Use of High Surface Area TiO<sub>2</sub> Nanosheet in Dye-sensitized Solar Cell

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<jats:title>ABSTRACT</jats:title><jats:p>High surface area nanosheet TiO<jats:sub>2</jats:sub> with mesoporous structure were synthesized by hydrothermal method at 130 °C for 12 h. The samples characterized by XRD, SEM, TEM, SAED, and BET surface area. The nanosheet structure was slightly curved and approximately 50-100 nm in width and several nanometers in thickness. The as-synthesized nanosheet TiO<jats:sub>2</jats:sub> had average pore diameter about 3-4 nm. The BET surface area and pore volume of the sample were about 642 m<jats:sup>2</jats:sup>/g and 0.774 cm<jats:sup>3</jats:sup>/g, respectively. The solar energy conversion efficiency (η) of the cell using nanorods/nanoparticles TiO<jats:sub>2</jats:sub> (from the nanosheet calcined at 450 °C for 2 h) with mesoporous structure was about 7.08 % with Jsc of 16.35 mA/cm<jats:sup>2</jats:sup>, Voc of 0.703 V and ff of 0.627; while η of the cell using P-25 reached 5.82 % with Jsc of 12.74 mA/cm<jats:sup>2</jats:sup>, Voc of 0.704V and ff of 0.649.</jats:p>

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  • MRS Proceedings

    MRS Proceedings 951 2006-01-01

    Springer Science and Business Media LLC

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