Abstract

This paper focuses on improvised fabrication of Dye sensitized solar cells (DSSCs) using nanoflower shaped ZnO and chlorophyll dye sensitizer. Dye extracted from Terminalia Catappa leaves contains chlorophyll pigments a,b. Chemical bath deposition technique is used to produce nanoflower-shaped ZnO directly on conducting glass substrate. ZnO nanoflowers absorb dye by dip coating. Dye captures solar radiation and delivers the energy to ZnO anode through electrons. ZnO’s morphology analyzed by scanning electron microscopy shows hexagonal patterned nanoflowers. Electrical characteristics of cell are measured under AM 1.5G illumination. The constructed DSSC has shown Voc of 0.17 V, Isc of 1.652 mA, fill factor (FF) of 0.36 and cell power conversion efficiency (ɳ) of 0.101%.

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