Applications of Cu@C Nanoparticles in New Dye-Sensitized Solar Cells

Chang Yu Liao; H. Paul Wang; Fu Lin Chen; Chien Hua Huang; Yasuhiro Fukushima

doi:10.4028/www.scientific.net/AMR.47-50.1121

Paper Titles

Fabrication of Organic Silk Fibroin/Multiwalled Carbon Nanotube Composite Cryogels by Freeze-Drying Method
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Multiwalled Carbon Nanotubes-Incorporated Polyurethane Nanocomposites
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Nanosize Copper Dispersed Ionic Liquids as an Electrolyte of New Dye-Sensitized Solar Cells
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Sensing of Ethanol with Nanosize FeZnO Thin Films
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Applications of Cu@C Nanoparticles in New Dye-Sensitized Solar Cells
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Chemical Structure of Nanosize Copper Wires in MCM-41
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Analysis of Infrared Thermography during Tensile Test of GFRP
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Thermal Viscoelastic Analysis of 3D Fabric Nanocomposites
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Periodic and Chaotic Motions of a Simply Supported FGM Plate with Two Degrees-of-Freedom
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 47-50Applications of Cu@C Nanoparticles in New...

Applications of Cu@C Nanoparticles in New Dye-Sensitized Solar Cells

Abstract:

To enhance the efficiency of a newly developing dye-sensitized solar cell (DSSC), Cu@C (7-20 nm) nanoparticles dispersed electrolyte has been studied. Experimentally, the efficiencies (η) of the DSSC are in the range of 2.70-4.09% with a short-circuit photocurrent density (Jsc) of 5.775-9.910 mA/cm2. Interestingly, it is found that addition of 1% of Cu@C (7 nm) nanoparticles in the molten salt (1,2-dimethyl-3-propylimidazolium iodide (DMPII)) conjugated electrolyte leads to an enhancement of 11% in the conversion efficiency (η) of 4.06%. By XANES, about 17-32% of copper in the core of Cu@C are oxidized to Cu2O (10-17%) and CuO (5-17%) in the molten salt in the electrolyte.