Luminescence and energy transfer in Lu3Al5O12 scintillators co-doped with Ce3+ and Pr3+

J.M. Ogiegło; A.K. Zych; T. Jüstel; A. Meijerink; R.C. Ronda

doi:10.1016/j.optmat.2012.08.010

Luminescence and energy transfer in Lu3Al5O12 scintillators co-doped with Ce3+ and Pr3+

J.M. Ogiegło, A.K. Zych, T. Jüstel, A. Meijerink, R.C. Ronda

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Abstract

Lu3Al5O12:Ce3+ (LuAG:Ce) is a scintillator with a fast response time. The light yield is lower than theoretically expected and to increase the light yield co-doping with Pr3+ is investigated. To better understand the energy flow to the Ce3+ ion, first low temperature emission and excitation spectra of Pr3+ doped LuAG were investigated, allowing the accurate determination of the zero-phonon lines for the 5d states of Pr3+ in LuAG and the temperature dependent energy transfer from the Self Trapped Exciton to Pr3+. In addition VUV excitation and soft X-ray excited emission spectra of the co-doped LuAG:Ce,Pr were studied. The results show that energy transfer from Pr3+ to Ce3+ occurs but it is followed by back transfer to the 4f states of Pr3+.

Original language	English
Pages (from-to)	322-331
Number of pages	10
Journal	Optical Materials
Volume	35
Issue number	3
DOIs	https://doi.org/10.1016/j.optmat.2012.08.010
Publication status	Published - 2013

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title = "Luminescence and energy transfer in Lu3Al5O12 scintillators co-doped with Ce3+ and Pr3+",

abstract = "Lu3Al5O12:Ce3+ (LuAG:Ce) is a scintillator with a fast response time. The light yield is lower than theoretically expected and to increase the light yield co-doping with Pr3+ is investigated. To better understand the energy flow to the Ce3+ ion, first low temperature emission and excitation spectra of Pr3+ doped LuAG were investigated, allowing the accurate determination of the zero-phonon lines for the 5d states of Pr3+ in LuAG and the temperature dependent energy transfer from the Self Trapped Exciton to Pr3+. In addition VUV excitation and soft X-ray excited emission spectra of the co-doped LuAG:Ce,Pr were studied. The results show that energy transfer from Pr3+ to Ce3+ occurs but it is followed by back transfer to the 4f states of Pr3+.",

author = "J.M. Ogieg{\l}o and A.K. Zych and T. J{\"u}stel and A. Meijerink and R.C. Ronda",

year = "2013",

doi = "10.1016/j.optmat.2012.08.010",

language = "English",

volume = "35",

pages = "322--331",

journal = "Optical Materials",

issn = "0925-3467",

publisher = "Elsevier",

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TY - JOUR

T1 - Luminescence and energy transfer in Lu3Al5O12 scintillators co-doped with Ce3+ and Pr3+

AU - Ogiegło, J.M.

AU - Zych, A.K.

AU - Jüstel, T.

AU - Meijerink, A.

AU - Ronda, R.C.

PY - 2013

Y1 - 2013

N2 - Lu3Al5O12:Ce3+ (LuAG:Ce) is a scintillator with a fast response time. The light yield is lower than theoretically expected and to increase the light yield co-doping with Pr3+ is investigated. To better understand the energy flow to the Ce3+ ion, first low temperature emission and excitation spectra of Pr3+ doped LuAG were investigated, allowing the accurate determination of the zero-phonon lines for the 5d states of Pr3+ in LuAG and the temperature dependent energy transfer from the Self Trapped Exciton to Pr3+. In addition VUV excitation and soft X-ray excited emission spectra of the co-doped LuAG:Ce,Pr were studied. The results show that energy transfer from Pr3+ to Ce3+ occurs but it is followed by back transfer to the 4f states of Pr3+.

AB - Lu3Al5O12:Ce3+ (LuAG:Ce) is a scintillator with a fast response time. The light yield is lower than theoretically expected and to increase the light yield co-doping with Pr3+ is investigated. To better understand the energy flow to the Ce3+ ion, first low temperature emission and excitation spectra of Pr3+ doped LuAG were investigated, allowing the accurate determination of the zero-phonon lines for the 5d states of Pr3+ in LuAG and the temperature dependent energy transfer from the Self Trapped Exciton to Pr3+. In addition VUV excitation and soft X-ray excited emission spectra of the co-doped LuAG:Ce,Pr were studied. The results show that energy transfer from Pr3+ to Ce3+ occurs but it is followed by back transfer to the 4f states of Pr3+.

U2 - 10.1016/j.optmat.2012.08.010

DO - 10.1016/j.optmat.2012.08.010

M3 - Article

SN - 0925-3467

VL - 35

SP - 322

EP - 331

JO - Optical Materials

JF - Optical Materials

IS - 3

ER -

Luminescence and energy transfer in Lu3Al5O12 scintillators co-doped with Ce3+ and Pr3+

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