Mechanism of Concentration Quenching of the Fluorescence from 1T2g of Ni2+ in KZnF3
作者： James Ferguson , Hiromitsu Masui
DOI: 10.1143/JPSJ.42.1640
关键词: Cross relaxation 、 Resonant inductive coupling 、 Concentration quenching 、 Fluorescence 、 Ion 、 Atomic physics 、 Quantum 、 Multipole expansion 、 Materials science 、 Decay curve
摘要: Decay curves and relative quantum efficiencies of Ni 2+ fluorescence ( 1 T 2 g → 3 A ) in KZnF : crystals various concentrations were measured at temperatures from 22 K to 297 K. The higher than 0.59% exhibit non-exponential decays, which are attributed non-radiative resonant energy transfer between a pair ions (cross relaxation), analyzed along the theories Dexter Inokuti Hirayama. experimental results can be explained by exchange mechanism more consistently electric multipole mechanisms.
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