Wei-Hao ChiuAcademic Profile

International Journal Publication

High efficiency flexible dye-sensitized solar cells by multiple electrophoretic depositions

Author affiliations and roles
  1. aNational Yang Ming Chiao Tung University
  2. bIndustrial Technology Research Institute
  3. cNational Cheng Kung University
  • *Corresponding author: Hsieh, Wen-Feng.

Journal of Power Sources, 196, 3683–3687 (2011).

Research topic: Dye-Sensitized Solar Cells

Abstract

A multiple electrophoretic deposition (EPD) of binder-free TiO2 photoanode has been developed to successfully fill the crack occurring after air-drying on the first EPD-TiO2 film surface. With the slow 2nd EPD, high quality TiO2 thin films are acquired on flexible ITO/PEN substrates at room temperature and the device efficiency of the dye-sensitized solar cell achieved 5.54% with a high fill factor of 0.721. Electrochemical impedance spectroscopy measurements analyze the great enhancement of the photovoltaic performance through multiple EPD. The electron diffusion coefficient improved by about 1 order of magnitude in crack-less multiple-EPD TiO2 films. With the scattering layer, the device reveals a high conversion efficiency of up to 6.63% under AM 1.5 G one sun irradiation, having a short circuit current density, open circuit voltage, and filling factor of 12.06 mA cm(-2), 0.763 V and 0.72, respectively. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.

Keywords

Electrophoretic deposition (EPD)Titanium dioxide (TiO2)Dye-sensitized solar cells (DSCs)Low-temperature fabricationPhotovoltaics
DOI ↗93 Google Scholar citations ↗72 OpenAlex citations ↗FWCI 2.69Top 10.0% normalized citations67 Crossref citations ↗74 Mendeley readers ↗

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