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Composite thin film dye-sensitized solar cell and manufacturing method thereof

A technology of solar cells and dye sensitization, which is applied in the field of solar cells, can solve the problems that the open circuit voltage cannot be effectively improved, affects the improvement of short-circuit photocurrent, and affects the energy conversion efficiency, etc., so as to improve the photoelectric conversion efficiency, reduce losses, and improve collection of effects

Inactive Publication Date: 2019-04-12
徐州市凯诺机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the dye-sensitized solar cells of the related art are limited by the TiO 2 The problem of recombination between the anode and other interfaces affects the short-circuit photocurrent I of dye-sensitized solar cells SC The increase also makes the open circuit voltage V oc Failed to be effectively improved, thereby affecting its energy conversion efficiency η, which has become one of the bottlenecks in the application and promotion of dye-sensitized solar cells

Method used

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  • Composite thin film dye-sensitized solar cell and manufacturing method thereof
  • Composite thin film dye-sensitized solar cell and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0049] A method for making a composite thin film dye-sensitized solar cell, comprising the steps of:

[0050] Step S1: forming and preparing the Ba(Ti 0.9 sn 0.1 )O 3 film layer 121;

[0051] Specifically, the following steps are included:

[0052] Step S11: Prepare Ba(Ti 0.9 sn 0.1 )O 3 Nano powder;

[0053] Specifically, BaCO 3 、TiO 2 and SnO 2 As the raw material, weigh the raw material according to the stoichiometric ratio and put it into a ball mill, add an appropriate amount of absolute ethanol, and ball mill for 12 hours; the slurry after ball milling is filtered and dried, and put into a graphite mold and sintered in a sintering furnace, the sintering temperature at 1000°C, Ba(Ti 0.9 sn 0.1 )O 3 Nano powder;

[0054] Step S12: Ba(Ti 0.9 sn 0.1 )O 3 Thoroughly grind in absolute ethanol, and filter the grinding slurry;

[0055] Step S13: Add 0.5wt% PEG200 to the filtered slurry, grind it thoroughly, and ultrasonically disperse it for later use;

[0056...

Embodiment 2

[0069] A method for making a composite thin film dye-sensitized solar cell, comprising the steps of:

[0070] Step S1: forming and preparing the Ba(Ti 0.9 sn 0.1 )O 3 film layer 121;

[0071] Specifically, the following steps are included:

[0072] Step S11: Prepare Ba(Ti 0.9 sn 0.1 )O 3 Nano powder;

[0073] Specifically, BaCO 3 、TiO 2 and SnO 2 As the raw material, weigh the raw material according to the stoichiometric ratio and put it into a ball mill, add an appropriate amount of absolute ethanol, and ball mill for 12 hours; the slurry after ball milling is filtered and dried, and put into a graphite mold and sintered in a sintering furnace, the sintering temperature is 1050°C, and Ba(Ti 0.9 sn 0.1 )O 3 Nano powder;

[0074] Step S12: Ba(Ti 0.9 sn 0.1 )O 3 Thoroughly grind in absolute ethanol, and filter the grinding slurry;

[0075] Step S13: Add 0.5wt% PEG200 to the filtered slurry, grind it thoroughly, and ultrasonically disperse it for later use;

[...

Embodiment 3

[0089] A method for making a composite thin film dye-sensitized solar cell, comprising the steps of:

[0090]Step S1: forming and preparing the Ba(Ti 0.9 sn 0.1 )O 3 film layer 121;

[0091] Specifically, the following steps are included:

[0092] Step S11: Prepare Ba(Ti 0.9 sn 0.1 )O 3 Nano powder;

[0093] Specifically, BaCO 3 、TiO 2 and SnO 2 As the raw material, weigh the raw material according to the stoichiometric ratio and put it into a ball mill, add an appropriate amount of absolute ethanol, and ball mill for 12 hours; the slurry after ball milling is filtered and dried, and put into a graphite mold and sintered in a sintering furnace, the sintering temperature is 1100°C, and Ba(Ti 0.9 sn 0.1 )O 3 Nano powder;

[0094] Step S12: Ba(Ti 0.9 sn 0.1 )O 3 Thoroughly grind in absolute ethanol, and filter the grinding slurry;

[0095] Step S13: Add 0.5wt% PEG200 to the filtered slurry, grind it thoroughly, and ultrasonically disperse it for later use;

[0...

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Abstract

The invention discloses a composite thin film dye-sensitized solar cell. The dye-sensitized solar cell comprises a photoelectrode, a counter electrode which is arranged opposite to the photoelectrode at intervals, and an electrolyte which is arranged between the photoelectrode and the counter electrode in a filling manner; the photoelectrode comprises conductive glass and a semiconductor layer which is formed on the conductive glass and loaded with sensitized dye; the semiconductor layer comprises a Ba(Ti<0.9>Sn<0.1>)O<3> thin film layer and a doped TiO<2> thin film layer which are formed in a deposition manner in sequence; the Ba(Ti<0.9>Sn<0.1>)O<3> thin film layer is deposited on the surface of the conductive glass; and the doped TiO<2> thin film layer is doped with SnO<2>. The composite thin film dye-sensitized solar cell provided by the invention has the characteristics of high open-circuit voltage and high photoelectric conversion efficiency. The invention also provides a manufacturing method for the composite thin film dye-sensitized solar cell.

Description

【Technical field】 [0001] The invention relates to a solar cell, in particular to a composite thin-film dye-sensitized solar cell and a manufacturing method thereof. 【Background technique】 [0002] Dye-sensitized solar cells are a new type of solar cells. Compared with traditional silicon solar cells, they have become a new type of solar cells due to their advantages such as wide source of raw materials, low cost, and high theoretical conversion efficiency. [0003] Nanoporous oxide films as the semiconductor layer are the core part of dye-sensitized solar cells. The thin film material is coated on the conductive glass to form the anode of the battery, the dye absorbs sunlight, generates electronic transitions, and the electrons are transferred to the thin film material, and finally exported to form an electric current by the external circuit. In related technologies, thin film materials mainly focus on TiO 2 The research also includes other semiconductor oxides, such as Sn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/20H01G9/042H01G9/048
CPCY02E10/542
Inventor 李启云刘超莲
Owner 徐州市凯诺机械有限公司