Radiative and Nonradiative Transitions in La<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Cl</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>: Pr and Pr<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Cl</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>

German, K. R.; Kiel, A.

doi:10.1103/physrevb.8.1846

Cited by 30 publications

(9 citation statements)

References 18 publications

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“…This phenomenon is often called concentration quenching. This quenching is indicated by the decrease of the decay time of Pr 3+ 4f 2 → 4f 2 emission when the Pr 3+ concentration increases, as reported previously by German and Kiel in LaCl 3 :Pr 3+ and LaBr 3 :Pr 3+ [11]. We did not observe a shortening of the decay time of the 5d state of Ce 3+ in PrCl 3 when the temperature increases from 10 K to RT; see curves (a) in figure 5.…”

Section: A Model For the Thermal Luminescence Quenchingsupporting

confidence: 87%

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Thermal quenching of Ce³⁺emission in PrX₃(X = Cl, Br) by intervalence charge transfer

Birowosuto

Dorenbos

Eijk

et al. 2007

J. Phys.: Condens. Matter

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The cause of the relatively low scintillation light yield of PrBr 3 :Ce 3+ is investigated by means of optical spectroscopy, the temperature dependence of scintillation properties and the temperature dependence of optically excited decay curves of undoped and Ce 3+ -doped PrCl 3 and PrBr 3 . The integrated intensity of x-ray excited luminescence of PrBr 3 :5% Ce 3+ shows that the light yield at room temperature (RT) is two times less than at 80 K. The decay time of Ce 3+ emission optically excited to its 5d band in PrBr 3 :5% Ce 3+ has a single exponential decay of 11.0 ± 1.1 and 6.0 ± 0.6 ns at 10 K and RT, respectively. It is proposed that Ce 3+ emission is quenched by a metal-to-metal charge transfer of Ce 3+ + Pr 3+ → Ce 4+ + Pr 2+ followed by 4f → 4f emission of Pr 3+ which is strongly concentration quenched.

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Section: A Model For the Thermal Luminescence Quenchingsupporting

confidence: 87%

“…Undoped PrCl 3 and PrBr 3 were previously studied for surface laser applications [9]. Studies of radiative and nonradiative transitions of Pr 3+ in undoped PrCl 3 and PrBr 3 can be found in the works of German et al [10,11].…”

Section: Introductionmentioning

confidence: 99%

Thermal quenching of Ce³⁺emission in PrX₃(X = Cl, Br) by intervalence charge transfer

Birowosuto

Dorenbos

Eijk

et al. 2007

J. Phys.: Condens. Matter

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“…3. A similar observation was done for CsCdBr 3 : Pr 3þ [12,10]. The excitation spectrum of LaBr 3 :0.5%Ce 3þ at 10 K monitoring Ce 3þ emission at 356 nm is shown in Fig.…”

Section: Article In Presssupporting

confidence: 51%

“…With increase of temperature the ratio changes and at 200 K both emissions are of comparable magnitude. This has been observed before on LaCl 3 : Pr 3þ and LaBr 3 : Pr 3þ and explained by German and Kiel [10,11]. The small value for the maximum phonon frequency in these compounds prevents at 10 K a fast multi-phonon relaxation from the 3 P 1 state to the 3 P 0 state leading to intense emission lines from the 3 P 1 state.…”

Section: Article In Pressmentioning

confidence: 68%

Level location and spectroscopy of , , , and in

Dorenbos

Loef

Vink

et al. 2006

Journal of Luminescence

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“…The Pr 4f 4f transition lines originate from the P state. The absence of transitions from the P state has been attributed to energy exchange with neighboring Pr ions [10]. Fig.…”

Section: Resultsmentioning

confidence: 97%

PrBr$_3$: Ce$^3+$: A New Fast Lanthanide Trihalide Scintillator

Birowosuto

Dorenbos

Eijk

et al. 2006

IEEE Trans. Nucl. Sci.

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We present PrBr 3 : Ce 3+ as a new member of the lanthanide trihalide scintillator family. This compound has the same crystal structure as its cousin LaBr 3 : Ce 3+ . The calculated density (5.33 g/cm 3 ) and the effective atomic number e (48.27) are higher than those of LaBr 3 : Ce 3+ ( = 5 07 g/cm 3 and e = 46 90). This results in a shorter total attenuation length of 2.09 cm for 511 keV -ray excitation. Lower light yield than that of LaBr 3 : Ce 3+ is observed for prBr 3 :5%Ce 3+ (16 000 photons/MeV) and 20% Ce 3+ (21 000 photons/MeV) versus 70 000 photons/MeV in LaBr 3 : Ce 3+ . Scintillation decay curves of those crystals are non exponential and their decay times are faster than 10 ns. The scintillation properties of undoped PrBr 3 are also presented.

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Radiative and Nonradiative Transitions in LaCl3: Pr and PrCl3

Cited by 30 publications

References 18 publications

Thermal quenching of Ce³⁺emission in PrX₃(X = Cl, Br) by intervalence charge transfer

Thermal quenching of Ce³⁺emission in PrX₃(X = Cl, Br) by intervalence charge transfer

Level location and spectroscopy of , , , and in

PrBr$_3$: Ce$^3+$: A New Fast Lanthanide Trihalide Scintillator

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Radiative and Nonradiative Transitions in LaCl3: Pr and PrCl3

Cited by 30 publications

References 18 publications

Thermal quenching of Ce3+emission in PrX3(X = Cl, Br) by intervalence charge transfer

Thermal quenching of Ce3+emission in PrX3(X = Cl, Br) by intervalence charge transfer

Level location and spectroscopy of , , , and in

PrBr$_3$: Ce$^3+$: A New Fast Lanthanide Trihalide Scintillator

Contact Info

Product

Resources

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Thermal quenching of Ce³⁺emission in PrX₃(X = Cl, Br) by intervalence charge transfer

Thermal quenching of Ce³⁺emission in PrX₃(X = Cl, Br) by intervalence charge transfer