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  • World Scientific Pub Co Pte Ltd  (2)
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  • World Scientific Pub Co Pte Ltd  (2)
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  • English  (2)
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  • 1
    Online Resource
    Online Resource
    World Scientific Pub Co Pte Ltd ; 2017
    In:  International Journal of Modern Physics B Vol. 31, No. 16-19 ( 2017-07-30), p. 1744069-
    In: International Journal of Modern Physics B, World Scientific Pub Co Pte Ltd, Vol. 31, No. 16-19 ( 2017-07-30), p. 1744069-
    Abstract: Thin films of TiO 2 -doped ZnO (TZO) with TiO 2 contents from 0.5 to 3.0 wt.% were deposited on glass substrates by RF magnetron sputtering. The microstructures and optoelectronic properties of the TZO films were characterized by XRD, Hall effect analyzer, UV–VIS spectrophotometry and physical property measurement (PPMS-9). Results indicate that the microstructure and optoelectronic properties of TZO films are strongly affected by the TiO 2 content. The best optoelectronic properties were obtained with the film having 2.0 wt.% TiO 2 . This film had superior crystal properties, high average optical transmittance (89.0%), and the lowest resistivity (9.58 × 10[Formula: see text] [Formula: see text] ⋅ cm). Furthermore, the resistivity of this film changed with temperature between 10 and 350 K, they experienced an initial decrease followed by an increase as the temperature increased.
    Type of Medium: Online Resource
    ISSN: 0217-9792 , 1793-6578
    RVK:
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2017
    Location Call Number Limitation Availability
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  • 2
    Online Resource
    Online Resource
    World Scientific Pub Co Pte Ltd ; 2017
    In:  International Journal of Modern Physics B Vol. 31, No. 16-19 ( 2017-07-30), p. 1744068-
    In: International Journal of Modern Physics B, World Scientific Pub Co Pte Ltd, Vol. 31, No. 16-19 ( 2017-07-30), p. 1744068-
    Abstract: The Y 3 Al 5 O[Formula: see text] (YAG):Ce ceramic rods and single crystals were prepared by solid state reaction and optical floating zone method, respectively. The XRD results showed that the phases in the YAG:Ce ceramics are mixture of YAG phase and YAlO 3 (YAP) phase. There is only a single YAG phase in the single crystals of YAG:Ce. The mean positron lifetime of the YAG:Ce crystal decreases with increasing Ce content, and reaches minimum at 1 at.% Ce, then increases with Ce content. The mean positron lifetime of the YAG:Ce crystal is higher than that of YAG:Ce ceramic with the same chemical composition. The UV–visible absorption spectra of the YAG:Ce crystals indicated that the transmittances of the YAG:Ce crystals are higher than 90% in the wavelength range from 550 nm to 800 nm. The photoluminescence spectra of the YAG:Ce crystals showed wide luminescence emission peaks located in the range of 525–529 nm. A relatively high luminescence intensity is found in the YAG:Ce crystal with 1 at.% Ce. With further increase of Ce content, the luminescence decreases due to the fluorescence quenching effect.
    Type of Medium: Online Resource
    ISSN: 0217-9792 , 1793-6578
    RVK:
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2017
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
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