Dye-sensitized solar cell module and method of fabricating the same

• US 8,952,248 B2
• Filed: 12/07/2010
• Issued: 02/10/2015
• Est. Priority Date: 12/18/2009
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Ryu, Seung Hoon, Joo, Sung Hoon, Park, Seong Kee, Myung, Noh Jin, Jeong, So Mi
• Primary Examiner(s): Mowla, Golam
• Application Number:
  US12/962,199
• Publication Number:
  US 20110146783A1
• Time in Patent Office: 1,526 Days
• Field of Search: 136/263, 136/252
• US Class Current: 136/263
• CPC Class Codes: H01G 9/2031 comprising titanium oxide, e.g. TiO2 H01G9/2036 takes precedence
• CPC Class Codes: H01G 9/2068 Panels or arrays of photoelectrochemical cells, e.g. photovoltaic modules based on photoelectrochemical cells
• CPC Class Codes: Y02E 10/542 Dye sensitized solar cells
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

A dye-sensitized solar cell module is disclosed. The dye-sensitized solar cell module includes a solution capable of being selectively printed on only a desired region and used in the formation of a metal oxide film. The solution for the metal oxide film formation can be selectively printed on only the surface of metal oxide nano-particle without affecting the electrical conductivity of the electrode and a sealant interposed between transparent electrodes. Therefore, the dye-sensitized solar cell module can greatly improve the output efficiency. Moreover, the dye-sensitized solar cell module can prevent the output efficiency deterioration at an enlarged size.

Claims

1. A dye-sensitized solar cell module comprising:

a first substrate;

a first electrode disposed on the first substrate;

a blocking film disposed on the first electrode;

nano-particles arranged on the blocking film;

a film formed to encompass each of the nano-particles;

a second substrate with a second electrode disposed above the nano-particles;

an electrolyte interposed between the first and second electrodes;

a metal electrical conductivity line formed to connect the first electrode with the second electrode; and

a sealant disposed between the electrolyte and the metal electrical conductivity line,

wherein the film is made of a titanium dioxide organosol solution,

wherein the titanium dioxide organosol solution is made of a mixture of diethanolamine and titanium tetrabutoxide in ethanol and the titanium dioxide organosol solution is concentrated in a quantity of about 100 ml, and

wherein the titanium dioxide organosol solution has a viscosity range of 3-5 cP (centipoise).

2. The dye-sensitized solar cell module claimed as claim 1, wherein the film is disposed on a part of each surface of the nano-particles.

3. The dye-sensitized solar cell module claimed as claim 1, wherein the blocking film, the nano-particles, and the film are formed from a metal oxide.

4. The dye-sensitized solar cell module claimed as claim 3, wherein the metal oxide includes titanium dioxide.

5. The dye-sensitized solar cell module claimed as claim 1, wherein the metal electrical conductivity line is configured to directly contact with the first electrode.

6. The dye-sensitized solar cell module claimed as claim 1, wherein the metal electrical conductivity line contains silver.

7. The dye-sensitized solar cell module claimed as claim 1, wherein the mixture is concentrated using a rotary evaporator.

8. The dye-sensitized solar cell module claimed as claim 1, wherein the film includes a first titanium dioxide film and a second titanium dioxide film, and wherein the first titanium dioxide film is coated on the nano-particles and the second titanium dioxide film is coated on the first titanium dioxide film.