Photosensitive organic dyes for dye-sensitized solar cells

• US 10,032,568 B2
• Filed: 07/14/2014
• Issued: 07/24/2018
• Est. Priority Date: 04/09/2014
• Status: Active Grant

• Current Assignee: National Chung Hsing University (Government of The Republic of China)
• Original Assignee: National Chung Hsing University (Government of The Republic of China)
• Inventors: Yeh, Chen-Yu, Su, Po-Cheng, Hsu, Chia-Wei, Mai, Chi-Lun
• Primary Examiner(s): Zucker, Paul A
• Application Number:
  US14/330,295
• Publication Number:
  US 20150294797A1
• Time in Patent Office: 1,471 Days
• CPC Class Codes: C09B 1/00 Dyes with anthracene nucleus not condensed with any other ring
• CPC Class Codes: C09B 57/008 Triarylamine dyes containing no other chromophores
• CPC Class Codes: H01G 9/2059 comprising an organic dye as the active light absorbing material, e.g. adsorbed on an electrode or dissolved in solution
• CPC Class Codes: H10K 85/615 Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
• CPC Class Codes: H10K 85/633 comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom
• CPC Class Codes: H10K 85/652 Cyanine dyes
• CPC Class Codes: H10K 85/657 Polycyclic condensed heteroaromatic hydrocarbons
• CPC Class Codes: Y02E 10/542 Dye sensitized solar cells
• CPC Class Codes: Y02E 10/549 Organic PV cells

Abstract

A photosensitive organic dye is adapted to be used in a photoelectric converting device such as a dye-sensitized solar cell. The photosensitive organic dye having a structural formula (I):

where,

• Aryl₁ represents substituted or unsubstituted aryl with one or more aromatic rings,
• NR₂R₃ represents a substituted electron-donating group, wherein N represents a nitrogen atom, and R₂ and R₃ independently represent identical or different substituted or unsubstituted hydrocarbon groups,
• L represents an optional linker unit, and
• A represents an electron-withdrawing group.

Claims

1. A photosensitive organic dye for a photoelectric converting device, the photosensitive organic dye having a structural formula (I):

3. A dye-sensitized solar cell containing the photosensitive organic dye according to claim 1, wherein the photosensitive organic dye is coated on a semiconductor film and used as a photosensitizer.

2. A photosensitive organic dye having the following structural formula: