RES structure of Bi3+centres in KCl: Bi, S and CaO : Bi crystals

R. Aceves; M. Barboza Flores; A. Maaroos; V. Nagirnyi; R. Perez Salas; T. Tsuboi; S. Zazubovich; V. Zepelin

doi:10.1002/pssb.2221940217

RES structure of Bi³⁺centres in KCl: Bi, S and CaO : Bi crystals

R. Aceves, M. Barboza Flores, A. Maaroos, V. Nagirnyi, R. Perez Salas, T. Tsuboi, S. Zazubovich, V. Zepelin

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Abstract

Emission, excitation, and polarization spectra as well as decay kinetics are studied at 4.2 to 500 K for the luminescence of Bi3+centres in two crystals (KCl and CaO) with strongly different electron-phonon interaction. It is concluded that three bands at ≈2.5, 3.11, and ≈1.5eV, observed in the emission spectrum of the KCl:Bi, S crystal belong to the same centre, but arise from states of different origin. The splitting of the 2.5 eV band, caused by the presence of a defect (S2-) near a Bi3+ion is detected. Besides the well-known triplet 3.3 and 3.1 eV bands, a new 4.15 eV emission is found in CaO: Bi crystal, which is ascribed to transitions from the singlet excited state of the Bi3+ion. The structure and the parameters of the relaxed excited states are determined and the models of the corresponding Br3+centres are discussed.

Original language	American English
Pages (from-to)	619-631
Number of pages	13
Journal	Physica Status Solidi (B) Basic Research
DOIs	https://doi.org/10.1002/pssb.2221940217
State	Published - 1 Jan 1996

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@article{9125aa34997444fd945286369d088afd,

title = "RES structure of Bi3+centres in KCl: Bi, S and CaO : Bi crystals",

abstract = "Emission, excitation, and polarization spectra as well as decay kinetics are studied at 4.2 to 500 K for the luminescence of Bi3+centres in two crystals (KCl and CaO) with strongly different electron-phonon interaction. It is concluded that three bands at ≈2.5, 3.11, and ≈1.5eV, observed in the emission spectrum of the KCl:Bi, S crystal belong to the same centre, but arise from states of different origin. The splitting of the 2.5 eV band, caused by the presence of a defect (S2-) near a Bi3+ion is detected. Besides the well-known triplet 3.3 and 3.1 eV bands, a new 4.15 eV emission is found in CaO: Bi crystal, which is ascribed to transitions from the singlet excited state of the Bi3+ion. The structure and the parameters of the relaxed excited states are determined and the models of the corresponding Br3+centres are discussed.",

author = "R. Aceves and {Barboza Flores}, M. and A. Maaroos and V. Nagirnyi and {Perez Salas}, R. and T. Tsuboi and S. Zazubovich and V. Zepelin",

year = "1996",

month = jan,

day = "1",

doi = "10.1002/pssb.2221940217",

language = "American English",

pages = "619--631",

journal = "Physica Status Solidi (B) Basic Research",

issn = "0370-1972",

publisher = "Wiley-VCH Verlag",

}

TY - JOUR

T1 - RES structure of Bi3+centres in KCl: Bi, S and CaO : Bi crystals

AU - Aceves, R.

AU - Barboza Flores, M.

AU - Maaroos, A.

AU - Nagirnyi, V.

AU - Perez Salas, R.

AU - Tsuboi, T.

AU - Zazubovich, S.

AU - Zepelin, V.

PY - 1996/1/1

Y1 - 1996/1/1

N2 - Emission, excitation, and polarization spectra as well as decay kinetics are studied at 4.2 to 500 K for the luminescence of Bi3+centres in two crystals (KCl and CaO) with strongly different electron-phonon interaction. It is concluded that three bands at ≈2.5, 3.11, and ≈1.5eV, observed in the emission spectrum of the KCl:Bi, S crystal belong to the same centre, but arise from states of different origin. The splitting of the 2.5 eV band, caused by the presence of a defect (S2-) near a Bi3+ion is detected. Besides the well-known triplet 3.3 and 3.1 eV bands, a new 4.15 eV emission is found in CaO: Bi crystal, which is ascribed to transitions from the singlet excited state of the Bi3+ion. The structure and the parameters of the relaxed excited states are determined and the models of the corresponding Br3+centres are discussed.

AB - Emission, excitation, and polarization spectra as well as decay kinetics are studied at 4.2 to 500 K for the luminescence of Bi3+centres in two crystals (KCl and CaO) with strongly different electron-phonon interaction. It is concluded that three bands at ≈2.5, 3.11, and ≈1.5eV, observed in the emission spectrum of the KCl:Bi, S crystal belong to the same centre, but arise from states of different origin. The splitting of the 2.5 eV band, caused by the presence of a defect (S2-) near a Bi3+ion is detected. Besides the well-known triplet 3.3 and 3.1 eV bands, a new 4.15 eV emission is found in CaO: Bi crystal, which is ascribed to transitions from the singlet excited state of the Bi3+ion. The structure and the parameters of the relaxed excited states are determined and the models of the corresponding Br3+centres are discussed.

U2 - 10.1002/pssb.2221940217

DO - 10.1002/pssb.2221940217

M3 - Article

SN - 0370-1972

SP - 619

EP - 631

JO - Physica Status Solidi (B) Basic Research

JF - Physica Status Solidi (B) Basic Research

ER -

RES structure of Bi3+centres in KCl: Bi, S and CaO : Bi crystals

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RES structure of Bi³⁺centres in KCl: Bi, S and CaO : Bi crystals