Photoluminescence imaging inspection system for multi-junction solar cells

Abstract

A photoluminescence image inspection system for multi-junction solar cells is disclosed. The photoluminescence image inspection system includes a photoelectric excitation module adapted to illuminate a multi-junction solar cell to excite the multi-junction solar cell to emit light and includes a light source and a voltage source, wherein the light source is used to provide light irradiation to the multi-junction solar cell; the voltage source is used to provide a voltage to the multi-junction solar cell; a detection module disposed on one side of the photoelectric excitation module and adapted to capture a photoluminescence signal of the multi-junction solar cell; a filter module disposed in front of the detection module for filtering out light emitted from the light source in the same wavelength band as the photoluminescence signal of the multi-junction solar cell.

Dependencies are inferred from the claim text.