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Organic rare-earth ligand capable of regulating carrier transport power and its preparing method and use

A rare earth complex and transport capability technology, applied in chemical instruments and methods, lighting devices, light sources, etc., can solve the problems of low efficiency, no contribution to hole injection and transport, lack of practical prospects, etc., and achieve excellent application prospects, The effect of improving photoluminescence stability and improving electroluminescence efficiency

Inactive Publication Date: 2006-03-22
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the coordination of two triphenylphosphine oxides to the central trivalent europium ion (Eu 3+ ), from the perspective of molecular structure, the six benzenes on these two ligands have good electron transport properties due to the role of phosphine oxide moieties, but have no contribution to hole injection and transport.
It directly leads to the low efficiency of this complex and the lack of practical prospects

Method used

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  • Organic rare-earth ligand capable of regulating carrier transport power and its preparing method and use
  • Organic rare-earth ligand capable of regulating carrier transport power and its preparing method and use
  • Organic rare-earth ligand capable of regulating carrier transport power and its preparing method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] Embodiment 1, Eu(TTA) 3 (TAPO) 2 Synthesis

[0101] Add 333.3mg (1.5mmol) thienyl trifluoromethyl acetylacetone (TTA) dissolved in 15ml ethanol to the two-necked bottle, add dropwise 0.75ml 2M sodium hydroxide aqueous solution, heat to 60°C, reflux for 1h; weigh 183.2mg ( 0.5mmol) europium trichloride hexahydrate (EuCl 3 ·6H 2 O) Dissolved in 0.5ml of water, added dropwise to the system, and refluxed at 70°C for 1 hour; dissolved 455mg (1.0mmol) p-diphenylphosphine triphenylamine oxide (TAPO) in 15ml of ethanol, added dropwise to the system, and white Precipitation, reflux reaction overnight. Add dichloromethane for extraction, and recrystallize light yellow and slightly pink solid from a mixed solution of water and ethanol.

[0102] Anal.Calcd.for C 84 h 60 EuF 9 N 2 o 8 P 2 S 3 : C, 59.12; H, 3.54; Eu, 8.91; N, 1.64; O, 7.50; S, 5.64; Found: C, 59.01; .

[0103] ESI-MS (m / z): 854 (M 2+ ,41%); 891 (M 2+ +CH 3 CN, 78%); 446 (TAPO + , 100%).

Embodiment 2

[0104] Example 2, Eu(TTA) 3 (NaDAPO) 2 Synthesis

[0105] Add 333.3mg (1.5mmol) thienyl trifluoromethyl acetylacetone (TTA) dissolved in 15ml ethanol to the two-necked bottle, add dropwise 0.75ml 2M sodium hydroxide aqueous solution, heat to 60°C, reflux for 1h; weigh 183.2mg ( 0.5mmol) europium trichloride hexahydrate (EuCl 3 ·6H 2 O) dissolved in 0.5ml of water, added dropwise to the system, and refluxed at 70°C for 1h; 495mg (1.0mmol) of N-naphthyl-p-diphenylphosphine diphenylamine oxide (NaDAPO) was dissolved in 15ml of ethanol, and added dropwise to In the system, a white precipitate appeared, and the reaction was refluxed overnight. Add dichloromethane for extraction, and recrystallize light yellow and slightly pink solid from a mixed solution of water and ethanol.

Embodiment 3

[0106] Embodiment 3, Eu(TTA) 3 (CPO) 2 Synthesis

[0107] Add 333.3mg (1.5mmol) thienyl trifluoromethyl acetylacetone (TTA) dissolved in 15ml ethanol to the two-necked bottle, add dropwise 0.75ml 2M sodium hydroxide aqueous solution, heat to 60°C, reflux for 1h; weigh 183.2mg ( 0.5mmol) europium trichloride hexahydrate (EuCl 3 ·6H 2 O) Dissolved in 0.5ml of water, added dropwise to the system, and refluxed at 70°C for 1h; dissolved 367mg (1.0mmol) of N-diphenylphosphine carbazole (CPO) in 15ml of ethanol, added dropwise to the system, and White precipitate was refluxed overnight. Add dichloromethane for extraction, and recrystallize light yellow and slightly pink solid from a mixed solution of water and ethanol.

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Abstract

The present invention belongs to the field of organic photoelectronic power material technology, and is especially organic photoelectronic RE material with adjustable carrier transport capacity and its preparation and application. The present invention synthesizes organic photoelectronic RE material with adjustable hole and electron implanting transmission capacity with organic phosphine oxide as neutral ligand, beta-diketone as anion ligand and RE ion as central metal ion and through compounding reaction. The material has unique double channel hole-electron structure introduced through the neutral ligand, and greatly improved and adjustable carrier implanting and transmitting performance. The organic photoelectronic RE material may find wide application in electroluminescence, organic laser, solar cell and other organic electronics fields.

Description

technical field [0001] The invention belongs to the technical field of organic photoelectric functional materials, and in particular relates to a class of photoelectric functional rare earth complexes with adjustable carrier transport capacity and a preparation method and application thereof. technical background [0002] Entering the information age, organic electronics, as an emerging subject, has achieved rapid development. The combination of organic electronics, organic chemistry, and material science has produced a number of new materials with excellent optoelectronic properties, covering many fields including optoelectronic information functional materials, organic photoconductivity, organic laser materials, organic magnets, and solar cells. As an important element in inorganic semiconductors, rare earth elements have shown vigorous vitality once they are introduced into the field of organic semiconductors, and they have shown outstanding advantages and broad developme...

Claims

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Application Information

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IPC IPC(8): C09K11/06H05B33/14
Inventor 黄维许辉
Owner FUDAN UNIV
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