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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 31, Number 4
BKCSDE 31(4)
April 20, 2010

Title	Visible-photoresponsive Nitrogen-Doped Mesoporous TiO₂ Films for Photoelectrochemical Cells
Author	Jae Young Bae, Tae Kwan Yun, Kwang Soon Ahn, Jae Hong Kim
Keywords	Nitrogen-doped TiO₂, Visible-photoresponsive, Photoelectrochemical cells, Mesoporous electrodes
Abstract	Nitrogen-doped TiO₂ (TiO₂:N) nano-particles with a pure anatase crystalline structure were successfully synthesized through the hydrolysis of TiCl₄ in an ammonia aqueous solution. The samples were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), N₂-sorption, and UV-vis diffuse reflectance spectra (UV-vis DRS) techniques. The absorption edge of nitrogen-doped TiO₂ shifted into the visible wavelength region. The photoelectrochemical (PEC) performances were investigated for the TiO₂ mesoporous electrodes doped with different nitrogen concentrations. The TiO₂:N electrodes exhibited much higher PEC responses compared to the pure TiO₂ electrode because of the significantly enhanced visible-photoresponsibility of the TiO₂:N electrodes.
Page	925 - 928
Full Text	PDF

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