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Dye-sensitized solar cell with metal oxide layer containing metal oxide nanoparticles produced by electrospinning and method for manufacturing same

A solar cell, oxide layer technology, applied in secondary cells, final product manufacturing, sustainable manufacturing/processing, etc., to achieve high porosity and improve photoelectric conversion efficiency

Inactive Publication Date: 2011-08-17
KOREA INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008]In addition, if the porosity is increased by reducing the density of the porous titanium oxide layer, the specific surface area will increase, and the amount of dye adsorption will increase accordingly, but due to the interparticle resistance increases, the charge transport efficiency decreases, and if the density of the titanium oxide layer is increased, the porosity is decreased, and the amount of dye adsorption decreases
[0009] In addition, conventional titanium oxide nanoparticles are generally used, because each crystal of the polycrystal constituting the nanoparticle is small, the crystal plane is irregular, and the electron transport ability is reduced. not sufficiently conductive
[0010] Therefore, to maximize the light absorption of solar cells with a titanium oxide layer composed of conventional titanium oxide nanoparticles, thereby greatly improving the photoelectric conversion efficiency, and limitation

Method used

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  • Dye-sensitized solar cell with metal oxide layer containing metal oxide nanoparticles produced by electrospinning and method for manufacturing same
  • Dye-sensitized solar cell with metal oxide layer containing metal oxide nanoparticles produced by electrospinning and method for manufacturing same
  • Dye-sensitized solar cell with metal oxide layer containing metal oxide nanoparticles produced by electrospinning and method for manufacturing same

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0124] The electric spinning is used image 3 The electric spinning device shown uses the transparent conductive conductive base plate (10cm × 10cm size) of the FTO as the GROUNDED Receiver. The metal needle that is connected to the adjustable pump that can be adjusted as the pump is used as a positive pole.The voltage.Adjust the spitting speed of the spinning fluid to 10 μL / minute, 20 μL / minute, 30 μl / minute, 50 μl / minute, 100 μL / minute, and 200 μl / minute.PVAC / TIO on the transparent conductive substrate 2 Composite fiber layer.PVAC / TIO at different spitting speed 2 The average diameter of the fiber layer of the composite fiber layer is shown in Table 2 below.

[0125] 【Table 2】

[0126]

[0127] The above PVAC / TIO that will accumulate on the transparent conductive substrate through electric wires 2 The composite fiber layer was pressed at a pressure of about 1.5 tons at a pressure of about 10 minutes at 120 ° C. After 30 minutes of 500 ° C, the threshold titanium oxide ...

Embodiment 2

[0135] 【table 5】

[0136]

[0137] The light current density (JSC), voltage (VOC), filling factor (FF), and photoelectric conversion efficiency (η) with the substrate made of the titanium layer of the titanium oxide layer, see Table 6 below.

[0138] 【Table 6】

[0139] Embodiment

[0140] [Example 3]

Embodiment 3

[0142] [Example 4]

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Abstract

This invention refers to a dye-sensitized solar cell with metal oxide layer containing metal oxide nanoparticles produced by electrospinning and method for manufacturing same. The inventive dye-sensitized solar cell having improved photoelectric conversion characteristic comprises a metal oxide layer with high porosity and dye adsorption amount which is composed of dye-adsorbed metal oxide nanoparticles, wherein the metal oxide nanoparticles are formed by electrospinning a mixed solution of a metal oxide precursor and a polymer into ultrafine composite fibers, and thermally compressing and sintering the ultrafine composite fibers.

Description

Technical field [0001] The present invention involves a dye -sensitized solar cell and its manufacturing method by increasing the pore rate and dye adsorption of the metal oxide layer at the same time. Background technique [0002] Since the Glanel Research Group in Switzerland has published dye -sensitized solar cells for the first time (B.ON, M.Gratzel, Nature 353, 737 (1991)), related research has been widely developed. [0003] The dye-sensitive solar cells developed by Gratzel et al. As shown in the figure, the sensitivity dyes of the Electron-Hole Pair are used by absorbable and visible optical electron-Hole PairOxide semiconductor electrode.Specifically, the electrons that are inspired by the visible light in the dye to the N -type semiconductor -titanium oxide particles, and the ″ I in the fluid electrolyte - / I 3 - The electrochemical oxidation-restore reaction to regenerate dyes to generate current. [0004] The production cost of such dye -sensitive solar cells has t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/20H01G9/042H01M10/36H01M14/00H01L31/04H01L31/18B82Y20/00
CPCH01G9/2031Y02E10/542H01G9/2059Y02P70/50H01L31/04H01L31/18
Inventor 赵城戊金东英张盛然朴南圭李秉洪
Owner KOREA INST OF SCI & TECH
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