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

A carbazolyltetraaminepyrene hole transport material and its application in perovskite solar cells

A technology for solar cells and hole transport layers, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of narrow selection of inorganic hole transport materials, low photoelectric conversion efficiency, etc., and achieve good hole transport performance and Electron blocking performance, good energy conversion efficiency, convenient purification effect

Active Publication Date: 2021-03-26
INST OF CHEM CHINESE ACAD OF SCI +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The selection range of inorganic hole transport materials is narrow, and the photoelectric conversion efficiency of corresponding devices is relatively low

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 carbazolyltetraaminepyrene hole transport material and its application in perovskite solar cells
  • A carbazolyltetraaminepyrene hole transport material and its application in perovskite solar cells
  • A carbazolyltetraaminepyrene hole transport material and its application in perovskite solar cells

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Example 1. Synthesis of a carbazolyltetraaminepyrene hole transport material having a structural unit of formula I.

[0049] A kind of chemical structural formula is the carbazolyl tetraamine pyrene hole transport material of I, and its synthetic route is as follows:

[0050]

[0051] Synthesis of compound a:

[0052] Dissolve 110mg of 3,6-dibromocarbazole and 116mg of di-tert-butyl dicarbonate in 10mL of tetrahydrofuran, add 8mg of 4-dimethylaminopyridine and heat to reflux for 3 hours. Cool to room temperature after the reaction, and spin dry the solvent under reduced pressure. Separation and purification by column chromatography (eluent: dichloromethane) gave compound a with a yield of 90%.

[0053] Step b:

[0054] Dissolve 280mg 4,4'-dimethoxydiphenylamine, 250mg compound a and 170mg potassium tert-butoxide in toluene, add 1,1'-bisdiphenylphosphinoferrocene and tri(di benzylideneacetone) dipalladium, heated to reflux for 5 hours. After cooling, the solvent ...

Embodiment 2

[0060] Example 2. Synthesis of a carbazolyltetraaminepyrene hole transport material having a structural unit of formula II.

[0061] A kind of chemical structure formula is the carbazolyl tetraamine pyrene hole transport material of II, and its synthetic route is as follows:

[0062]

[0063] Synthesis of hole-transporting materials with the structure of formula II:

[0064] 250mg (0.40mmol) tetrakis (4-methoxyphenyl) -9H-carbazole-3,6-diamine, 70mg (0.14mmol) 1,3,6,8-tetrabromopyrene, 6mg (0.026mmol ) Palladium acetate and 150 mg (1.08 mmol) of potassium carbonate were dissolved in 15 mL of toluene, and heated to reflux for 24 hours under nitrogen protection. Extract three times with dichloromethane, dry the organic phase with anhydrous magnesium sulfate, remove the solvent by rotary evaporation, separate and purify by column chromatography (eluent: petroleum ether / ethyl acetate 2 / 1, v / v) to obtain the target product II , the yield was 27%. MALDI-TOF: 2680.7 for [M] + ...

Embodiment 3

[0066] Embodiment 3, utilize the compound shown in formula I and formula II obtained in embodiment 1 and embodiment 2 to prepare perovskite solar cell

[0067] The specific steps include: ultrasonicating the FTO conductive glass with deionized water, detergent, acetone, and ethanol for 15 minutes, then drying with nitrogen, and UVO treatment for 30 minutes before spin-coating the dense layer. A dense layer with a thickness of 50 nm and a mesoporous layer with a thickness of 150 nm were spin-coated on the FTO conductive glass by spin coating, and heat-treated at 500° C. for 30 minutes. After natural cooling, the perovskite solution was spin-coated on the mesoporous layer, and annealed at 100° C. for 5 minutes to obtain a perovskite layer with a thickness of 300 nm. The solution of the carbazolyltetraaminepyrene hole transport material shown in formula I or formula II was dropped onto the perovskite layer, left to stand for about 10 seconds, and then spin-coated to obtain a hole...

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 carbazolyltetraaminepyrene hole transport material as well as its preparation and application. The general structural formula of the carbazolyltetraaminepyrene hole transport material is shown in formula I and formula II. The hole transport material provided by the invention has good conjugation effect and thermal stability, its energy level matches that of perovskite, and has potential application value in the field of perovskite solar cells and the like.

Description

technical field [0001] The invention belongs to the field of optoelectronics, and relates to a carbazolyltetraaminepyrene hole transport material and its application in perovskite solar cells. Background technique [0002] Perovskite materials have high extinction coefficient and suitable band gap, long charge diffusion range, excellent bipolar carrier transport properties, wide spectral absorption range, simple preparation process, mild preparation conditions, and the photoelectric conversion of batteries High efficiency and other advantages. At present, the photoelectric conversion efficiency (PCE) of solar cells based on perovskite materials has exceeded 22%, becoming a star of hope in the field of photovoltaic power generation and one of the research hotspots in the field of renewable energy. The use of organic solid-state hole transport materials has improved the photoelectric efficiency and stability of the battery, and has become an important part of the perovskite b...

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): C07D209/86H01L51/42H01L51/46
CPCC07D209/86H10K85/622H10K85/636H10K85/6572H10K30/151Y02E10/549
Inventor 钟羽武邵将洋李冬梅孟庆波
Owner INST OF CHEM CHINESE ACAD OF SCI
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