English, Article edition: PREPARATION AND CHARACTERIZATION OF SOLâGEL-DERIVED TiO2/ITO PHOTOELECTRODES CHIA-HUNG LIANG; HUNG-YI CHANG; TSZ-WEI LIOU; ...

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Bookmark: http://trove.nla.gov.au/version/84978
Physical Description
  • article
Language
  • English

Edition details

Title
  • PREPARATION AND CHARACTERIZATION OF SOLâGEL-DERIVED TiO2/​ITO PHOTOELECTRODES
Author
  • CHIA-HUNG LIANG
  • HUNG-YI CHANG
  • TSZ-WEI LIOU
  • HUEY-ING CHEN
Physical Description
  • article
Notes
  • In this work, nanocrystalline TiO2/​ITO electrodes were prepared by solâgel method starting from tetrabutyl orthotitanate (Ti(OBun)4) reacted with hydrogen peroxide in the ice-water bath. The solâgel derived TiO2 films were characterized by XRD, SEM, BET, and UV/​Vis absorption spectroscopic techniques. The preparation conditions, including the number of coats and calcination temperature, were also investigated. Furthermore, PEC cells were constructed for testing the activities of prepared TiO2/​ITO photoelectrodes. The photo-currents for hydrogen production via the PEC reaction were measured under UV irradiation (λmax =​ 253.7 nm). The experimental results showed that the solâgel derived TiO2 films calcined at 300°Câ600°C were anatase structure and they showed a maximum UV/​Vis absorption at about 380 nm. Moreover, from the result of PEC reactions, it was found that the TiO2/​ITO photoelectrode (calcined at 600°C, with the thickness of TiO2 layer of about ~0.2 μm) demonstrated a large saturation current (0.326 mA/​cm2) with a quite high photoelectrochemical conversion efficiency of 2.39%.
  • Titanium dioxide, TiO2, solâgel, photoelectrochemical, photoelectrode
  • RePEc:wsi:srlxxx:v:15:y:2008:i:01:p:161-168
Language
  • English
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