A kind of highly conductive polymer composite electrode and preparation method thereof
A composite electrode and polymer technology, applied in semiconductor/solid-state device manufacturing, circuits, photovoltaic power generation, etc., can solve problems such as inability to achieve large-scale use, energy consumption, and harsh conditions
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[0038] The invention discloses a highly conductive polymer composite electrode and a preparation method thereof. The composite electrode is composed of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate), namely PEDOT:PSS. By using dimethyl sulfoxide (DMSO) to spin wash the PEDOT:PSS film, it is used to remove part of the PSS component in the film, and at the same time increase the crystallization of the PEDOT component, thereby improving the conductivity of the film. Specific steps are as follows:
[0039] (1) Clean and dry the substrate, which can be glass or flexible substrate;
[0040] (2) Place the above-mentioned substrate on the bracket of the film coating machine, apply the aqueous solution of PEDOT:PSS evenly on the substrate, and spin-coat to form a film; wherein, the concentration of the aqueous solution of PEDOT:PSS is 0.1%-50%, The weight ratio of PEDOT to PSS is 50:1-1:50;
[0041] (3) Place the workpiece prepared in step (2) on the bracket of the coating ...
Embodiment 1
[0064] Preparation of a composite electrode with high conductivity:
[0065] (1) Clean the glass substrate (3 cm × 3 cm in size) with lotion, and then use deionized water, acetone, and isopropanol to sonicate for 10 minutes each, and then put it in a vacuum oven at 60 degrees Celsius for drying Dry;
[0066] (2) Place the above-mentioned substrate on the bracket of the coating machine, uniformly coat the aqueous solution of PEDOT:PSS on the substrate, and spin-coat to form a film at a speed of 1000 revolutions per minute to obtain a film thickness of 110 nanometers. The concentration of the PEDOT:PSS aqueous solution is 1.5%, and the weight ratio of PEDOT and PSS is 1:2.5;
[0067] (3) Place the workpiece prepared in step (2) on the bracket of the coating machine, apply 100 microliters of DMSO evenly on the PEDOT:PSS film, let it stand for 2 minutes, spin wash, and remove Partial PSS in the film, meanwhile, the film thickness is reduced to 80 nm;
[0068] (4) Place the proc...
Embodiment 2
[0071] Preparation of a composite electrode with high conductivity:
[0072] (1) Clean the glass substrate (3 cm × 3 cm in size) with lotion, and then use deionized water, acetone, and isopropanol to sonicate for 10 minutes each, and then put it in a vacuum oven at 60 degrees Celsius for drying Dry;
[0073] (2) above-mentioned substrate is placed on the bracket of film coating machine, the aqueous solution of PEDOT:PSS is coated on the substrate evenly, spin-coats and forms film, and the rotating speed is 1000 revolutions per minute, and the obtained film thickness is 110 nanometers; . The concentration of the PEDOT:PSS aqueous solution is 1.5%, and the weight ratio of PEDOT and PSS is 1:2.5;
[0074] (3) Place the workpiece prepared in step (2) on the bracket of the coating machine, apply 100 microliters of DMSO evenly on the PEDOT:PSS film, let it stand for 2 minutes, spin wash, and remove Partial PSS in thin films with reduced film thickness down to 80 nm;
[0075] (4)...
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