US 2011/0297236 A1 · DYE-SENSITIZED PHOTOVOLTAIC DEVICE, METHOD FOR MAKING THE SAME, ELECTRONIC DEVICE, METHOD FOR MAKING THE SAME, AND ELECTRONIC APPARATUS

Abstract

In a dye-sensitized photovoltaic device including a semiconductor fine particle layer 2 on which a sensitizing dye is adsorbed, a counter electrode 3, and an electrolyte layer 4 between the electrodes, a molecule having a plurality of acid functional groups for adsorption onto the semiconductor electrode is used as a molecule of the sensitizing dye, and part of the acid functional groups is neutralized with an alkaline compound which is a hydroxide of at least one metal or compound selected from the group consisting of Li, Na, K, tetramethylammonium, tetraethylammonium, tetrapropylammonium, tetrabutylammonium, an imidazolium compound, and a pyridinium compound. In this manner, a dye-sensitized photovoltaic device that can achieve high photoelectric conversion efficiency even in the cases where a dye containing readily aggregating acid functional groups, such as carboxylic acid, as the adsorbing groups is used. A method for making the device is also provided.

Claims20

Dependent claims

A dye-sensitized photovoltaic device comprising:

a first conductive substrate;
a semiconductor layer including a plurality of semiconductor fine particles in contact with the first conductive substrate;
a plurality of molecules of sensitizing dye adsorbed on to the semiconductor layer, wherein gaps are included in between the molecules of sensitizing dye;
and
a plurality of additive molecules adsorbed both on to a surface of the semiconductor layer and into gaps between the molecules of sensitizing dye so as to suppress exposure of the surface of the semiconductor layer.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/211,717Filed 17 Aug 2011

Priority

JP 2005-06867111 Mar 2005

Published

8 Dec 2011

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

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
H01G 9/2004
Light-sensitive devices: characterised by the electrolyte, e.g. comprising an organic electrolyte
H01M 14/005
Electrochemical current or voltage generators not provided for in groups H01M6/00 - H01M12/00; Manufacture thereof: photoelectrochemical storage cells
H10K 85/344
Transition metal complexes, e.g. Rupolypyridine complexes: comprising ruthenium

Dye-sensitized photovoltaic device, method for making the same, electronic device, method for making the same, and electronic apparatus

Life of this patent

Dye-sensitized photovoltaic device, method for making the same, electronic device, method for making the same, and electronic apparatus

Life of this patent

Abstract

Claims20