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Hole transporting material taking carbazoles bonded with tetracarbon chain as core as well as preparation method and application of hole transporting material

A technology of hole transport materials and hole transport layers, which is applied in the field of hole transport materials and their preparation, can solve the problems of slow development of hole transport materials, etc., and achieve improved hole mobility, good planar stacking, and improved hole density. The effect of transmission capacity

Active Publication Date: 2019-06-21
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the research on perovskite materials and devices has made great progress, the development of more efficient, stable and cheap hole transport materials has been slow

Method used

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  • Hole transporting material taking carbazoles bonded with tetracarbon chain as core as well as preparation method and application of hole transporting material
  • Hole transporting material taking carbazoles bonded with tetracarbon chain as core as well as preparation method and application of hole transporting material
  • Hole transporting material taking carbazoles bonded with tetracarbon chain as core as well as preparation method and application of hole transporting material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Synthesis of Example 1 Hole Transport Material JX-03

[0081] 1. Synthesis method

[0082] The specific synthetic route of JX-03, which is a hole transport material, is attached figure 1 shown.

[0083] This schematic diagram represents only an example of a synthesis method, which is not limited to the relevant substances shown in the figure. Concrete synthetic steps are as follows:

[0084] 1. Synthesis of compound 1

[0085]

[0086] Use a 50mL flask as a reaction vessel, add 3,6-diiodocarbazole (2.48g, 5.92mmol, 2.0eq), sodium hydride (1.62g, 60%, 40.5mmol, 6.84eq) into the flask, ventilate, add THF 15mL, 1,4 dibromobutane (639mg, 2.96mmol, 1.0eq) was added with stirring. The oil bath was reacted at 70°C for 12 hours, and the product was spin-dried under reduced pressure to obtain 2.52 g of a white product with a yield of 95.4%.

[0087] HRMS(ESI-Q-TOF)m / z:[M] + Calcd for C 28 h 20 N 2 I 4 :891.7800; Found:891.7783, such as figure 2 shown.

[0088] 2...

Embodiment 2

[0132] The preparation of embodiment 2 perovskite solar cells

[0133] 1. Synthesis method

[0134] A kind of perovskite solar cell, its preparation method specifically comprises the following steps:

[0135] 1. Soak FTO glass in ethanol for later use. Take out and protect part of the conductive layer with adhesive tape, and etch the empty part with zinc powder and hydrochloric acid (4mol / L). Sonicate with detergent in deionized water, deionized water, acetone, and ethanol in sequence. Soak in ethanol for later use.

[0136] 2. Take out the FTO glass treated in step 1 from ethanol, and spin-coat TiO on the surface of FTO 2 Sol, controlled conditions (4000rpm, 40s), and fired at 500°C for 1h.

[0137] 3. Take out the FTO glass treated in step 2 and soak it in TiCl after cooling 4 Hydrolysis solution (2.2mLTiCl 4 Dissolved in 500mL deionized water), placed at 70°C for 0.5h. After taking it out, rinse it with deionized water and ethanol in turn, and burn it at 500°C for 0...

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Abstract

The invention discloses a novel hole transporting material taking carbazoles bonded with a tetracarbon chain as a core as well as a preparation method and application of the novel hole transporting material. The hole transporting material taking carbazoles bonded with butane, butadiene or butadiyne as the core, and takes alkoxy or alkyl sulphanyl substituted diphenylamine as a side group; more triphenylamine structures of the hole transporting material can effectively improve the hole mobility; with a carbazole structure, the novel hole transporting material has a good plane stacking effect and improves the hole transporting capacity; and meanwhile, two carbazoles are bonded by the butane, the butadiene or the butadiyne, so that the stability of molecules is improved; alkoxy or alkyl sulphanyl is introduced to the terminal to regulate the performance of the material. The material has the advantages of simple synthesis, low cost, high performance, excellent thermal stability and broad application prospect; and the material which can be used as the hole transporting material is applied to photoelectric devices such as organic photoconductor drums, OLED and solar cells.

Description

technical field [0001] The present invention relates to the technical field of hole transport materials, more specifically, to a hole transport material with four-carbon chain-linked carbazole as the core, its preparation method and application. Background technique [0002] With the continuous development of the economy and the improvement of people's quality of life, optoelectronic technology is becoming more and more closely related to human life, such as organic photoconductive drums (OPC) in printers, OLEDs in displays, and solar cells to solve energy crisis problems, etc. They are all research hotspots in recent years. [0003] OPC has almost completely replaced the traditional inorganic photoconductor drum, and is widely used in laser printing, electrostatic copying and other fields, and the carrier transport material (CTL) occupies a very important position in the application of OPC, which can play a role in promoting photoelectricity. The transport and separation o...

Claims

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Application Information

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IPC IPC(8): C07D209/88H01L51/42H01L51/46H01L51/50H01L51/54
CPCY02E10/549
Inventor 邵光高伟杰余惠娟
Owner SUN YAT SEN UNIV
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