Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Rare earth ion doped novel perovskite solar cell

A technology of solar cells and rare earth ions, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as poor stability and fast decomposition rate of perovskite light-absorbing layers, and achieve improved stability, improved photoelectric conversion efficiency, and improved The effect of high temperature stability

Active Publication Date: 2021-03-02
HEBEI UNIV OF TECH
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims at the problem that the perovskite solar cell has poor long-term stability when placed in the air, and the decomposition rate of the perovskite light absorbing layer is fast and cannot be converted into commercial application.

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
  • Rare earth ion doped novel perovskite solar cell
  • Rare earth ion doped novel perovskite solar cell
  • Rare earth ion doped novel perovskite solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A new type of Cs based on rare earth cerium ion doping 2 AgBr 6 Based perovskite solar cells

[0031] (1) Cleaning the transparent conductive glass substrate: In this example, commercial ITO transparent conductive glass is used as the substrate, and the average light transmittance is 90%. Sonicate the ITO glass with glass cleaner, deionized water and ethanol for 15 minutes, then dry it in an oven, and finally treat it in UV-ozone for 30 minutes. The whole process is to clean the surface of the ITO glass; the device structure is ITO;

[0032] (2) Preparation of electron transport layer: Spin-coat tin dioxide on the ITO substrate after ozone treatment, the volume ratio of SnO 2 : water = 1:6), the rotation speed is 4000rpm, an electron transport layer of 30nm is formed, and annealed at 100 for 30 minutes, the resulting structure is ITO / SnO 2 ;

[0033] (3) Preparation of perovskite light absorbing layer: in ITO / SnO 2 On the substrate, a thickness of 400nm 1% Ce was p...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a rare earth ion doped novel perovskite solar cell, and belongs to the field of novel photovoltaic solar cells. The perovskite solar cell device structure sequentially comprises a counter electrode (Au), a hole transport layer (SpiroOMeTAD), a perovskite light absorption layer (Cs2AgBiBr6), an electron transport layer (SnO2) and a transparent conductive glass substrate (ITO) from top to bottom, wherein the rare earth ions are cerium, ytterbium and the like. On the original basis of a traditional FTO / SnO2 / Cs2AgBiBr6 / Spiro-OMeTAD / Au device structure, rare earth is doped into the Cs2AgBiBr6 perovskite light absorption layer, the forbidden band width can be reduced, the spectral absorption range can be widened, then the photoelectric conversion efficiency of the perovskite solar cell is improved, and the device high-temperature stability is effectively improved.

Description

technical field [0001] The technical solution of the present invention is a novel perovskite solar cell doped with rare earth ions, which belongs to the field of novel photovoltaic solar cells. Background technique [0002] With the burning of fossil fuels causing environmental pollution and the reduction of non-renewable resources, the development of renewable new energy sources to replace traditional fossil fuels has become a research hotspot in the field of global energy and environment. Renewable energy includes solar energy, water energy, wind energy, biomass energy, wave energy, tidal energy, ocean temperature difference energy, geothermal energy, etc. They are recyclable in nature and are essential for the sustainable development of society and the environment. Solar energy is the most widely distributed of all energy sources. The conversion of solar energy into electrical energy can effectively alleviate the energy crisis; at the same time, solar energy is clean, eff...

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): H01L51/42H01L51/44H01L51/46H01L51/48
CPCH10K71/00H10K85/00H10K30/10H10K30/80Y02E10/549
Inventor 陈聪商雪妮郑士建孟凡斌张炜
Owner HEBEI UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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