Thermoluminescence kinetics of Li6GdB3O9 crystals

Огородников, И. Н.; Vostrov, D.O.; Пустоваров, В. А.; Седунова, И. Н.

doi:10.1016/j.optmat.2014.04.033

Cited by 8 publications

(8 citation statements)

References 40 publications

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“…were carried out in [20]. Positions of the ground 4f and 5d levels of impurity ions with respect to the levels * The article is published in the original.…”

Section: +mentioning

confidence: 99%

“…of the BLO host crystal were determined on the basis of these experimental data [20]. Despite intensive research, many issues relating to spectroscopy of rare-earth ions in the BLO host lattice are not well understood.…”

Section: +mentioning

confidence: 99%

“…Firstly, the energy locations for 4f and 5d ground stats for all divalent and trivalent lanthanide ions in the lanthanum beryllate host lattice have been calculated in our previous work [20]. The calculation [20] was carried out in the framework of semi-empirical model proposed by P. Dorenbos. Our own experimental data on spectroscopy of BLO:Ce and BLO:Eu were used there as reference.…”

Section: Energy Level Diagrammentioning

confidence: 99%

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Ultraviolet-visible spectroscopic characterization of lanthanum beryllate crystals doped with Er, Nd, or Pr ions

Пустоваров

Огородников

2016

J. Synch. Investig.

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Abstract-Spectroscopic characterization of lanthanum beryllate La2Be2O5 (BLO) single crystals doped with trivalent ions of Er, Nd or Pr, was carried out in the ultraviolet-visible spectral range using synchrotron radiation spectroscopy in combination with conventional optical absorption and luminescence spectroscopy techniques. On the basis of the obtained data, the energy level diagram for these trivalent impurity ions in BLO host lattice was developed; the optical and electronic properties of the crystals were determined; the possibility of the 4f -4f , 4f -5d and charge transfer transitions was analyzed; spectroscopic properties of the lattice defects formed during the introduction of trivalent impurity ions in the BLO host lattice, were investigated. We found that the lattice defects are responsible for a wide-band photoluminescence (PL) in the energy region of 400-600 nm. The most efficient excitation of the defect photoluminescence in the energy gap of BLO occurs in broad PL excitation-bands at 270 and 240 nm. The PL intensity of defects depends on the type of impurity ion and increases in the sequence: Pr-Nd-Er.

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“…were carried out in [20]. Positions of the ground 4f and 5d levels of impurity ions with respect to the levels * The article is published in the original.…”

Section: +mentioning

confidence: 99%

Section: +mentioning

confidence: 99%

Section: Energy Level Diagrammentioning

confidence: 99%

See 1 more Smart Citation

Ultraviolet-visible spectroscopic characterization of lanthanum beryllate crystals doped with Er, Nd, or Pr ions

Пустоваров

Огородников

2016

J. Synch. Investig.

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show abstract

“…Furthermore, the sample may contain other types of trapped hole centers. Majority of such trapping centers are shallow and they correspond to thermoluminescence (TL) glow peaks in the temperature region of 100-130 K, but there are centers that demonstrate TL peaks at 250-300 K [34]. Fig.…”

Section: Model For Recombination Processesmentioning

confidence: 99%

“…Thermally stimulated luminescence from LGBO crystals doped with Ce 3 þ and Eu 3 þ impurity ions have been studied in Refs. [31][32][33][34]. It was found that in the UV region, this luminescence can be excited by photons with an energy corresponding to the lowest-energy excited states of Gd 3 þ matrix ions and Ce 3 þ and Eu 3 þ impurity ions.…”

Section: Introductionmentioning

confidence: 99%