US 2009/0020159 A1Published application

Dye-sensitized solar cell

AssigneeNational Yunlin University of Science and Technology

InventorsRong-Ho LEE, Yu-Wei HUANG

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Abstract

A dye-sensitized solar cell includes a first electrode layer, a photosensitive dye layer, a second electrode layer, an energy-level intermediary layer, a first substrate and a second substrate. The photosensitive dye layer is used to receive sunlight and convert the sunlight to electrons and holes for being released. The first electrode layer is disposed on one side of the photosensitive dye layer to receive the electrons generated from the photosensitive dye layer. The second electrode layer is disposed on the other side of the photosensitive dye layer to receive the holes generated from the photosensitive dye layer. The energy-level intermediary layer is positioned between the first electrode layer and the photosensitive dye layer, so as to improve an injection efficiency of electrons and to prevent the generation of counter current, and thereby enhancing photoelectric conversion efficiency of the cell.

Claims20

Dependent claims

A dye-sensitized solar cell, comprising a photosensitive dye layer, for receiving sunlight and converting the sunlight into a plurality of electrons and a plurality of holes for being released;

a first electrode layer, disposed on one side of the photosensitive dye layer, for receiving the electrons generated from the photosensitive dye layer;
a second electrode layer, disposed on the other side of the photosensitive dye layer opposite to the first electrode layer, for receiving the holes generated from the photosensitive dye layer;
an energy-level intermediary layer, disposed between the first electrode layer and the photosensitive dye layer, for improving the electrons injection and transport efficiency between the first electrode layer and the photosensitive dye layer;
a first substrate, disposed on the other side of the first electrode layer opposite to the energy-level intermediary layer;
and
a second substrate, disposed on the other side of the second electrode layer opposite to the photosensitive dye layer.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/849,615Filed 4 Sep 2007
Priority: TW 09612643419 Jul 2007
Published: 22 Jan 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H01G 9/2031
Comprising an oxide semiconductor electrode: comprising titanium oxide, e.g. TiO2
H01G 9/2036
Comprising an oxide semiconductor electrode: comprising mixed oxides, e.g. ZnO covered TiO2 particles
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
H10K 85/344
Transition metal complexes, e.g. Rupolypyridine complexes: comprising ruthenium