Spatial arrangement of carbon nanotubes in TiO2 photoelectrodes to enhance the efficiency of dye-sensitized solar cells |
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Authors: | Nath Narayan Chandra Deb Sarker Subrata Ahammad A J Saleh Lee Jae-Joon |
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Institution: | Department of Advanced Technology Fusion, Konkuk University, Seoul, Korea. |
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Abstract: | Three electrode structures with different spatial arrangements of carbon nanotubes (CNTs) in the mesoporous TiO(2) layer were employed in dye-sensitized solar cells to study the effect of surface states at the interface formed by the incorporation of CNTs. It was found that the decay of open circuit voltage (V(oc)) was significantly minimized by avoiding the direct contact of nanotubes to the conducting substrate by introducing a thin buffer layer of TiO(2) while maintaining the superior electron collection efficiency from the incorporation of nanotubes. |
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