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

Bottom electrode type flexible perovskite solar cell and preparation method thereof

A solar cell and bottom electrode technology, applied in circuits, electrical components, photovoltaic power generation, etc., can solve problems such as difficult growth at low temperature, poor flexibility and bendability, deviation of reliability and stability, etc., to improve fill factor and current density, improve Flexibility and bendability, and the effect of improving energy conversion efficiency

Pending Publication Date: 2018-08-14
JIMEI UNIV
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, perovskite solar cells mainly have the disadvantages of difficulty in large-area growth and deviation in reliability and stability, and low temperature growth is also difficult, and it is not easy to prepare flexible solar cells.
Formal n-i-p type perovskite batteries require high temperature annealing, making it difficult to apply flexible batteries
Trans-type perovskite cells are promising in flexible perovskite cells, but current trans-type flexible perovskite solar cells have low efficiency and poor flexibility and bendability due to the use of oxides as electrodes or electron transport layers, Indium tin oxide flexible perovskite cells break after being bent a few times, causing device failure

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
  • Bottom electrode type flexible perovskite solar cell and preparation method thereof
  • Bottom electrode type flexible perovskite solar cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a method for preparing a bottom electrode type flexible perovskite solar cell. For a schematic structural diagram of the flexible perovskite solar cell in this embodiment, see figure 1 , specifically, includes the following steps:

[0026] (1) First, the flexible substrate is etched into the required target pattern by laser, and then the etched flexible substrate is ultrasonically cleaned with conventional detergent aqueous solution, deionized water, acetone and isopropanol for 20 minutes, and then nitrogen Blow dry for a clean flexible base ready to use.

[0027] (2) Use plasma cleaning to treat the flexible substrate for 10 minutes to hydrophilize the surface. First, spin-coat the silver nanowire solution on the flexible substrate to form the first bottom electrode, and then use the polymer material as poly 3 , 4- Ethylenedioxythiophene and polystyrene sulfonate (PEDOT:PSS) (model: PEDOT PH1000) were spin-coated on the bottom electrode of the...

Embodiment 2

[0034] This embodiment provides a method for preparing a bottom electrode type flexible perovskite solar cell. For a schematic structural diagram of the flexible perovskite solar cell in this embodiment, see figure 1 , specifically, includes the following steps:

[0035] (1) First, the flexible substrate is etched into the required target pattern by laser, and then the etched flexible substrate is ultrasonically cleaned with conventional detergent aqueous solution, deionized water, acetone and isopropanol for 20 minutes, and then nitrogen Blow dry for a clean flexible base ready to use.

[0036] (2) Use plasma cleaning to treat the flexible substrate for 10 minutes to hydrophilize the surface. First, spin-coat the silver nanowire solution on the flexible substrate to form the first bottom electrode, and then use the polymer material as poly 3 , 4- Ethylenedioxythiophene and polystyrene sulfonate (PEDOT:PSS) (model: PEDOT PH1000) were spin-coated on the bottom electrode of the...

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 discloses a bottom electrode type flexible perovskite solar cell and a preparation method thereof. The bottom electrode type flexible perovskite solar cell comprises a forward structureand a backward structure; the forward structure comprises a flexible substrate, a bottom electrode, an electron transport layer, a perovskite layer, a hole transport layer and an electrode from the bottom up in sequence; the backward comprises a flexible substrate, a bottom electrode, a hole transport layer, a perovskite layer, an electron transport layer and an electrode from the bottom up in sequence; and the bottom electrode layer adopts a metal nanomaterial and / or a conductive polymer material. On one hand, by virtue of setting of the bottom electrode, the flexibility and bendable propertyof the flexible perovskite solar cell can be improved to a certain degree, so the number of times of bending of the flexible perovskite solar cell can be increased, and a new approach is provided forpracticability of the flexible perovskite solar cell; and on the other hand, by virtue of addition of the bottom electrodes, the contact barrier between the bottom electrodes and the electron transport layer can be lowered, the series resistance is lowered, the filling factor and the current density are improved, the energy conversion efficiency is improved effectively, and feasibility is provided for commercialization of the flexible perovskite solar cell is provided.

Description

technical field [0001] The invention belongs to the related field of energy material technology, and relates to a preparation method of a flexible perovskite solar cell, in particular to a large-area preparation method of a bottom electrode type flexible perovskite solar cell. Background technique [0002] The current commercial solar cells are mainly silicon solar cells, and the production cost of monocrystalline silicon solar cells is high, especially the production of n-type monocrystalline silicon requires high-quality materials and silver paste, which makes the production cost more expensive than other technologies. Although polycrystalline silicon solar cells are cost-effective, they have the disadvantages of large light attenuation and low lifespan. The future solar technology must come from the third-generation thin-film solar cells. At present, the more promising ones are perovskite solar cells and organic solar cells, and the efficiency of organic solar cells is lo...

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): H01L51/42H01L51/46H01L51/44H01L51/48
CPCH10K85/10H10K30/00H10K30/65H10K30/80Y02E10/549
Inventor 王敏帅
Owner JIMEI UNIV
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