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Bi-component organic room-temperature phosphorescent material and preparation method thereof

A room-temperature phosphorescence and two-component technology, which is applied in the fields of luminescent materials, organic chemistry, chemical instruments and methods, etc., can solve the problems of high energy, wide bandgap and difficult realization of long afterglow of blue light, and achieve low raw material cost and quantum efficiency. High, long luminous life effect

Active Publication Date: 2021-06-11
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the long afterglow of organic blue light is not easy to achieve because of its high energy and wide bandgap.

Method used

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  • Bi-component organic room-temperature phosphorescent material and preparation method thereof
  • Bi-component organic room-temperature phosphorescent material and preparation method thereof
  • Bi-component organic room-temperature phosphorescent material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The organic room temperature phosphor material (I-II) was prepared in this example.

[0042] 1 g of trimeric acid (i) was placed in a mortar, grinded for half an hour, weighed 10 mg of benzene boric acid (II) in 10 ml deionized water, stirred overnight to dissolution. Take 200 mg of polishing trimeric acid in 10 ml of centrifuge tube, 1 ml of aqueous phenylel boric acid, dramatic oscillating, ultrasound, centrifugally remove the upper aqueous solution, placed in a vacuum oven in a vacuum oven in a vacuum oven, to obtain an organic chamber temperature phosphor material (I -Ii).

[0043] The structure is as follows:

[0044]

[0045] Such as Figure 9 As shown in the infrared spectrum of the organic chamber phosphor material (I-II) and the raw material I, II, the raw material I, II can be seen as compared with the organic chamber temperature phosphor material (I-II), it can be seen that organic room temperature phosphor material (I-II) It is a blend, and there is no chemical...

Embodiment 2

[0047] The organic chamber thermophosphate (I-III) was prepared in this example.

[0048] 1 g of trimer (I) was placed in a mortar, grinded for half an hour, weighed 10 mg of 1,3,5-benzene dioboric acid (III) in 10 ml of deionized water, stirred overnight to dissolution. Take 200 mg of polishing trimeric acid in 10 ml of centrifuge tube, add 1 ml of 1,3,5-phenylene boric acid solution, dramatic oscillating, ultrasonic solution, centrifugally remove the upper aqueous solution, place in a vacuum oven in a vacuum oven in a vacuum oven in vacuum oven, to obtain organic room temperature Phosphate (I-III).

[0049] The structure is as follows:

[0050]

Embodiment 3

[0052] The organic chamber thermophosphate (I-IV) is prepared in this example.

[0053] 1 g of trimeric acid (i) was placed in a mortar, grinded for half an hour, weighed 10 mg of 4-cyanobree boric acid (IV) in 10 ml deionized water, stirred overnight to dissolution. Take 200 mg of ground trimeric acid in 10 ml of centrifuge tube, a aqueous solution of 1 ml of cyanobyl boric acid, dramatically shock, ultrasonic, centrifugally, to remove the upper aqueous solution, placed in a vacuum oven in a vacuum oven, to obtain an organic chamber temperature phosphor material ( I-IV).

[0054] The structure is as follows:

[0055]

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PUM

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Abstract

The invention discloses a bi-component organic room-temperature phosphorescent material and a preparation method thereof, the bi-component organic room-temperature phosphorescent material is doped in a host-guest form, the synthesis steps are simple, the cost is low, the stability is good, under a dry condition, the bi-component organic room-temperature phosphorescent material has an ultra-long luminescence life, after being excited by a 254nm ultraviolet light source and under a dark condition, the bi-component organic room-temperature phosphorescent material can still continuously emit light, and after water is added, the luminescence quantum efficiency is improved.

Description

Technical field [0001] The present invention relates to organic light-emitting materials, and more particularly to an organic phosphorescent material and a preparation method thereof. Background technique [0002] Organic light-emitting materials typically contain fluorescent materials, phosphorescent materials, thermally activated delayed fluorescent materials, and organic phosphorescent materials as one of the important components, and its importance is self-evident. The phosphorescent material itself is overcome the spinning resistance limit, which is from triple excited static excitors to the ground transition of the radiation, and the life of milliseconds or even seconds. Applicable to photoluminescence, electroluminescence, etc., the phosphorescent material can eliminate fluorescent background interference for advanced anti-counterfeiting and encryption areas, and highly efficient phosphorescent OLED devices can also be prepared. [0003] An organic chamber thermophosphate ...

Claims

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Application Information

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IPC IPC(8): C07D251/32C07F5/02C07D213/80C09K11/06
CPCC07D251/32C07F5/025C07D213/80C09K11/06C09K2211/1059C09K2211/1029
Inventor 陈润锋张景瑜史毓琦黄维
Owner NANJING UNIV OF POSTS & TELECOMM
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