Hybrid nanostructure including gold nanoparticles and photoelectrode for solar cell having the same

Patent metadata

Field	Value
Publication number	US-9305713-B2
Application number	US-201313905964-A
Country	US
Kind code	B2
Filing date	May 30, 2013
Priority date	May 30, 2012
Publication date	Apr 5, 2016
Grant date	Apr 5, 2016

Abstract

There is provided a hybrid nanostructure including Au nanoparticles, a photoelectrode for a solar cell having the hybrid nanostructure, and a solar cell including the photoelectrode.

First claim

What is claimed is:

1. A photoelectrode for a solar cell, comprising:
a TiO 2 particle;
a dye adsorbed on the TiO 2 particle; and,
hybrid nanostructures disposed on the TiO 2 particle,
wherein each of the hybrid nanostructures includes a TiO 2 shell disposed on a SiO 2 support particle, and Au nanoparticles,
wherein a size of the Au nanoparticles is in the range of from 5 nm to 30 nm,
wherein the hybrid nanostructures are in a sphere shape,
wherein a diameter of the hybrid nanostructures is in the range of from 100 nm to 430 nm,
wherein the hybrid nanostructures incur surface plasmon resonance, and
wherein the photoelectrode includes the hybrid nanostructures at a ratio ranging from about 0.5 weight percent to about 5.0 weight percent.

2. The photoelectrode for a solar cell of claim 1 , wherein the Au nanoparticles are disposed on the TiO 2 shell.

3. The photoelectrode for a solar cell of claim 1 , wherein the Au nanoparticles are disposed on the SiO 2 support particle.

4. A solar cell, comprising:
a photoelectrode of claim 1 , a counter electrode, and an electrolyte.

5. A method of preparing a photoelectrode for a solar cell comprising:
preparing a paste including TiO 2 nanoparticles and hybrid nanostructures;
disposing a film on a conductive transparent substrate by using the paste;
heating the film on the conductive transparent substrate; and
immersing the film in a dye solution;
wherein the hybrid nanostructures are prepared by a process including steps of:
disposing amine groups on a surface of a SiO 2 support particle;
disposing a TiO 2 shell on the amine groups on the surface of the SiO 2 support particle;
disposing amine groups on a surface of the TiO 2 shell on the amine groups on the surface of the SiO 2 support particle; and
disposing Au nanoparticles on the amine groups on a surface of the TiO 2 shell on the amine groups on the surface of the SiO 2 support, particle;
wherein a size of the Au nanoparticles is in the range of from 5 nm to 30 nm,
wherein the hybrid nanostructures are in a sphere shape and are disposed on the TiO 2 nanoparticle,
wherein a diameter of the hybrid nanostructures is in the range of from 100 nm to 430 nm, and
wherein the photoelectrode includes the hybrid nanostructures at a ratio ranging from about 0.5 weight percent to about 5.0 weight percent.

6. A method of preparing a photoelectrode for a solar cell comprising:
preparing a paste including TiO 2 nanoparticles and hybrid nanostructures;
disposing a film on a conductive transparent substrate by using the paste;
heating, the film on the conductive transparent substrate; and
immersing the film in a dye solution;
wherein the hybrid nanostructures are prepared by a process including steps of:
disposing amine groups on a surface of a SiO 2 support particle;
disposing Au nanoparticles on the amine groups on the surface of the SiO 2 support particle;
disposing amine groups on the Au nanoparticles on the amine groups on the surface of the SiO 2 support particle and on the SiO 2 support particle; and
disposing a TiO 2 shell on the amine groups on the Au nanoparticles on the amine groups on the surface of the SiO 2 support particle and on the SiO 2 support particle;
wherein a size of the Au nanoparticles is in the range of from 5 nm to 30 nm,
wherein the hybrid nanostructures are in a sphere shape and are disposed on the TiO 2 nanoparticle,
wherein a diameter of the hybrid nanostructures is in the range from 100 nm to 430 nm, and
wherein the photoelectrode includes the hybrid nanostructures at a ratio ranging from about 0.5 weight percent to about 5.0 weight percent.

Assignees

• EWHA University—Industry Collaboration Foundation
• Univ Ewha Ind Collaboration

Inventors

• Kim Dong Ha
• Jang Yoon Hee

Classifications

• H10F71/00

  Manufacture or treatment of devices covered by this subclass (patterning processes to connect thin photovoltaic cells in integrated devices, or assemblies of multiple devices, having photovoltaic cells H10F19/33; manufacture or treatment of encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells H10F19/80; manufacture or treatment of integrated devices, or assemblies of multiple devices, comprising at least one element in which radiation controls the flow of current H10F39/00) · CPC title

• H10F77/20

  Electrodes · CPC title

• H10F19/00 Primary

  Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules · CPC title

• H01G9/0029

  Processes of manufacture · CPC title

• H01G9/2036 Primary

  comprising mixed oxides, e.g. ZnO covered TiO2 particles · CPC title