Unlock instant, AI-driven research and patent intelligence for your innovation.

Solar cell

A technology of solar cells and electrodes, applied in the field of solar cells, can solve problems such as deterioration and reduction of photoelectric conversion efficiency.

Active Publication Date: 2017-08-18
SEKISUI CHEM CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in an organic solar cell sealed with a sealing resin such as a sealing material, the semiconductor material deteriorates during sealing depending on the type of semiconductor material, resulting in a problem of lower photoelectric conversion efficiency (initial degradation)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Solar cell
  • Solar cell
  • Solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] (manufacturing of laminated body)

[0106] An FTO film with a thickness of 1000 nm was formed as an electrode on a glass substrate, and it was cleaned by ultrasonic waves for 10 minutes each using pure water, acetone, and methanol in this order, and then dried.

[0107] An ethanol solution of titanium isopropoxide adjusted to 2% was coated on the surface of the FTO film by spin coating, and then fired at 400° C. for 10 minutes to form a thin-film electron transport layer with a thickness of 20 nm. Utilize the spin coating method to coat the titanium oxide paste comprising polyisobutyl methacrylate and titanium oxide (average particle diameter is the mixture of 10nm and 30nm) as organic binder on the film-like electron transport layer, after that , and fired at 500° C. for 10 minutes to form a porous electron transport layer with a thickness of 500 nm.

[0108] Next, as a solution for forming an organic-inorganic perovskite compound, using N,N-dimethylformamide (DMF) as...

Embodiment 2～5

[0120] In the preparation of the laminate, the photoelectric conversion layer (organic-inorganic perovskite compound) shown in Table 1 was formed by changing the compounding components of the solution for forming the organic-inorganic perovskite compound. Get solar cells.

[0121] It should be noted that in Example 2, using N,N-dimethylformamide (DMF) as a solvent, CH 3 NH 3 Br, CH 3 NH 3 I. PbBr 2 , PbI 2 Dissolve according to the molar ratio 1:2:1:2. In Example 3, using N,N-dimethylformamide (DMF) as solvent, CH 3 NH 3 I and PbCl 2 Dissolve according to the molar ratio of 3:1. In Example 4, using N,N-dimethylformamide (DMF) as solvent, CH 3 NH 3 Br and PbBr 2 According to the molar ratio of 1:1 dissolved. In Example 5, using N,N-dimethylformamide (DMF) as solvent, CH 3 (NH 3 ) 2 I and PbI 2 According to the molar ratio of 1:1 dissolved.

Embodiment 6

[0123] A solar cell was obtained in the same manner as in Example 1 except that the thickness of the sealing material shown in Table 1 was changed in the sealing of the laminated body.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The purpose of the present invention is to provide a solar cell having excellent photoelectric conversion efficiency, little deterioration during sealing (initial deterioration), high-temperature durability, and excellent temperature cycle durability. This solar cell has: a laminate having an electrode, a counter electrode, and a photoelectric conversion layer arranged between the electrode and the counter electrode; and a sealing material covering the counter electrode and sealing the laminate. The photoelectric conversion layer includes an organic-inorganic perovskite compound indicated by general formula R-M-X3 (R indicating an organic molecule, M indicating a metal atom, and X indicating a halogen atom or a chalcogen atom.) The sealing material includes a (meth) acrylic resin having a C atom / O atom ratio in the molecules thereof of at least 4.

Description

technical field [0001] The present invention relates to a solar cell that is excellent in photoelectric conversion efficiency, has little degradation (initial degradation) during sealing, has high-temperature durability, and is excellent in temperature cycle resistance. Background technique [0002] Conventionally, a photoelectric conversion element including a laminate in which an N-type semiconductor layer and a P-type semiconductor layer are arranged between opposing electrodes has been developed. In such a photoelectric conversion element, photocarriers are generated by photoexcitation, electrons move in the N-type semiconductor, and holes move in the P-type semiconductor, thereby generating an electric field. [0003] At present, most photoelectric conversion elements in practical use are inorganic solar cells manufactured using inorganic semiconductors such as silicon. However, since inorganic solar cells are costly to manufacture and are difficult to increase in size...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/44C07C211/04C07F7/24C08L33/00H10K99/00
CPCC07F7/24Y02E10/549Y02E10/542C09D133/10C09D133/14C09D133/08C23C14/3464C23C14/086H10K30/88H10K85/50H10K30/85H10K30/50C08K2003/2241C08L33/00C07C211/04H10K30/10H10K30/80H10K30/81H10K85/30H10K85/141H10K85/624H10K85/633H10K2102/00C07C211/63H01G9/2009
Inventor 早川明伸浅野元彦宇野智仁堀木麻由美福本雄一郎榑林哲也小原峻士
Owner SEKISUI CHEM CO LTD