Dye-sensitized solar cell and method of manufacturing same
A technology for solar cells and pigment sensitization, which is applied in the direction of electrolytic capacitors, final product manufacturing, chemical instruments and methods, etc., can solve the problems of high adsorption, insufficient resources, dissolution of ruthenium complex pigments, etc., to improve adhesion, Realize the effect of polychromaticity and low-cost design
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Embodiment 1
[0120] (Zinc Oxide Porous Layer Formation Process)
[0121] Using a PEN film (manufactured by Teijin Dupont, 200 μm in thickness) as a transparent resin substrate, an ITO transparent electrode was formed thereon by a DC sputtering method. The conditions of the DC sputtering method were as follows: the flow rate of argon gas was 50 sccm, the flow rate of oxygen gas was 1.5 sccm, the voltage was 370 V, the current was 2 A, and the film was formed for 20 minutes. In addition, the surface resistance of the obtained ITO transparent electrode was 21Ω / □.
[0122] Next, after mixing and dispersing zinc oxide microparticles (manufactured by Tayca, MZ-500, with an average particle size of 25nm) in terpineol as a solvent and ethyl cellulose as a binder to prepare a paste, screen-print on ITO transparent on the electrode, allowing the solvent to dry. Here, screen printing was performed in a pattern in which 15 circles of φ6 mm were arranged, and the solvent was dried at 100° C. for 30 m...
Embodiment 2
[0138] In Example 1 (sensitizing dye loading step), the indoline skeleton-containing dye 2 (D131, manufactured by Chemicrea Co., Ltd., absorption peak at 440 nm) represented by the following formula (5) was used instead of the indoline-containing A dye-sensitized solar cell was produced in the same manner as in Example 1 except for the dye 1 having an indolene skeleton.
[0139]
Embodiment 3
[0141] In Example 1 (sensitizing dye loading step), cyanine-based organic dye 1 and indoline-skeleton-containing dye 1 were dissolved in a 1:1 mixed solvent of tert-butanol and acetonitrile to prepare cyanine After a mixed solution of 0.2 mM organic pigment 1 and 0.2 mM pigment 1 containing an indoline skeleton, the substrate on which the zinc oxide porous layer was formed was immersed in the mixed solution for 120 minutes to form a porous zinc oxide layer. A dye-sensitized solar cell was produced in the same manner as in Example 1 except that the sensitizing dye was loaded thereon.
[0142] (Confirmation of the loading state of the sensitizing dye)
[0143] Confirmation of the supported state of the sensitizing dye was carried out in the same manner as in Example 1.
[0144] As a result, in the zinc oxide porous layer obtained in Example 3, since the chromaticity difference (Δa*) was -16.95, the chromaticity (a*) was remarkably reduced, and thus the detachment phenomenon of ...
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