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Preparation method of triphenylethylene derivative luminescent film

A technology of light-emitting film and triphenylene, which is applied in the manufacture of semiconductor/solid-state devices, electrolytic coatings, electrophoretic plating, etc., can solve the problems of difficulty in preparing light-emitting films with high performance, and achieve high light-emitting efficiency, simple operation and low production cost. Effect

Inactive Publication Date: 2013-11-20
SOUTH CHINA NORMAL UNIVERSITY
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  • Claims
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Problems solved by technology

[0005] The existing electrochemical polymerization method is difficult to prepare a luminescent film with satisfactory performance

Method used

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  • Preparation method of triphenylethylene derivative luminescent film
  • Preparation method of triphenylethylene derivative luminescent film
  • Preparation method of triphenylethylene derivative luminescent film

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Embodiment Construction

[0027] The electrochemical preparation method of the luminescent thin film of the present invention is completed in the electrolytic cell, and the structural schematic diagram of the electrolytic cell is as follows: figure 1 As shown, the electrolytic cell is composed of a working electrode, an auxiliary electrode, a reference electrode, and an electrolyte solution.

[0028] The working electrode used is a redox inert electrode, which can work stably in the region of the measured potential. The electrode materials used can be metal electrodes such as gold, platinum, lead, and titanium, or non-metal electrodes such as graphite and glassy carbon, and ITO translucent optical electrodes.

[0029] The main function of the auxiliary electrode is to form a loop with the working electrode, so as long as it is an electrode that is redox inert and does not react with the medium in the solution, such as platinum, lead, gold, titanium, etc., this experiment uses a titanium electrode as th...

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Abstract

The invention discloses a preparation method of a triphenylethylene derivative luminescent film. The preparation method comprises the following steps of: (1), dissolving carbazole triphenylethylene derivative monomer with an aggregation-induced emission effect in an electrolyte solution of an electrolytic tank; (2), starting up the electrolytic tank for carrying out electrolysis, so that the monomer is polymerized into a film, wherein in the electrolysis process, the voltage range of positive potential of a working electrode is 0.8V-1.6V, the range of the negative potential is (-)1.0V-0V; and the signal waveform is sine wave or triangular wave; (3), taking out the film after electrolytic polymerization is completed, cleaning and drying to obtain the luminescent film. The luminescent film which is prepared by the preparation method disclosed by the invention has a smooth surface, surface roughness of smaller than 3nm and can be used for solving a problem that the conventional electro-polymerization film is extremely large in surface roughness; and the obtained film has good thermal stability, the initial decomposition temperature of 376 DEG C and higher luminous efficiency. The preparation method of the triphenylethylene derivative luminescent film disclosed by the invention is simple to operate, not only capable of effectively removing impurity components, but also lower in production cost.

Description

technical field [0001] The invention relates to a preparation method of a new material, in particular to an electrochemical polymerization method of a triphenylethylene derivative luminescent film. Background technique [0002] Organic light-emitting diodes (OLEDs) do not require a backlight source, have a wide range of material choices, are light in weight, and can be made into flexible and bendable devices. They have promising prospects in the fields of display and lighting, and have become a hot spot in current research and development. Organic light-emitting materials are the core materials of OLEDs, and they are also the key materials and bottlenecks for the large-scale industrialization of OLEDs. [0003] As an OLED luminescent material, it must be used in a solid thin film state, but when the concentration of most fluorescent substances increases, especially after being made into a thin film, due to the formation of intramolecular or intermolecular excimer association...

Claims

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Application Information

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IPC IPC(8): C08G61/12C25D13/08H01L51/54
Inventor 刘聪石光杨嘉健张崧罗海媛
Owner SOUTH CHINA NORMAL UNIVERSITY
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