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Double-shelled copper chalcogenide (Cu2−xSe and Cu7S4) nanocages of about 250 nm sizes are synthesized respectively by using Cu2O nanocubes as sacrificial precursor via Kirkendall diffusion and etching. Both the double-shelled Cu2−xSe and Cu7S4 nanocages are demonstrated to be excellent counter electrode (CE) materials in quantum dot-sensitized solar cells (QDSSCs) and exhibit high electrocatalytic...
The preferred platinum counter electrode (CE) has been a burden for commercialization of dye-sensitized solar cell (DSSC) due to high expense and chemical corrosion by liquid electrolyte. In the current study, we have successfully realized the multistep deposition of platinum alloy CEs including PtNi, PtFe, and PtCo for liquid-junction DSSC applications. The preliminary results demonstrate that the...
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