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Browsing by Author "Wang, Yu-Hua"

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    Charge transfer luminescence of hafnates under synchrotron vacuum ultraviolet excitation
    (2014)
    Wang, De-Yin
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    Huang, Chien-Hao
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    Cheng, Bing-Ming
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    Chen, Teng-Ming
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    Wang, Yu-Hua
    Under synchrotron vacuum ultraviolet excitation, three different hafnates (BaHf(PO4)(2), BaHf(BO3)(2) and BaHfSi3O9) show self-activated luminescence with peaks ranging from 275-335 nm, which is attributed to the charge-transfer luminescence from the hafnate (HfO68-) group. Upon doping Eu2+ into BaHfSi3O9, host sensitization of Eu2+ emission via hafnate intrinsic emission is demonstrated.