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Solar cell and method for manufacturing solar cell

A technology of solar cells and electrodes, applied in the field of solar cells, can solve the problems of limited application range, high cost, difficulty in large-scale, etc.

Pending Publication Date: 2019-09-20
SEKISUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such inorganic solar cells are not only expensive to manufacture, but also difficult to enlarge, and there is a problem that the range of application is limited.

Method used

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  • Solar cell and method for manufacturing solar cell
  • Solar cell and method for manufacturing solar cell
  • Solar cell and method for manufacturing solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0139] Aluminum foil (manufactured by UACJ, general-purpose aluminum A1N30 grade, thickness 100μm) was anodized with aluminum sulfate film treatment for 30 minutes to form an aluminum oxide film (thickness 5μm, thickness ratio) on the surface of the aluminum foil 5%) to obtain a flexible substrate.

[0140] Using a batch sputtering device (manufactured by ULVAC), a 6-inch Ti target was formed into a hard film containing titanium nitride (TiN) (with a thickness of 100 nm, dimension Its hardness is 2100HV). At this time, 20sccm of Ar and 5sccm of N are introduced as process gas 2 , Adjust the pressure so that the pressure during film formation reaches 0.1Pa.

[0141] An Al film with a thickness of 100 nm was formed on the hard film by a vapor deposition machine, and a Ti film with a thickness of 100 nm was formed on the Al film by a sputtering method to form a cathode (Ti / Al film). Using a mechanical scribing machine (manufactured by Mitsuboshi Diamond Industrial Co., Ltd., KMPD100...

Embodiment 2～12

[0149] Except having changed the hard film as shown in Table 1, it carried out similarly to Example 1, and obtained the solar cell.

Embodiment 13

[0164] On the glass substrate, an aluminum film with a thickness of 200 nm as a conductive layer and a molybdenum film with a thickness of 50 nm as a cathode were successively formed by the electron beam evaporation method.

[0165] Next, using a sputtering device (manufactured by ULVAC), titanium oxide was sputtered on the surface of the cathode, thereby forming a thin-film electron transport layer with a thickness of 30 nm. Furthermore, an ethanol dispersion of titanium oxide (a mixture of 10 nm and 30 nm in average particle diameter) was coated on the thin-film electron transport layer by spin coating, and then fired at 200°C for 10 minutes to form a porous 150 nm thick Electron transport layer.

[0166] Next, as a solution for forming an organic-inorganic perovskite compound, N,N-dimethylformamide (DMF) was used as a solvent, and CH 3 NH 3 I and PbI 2 Dissolve at a molar ratio of 1:1, the CH 3 NH 3 I and PbI 2 The total weight concentration is adjusted to 20%. This solution wa...

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Abstract

A first purpose of the present invention is to provide a solar cell which has exceptional photoelectric conversion efficiency and for which machining during manufacturing (e.g., mechanical patterning) can be performed well, and a method for manufacturing said solar cell. The first invention is a solar cell which has, on flexible bases (1, 2), an electrode (4), a transparent electrode, and a photoelectric conversion layer disposed between the electrode (4) and the transparent electrode, wherein: the solar cell furthermore has a hard film (3) disposed between the flexible bases (1, 2) and the electrode (4); and the hard film (3) contains a nitride, a carbide, or a boride containing at least one element selected from the group consisting of titanium, zirconium, aluminum, silicon, magnesium, vanadium, chromium, molybdenum, tantalum, and tungsten.

Description

Technical field [0001] The present invention relates to a solar cell that can perform cutting processing (for example, mechanical patterning) during manufacturing and has excellent photoelectric conversion efficiency, and a method of manufacturing the solar cell. In addition, the present invention relates to a solar cell with low series resistance and high photoelectric conversion efficiency. Background technique [0002] In the past, as a solar cell, a laminate in which an N-type semiconductor layer and a P-type semiconductor layer are arranged between opposed electrodes has been actively developed. As the above-mentioned N-type and P-type semiconductors, inorganic semiconductors such as silicon have been mainly used. However, this type of inorganic solar cell is not only costly to manufacture, but also difficult to increase in size, and there is a problem that the range of use is limited. [0003] Therefore, in recent years, perovskite solar cells obtained by using organic-inorg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/48H01L51/44H10K99/00
CPCY02E10/549Y02P70/50H10K71/211H10K77/111H10K30/81H10K85/50H10K30/50H10K30/10H01L31/022425H01L31/03926H01L31/1884H10K30/82H10K71/00
Inventor 会田哲也早川明伸浅野元彦汤川麻由美宇野智仁榑林哲也森田健晴
Owner SEKISUI CHEM CO LTD
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