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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/5863


    Title: The physical properties and photoresponse of AgIn5S8 polycrystalline film electrodes fabricated by chemical bath deposition
    Authors: Chao-Ming Huang (黃昭銘)
    Kong-Wei Cheng
    Guan-Ting Pan
    Wen-Sheng Chang
    Tai-Chou Lee
    Thomas C.K. Yang
    Keywords: Photoelectrodes
    X-ray diffraction
    Optical properties
    Photocurrent density
    Date: 2007-03-23
    Issue Date: 2009-11-20 09:54:48 (UTC+8)
    Abstract: The AgIn5S8 polycrystalline films were grown on indium–tin-oxide-coated glass substrates by using chemical bath deposition. New procedures
    for the growth of AgIn5S8 films are presented. The solutions containing silver nitrate, indium nitrate, triethanolamine, ammonium nitrate and
    thioacetamide in acidic solution were used for the growth of AgIn5S8 film electrodes. The influences of various deposition parameters on structural,
    optical, and electrical performances of films have been investigated. The X-ray diffraction patterns of the samples demonstrate the presence of
    polycrystalline structures of AgIn5S8 phase in these films and show AgIn5S8 phase is the major crystal structure. With different substrates, the
    different crystal structures were obtained. The thickness, band gaps and carrier densities of these samples determined from transmittance spectra and
    electrochemical analysis are in the range of 647–1123 nm, 1.70–1.73 eV and 4.02×l014–6.36×l014 cm−3, respectively. The flat band potentials of
    these samples are located between−0.293 and−0.403V versus normal hydrogen electrode with the Mott-Schottky measurements. The conduction
    bands and valance bands of films determined from flat band potentials are in the range of −0.517 to −0.618V, and +1.213 to +1.082V versus
    normal hydrogen electrode. The maximum photocurrent density of samples prepared in this study with external potential kept at 3.5V was found
    to be 6.0 mA/cm2 under the illumination with white light intensity kept at 100 mW/cm2.
    Relation: Journal of Photochemistry and Photobiology A: Chemistry 190 (2007) 77–87
    Appears in Collections:[環境工程系所] 期刊論文

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