Defect detection of solar cells in electroluminescence images using Fourier image reconstruction

• Published in: Solar energy materials and solar cells Vol. 99; pp. 250 - 262
• Main Authors: Tsai, Du-Ming, Wu, Shih-Chieh, Li, Wei-Chen
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.04.2012; Elsevier
• Subjects: Applied sciences; Defect detection; Direct energy conversion and energy accumulation; Electrical engineering. Electrical power engineering; Electrical power engineering; Energy; Exact sciences and technology; Fourier transform; Natural energy; Photoelectric conversion; Photovoltaic conversion; Solar cell; Solar cells. Photoelectrochemical cells; Solar energy; Solar thermal conversion; Solar thermal power plants; Surface inspection; Testing. Reliability. Quality control; Solar cell; Fourier transform; Surface inspection; Defect detection; CCD imaging; Fourier transformation; Electroluminescence; Experimental study; Implementation; Image reconstruction; Grain boundary; Crystalline material; Luminous intensity; Computation time; Solar power plant; Automatic measurement; Imaging; Solar energy; Silicon; Crack

Solar power is an attractive alternative source of electricity. Solar cells, which form the basis of a solar power system, are mainly based on crystalline silicon. Many defects cannot be visually observed with the conventional CCD imaging system. This paper presents defect inspection of multicrystal...