Thermally induced ionization of 5d1 state of Ce3+ ion in Gd3Ga3Al2O12 host
作者： Yuntao Wu , Martin Nikl , Vitezslav Jary , Guohao Ren
DOI: 10.1016/J.CPLETT.2013.04.068
关键词: Ionization 、 Atomic physics 、 Irradiation 、 Photoluminescence excitation 、 Excited state 、 Chemistry 、 Ion 、 Spectral line 、 Luminescence 、 Nanosecond
摘要: Abstract We studied the processes occurring in 5d1 excited state of Ce3+ Gd3Ga3Al2O12 (GGAG) host. Energy transfer from Gd3+ to was evidenced by photoluminescence excitation spectra emission. measured temperature dependences prompt nanosecond decays and millisecond delayed recombination GGAG The decrease decay times above approximately 200 K is due thermally induced ionization Ce3+. Thermal stimulated luminescence glow curve measurements after X-ray or UV (within 4f–5d1 absorption Ce3+) irradiation at RT provide another support for effect around this temperature.
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