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A making method for large-area nano film solar battery

A technology of solar cells and nano-thin films, applied in the field of solar cells, can solve problems such as complicated processes, shortened service life, and decreased battery performance, and achieve the effects of simplifying the packaging process, ensuring long life, and high stability

Inactive Publication Date: 2008-08-13
上海纳晶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, the current DSSC mainly adopts the 3 -1 / I -1 Although the liquid electrolyte of the redox couple has high photoelectric conversion efficiency, the liquid electrolyte is easy to leak and the organic solvent is easy to volatilize, which makes it difficult to seal the battery, and the performance of the battery decreases during long-term operation, and the service life is shortened. Reliability and stability have great limitations. Therefore, how to solve the problems affecting the stability of the battery, such as solvent leakage and volatilization, in the process of manufacturing nanocrystalline dye-sensitized solar cells, solve the key technical problems of device packaging, and improve the stability of the device. Sex and reliability are several major problems faced in the device processing technology
[0005] The liquid dielectric contains I 3 -1 / I -1 Redox pair is a chemically active and highly corrosive substance. Its existence makes nanocrystalline dye-sensitized solar cells different from inorganic solid-state solar cells, resulting in difficult battery sealing and complicated processes. Nanocrystalline dye-sensitized solar cells The packaging of dye-sensitized solar cell components is much more difficult than that of traditional solar cell components. The packaging technology of dye-sensitized solar cells is the main key bottleneck technology for the development of long-life and high-stability DSSC; on the other hand, it is necessary to simplify process, reduce costs, and prepare high-efficiency, stable, long-life, and cheap solar cells, so that DSSC solar cells can finally be widely used

Method used

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  • A making method for large-area nano film solar battery
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  • A making method for large-area nano film solar battery

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Embodiment 1

[0020] Referring to Fig. 1, it is a schematic diagram of the basic structure of the tandem structure solar cell module of the present invention, a large-area DSSC battery is connected in series by a plurality of strip-shaped single DSSC batteries, and the large-area DSSC battery of the tandem structure is increased by adding internal corrosion-resistant interconnecting strips Connection, corrosion-resistant interconnection bar is composed of electrode protective film and low-resistance electrode terminal formed by covering the electrode surface with polymer material or glass or ceramics as a protective film; corrosion-resistant interconnection of adjacent strip-shaped single DSSC cells Strips, i.e. low resistance wires protected by a protective spacer such as glass frit, are deposited by screen printing.

[0021]Referring to Figure 2 and Figure 3, TiO is prepared according to the process for making dye-sensitized single solar cells 2 Colloidal solution and made into slurry, an...

Embodiment 2

[0024] Referring to Figures 4a and 4b, it is a schematic diagram of the basic structure of the tandem structure solar cell assembly of the present invention. A plurality of strip-shaped single DSSC cells are connected in parallel through low-resistance grid electrodes to form a large-area battery, and the low-resistance grid electrodes pass through the wire mesh. Printing preparation, while using polymer materials or glass or ceramics to cover the electrode surface to protect the electrode, and prepare a large-area DSSC connected in parallel.

[0025] Preparation of TiO according to the process method for making dye-sensitized monolithic solar cells 2 The colloidal solution is made into a slurry, and the screen printing slurry such as platinum counter electrode, silver glue, glass powder, etc. is prepared, and prepared at the corresponding position of the glass substrate, including TiO 2 Functional layers of nanoporous film, platinum counter electrode, and silver glue line.

...

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Abstract

The present invention relates to the technique field of the solar cell, concretely to a method for manufacturing a large-area nano thin-film solar cell, and the method has the following characters: the monomer DSSC is made to strip, the corrosion resistant interlinking strip is used for series-connecting the strip monomer DSSC to a large-area solar cell, the two sides of the corrosion resistant interlinking strip are respectively arranged with a protecting interlayer, or the low resistance grid electrode prepared with the silk screen printing method is adopted, and the surface of the low-resistance grid electrode is covered with a protecting film, afterwards the low resistance grid electrode covered with protecting film is adopted for parallel-connecting a plurality of strip monomers DSSC to a large-area solar cell, the contact surface between on side glass of the large-area solar cell and the TCO is arranged with a bottling groove, when the electrolyte and dye are pumped from the bottling groove which is arranged at one end of the large-area solar cell, the bottling groove is broken off and the sealing is executed. Comparing with the existing technique the invention has the advantages of simplifying the packaging technology, reducing the cost, and guaranteeing the longevity and high stability of the product.

Description

[technical field] [0001] The invention relates to the technical field of solar cells, in particular to a method for manufacturing a large-area nanometer film solar cell. [technical background] [0002] Nanocrystalline dye-sensitized solar cell DSSC is a semiconductor optoelectronic device that directly converts solar energy into electrical energy based on the principle of photovoltaics, using dye-sensitized porous nanostructured films as photoanodes. field of scientific research. In 1991, the research group led by Professor Grtzel of the Swiss Institute of Advanced Technology in Lausanne, used nano-TiO with high specific surface area 2 The porous film is used as the semiconductor electrode, and the organometallic compound such as Ru is used as the photosensitizing dye, and the appropriate redox electrolyte is selected as the medium to assemble TiO 2 Nanocrystalline dye-sensitized solar cells, whose photoelectric conversion efficiency reaches 7.1% under AM1.5 simulated sun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01G9/20H01M14/00
CPCY02P70/50
Inventor 孙卓黄素梅李晓冬
Owner 上海纳晶科技有限公司
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