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Photoelectric conversion element, method for producing photoelectric conversion element, and solar cell

A technology for a photoelectric conversion element and a manufacturing method, which is applied in the field of solar cells, can solve the problems of high manufacturing cost, limited utilization range, difficulty in large-scale, etc., and achieves the effect of high photoelectric conversion efficiency

Pending Publication Date: 2021-07-23
SEKISUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, inorganic solar cells are not only expensive to manufacture, but also difficult to increase in size, and the scope of application is limited. Therefore, organic solar cells manufactured using organic semiconductors instead of inorganic semiconductors (for example, Patent Documents 1 and 2), and organic semiconductors combined with inorganic semiconductors Organic and inorganic solar cells have attracted much attention

Method used

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  • Photoelectric conversion element, method for producing photoelectric conversion element, and solar cell
  • Photoelectric conversion element, method for producing photoelectric conversion element, and solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] An ITO film with a thickness of 1000 nm was formed as a cathode on a glass substrate, and after each of pure water, acetone, and methanol was ultrasonically cleaned for 10 minutes each, it was dried.

[0087] On the surface of the ITO film, a thin-film electron transport layer having a thickness of 20 nm was formed by sputtering. Furthermore, a titanium oxide paste containing titanium oxide (a mixture of average particle diameters of 10 nm and 30 nm) was applied by spin coating on the thin-film electron transport layer to form a porous electron transport layer with a thickness of 100 nm.

[0088] Next, to a mixed solvent of 1 mL of N,N-dimethylformamide (DMF) and 80 μL of dimethyl sulfoxide was added 550 mg of lead iodide as a metal halide, and 0.2% by weight of lead iodide as Lead nitrate as a metal nitrate and potassium iodide as a potassium halide in an amount of 0.1% by weight relative to lead iodide were dissolved to prepare a first liquid. This was formed into a ...

Embodiment 2～15、 comparative example 3、4

[0101] A solar cell was obtained in the same manner as in Example 1 except that the contents of lead nitrate and potassium iodide in the first liquid were changed as shown in Table 1.

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Abstract

The purpose of the present invention is to provide: a photoelectric conversion element which has high photoelectric conversion efficiency; a method for producing this photoelectric conversion element; and a solar cell which uses this photoelectric conversion element. The present invention is a photoelectric conversion element which contains a perovskite compound represented by general formula AMX (wherein A represents an organic basic compound and / or an alkali metal; M represents a lead or tin atom; and X represents a halogen atom), and which is configured such that the intensity ratio of nitrate ions to halogen ions (NO3 / X) as determined by means of TOF-SIMS measurement is 0.0010 or more but less than 0.2000.

Description

technical field [0001] The present invention relates to a photoelectric conversion element with high photoelectric conversion efficiency, a method for manufacturing the photoelectric conversion element, and a solar cell using the photoelectric conversion element. Background technique [0002] Conventionally, a solar cell including a laminate (photoelectric conversion element) in which an N-type semiconductor layer and a P-type semiconductor layer are arranged between opposing electrodes has been developed. In such a solar cell, photocarriers (electron-hole pairs) are generated by photoexcitation, electrons move in an N-type semiconductor, and holes move in a P-type semiconductor, thereby generating an electric field. [0003] At present, most of the practical solar cells are inorganic solar cells manufactured using inorganic semiconductors such as silicon. However, inorganic solar cells are not only expensive to manufacture, but also difficult to increase in size, and the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/44
CPCY02E10/549Y02P70/50H10K30/10H10K30/50H10K85/50H10K30/30
Inventor 冈本允子筱原贵道折井隼早川明伸
Owner SEKISUI CHEM CO LTD