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In this report, we use series of cobalt derivatives, conducting polymer and carbon materials as the counter electrodes to replace the conventional platinum in dye sensitized solar cells. The basic cobalt derivatives, Co12 and Co15, showed the capability as the counter electrode with proper short-circuit current (JSC) and open-circuit voltage (VOC), but the poor conductivity and redox ability result...
In this study, we replace the traditional platinum counter electrode (CE) by composite poly(3,4-thylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) and carbon black (CB) in the dye sensitized solar cell. The pure PEDOT:PSS CEs show the good redox potential and conductivity with appropriate open-circuit voltage (Voc) and short-circuit current density (Jsc), but the low redox ability results...
In this report, we discuss the performance change of the DSSCs by the time. It is found that the key factors which influence the device performance of DSSCs depend on the oxidation of working electrode, degradation of dye under illumination, and the solvent evaporate of the electrolyte. The oxidation of working electrode results the increase of VOC while the degradation and desorption of the dye result...
In this experiment, we use carbon black as counter electrodes to replace the conventional platinum electrodes in DSSCs. We discussed the properties and efficiency of carbon black counter electrodes by controlling the annealing temperature from 100 °C to 500 °C with various concentration of 0.5M, and 1.5M. After the proper annealing process, the conductivity and redoxing ability of the carbon black...
In this report, we composite cobalt and carbon black (CB) as the counter electrodes to replace the conventional platinum in dye sensitized solar cells (DSSCs). The basic cobalt derivatives, Co12 and Co15, showed the capability with proper JSC and VOC, but poor FF of the device. After mixing with CB, the device performances were enhanced obviously. The further improve was done by combine Co derivative...
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