Optical studies of Pb2+ ions in a LiBaF3 crystal

被引：16

作者：

Aminov, L. K. ^{[1
]}

Nikitin, S. I. ^{[1
]}

Silkin, N. I. ^{[1
]}

Shakhov, A. A. ^{[1
]}

Yusupov, R. V. ^{[1
]}

Abdulsabirov, R. Yu ^{[1
]}

Korableva, S. L. ^{[1
]}

机构：

[1] Kazan VI Lenin State Univ, Kazan 420008, Russia

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2006年 / 18卷 / 20期

关键词：

D O I：

10.1088/0953-8984/18/20/021

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The absorption and luminescence spectra of a LiBaF3:Pb2+ crystal are studied in the temperature range 10-300 K. At 300 K a structureless absorption band (A band) is found in the energy range 1.4-6.6 eV. The luminescence spectra at 300 and 10 K are composed of two A' and A(1) bands with maxima at similar to 5.0 and similar to 4.0 eV, respectively. The A' band originates from the 'regular' Pb2+ centres. The A' band luminescence decay is single-exponential in the whole temperature range 10-300 K. The properties of the observed absorption and A' luminescence bands are described well within the semiclassical theory based on the Franck Condon principle and the Jahn-Teller effect in the excited sp configuration. The possible nature of the A(1) band luminescence is discussed.

引用

收藏

页码：4985 / 4993

页数：9

相关论文

共 26 条

[1] Coexistence of the impurity and perturbed exciton levels in the relaxed excited state of CsCl:Pb crystal [J].

Aceves, R ;

Babin, V ;

Flores, MB ;

Fabeni, P ;

Mihokova, E ;

Nagirnyi, V ;

Nikl, M ;

Nitsch, K ;

Pazzi, GP ;

Salas, RP ;

Zazubovich, S .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1998, 10 (24) :5449-5461

[2] Photoluminescence of KZnF3:Tl+ and KMgF3:Tl+ crystals [J].

Aminov, LK ;

Nikitin, SI ;

Silkin, NI ;

Shakhov, AA ;

Yusupov, RV .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (50) :13835-13856

[3] Optical absorption of KZnF3:Tl+ and KMgF3:Tl+ crystals [J].

Aminov, LK ;

Kosach, AV ;

Nikitin, SI ;

Silkin, NI ;

Yusupov, RV .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (28) :6247-6258

[4] The role of Pb2+ as a sensitizer for Gd3+-EU3+ downconversion couple in fluorides [J].

Babin, V ;

Oskam, KD ;

Vergeer, P ;

Meijerink, A .

RADIATION MEASUREMENTS, 2004, 38 (4-6) :767-770

[5] CRYSTAL-GROWTH OF PURE AND LEAD DOPED BARIUM-LITHIUM FLUORIDE [J].

BALDOCHI, SL ;

GESLAND, JY .

MATERIALS RESEARCH BULLETIN, 1992, 27 (07) :891-900

[6] Growth and characterization of BaLiF3 single crystal as a new optical material in the VUV region [J].

Bensalah, A ;

Shimamura, K ;

Fujita, T ;

Sato, H ;

Nikl, M ;

Fukuda, T .

JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 348 (1-2) :258-262

[7] A thermal-neutron scintillator with n/γ discrimination LiBaF3:Ce,Rb [J].

Combes, CM ;

Dorenbos, P ;

Hollander, RW ;

van Eijk, CWE .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1998, 416 (2-3) :364-370

[8] ALKALI-HALIDE CRYSTALS CONTAINING IMPURITY IONS WITH THE NS2 GROUND-STATE ELECTRONIC CONFIGURATION [J].

JACOBS, PWM .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1991, 52 (01) :35-67

[9] LiBaF3, a thermal neutron scintillator with optimal n-gamma [J].

Knitel, MJ ;

Dorenbos, P ;

deHaas, JTM ;

vanEijk, CWE .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 374 (02) :197-201

[10] Relaxed excited state structure and luminescence of thallium-doped caesium chloride and bromide [J].

Mihokova, E ;

Nagirnyi, V ;

Nikl, M ;

Stolovich, A ;

Pazzi, GP ;

Zazubovich, S ;

Zepelin, V .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1996, 8 (23) :4301-4314