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

A kind of iridium-containing polymer red light material and its synthesis method

A synthesis method and polymer technology, applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of not designing narrow bandgap metal complexes, etc., and achieve the effects of good mechanical properties, good film-forming performance, and good solubility

Inactive Publication Date: 2016-06-15
NINGBO UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the synthesized iridium-containing polymer phosphorescent materials are mainly yellow and green light materials, while the research on red light materials still has great deficiencies, mainly due to the lack of design of suitable narrow bandgap metal complexes to capture charges to generate enough light. Red-shifted so that the polymer emits saturated red light

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 kind of iridium-containing polymer red light material and its synthesis method
  • A kind of iridium-containing polymer red light material and its synthesis method
  • A kind of iridium-containing polymer red light material and its synthesis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Measure 10mL of toluene (10min ultrasonic vibration with nitrogen gas) and add it into a 25mL three-neck flask, weigh bis-[(4-bromo-thiophene)-phenylpyridine]-β-heptanedione iridium complex monomer (0.0036g , 0.00358mmol), 9,9-dioctyl-2,7-dibromofluorene (0.0962g, 0.175mmol), 9,9-dioctylfluorene-2,7-diboronic acid bis(1,3- Propylene glycol) ester (0.1g, 0.179mmol), Pd(PPh 3 ) 4 (0.0062g, 0.00537mmol) into a three-necked flask, after removing the air in the system, add 1mL tetraethylammonium hydroxide solution, under the protection of nitrogen, react at 100°C in the dark for 72h, add 9,9-dioctylfluorene -2,7-diboronic acid bis(1,3-propanediol) ester (0.005g, 0.00895mmol) (dissolved in 1.5mL toluene) was continued for 12h, and 2mL of bromobenzene was added to continue the reaction for 12h. After the reaction, the palladium catalyst in the reaction was removed by filtration, and most of the solvent was evaporated with a rotary evaporator, the remaining solution was settl...

Embodiment 2

[0017] Measure 10mL of toluene (10min ultrasonic vibration with nitrogen) and add it into a 25mL three-neck flask, weigh bis-[(4-bromo-thiophene)-phenylpyridine]-β-heptanedione iridium complex monomer (0.0072g , 0.00716mmol), 9,9-dioctyl-2,7-dibromofluorene (0.0942g, 0.172mmol), weighed 9,9-dioctylfluorene-2,7-diboronic acid bis(1, 3-propanediol) ester (0.1g, 0.179mmol), Pd(PPh 3 ) 4 (0.0062g, 0.00537mmol) into a three-necked flask, after removing the air in the system, add 1mL tetraethylammonium hydroxide solution, under the protection of nitrogen, react at 90°C in the dark for 60h, add 9,9-dioctylfluorene-2 , 7-diboronic acid bis(1,3-propanediol) ester (0.005g, 0.00895mmol) (dissolved in 1.5mL toluene) was continued for 6h, and 2mL of bromobenzene was added to continue the reaction for 6h. After the reaction, the palladium catalyst in the reaction was removed by filtration, and most of the solvent was evaporated with a rotary evaporator, the remaining solution was settled ...

Embodiment 3

[0019] Measure 10mL of xylene (10min ultrasonic vibration with nitrogen gas) into a 25mL three-necked flask, weigh bis-[(4-bromo-thiophene)-phenylpyridine]-β-heptanedione iridium complex monomer (0.0180 g, 0.0179mmol), 9,9-dioctyl-2,7-dibromofluorene (0.0889g, 0.162mmol), weighed 9,9-dioctylfluorene-2,7-diboronic acid bis(1 , 3-propanediol) ester (0.1g, 0.179mmol), Pd(PPh 3 ) 4 (0.0062g, 0.00537mmol) into the bottle, remove the air in the system, add 1mL tetraethylammonium hydroxide solution, under the protection of nitrogen, react at 105°C in the dark for 64h, add 9,9-dioctylfluorene-2 , 7-diboronic acid bis(1,3-propanediol) ester (0.005g, 0.00895mmol) (dissolved in 1.5mL toluene) was continued for 12h, and 2mL of bromobenzene was added to continue the reaction for 12h. After the reaction, the palladium catalyst in the reaction was removed by filtration, and most of the solvent was evaporated with a rotary evaporator, the remaining solution was settled in methanol, the drie...

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
emission peakaaaaaaaaaa
emission peakaaaaaaaaaa
emission peakaaaaaaaaaa
Login to View More

Abstract

The invention discloses an electrophosphorescent material of terpolymer of fluorene, pyridinethiophene and iridium complex, which is characterized in that the structural formula is as follows. The present invention adopts bis-[(4-bromo-thiophene)-phenylpyridine]-β-heptanedione iridium complex monomer and 9,9-dioctyl-2,7-dibromofluorene and 9,9 -Dioctylfluorene-2,7-diboronic acid bis(1,3-propanediol) three monomers are copolymerized to obtain a conjugated polymer containing iridium complexes in the main chain, which is a highly efficient and stable Saturated red light material, in addition, due to the introduction of β-heptanedione ligand and dioctylfluorene unit, the phosphorescent material also has the characteristics of good solubility and good film-forming performance, which can be achieved by spin coating, coating and other methods To make devices, the processing technology is simple, the mechanical properties are good, and it is easy to realize large-area and flexible displays; .

Description

technical field [0001] The invention relates to a polymer luminescent material and a synthesis method thereof, in particular to a novel iridium-containing polymer red light material and a related synthesis method thereof. technical background [0002] Under the action of an electric field, the phenomenon that organic materials directly convert electrical energy into light energy is called organic electroluminescence (EL). Since Tang et al. reported a double-layer organic electroluminescent device with high brightness and low operating voltage in 1987, thin-film electroluminescent devices have been developed rapidly, and organic electroluminescent materials have attracted great attention due to their excellent performance. focus on. Among them, iridium complex luminescent materials have become the most studied heavy metal complex luminescent materials because of their short triplet lifetime and good phosphorescence performance. Due to the shortcomings of small molecule irid...

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): C09K11/06C08G61/12
Inventor 徐清易思利缴春明李兵军王清琪
Owner NINGBO UNIV