Abstract
CuInSe 2 powders synthesized by ball milling were printed on In 2 S 3 /TiO 2 /FTO/glass substrates, resulting in superstrate solar cells. Although particle structure of CuInSe 2 in the layer remained after heating at 600 °C under N 2 gas, photovoltaic effects were observed; the open-circuit voltage and short-circuit current density were 0.45 V and 5.6 mA/cm 2 , respectively. The effects of annealing time on the structural, optical and photovoltaic properties of CuInSe 2 were studied by scanning electron micrograph (SEM), X-ray diffraction (XRD), t hermogravimetric analysis (TGA) and UV-Vis reflectance absorption spectroscopy. The CuInSe 2 solar cells were printed in air ambient without vacuum processing and without toxic and explosive chemicals (e.g., hydrazine, H 2 Se and H 2 S), which can offer a promising strategy for future research and industrial investigation into cost-effective photovoltaic systems. Key words : Photovoltaic system; Photovoltaic effects; CuInSe 2 solar cells
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