Solar cell measurement system and solar simulator

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 illumination at the object under test by the light source array;
• wherein the light source array comprises a plurality of light emitting diodes (LEDs) with different wavelengths, the emission spectrum of the solar simulator complies with a standard, and the standard is IEC-60904-9 ed2.0 or JIS C 8933:2005, wherein the light source further comprises an optical reflective integrator, an optical reflective integrator array, or the combination thereof and no filter, and wherein the optical reflective integrator, the optical reflective integrator array or the combination thereof comprises reflection mirrors configured to mix light from the LEDs so as to enhance the uniformity of the light source, and a plane on which the reflection mirrors are arranged is different from a plane on which the LEDs are arranged.

An aging test system for solar cell, the aging test 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 standard, and the standard is IEC-60904-9 ed2.0 or JIS C 8933:2005;
• 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, wherein the light source further comprises an optical reflective integrator, an optical reflective integrator array, or the combination thereof and no filter, and wherein the optical reflective integrator, the optical reflective integrator array or the combination thereof comprises reflection mirrors configured to mix light from the LEDs so as to enhance the uniformity of the light source, and a plane on which the reflection mirrors are arranged is different from a plane on which the LEDs are arranged.

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 standard, and the standard is IEC-60904-9 ed2.0 or JIS C 8933:2005;
• 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, wherein the light source further comprises an optical reflective integrator array and no filter, and wherein the optical reflective integrator array comprises reflection mirrors configured to mix light from the LEDs so as to enhance the uniformity of the light source, and a plane on which the reflection minors are arranged is different from a plane on which the LEDs are arranged.