Unlock instant, AI-driven research and patent intelligence for your innovation.

A high-efficiency and stable perovskite solar cell prepared in air and its preparation method

A technology of solar cells and perovskites, applied in circuits, electrical components, photovoltaic power generation, etc., can solve the problems of performance degradation of perovskite solar cells, restrictions on large-scale commercialization, decomposition of perovskite materials, etc., to promote practical Chemical, excellent stability, the effect of enhanced stability

Active Publication Date: 2019-11-05
CENT SOUTH UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, perovskite materials are very sensitive to water vapor and oxygen, and easily react with water molecules in the air, resulting in the decomposition of perovskite materials.
Therefore, most perovskite photoelectric devices are prepared in an inert gas atmosphere with low water and oxygen content such as glove boxes, which limits their large-scale commercialization.
At the same time, due to the influence of water and oxygen in the air, the performance of perovskite solar cells continues to decline, and the stability needs to be improved.

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
  • A high-efficiency and stable perovskite solar cell prepared in air and its preparation method
  • A high-efficiency and stable perovskite solar cell prepared in air and its preparation method
  • A high-efficiency and stable perovskite solar cell prepared in air and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] a kind of like figure 1 The high-efficiency and stable perovskite solar cell prepared in the air shown includes five parts: a transparent conductive substrate, a hole transport layer, a perovskite material light absorption layer, an electron transport layer, and an electrode.

[0043] The preparation method in the present embodiment comprises the following steps:

[0044] (1) Use acetone, detergent / deionized water, deionized water, and isopropanol to ultrasonically clean the indium tin oxide (ITO) glass substrate for 20 minutes, then dry it with nitrogen gas, and then treat it with UV-ozone for 20 minutes.

[0045] (2) Take the poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid) solution out of the refrigerator, stir at room temperature for 20 minutes, and filter through a 0.45ul organic filter head. Place the substrate well, drop the filtered poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonic acid) solution, the spin coating process is: accelerate to 3000rp...

Embodiment 2

[0054] a kind of like figure 1 The high-efficiency and stable perovskite solar cell prepared in the air shown includes five parts: a transparent conductive substrate, a hole transport layer, a perovskite material light absorption layer, an electron transport layer, and an electrode.

[0055] The preparation method in the present embodiment comprises the following steps:

[0056] (1) Use acetone, detergent / deionized water, deionized water, and isopropanol to ultrasonically clean the indium tin oxide (ITO) glass substrate for 20 minutes, then dry it with nitrogen gas, and then treat it with UV-ozone for 20 minutes.

[0057] (2) Poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] was dissolved in toluene to form a solution with a concentration of 2 mg / ml, and heated and stirred at 50 degrees Celsius for 8 Hours. Place the substrate well, drop poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] solution, the spin coating process is: accelerate to 6000rpm within 3 seconds at an accelerat...

Embodiment 3

[0066] a kind of like figure 1 The high-efficiency and stable perovskite solar cell prepared in the air shown includes five parts: a transparent conductive substrate, a hole transport layer, a perovskite material light absorption layer, an electron transport layer, and an electrode.

[0067] The preparation method in the present embodiment comprises the following steps:

[0068] (1) Use acetone, detergent / deionized water, deionized water, and isopropanol to ultrasonically clean the fluorine-doped tin dioxide (FTO) glass substrate for 20 minutes, then blow dry with nitrogen, and then UV-ozone treatment 20 minutes.

[0069] (2) Dissolve 2,2',7,7'-tetra[N,N-bis(4-methoxyphenyl)amino]-9,9'-spirobifluorene in chlorobenzene to form a concentration of 90mg / ml solution. Bis(trifluoromethylsulfonyl)lithium was dissolved in acetonitrile to form a solution having a concentration of 170 mg / ml. Add 45 microliters of bis(tri Fluoromethylsulfonyl) lithium solution and 10 microliters of ...

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 high-efficiency and stable perovskite solar cell prepared in air and a preparation method thereof. The perovskite solar cell comprises a transparent conductive substrate, a hole transport layer, a perovskite material light absorption layer, an electron transport layer and electrode five parts. The preparation method of the invention is to prepare the perovskite material thin film in the air by using in-situ thermal spin coating, and after the thermal annealing treatment, the methylamine steam treatment is performed to obtain a continuous and dense perovskite material light absorption layer. The product prepared in the air has the advantages of high energy conversion efficiency, stability in the air, etc., and has important application prospects.

Description

technical field [0001] The invention belongs to the field of photovoltaic devices, and in particular relates to a high-efficiency and stable perovskite solar cell prepared in air and a preparation method thereof. Background technique [0002] Solar cells refer to photovoltaic devices that can convert solar energy into electrical energy. Solar energy has become one of the more and more important forms of energy supply because of its advantages such as cleanness, safety, longevity, and wide distribution. At present, traditional solar cells are mainly made of inorganic materials, such as monocrystalline silicon, gallium arsenide, copper indium gallium selenide, etc. [0003] In recent years, metal halide perovskite semiconductor materials are very suitable for application in the field of photovoltaic power generation due to their strong light absorption ability, low defect state density, high carrier mobility, and long carrier lifetime, which has attracted much attention. wid...

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 Patents(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/48H01L51/00
CPCH10K71/12H10K30/10H10K30/00H10K30/80Y02E10/549
Inventor 阳军亮黄可卿王春花张楚俊童思超李恒月
Owner CENT SOUTH UNIV