SOLAR CELL MEASUREMENT SYSTEM AND SOLAR SIMULATOR

• US 20110241719A1
• Filed: 09/02/2010
• Published: 10/06/2011
• Est. Priority Date: 04/06/2010
• Status: Active Grant

• Current Assignee: Industrial Technology Research Institute
• Original Assignee: Industrial Technology Research Institute
• Inventors: Li, Si Xian, Wu, Hung Sen, Chen, Syh Homg, SHR, Ren Chin, Chen, Chen Wei, Liang, Wei Yun, Wu, Teng Chun
• Granted Patent: US 9,431,954 B2
• Time in Patent Office: Days
• US Class Current: 324/761.01
• CPC Class Codes: H02S 50/10 Testing of PV devices, e.g. of PV modules or single PV cells testing of semiconductor devices during manufacturing H01L22/00
• CPC Class Codes: Y02E 10/50 Photovoltaic [PV] energy

Abstract

A measurement system having a light source, a holding device, and a measurement device. The light source includes a plurality of light emitting diodes (LEDs) configured to generate light beams with different wavelengths, and the emission spectrum of the light source complies with a predetermined standard. The holding device is configured to hold an object under test. The measurement device is configured to measure the electrical properties of the object under test after the object under test is illuminated by the light source.

Claims

1. A measurement system, comprising:

a light source comprising a plurality of light emitting diodes (LEDs) with different wavelengths, wherein the emission spectrum of the light source complies with a predetermined standard;

a holding device configured to hold an object under test; and

a measurement device configured to measure the electrical properties of the object under test after the object under test is illuminated by the light source.

2. The measurement system of claim 1, further comprising a direct current supply device, wherein the direct current supply device has a plurality of driving channels used to drive the plurality of LEDs with different wavelengths and control the intensity or the spectrum of the light source.

3. The measurement system of claim 1, wherein the light source is selected from the group consisting of an optical integrator, an optical integrator array, and the combination thereof, and the light source is configured to enhance the uniformity of the light source.

4. The measurement system of claim 1, further comprising an irradiance measurement device configured to measure the irradiance of the light source.

5. The measurement system of claim 1, further comprising a temperature measurement device configured to measure the temperature of the object under test.

6. The measurement system of claim 1, wherein the object under test is a solar cell.

7. The measurement system of claim 1, wherein the measurement system comprises a load, and the resistance of the load is adjustable.

8. The measurement system of claim 1, wherein the main wavelength of the LEDs with different wavelengths is selected from the group consisting of 300 to 400 nm, 400 to 700 nm, 700 to 1100 nm and the combination thereof.

9. The measurement system of claim 1, wherein the predetermined standard is IEC-60904-9 ed2.0 Class C, JIS C 8933:

2005 Class C, IEC-60904-9 ed2.0 Class A, IEC-60904-9 ed2.0 Class B, JIS C 8933;

2005 Class A, or JIS C 8933;

2005 Class B.

10. The measurement system of claim 6, wherein the electrical property comprises the voltage and current properties of the solar cell.

11. The measurement system of claim 1, wherein the light source comprises a light source array, and the light source array comprises at least five LEDs with different wavelengths.

12. The measurement system of claim 1, wherein the light source generates an approximate irradiance of 100 to 2000 W/m².

13. The measurement system of claim 1, wherein the light source comprises a light source array, and the light source array is composed of a plurality of array elements, wherein each array element comprises an LED with a multi-chip package, and the LED with the multi-chip package comprises a plurality of LED chips with different main wavelengths.

14. The measurement system of claim 1, further comprising a temperature control device to control the temperature of the object under test.

15. A solar simulator, comprising:

a cooling system;

a holding device configured to hold an object under test;

a light source array attached to the cooling system and configured to generate a light source; and

an optical system configured to enhance the uniformity of the object under test illuminated by the light source array;

wherein the light source array comprises a plurality of light emitting diodes (LEDs) with different wavelengths, and the emission spectrum of the solar simulator complies with a predetermined standard.

16. The solar simulator of claim 15, wherein the object under test is a solar cell.

17. The solar simulator of claim 15, wherein the cooling system is selected from the group consisting of a metal substrate circuit board, a ceramic substrate circuit board, a cooling fin, and the combination thereof.

18. The solar simulator of claim 15, wherein the light source is selected from the group consisting of an optical integrator, an optical integrator array, and the combination thereof, and the optical system is configured to enhance the uniformity of the light source.

19. The solar simulator of claim 15, wherein the arrangement of the LEDs is a periodic arrangement.

20. The solar simulator of claim 15, wherein the main wavelength of the LEDs with different wavelengths is selected from the group consisting of 300 to 400 nm, 400 to 700 nm, 700 to 1100 nm, and the combination thereof.

21. The solar simulator of claim 15, wherein the predetermined standard is IEC-60904-9 ed2.0 Class C, JIS C 8933:

2005 Class C, IEC-60904-9 ed2.0 Class A, IEC-60904-9 ed2.0 Class B, JIS C 8933;

2005 Class A, or JIS C 8933;

2005 Class B.

22. The solar simulator of claim 15, wherein the light source array comprises at least five kinds of LED with different wavelengths.

23. The solar simulator of claim 15, wherein the light source array is composed of a plurality of array elements, and the area of each array element is approximately between 1 cm² and 50 cm².

24. The solar simulator of claim 15, wherein the light source array generates an approximate irradiance of 100 to 2000 W/m².

25. The solar simulator of claim 15, wherein the light source array is composed of a plurality of array elements, each array element comprises an LED with a multi-chip package, and the LED with the multi-chip package comprises a plurality of LED chips with different main wavelengths.

26. The solar simulator of claim 15, wherein the light source array is composed of a plurality of array elements, and each array element at least comprises an LED having fluorescence powder.

27. An aging test system for solar cells, comprising:

a light source comprising a plurality of light emitting diodes (LEDs) with different wavelengths, wherein the emission spectrum of the light source complies with a predetermined standard;

a cooling system configured to attach to the light source;

a holding device configured to hold an object under test illuminated by the light source;

an irradiance measurement device configured to measure the irradiance of the light source; and

a temperature measurement device configured to measure the temperature of the object under test.

28. The aging test system of claim 27, further comprising a direct current supply device, wherein the direct current supply device has a plurality of driving channels used to drive the plurality of the LEDs with different wavelengths and control the intensity or the spectrum of the light source.

29. The aging test system of claim 27, wherein the light source is selected from the group consisting of an optical integrator, an optical integrator array, and the combination thereof, and the light source is configured to enhance the uniformity of the light source.

30. The aging test system of claim 27, wherein the predetermined standard is IEC-60904-9 ed2.0 Class C, JIS C 8933:

2005 Class C, IEC-60904-9 ed2.0 Class A, IEC-60904-9 ed2.0 Class B, JIS C 8933;

2005 Class A, or JIS C 8933;

2005 Class B.

31. The aging test system of claim 27, wherein the light source comprises a light source array, the light source array is composed of a plurality of array elements, and each array element comprises at least five LEDs with different wavelengths.

32. The aging test system of claim 27, wherein the light source generates an approximate irradiance of 100 to 2000 W/m².

33. The aging test system of claim 27, wherein the light source array is composed of a plurality of array elements, each array element comprises an LED with a multi-chip package, and the LED with the multi-chip package comprises a plurality of LED chips with different main wavelengths.