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Method for directly preparing conductive poly (dibenzothiophene dioxide) film on conductive glass or platinum sheet surface

A technology of sulfur fluorene dioxide and conductive glass, which is applied in the direction of electrolytic coating, electrophoretic plating, coating, etc., can solve the problems of complicated separation and purification, time-consuming, poor material conductivity, cumbersome steps, etc., and achieve fast film formation and good conductivity The effect of high performance and optical performance, simple operation

Inactive Publication Date: 2009-10-14
JIANGXI SCI & TECH NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The material obtained by this method has poor electrical conductivity, high cost, cumbersome steps, complicated separation and purification, and time-consuming

Method used

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  • Method for directly preparing conductive poly (dibenzothiophene dioxide) film on conductive glass or platinum sheet surface
  • Method for directly preparing conductive poly (dibenzothiophene dioxide) film on conductive glass or platinum sheet surface

Examples

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Embodiment 1

[0015] A method for directly preparing conductive poly(sulfurene dioxide) film on the surface of conductive glass or platinum sheet, comprising the following steps:

[0016] 1. Electrochemical solution preparation, the monomer dithiofluorene dioxide (DBTO) was dissolved in boron trifluoride ether or a mixed solvent of boron trifluoride ether and trifluoroacetic acid (the volume ratio of the two was 10:1), and stirred evenly. Prepare an electrochemical solution in which the molar concentration of monomer dithiofluorene dioxide (DBTO) is 5-20 mmol / L;

[0017] 2. Electrochemical deposition, pour the prepared electrochemical solution into the installation with indium-tin metal oxide (ITO) conductive glass or platinum sheet as the working electrode, platinum sheet or platinum as the counter electrode, and Ag / AgCl as the reference electrode In the electrochemical reaction device, nitrogen gas was passed into the solution for 20 minutes to remove the dissolved oxygen in the solution....

Embodiment 2

[0020] Similar to Example 1, the difference is that the electrochemical polymerization method is a constant current method, and the current density is 1mA cm -2 The electrolytic polymerization takes 5000-60000s, and by controlling the length of time, poly(sulfurene dioxide) (PDBTO) with a thickness of 1 μm-100 μm can be obtained. The fluorescence emission wavelength of the PDBTO prepared by this method is about 460nm (the fluorescence quantum yield is not less than 0.08), and its conductivity measured by the four-probe method is greater than 10 -1 S / cm, thermal decomposition temperature greater than 450K.

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Abstract

The invention relates to a method, which uses an electrochemical deposition method, takes Ag / AgCl as a reference electrode, a platinum sheet or stainless steel as a counter electrode, conductive glass or a platinum sheet as a working electrode; the method uses a unitary system of boron trifluoride ether or the mixed solvent of boron trifluoride ether and trifluoroacetic acid as an electrolytic generating system and directly electrodeposits solution formed by using monomer sulfur dioxide fluorine as raw material on the conductive glass or the platinum sheet so as to obtain the poly (dibenzothiophene dioxide) film. The process has simple method and fast film forming speed; the film has good photoelectric properties and thermal stability, is a novel blue light-emitting material and can be used for assembling photoconducting devices.

Description

technical field [0001] The invention relates to a method for directly preparing a conductive poly(sulfurene dioxide) film on the surface of a conductive glass or a platinum sheet. Background technique [0002] Polyfluorene and its derivatives have unique blue light-emitting properties, and have attractive prospects in the field of optoelectronic devices such as organic electroluminescence. Dithiofluorene dioxide (PDBTO) is a derivative of fluorene, and its polymer will have good electrical conductivity and optical properties at the same time. The sulfone group (-SO 2 ) can significantly increase its electron affinity, making it a good monomer for preparing n-type semiconductors. However, the sulfone group (-SO 2 ) The strong electron-withdrawing effect makes the electrochemical polymerization of sulfur fluorene dioxide difficult in conventional solvents, such as acetonitrile, dichloromethane, chloroform, tetrahydrofuran and the like. [0003] The methods disclosed in exi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D13/08
Inventor 卢宝阳徐景坤祝丹华刘聪聪岳瑞瑞
Owner JIANGXI SCI & TECH NORMAL UNIV