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EP1449902A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Light absorptive composition

Assignee: Hayashibara Seibutsu Kagaku Kenkyujo KK
•
Filing: 2002-11-11
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Granted: —
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Expires: 2022-11-11
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Abstract

Abstract The object of the present invention is to provide a light absorptive composition which exerts an improved photoelectric conversion efficiency in photoelectric conversion elements such as solar cells. The present invention attains the above object by providing a light absorptive composition, which comprises a first organic compound that absorbs light with a wavelength ranging from the ultraviolet region to the visible region to emit light with a longer wavelength than that of the absorbed light, and a second organic compound that absorbs the light emitted from the first organic compound; a semiconductor electrode which has been sensitized with the light absorptive composition; a photoelectric conversion element comprising the light absorptive composition; and a solar cell comprising the light absorptive composition.

Inventors

  • 👤 Hideo c/o K. K. Hayashibara OHTAKA
  • 👤 Hirofumi c/o K. K. Hayashibara MITEKURA
  • 👤 Kentaro c/o K. K. Hayashibara YANO
  • 👤 Fumio c/o K. K. Hayashibara MATSUI

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-27 21:30
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/003; C09; C09K; C09K11/00; C09K11/06; C07F15/00; C07F15/0006; C07F15/0033; C07F15/004; H; H01; H01G; H01G9/00; H01G9/20; H01G9/2027; H01G9/2031; H01G9/2059; H01M; H01M14/00; H10; H10K; H10K85/00; H10K85/30; H10K85/351; H10K85/60; H10K85/649; H10K85/652; C09K2211/00; C09K2211/10; C09K2211/1003; C09K2211/1007; C09K2211/1014; C09K2211/1018; C09K2211/1025; C09K2211/1029; C09K2211/1033; C09K2211/1037; C09K2211/1092; C09K2211/18; C09K2211/182; H10K85/321; H10K85/324; H10K85/341; H10K85/342; H10K85/344; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/542; Y02E10/549

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 52 words
A light absorptive composition, comprising a first organic compound which absorbs light with a wavelength ranging from the ultraviolet region to the visible region to emit light with a longer wavelength than that of the absorbed light, and a second organic compound which absorbs the light emitted from the first organic compound.
Claim 2
Dependent Claim 11 words
The light absorptive compound of claim 1, which is a photosensitizer.
Claim 3
Dependent Claim 17 words
A semiconductor electrode, which has been photosensitized with the light absorptive composition of claim 1 or 2.
Claim 4
Dependent Claim 14 words
A photoelectric conversion element, comprising the light absorptive composition of claim 1 or 2.
Claim 5
Dependent Claim 13 words
A solar cell, comprising the light absorptive composition of claim 1 or 2.
Claim 6
Dependent Claim 12 words
The solar cell of claim 5, which is a photoelectrochemical solar cell.

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