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Preparation method of anthracene-doped polyphenyl acetylene-graphene OLED (organic light emitting diode) photoelectric particles

A poly-p-phenylene vinylene and graphene technology, applied in circuits, electrical components, electric solid devices, etc., can solve the problems of increased device series resistance, influence of electronic transport performance, and electronic defect obstruction, etc., to achieve long life and reduce fluorescence. Quenching, Inexpensive Effects

Active Publication Date: 2017-06-13
台州科金中高技术转移有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at the same time, because it is not easy to crystallize, the transport performance of electrons in the material is affected. When electrons are transported at the HOMO energy level, the hindrance of electronic defects increases, resulting in an increase in the series resistance of the device and higher Joule heat. Wasted power consumption in the process of electroluminescence
[0006] According to the above, although the devices prepared by using small anthracene molecules as the light-emitting unit have a simple device structure, this type of compound also has good thermal stability and high luminous efficiency, but due to the inherent defects of small molecules that are easy to crystallize, the life of the device is reduced. shorter

Method used

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  • Preparation method of anthracene-doped polyphenyl acetylene-graphene OLED (organic light emitting diode) photoelectric particles
  • Preparation method of anthracene-doped polyphenyl acetylene-graphene OLED (organic light emitting diode) photoelectric particles

Examples

Experimental program
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Effect test

Embodiment 1

[0029] (1) Mix and disperse 8 parts by mass of flake graphite powder, 1 part by mass of graphene quantum dots and 61 parts by mass of poly(p-phenylene vinylene) in a high-speed mixer at a speed of 1200 rpm for 10 minutes to obtain a premix;

[0030] (2) Add 30 parts by mass of organic compounds containing anthracene groups and their derivatives into toluene to prepare a solution of organic compounds containing anthracene groups at a concentration of 0.5 mol / L, and mix the premix obtained in step (1) with The organic matter solution of the anthracene group is mixed, stirred, and the stirring speed is 600 rpm, poured into a square or cylindrical mold after being fully stirred, and left to stand until there is no bubble, to obtain a mixed solution;

[0031] (3) The mixed solution in step (2) is subjected to low-temperature freezing treatment, and the temperature of the low-temperature freezing treatment is set to -25°C, and the frozen solid mixture is added to a grinder for grindi...

Embodiment 2

[0034] (1) 8 parts by mass of dense crystalline graphite powder, 0.5 parts by mass of graphene oxide quantum dots and 65 parts by mass of poly(p-phenylene vinylene) were mixed and dispersed in a high-speed mixer at a speed of 600 rpm for 25 minutes to obtain a premix;

[0035] (2) Add 26.5 parts by mass of organic substances containing anthracene groups and their derivatives into chloroform to prepare a solution of organic substances containing anthracene groups at a concentration of 0.7mol / L, and mix the premix obtained in step (1) with The organic matter solution of the anthracene group is mixed, stirred, and the stirring speed is 600 rpm, poured into a square or cylindrical mold after being fully stirred, and left to stand until there is no bubble, to obtain a mixed solution;

[0036] (3) The mixed solution in step (2) is subjected to low-temperature freezing treatment, and the temperature of the low-temperature freezing treatment is set to -20°C. After the frozen solid mixt...

Embodiment 3

[0039] (1) 10 parts by mass of dense crystalline graphite powder, 3 parts by mass of graphene oxide quantum dots and 37 parts by mass of poly(p-phenylene vinylene) were mixed and dispersed in a high-speed mixer at a speed of 800 rpm for 20 minutes to obtain a premix;

[0040] (2) Add 50 parts by mass of organic compounds containing anthracene groups and their derivatives into chloroform to prepare a solution of organic compounds containing anthracene groups at a concentration of 0.3mol / L, and mix the premix obtained in step (1) with The organic matter solution of the anthracene group is mixed, stirred, and the stirring speed is 400 rpm, poured into a square or cylindrical mold after being fully stirred, and left to stand until there is no bubble, to obtain a mixed solution;

[0041] (3) The mixed solution in step (2) is subjected to low-temperature freezing treatment, and the low-temperature freezing treatment temperature is set to -30°C, and the frozen solid mixture is added t...

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Abstract

The invention provides a preparation method of anthracene-doped polyphenyl acetylene-graphene OLED photoelectric particles. The method comprises grinding anthracene groups and polyphenyl acetylene under frozen conditions, during the grinding process, introducing graphene conductive agent, taking graphene as an external skeleton to form a non-coplanar scroll structure to reduce fluorescence quenching. Therefore, the high fluorescence quantum efficiency can be kept and meanwhile, the performance of the polyphenyl acetylene can be effectively regulated. The preparation method of the an anthracene-doped polyphenyl acetylene-graphene OLED photoelectric particles overcomes the intrinsic defect of crystallization proneness of small molecules such as anthracene serving as light emitting units in the prior art, increases the service life and the thermal stability of devices and is simple in synthetic processes of composite materials, low in cost of raw materials and capable of meeting the requirements of industrialized development.

Description

technical field [0001] The invention relates to the field of organic photoelectric materials, in particular to a method for preparing anthracene-doped poly(p-phenylene vinylene-graphene) OLED photoelectric particles. Background technique [0002] Organic Light Emitting Diode (OLED) is a display technology developed and patented by Kodak that uses organic polymeric materials as the semiconductor material in light emitting diodes. Polymeric materials can be natural or synthetic, and can be large or small in size. OLED display technology is widely used in mobile phones, digital cameras, DVD players, personal digital assistants, notebook computers, car audio and televisions and other fields. OLED has the characteristics of energy saving, fast response, stable color, strong environmental adaptability, no radiation, long life, light weight and thin thickness. Due to the rapid development of optoelectronic communication and multimedia fields in recent years, organic optoelectroni...

Claims

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Application Information

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IPC IPC(8): H01L51/50H01L51/54H01L51/56
CPCH10K85/615H10K50/11H10K50/14H10K2102/00H10K71/00
Inventor 陈庆曾军堂王镭迪
Owner 台州科金中高技术转移有限公司
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