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

Method for preparing cesium-doped mixed perovskite solar cell in air environment

A technology of solar cells and air environment, applied in the field of solar cells, can solve the problems of unfavorable large-scale production of perovskite solar cells, small operation space, expensive glove box, etc., achieves excellent photoelectric conversion efficiency, smooth surface, and is beneficial to The effect of mass production applications

Pending Publication Date: 2019-11-26
ZHEJIANG ZHENENG TECHN RES INST +2
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The preparation methods used in the published literature on hybrid perovskite solar cells must strictly control the humidity and oxygen content, and are generally carried out in a glove box with a controlled atmosphere, but the glove box is expensive and has a small operating space, which is not conducive to calcium Mass Production of Titanium Ore Solar Cells

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 preparing cesium-doped mixed perovskite solar cell in air environment
  • Method for preparing cesium-doped mixed perovskite solar cell in air environment
  • Method for preparing cesium-doped mixed perovskite solar cell in air environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: Mixed-cation perovskite solar cells doped with 5% cesium

[0033] 1) The FTO glass was ultrasonically cleaned with alkaline detergent, deionized water, acetone, absolute ethanol and isopropanol for 30 min, and finally dried and treated with UV-ozone.

[0034] 2) Preparation of TiO on FTO glass substrate 2 Dense layer, the precursor solution includes the following components: tetraisopropyl titanate (0.3mol / L), acetylacetone (0.45mol / L), hydrochloric acid (0.09mol / L), water (1.8mol / L), and the solvent is ethanol.

[0035] 3) Absorb the precursor solution, drop it on the cleaned FTO glass substrate, make the solution cover the entire FTO surface, and form a film by spin coating, the spin coating speed is 3000rpm, and the time is 20s. Then sinter at 510 °C for 30 min in a muffle furnace or a hot plate.

[0036] 4) will cover TiO 2 The dense layer of FTO glass soaked in a certain concentration of TiCl 4 In the aqueous solution, keep warm at 70°C for 40 minut...

Embodiment 2

[0046] Example 2: Preparation of a mixed cation perovskite solar cell doped with 5% cesium in a relatively dry environment.

[0047] A mixed cation perovskite solution doped with 5% cesium is configured in a relatively dry air environment (temperature 18-23° C., relative humidity ≤ 30%), and the perovskite thin film is prepared. Concrete steps are consistent with embodiment 1.

Embodiment 3

[0051] Example 3: A mixed cation perovskite solar cell doped with 5% cesium, the evaporation rate of the silver electrode is 1000 angstroms / second, and the evaporation thickness is 1200 angstroms, that is, 1200 angstroms of silver metal is evaporated within two seconds. All the other operations and preparation techniques are the same as in Example 1.

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
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing a cesium-doped mixed perovskite solar cell in an air environment. The method comprises the following steps: preparing a TiO2 compact layer on transparent conductive glass, soaking the TiO2 compact layer in a TiCl4 aqueous solution, then taking out the TiO2 compact layer, and washing the TiO2 compact layer with deionized water and ethanol; spin-coating an obtained sample with a layer of TiO2 nanocrystalline slurry to obtain a TiO2 mesoporous layer; and preparing a cesium-doped mixed perovskite solution in the relatively dry air environment, spin-coating the TiO2 mesoporous layer with the cesium-doped mixed perovskite solution, placing the sample on a hot plate for heating after spin coating, cooling the sample to the room temperature to obtaina cesium-doped mixed perovskite light absorption layer, spin-coating the surface of the cesium-doped mixed perovskite light absorption layer with a hole transport layer, evaporating a layer of gold,silver or aluminum electrode on the hole transport layer, and finally preparing the cesium-doped mixed perovskite solar cell. The method has the beneficial effects that a composition formula of the perovskite light absorption layer is provided; and the composition, the structure and the performance of the perovskite light absorption layer can be adjusted by adjusting the relative content of all components.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and relates to a method for preparing a perovskite solar cell, in particular to a method for preparing a cesium-doped organic-inorganic hybrid perovskite solar cell (abbreviated as a perovskite solar cell) in an air environment . Background technique [0002] Under the current situation that fossil fuels are gradually depleted and environmental pollution is becoming more and more serious, the development of clean energy such as solar energy has become an inevitable choice for human society. Perovskite materials have the advantages of strong light absorption ability, large carrier mobility, long carrier diffusion distance, simple preparation method, and adjustable composition. In recent years, perovskite solar cells have attracted widespread attention due to their rapidly increasing photoelectric conversion efficiency. The highest certified efficiency has reached 24.2%, showing the excellent ...

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): H01L51/48H01L51/46
CPCH10K71/12H10K85/60H10K30/151Y02E10/549
Inventor 寿春晖范海东杨松旺龚水平洪凌彭浩陈文华邱鹤蒋新伟
Owner ZHEJIANG ZHENENG TECHN RES INST
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