Correlations of Cu(In, Ga)Se2 imaging with device performance, defects, and microstructural properties PROJECT TITLE :Correlations of Cu(In, Ga)Se2 imaging with device performance, defects, and microstructural propertiesABSTRACT:Camera imaging techniques have been used for the characterization of Cu(In,Ga)Se2 (CIGS) solar cells. Photoluminescence (PL) imaging shows brightness variations after the deposition of the CIGS layer that persist through CdS deposition and subsequent processing steps to finish the devices. PL and electroluminescence imaging on finished cells show a correlation to the devices’ corresponding efficiency and open-circuit voltage (VOC), and dark defect-related spots correspond to bright spots on images from illuminated lock-in thermography (LIT) and forward-bias dark LIT. These image-detected defect areas are weak diodes and shunts. Imaging provides locations of defects detrimental to solar cell performance. Some of these defects are analyzed in more detail by scanning electron microscopy using cross-sectional views. Did you like this research project? To get this research project Guidelines, Training and Code... Click Here facebook twitter google+ linkedin stumble pinterest Charge transport and relaxation in hydrogenated barium titanate films and their potential for integrated supercapacitors Tin dioxide as an alternative window layer for improving the damp-heat stability of copper indium gallium diselenide solar cells
