# US 2014/0150847 A1 · Solar cell module and method of fabricating the same

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- Number: US 2014/0150847 A1
- Document ID: US20140150847A1
- Status: Published application
- Kind: A1
- Application number: 13/757,011
- Filed: 2013-02-01
- Published: 2014-06-05
- Earliest claimed: 2012-11-30
- Assignees: National Chiao Tung University
- Applicants: National Chiao Tung University
- Inventors: Fang-Chung Chen; Chun-Hsien Chou; Jui-Kang Chuang; Yen-Tseng Lin
- Web page: https://patentgrep.com/patent/US20140150847A1

## CPC

- H10F 77/488: {Reflecting light-concentrating means, e.g. parabolic mirrors or concentrators using total internal reflection}
- H10F 19/804: {Materials of encapsulations}
- H10F 77/45: Wavelength conversion means, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements
- Y02E 10/52: PV systems with concentrators
- H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A solar cell module and a method of fabricating the same are provided. The method includes providing a solution having a luminescent dye, mixing the solution with a first waveguide material to obtain a first mixture, and placing the first mixture and a second mixture having nano-powder and a second waveguide material into a mold to form a waveguide body having a first layer body and a second layer body stacked on the first layer body. The waveguide body has a top surface, a bottom surface opposing to the top surface, and a lateral surface connecting the top surface with the bottom surface. At least one solar cell is disposed in the mold and embedded in the waveguide body, to enlarge a light reception area and light collection.

## Claims

### Claim 1

A method of fabricating a solar cell module, comprising the steps of:
(a) providing a solution having a luminescent dye;
(b) mixing the solution with a first waveguide material to obtain a first mixture; and
(c) placing the)first mixture and a second mixture having nano-powder and a second waveguide material into a mold to form a waveguide body having a first layer body and a second layer body stacked on the first layer body, wherein the waveguide body has a top surface, a bottom surface opposing to the top surface, and a lateral surface connecting the top surface with the bottom surface, and at least a solar cell is disposed in the mold and embedded in the waveguide body.

### Claim 2 (depends on 1)

The method of claim 1, wherein step (c) further comprises curing the first mixture and the second mixture to form the first layer body and the second layer body, respectively, with a thermal curing agent or a light curing agent, thereby forming the waveguide body.

### Claim 3 (depends on 1)

The method of claim 1, wherein the luminescent dye is an organic luminescent dye or a luminescent quantum dot.

### Claim 4 (depends on 1)

The method of claim 1, wherein the solution comprises an organic solvent, and the luminescent dye is dissolved in the organic solvent.

### Claim 5 (depends on 4)

The method of claim 4, wherein the organic solvent is an alcohol, ether or ketone.

### Claim 6 (depends on 1)

The method of claim 1, wherein the first waveguide material and the second waveguide material are respectively selected from the group consisting of polymethylmethacrylate (PMMA), polyvinyl alcohol (PVA), polyvinyl pyrrolidone (PVP) and polydimethylsiloxane (PDMS).

### Claim 7 (depends on 1)

The method of claim 1, wherein step (c) comprises partially curing the first mixture and the second mixture, allowing the at least a solar cell to he embedded in the waveguide body; and shaping the waveguide body.

### Claim 8 (depends on 1)

The method of claim 1, wherein the nano-powder is one selected from the group consisting of TiO2, BaSO4, ZnS, nylon powder and metal oxide particles.

### Claim 9 (depends on 1)

The method of claim 1, wherein step (c) further comprises heating the first mixture to remove the organic solvent.

### Claim 10 (depends on 1)

The method of claim 1, wherein the mold has a micro-structure disposed on an inner wall thereof, and a light-guiding structure corresponding to the micro-stricture is formed on at least one of the top surface and the bottom surface of the waveguide body.

### Claim 11

A solar cell module, comprising:
a waveguide body having a first layer body and a second layer body stacked on the first layer body, wherein the first layer body has a first waveguide material and a luminescent dye, the second layer body has a second waveguide material and nano-powder, and the waveguide body has a top surface, a bottom surface opposing to the top surface, and a lateral surface connecting the top surface with the bottom surface; and
at least a solar cell embedded in the waveguide body.

### Claim 12 (depends on 11)

The solar cell module of claim 11, wherein the luminescent dye is an organic luminescent dye or a luminescent quantum dot.

### Claim 13 (depends on 11)

The solar cell module of claim 11, wherein the first waveguide material and the second waveguide material are respectively selected from the group consisting of polymethylmethacrylate (PMMA), polyvinyl alcohol (PVA), polyvinyl pyrrolidone (PVP) and polydimethylsiloxane (PDMS).

### Claim 14 (depends on 11)

The solar cell module of claim 11, wherein the nano-powder is one selected from the group consisting of TiO2, BaSO4, ZnS, nylon powder and metal oxide particles.