The photovoltaic efficiency of dye sensitized solar cell assembled using carbon capsulated TiO2 electrode |
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| Affiliation: | 1. Department of Environment, Hamedan Branch, Islamic Azad University, Hamedan, Iran;2. Young Researchers & Elite Club, Hamedan Branch, Islamic Azad University, Hamedan, Iran;3. Department of Chemistry, Ilam University, Ilam, Iran;1. Physical Chemistry Department, Laboratory of Surface Chemistry and Catalysis, National Research Center, Dokki, Cairo, Egypt;2. Zoology Department, College of Science, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia;3. Electron Microscope and Thin Films Department, National Research Center (NRC), El- Behooth Street, Giza 12622, Egypt |
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| Abstract: | Carbon-encapsulated TiO2 was synthesized and its applications to dye-sensitized solar cells (DSSCs) were evaluated. When carbon-encapsulated TiO2 was applied to DSSCs as a scattering material, the efficiency was enhanced considerably compared to that using only double-layered, nanometer-sized pure TiO2. The photovoltaic efficiency of the carbon-encapsulated TiO2-DSSCs was approximately 3.59%, while it was 2.87% for the pure TiO2-DSSCs. The quantum efficiencies evaluated from IPCE spectroscopy were better on the carbon-encapsulated TiO2-DSSCs compared to of a TiO2-DSSCs. PL spectroscopy showed that the rate of recombination between the holes and electrons on the carbon-encapsulated TiO2 were lower than that on pure TiO2. |
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| Keywords: | Dye-sensitized solar cells Scattering material IPCE PL |
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