DGIST Scholar: Enhanced Photovoltaic Performance of Novel TiO2 Photoelectrode on TCO Substrates for Dye-Sensitized Solar Cells

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Enhanced Photovoltaic Performance of Novel TiO2 Photoelectrode on TCO Substrates for Dye-Sensitized Solar Cells

Title: Enhanced Photovoltaic Performance of Novel TiO2 Photoelectrode on TCO Substrates for Dye-Sensitized Solar Cells

Author(s): Nam, Jung Eun ; Kwon, Soon Jin ; Jo, Hyo Jeong ; Yi, Kwang Bok ; Kim, Dae-Hwan ; Kang, Jin-Kyu

Subject: Aligned Rutile TiO2 Nanorod ; Anatase TiO ; Dye-Sensitized Solar Cell ; Dye-Sensitized Solar Cells (DSCs) ; Electro-Chemical Impedance Spectroscopy (EIS) ; Film Growth ; Fluorine Doped Tin Oxide (FTO) ; Heterojunctions ; Hydrothermal Synthesis ; N719 ; Nanocomposites ; Nanorods ; Open-Circuit Photovoltage ; Oxide Minerals ; Photovoltage Spectroscopy ; Rutil-Anatase TiO2 Thin Film ; Rutile TiO ; Seed Layer ; Solar Cells ; Thin-Films ; Tin Oxides ; Titanium Dioxide ; Two-Step Hydrothermal Method

Abstract: In this study, we report synthesis and growth of rutile-anatase TiO2 thin film on fluorine-doped tin oxide (FTO) glass by a two-step hydrothermal method. The effects of additional treatments (i.e., TiCl4 post-treatment and seed layer formation were also studied. Photocurrent-voltage (I-V) measurement of rutile-anatase TiO2 thin film was performed under 1.5 G light illumination. Photovoltaic performance was investigated by incident photon-to-electron conversion efficiency (IPCE), electrochemical impedance spectroscopy (EIS), intensity-modulated photocurrent/ photovoltage spectroscopy (IMVS/IMPS) and open-circuit photovoltage decay (OCVD). Copyright © 2014 American Scientific Publishers. All rights reserved.