US 2006/0048812 A1 · Dye-sensitized solar cell

Abstract

A dye-sensitized solar cell with high conversion efficiency is provided. The dye-sensitized solar cell according to the present invention has, between an electrode (2) formed on a surface of a transparent substrate (1) and a counter electrode (6), a light-absorbing layer (3) containing light-absorbing particles carrying dye and an electrolyte layer (5), characterized in that the light-absorbing layer (3) containing light-scattering particles (4) different in size from the light-absorbing particles. In such a dye-sensitized solar cell according to the present invention, the energy of light, which passes through a light-absorbing layer in a conventional cell structure, can be strongly absorbed by the dye in the light-absorbing layer of the present invention. This will increase the conversion efficiency and output current of the dye-sensitized solar cell.

Claims1

Dependent claims

A photocell comprising, between an electrode formed on a surface of a substrate and a counter electrode:

light-absorbing particles carrying dye,
light-scattering particles different in size from the light-absorbing particles, and
an electrolyte;
wherein the light-scattering particles and the light-absorbing particles are composed of different materials.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

11/261,732Filed 28 Oct 2005

Priority

JP JP2002-10940811 Apr 2002

Published

9 Mar 2006

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

H01G 9/2036
Comprising an oxide semiconductor electrode: comprising mixed oxides, e.g. ZnO covered TiO2 particles
H01G 9/2031
Comprising an oxide semiconductor electrode: comprising titanium oxide, e.g. TiO2
H01G 9/2059
Light-sensitive devices: comprising an organic dye as the active light absorbing material, e.g. adsorbed on an electrode or dissolved in solution
Y02E 10/542
Photovoltaic [PV] energy: dye sensitized solar cells

Dye-sensitized solar cell

Life of this patent

Dye-sensitized solar cell

Life of this patent

Abstract

Claims1