Conductive polymer pedot organic dispersion system and preparation method thereof
A dispersion system and organic technology, applied in the field of conductive polymer PEDOT organic dispersion system and its preparation, can solve problems such as restricting practical applications, and achieve the effects of promoting application and research, good film-forming properties, and easy volatilization
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Embodiment 1
[0038] Embodiment 1: the preparation of PEDOT organic dispersion liquid:
[0039] Under the protection of argon inert atmosphere, weigh 0.35g Fe 2 (SO 4 ) 3 And 1g p-toluenesulfonic acid monohydrate (p-TSA, as doping agent) is dissolved in the mixed organic solvent system of propylene carbonate (PC) and ethanol, wherein the volume ratio of PC and ethanol is 1:3; Then Add 0.2g polyvinylpyrrolidone (PVP, Mw=8,000) as a surfactant, fully stir to dissolve; finally add 0.1g EDOT monomer, stir and react at 80°C for 24h to obtain PEDOT organic dispersion, including strong polarity and high dielectric strength The organic solvent and PEDOT of electric constant, also include organic strong acid or salt conductive dopant, surfactant in addition, the content of PEDOT is 0.24wt.%, the content of organic strong acid or salt conductive dopant is 2.41wt.% , the amount of surfactant is 0.5wt.% of the total mass of the organic solvent. The prepared PEDOT organic dispersion was coated on a ...
Embodiment 2
[0043] Referring to Example 1, the difference is that: the added polyvinylpyrrolidone has a molecular weight of 58,000. The prepared PEDOT organic dispersion was coated on a glass slide to test its film-forming properties, and its electronic conductivity was measured with an RTS-9 four-probe tester. The film-forming properties and electronic conductivity were as follows: figure 1 and shown in Table 1. For particle size see figure 2 .
Embodiment 3
[0045] Referring to Example 1, the difference is that the added polyvinylpyrrolidone has a molecular weight of 1300,000. The prepared PEDOT organic dispersion was coated on a glass slide to test its film-forming properties, and its electronic conductivity was measured with an RTS-9 four-probe tester. The film-forming properties and electronic conductivity were as follows: figure 1 and shown in Table 1.
[0046] Table 1 prepares PEDOT organic dispersion liquid for adding different molecular weight PVP as stabilizer
[0047]
[0048] Depend on figure 1 As can be seen from Table 1, using polyvinylpyrrolidone (PVP, M w =8000, 58000 and 1300000) as a stabilizer, PEDOT organic dispersion film-forming ( figure 1 (b-d)) have been greatly improved, the connection between particles becomes better, and can be spread into a layer of conductive polymer film on the glass sheet, without obvious film shrinkage and fracture between particles, which is better than that without adding PVP ...
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