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Novel dye-sensitized solar cell photoanode

A technology of solar cells and dye sensitization, which is applied in the field of dye-sensitized solar cells, can solve problems such as reducing the recombination probability, achieve the effects of reducing preparation costs, reducing preparation difficulty, and simplifying the preparation process

Inactive Publication Date: 2013-04-10
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are many factors that limit the photoelectric conversion efficiency of photoanodes, but the following two factors cannot be ignored: ① about 50% of the near-infrared light in the solar spectrum is not fully utilized by photoanodes; ② how to provide electrons with fast Transmission channel, thereby reducing the chance of recombination

Method used

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  • Novel dye-sensitized solar cell photoanode

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Embodiment Construction

[0015] As shown in the figure, a layer of ZnO nano-film layer 3 (about 50nm) is grown on a glass substrate 1 with a transparent conductive film ITO2 by ultrasonic spray pyrolysis, and the temperature during the ultrasonic spray pyrolysis growth process is maintained at 300°C . The sheet resistance of ITO is 50Ω / □, and the transmittance of ITO conductive glass is greater than 85%.

[0016] The one-dimensional ordered nano-ZnO4 in the core layer is prepared by hydrothermal method. Zinc acetate is placed in a container with a cover that can be screwed tightly, and deionized water is injected into it, and it is fully dissolved by means of ultrasound, and then added to the solution Add ammonia water dropwise, and keep shaking, when the solution becomes clear, stop injecting ammonia water. Afterwards, the ITO glass piece grown with a ZnO nanoparticle layer (about 50 nm) was placed vertically on the holder of the container, and the lid was tightened. Finally, the container was plac...

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Abstract

The invention relates to a dye-sensitized solar cell laminated photoanode based on a one-dimensional ordered nano-ZnO / TiO2 core-shell structure and an infrared up-conversion luminous material, and the dye-sensitized solar cell laminated photoanode provided by the invention comprises a ZnO nano-thin film layer (3) grown on a transparent glass substrate (1) on which a transparent conductive film ITO (indium tin oxide) (2) is grown, the one-dimensional ordered nano-ZnO (4) / TiO2 (5) core-shell structure grown on the ZnO nano-thin film layer, and a finally prepared compound thin film (6) made of TiO2 and the infrared up-conversion luminous material. The dye-sensitized solar cell laminated photoanode based on the one-dimensional ordered nano-ZnO / TiO2 core-shell structure and the infrared up-conversion luminous material has the following advantages: 1) the excellent photovoltaic property of the TiO2 material is fully utilized; 2) the one-dimensional ordered nano-ZnO of a core layer provides a fast transmission channel for electrons, thereby reducing compounding; 3) the TiO2 material of a shell layer can be used for improving the open-circuit voltage and fill factor of a cell; and 4) near-infrared light can be effectively converted to visible light by utilizing the infrared up-conversion material and then be effectively absorbed by dye.

Description

technical field [0001] The invention relates to a one-dimensional ordered nano-ZnO / TiO 2 A dye-sensitized solar cell laminate photoanode with a core-shell structure and an infrared up-conversion luminescent material, which can be applied to the dye-sensitized solar cell. Background technique [0002] In-depth study of the core part of photoelectric conversion in dye-sensitized solar cells—the photoanode is of great significance for improving the photoelectric conversion efficiency of dye-sensitized solar cells. There are many factors that limit the photoelectric conversion efficiency of photoanodes, but the following two factors cannot be ignored: ① about 50% of the near-infrared light in the solar spectrum is not fully utilized by photoanodes; ② how to provide electrons with fast Transmission channel, thereby reducing the chance of recombination. [0003] Based on the above two shortcomings, it is proposed to use one-dimensional ordered nano-ZnO / TiO 2 Core-shell structur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/04H01G9/048H01G9/20H01M14/00H01L51/44
CPCY02E10/542Y02E10/50Y02E10/549
Inventor 黄金昭魏显起李萍李世帅张仲王培吉
Owner UNIV OF JINAN