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A kind of dye-sensitized solar cell photoanode and preparation method thereof

A solar cell and dye sensitization technology, applied in the field of dye-sensitized solar cell photoanode and its preparation, can solve the problems of no solar cell, no conductive material, difficult processing of stainless steel wire, etc., and achieve production cost Low cost, strong application value, low cost effect

Active Publication Date: 2016-11-16
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this invention, stainless steel wire or alloy wire is used as the conductive filamentary matrix, wherein stainless steel wire is not easy to process, it is difficult to make composite materials, and the cost of alloy wire is high and the weight is heavy.
It is also mentioned in this document that non-metallic conductive threads can also be used, such as carbon fibers, etc., and conductive material sheaths can also be wrapped outside the filamentary core made of non-conductive materials, but no specific suitable conductivity is given. materials, and how to prepare the photoanode and dye-sensitized solar cell

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] Embodiment 1-----Cu / Ni / ZnO / liquid

[0021] (1) Grind the conductive copper wire (200 μm in diameter), straighten it, put it in ethanol for ultrasonic cleaning, and let it dry naturally.

[0022] (2) Take by weighing 50g of nickel sulfate, 10g of nickel chloride and 9.5g of boric acid to prepare 250ml of electrolyte, and adjust the pH to 2.0 with sulfuric acid; use Cu wire as the cathode, graphite rod as the anode, and apply plating under 3.7V voltage, time for 4 minutes to obtain a Cu / Ni composite metal fiber, and the nickel layer is 10 nm.

[0023] (3) Prepare 0.1mol / L zinc acetate solution and 0.1mol / L hexamethylenetetramine solution, mix equal volumes, soak the composite metal fiber obtained in (2) in the above mixed solution for 2min, take it out and dry it, and then Place it on a heating plate at 200° C. for sintering for 6 minutes to obtain a Cu / Ni composite metal fiber whose surface is covered with a zinc oxide nanoparticle layer.

[0024] (4) Hang the composit...

Embodiment 2

[0028] Embodiment 2-----Cu / Ni / ZnO / solid state

[0029] (1) Grind the conductive copper wire (200 μm in diameter), straighten it, put it in ethanol for ultrasonic cleaning, and let it dry naturally.

[0030] (2) Take by weighing 50g of nickel sulfate, 10g of nickel chloride and 9.5g of boric acid to prepare 250ml of electrolyte, and adjust the pH to 2.0 with sulfuric acid; use Cu wire as the cathode, graphite rod as the anode, and apply plating under 3.7V voltage, time for 10 min to obtain Cu / Ni composite metal fibers. The thickness of the nickel layer is 10 μm.

[0031] (3) Prepare 1.0mol / L zinc acetate solution and 1.0mol / L hexamethylenetetramine solution, mix equal volumes, soak the composite metal fiber obtained in (2) in the above mixed solution for 6min, take it out and dry it, and then Place it on a heating plate at 200° C. for sintering for 2 minutes to obtain a Cu / Ni composite metal fiber whose surface is covered with a layer of zinc oxide nanoparticles.

[0032] (4...

Embodiment 3

[0037] Embodiment 3 -----cotton fiber / Ni / ZnO / liquid state

[0038] (1) The non-conductive cotton fiber filaments (10 μm in diameter) were pretreated, including degreasing with sodium hydroxide, roughening with hydrofluoric acid and ultrasonic cleaning with ethanol, and dried naturally.

[0039] (2) Weigh 0.3g of palladium chloride and dissolve it in 10mL of hydrochloric acid, then add 10mL of distilled water, add 12g of stannous chloride after the dissolution is complete to form A solution; dissolve 160g of sodium chloride in 1L of distilled water to form B solution; 50°C water bath Mix liquid A and liquid B, keep warm and activate for 1 hour to obtain colloidal palladium solution.

[0040](3) Put the cotton fiber thread obtained in (1) into a colloidal palladium solution, and activate-sensitize at 50° C. for 1 hour.

[0041] (4) After washing with distilled water, immerse the cotton fibers in aqueous hydrochloric acid solution with a volume ratio of 1:9, and degumming at roo...

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Abstract

The invention discloses a dye-sensitized solar cell photo anode. The photo anode does not comprise ITO and other transparent conductive oxide, surface nickel plating fibers are used as a conductive substrate, and titanium oxide and zinc oxide are used as semiconductor oxide. The preparation process of the photo anode comprises the steps that a metallic nickel layer is deposited on the surface of a metal wire or a non-metal wire, a titanium oxide and zinc oxide semiconductor film is then prepared on the surface of the metal wire or the non-metal wire, the metal wire or the non-metal wire is soaked in dye to be sensitized for 20 hours after being dried, and the dye-sensitized photo anode is obtained. The low-cost metallic nickel fiber photo anode can be manufactured through a simple full-wet process, the method is simple in operation, the requirement for equipment is not high, and production cost is relatively low; the dye-sensitized solar cell photo anode is firstly applied to fiber DSSC cells, and good photoelectric properties are obtained. A similar technology can be applied to other conductive substrates, and therefore a large class of photo anode substrate materials can be achieved.

Description

technical field [0001] The invention belongs to the field of dye-sensitized solar cells and its preparation, and in particular relates to a photoanode of a dye-sensitized solar cell and a preparation method thereof. Background technique [0002] Compared with other solar cells, dye-sensitized solar cells (DSSCs) have attracted people's attention rapidly because of their low manufacturing cost and simple manufacturing equipment. However, due to the limitations of the structure and process of traditional flat-panel cells, transparent conductive substrates account for a relatively high proportion of the current flat-panel traditional photovoltaic cell manufacturing costs, resulting in a high cost per unit of power generation, and it is difficult to reach the civilian level. The cost level of commodities limits the large-scale application of dye-sensitized solar cells. [0003] Flexible dye-sensitized solar cells have become popular due to the advantages of light weight, low co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/042H01G9/20
CPCY02E10/542Y02P70/50
Inventor 范兴冯海建刘作华陶长元杜军张晓英杨花花
Owner CHONGQING UNIV
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