Heterojunction TiO 2 /PbS quantum dot solar cells
2016
PbS Quantum dots are promising materials for photovoltaic applications due to their absorption in the NIR region. In this work monodisperse lead sulfide quantum dots are synthesized using colloidal procedures using oleic acid and oleylamine as the stabilizing agents and 1-octadecene as the non-coordinating solvent. Heterojunction solar cell with FTO/TiO2/PbS/Au structure is fabricated and characterized. The current-voltage characteristics shows the roll-over effect that refers to the saturation of photocurrent in forward bias and crossover effect which occurs when the light and dark J-V curves intersect.
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