a polymer photovoltaic device to the largest extent, donor and receptor phase structures are distributed more uniformly in the optical activity layer, and the efficiency of the organic polymer photovoltaic cells can be remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of organic photovoltaic cell devices, and relates to a method for improving the photoelectric conversion efficiency of organic photovoltaic cell devices. Background technique [0002] With the increasing depletion of traditional energy sources and the increasingly serious environment, solar energy has attracted people's attention. Polymer solar cells have outstanding advantages such as light weight, low price and flexibility, and have become a current research hotspot. Polymer solar cells can be used not only in the field of daily life, electronic products, but also in the field of construction, which is easy to realize the integration of photovoltaic buildings and has good environmental compatibility. Despite these advantages of polymer solar cells, there is an obvious disadvantage of this type of cells, which is the low photoelectric conversion efficiency, which is still a certain distance from the effici...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/48
CPCH10K30/30Y02E10/549
Inventor 胡荣程江闫兴武柳红东杨鑫李璐
Owner 煦能新能源科技(江苏)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