Efficient storage of sunlight in the form of charge is accomplished by designing and implementing... more Efficient storage of sunlight in the form of charge is accomplished by designing and implementing a photo-supercapacitor (PSC) with a novel, cost-effective architecture.
Photo-supercapacitors (PSCs) combine functions of energy harvesting and storage in a single devic... more Photo-supercapacitors (PSCs) combine functions of energy harvesting and storage in a single device, and in this study, a new architecture for a PSC is designed and implemented. Cadmium sulfide (CdS) quantum dots/hibiscus (hb) dye co-sensitized TiO is used as the solar cell. Poly(3,4-ethylenedioxypyrrole) (PEDOP)@manganese dioxide (MnO) is employed as the counter electrode (CE) for the solar cell and also as the electrodes for the symmetric supercapacitor. The two ends of a long flat current collector support two spatially separated PEDOP@MnO coatings, which serve as the CEs for the TiO/hb/CdS photoanode and yet another PEDOP@MnO electrode in sandwich configurations. In this cell, under 1 sun (100 mW cm) illumination, the TiO/hb/CdS photoanode undergoes charge separation and by channeling the photocurrent to the PEDOP@MnO electrodes, the symmetric cell part is charged to a voltage of 0.72 V. The PSC delivers a specific capacitance of 183 F g, an energy density of 13.2 Wh kg, and a po...
Efficient storage of sunlight in the form of charge is accomplished by designing and implementing... more Efficient storage of sunlight in the form of charge is accomplished by designing and implementing a photo-supercapacitor (PSC) with a novel, cost-effective architecture.
Photo-supercapacitors (PSCs) combine functions of energy harvesting and storage in a single devic... more Photo-supercapacitors (PSCs) combine functions of energy harvesting and storage in a single device, and in this study, a new architecture for a PSC is designed and implemented. Cadmium sulfide (CdS) quantum dots/hibiscus (hb) dye co-sensitized TiO is used as the solar cell. Poly(3,4-ethylenedioxypyrrole) (PEDOP)@manganese dioxide (MnO) is employed as the counter electrode (CE) for the solar cell and also as the electrodes for the symmetric supercapacitor. The two ends of a long flat current collector support two spatially separated PEDOP@MnO coatings, which serve as the CEs for the TiO/hb/CdS photoanode and yet another PEDOP@MnO electrode in sandwich configurations. In this cell, under 1 sun (100 mW cm) illumination, the TiO/hb/CdS photoanode undergoes charge separation and by channeling the photocurrent to the PEDOP@MnO electrodes, the symmetric cell part is charged to a voltage of 0.72 V. The PSC delivers a specific capacitance of 183 F g, an energy density of 13.2 Wh kg, and a po...
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