Spectroscopic properties of Cs2ZnCl4:Co2+
作者： P.J. Dereń , J. Derouet , P. Porcher , D. Svoronos
DOI: 10.1016/S0022-2860(96)09377-5
关键词: Single crystal 、 Chemistry 、 Absorption (chemistry) 、 Dipole 、 Atomic physics 、 Analytical chemistry 、 Coupling constant 、 Ion 、 Crystal 、 Absorption spectroscopy 、 Emission spectrum
摘要: Abstract The absorption and luminescence spectra of a Cs 2 ZnCl 4 single crystal doped with Co 2+ ions are reported. Two strong, broad peaks in the assigned to A → T 1 ( F ) P transitions, respectively. Other bands belong transitions from ground level levels arising split G, H, P, D, terms. were dependent on polarisation. field parameter Dq Racah parameters calculated as = −325 cm −1 , B 728 C 3349 . spin-orbit coupling constant λ was found equal 162 emission band centred at 11 800 transition. Decay curves observed non-exponential, its short decay time, about 50 ns, indicating electric dipole character strong influence non-radiative processes.
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