Journal ArticleDOI
Luminescence Decay Times of the Sb3+, Pb2+, and Bi3+ Ions in Alkaline‐Earth Sulfides
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TLDR
In this article, the luminescence decay times of Tl+-type ions in MgS, CaS, SrS, and BaS are measured as a function of temperature from 4.2 to 150 K.Abstract:
The luminescence decay times of Tl+-type ions in MgS, CaS, SrS, and BaS are measured as a function of temperature from 4.2 to 150 K. By applying a three-level model, the energy difference ΔE between the lower excited states 3T1u(3P1) and 3A1u(3P0) and the transition probabilities from the two excited states to the ground state 3A1g(1S0) are derived. The values of the parameters are compared with each other and with those for alkaline-earth oxides.
Die Lumineszenzabklingzeiten von Tl+-Typ Ionen in MgS, CaS, SrS und BaS werden im Temperaturbereich von 4.2 bis 150 K untersucht. Durch Anwendung eines Dreiniveauschemas werden die Energiedifferenz ΔE zwischen den niedrigen angeregten Zustanden 3T1u(3P1) und 3A1u(3P0) und die Ubergangswahrscheinlichkeiten von diesen angeregten Zustanden zum Grundzustand 1A1g(1S0) erhalten. Die Parameterwerte werden miteinander und mit denen der Erdalkalioxide verglichen.read more
Citations
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Journal ArticleDOI
Spectroscopy and Origin of Radiation Centers and Scintillation in PbWO4 Single Crystals
Mikhail Korzhik,V. B. Pavlenko,T. N. Timoschenko,V. Katchanov,A. V. Singovskii,A. N. Annenkov,V.A. Ligun,I. M. Solskii,J.P. Peigneux +8 more
TL;DR: In this paper, the results of studies on the spectroscopic properties and the origin of luminescent radiation centers in PbWO4 single crystals are presented, and the energy level scheme for radiation centers is proposed.
Journal ArticleDOI
Investigation and application of quantitative relationship between sp energy levels of Bi3+ ion and host lattice
TL;DR: In this paper, the 1S0-3P1 (A band) and 1S 0-1P 1 (C band) transition energy of Bi3+ ion in dozens of different compounds has been gathered and analyzed.
Journal ArticleDOI
INVITED) Ultraviolet and visible luminescence from bismuth doped materials
H.C. Swart,R.E. Kroon +1 more
TL;DR: In this article, the authors surveyed models that have been developed to understand the optical properties of bismuth-based materials and compiled a few case studies on the luminescence of trivalent Bi 3+ and simple oxide hosts.
Journal ArticleDOI
Dual-Band-Tunable White-Light Emission from Bi3+/Te4+ Emitters in Perovskite-Derivative Cs2SnCl6 Microcrystals.
Wei Zhang,Wei Zheng,Lingyun Li,Ping Huang,Zhong-Liang Gong,Ziwei Zhou,Jinyue Sun,Yan Yu,Xueyuan Chen +8 more
TL;DR: These findings provide not only new insights into the excited-state dynamics of Bi3+ and Te4+ in Cs2SnCl6, but also a general approach to achieve single-composition white-light emitters based on lead-free metal halides through ns2-metal ion co-doping.
Journal ArticleDOI
Peculiarities of excited state structure and photoluminescence in Bi3+-doped Lu3Al5O12 single-crystalline films
TL;DR: Single-crystalline films of Lu(3)Al(5)O(12):Bi, prepared by the liquid phase epitaxy method from the melt-solution based on Bi(2)O (3) flux, have been studied at 4.2-400 K by time-resolved luminescence spectroscopy methods.
References
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Journal ArticleDOI
Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides
TL;DR: The effective ionic radii of Shannon & Prewitt [Acta Cryst. (1969), B25, 925-945] are revised to include more unusual oxidation states and coordinations as mentioned in this paper.
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The optical properties of thallium-like impurities in alkali-halide crystals
TL;DR: In this paper, experimental and theoretical investigations of optical absorption and emission spectra of alkali-halides doped with Tl+-like impurities are reviewed and an extensive interpretation of the complex phenomena is presented and critically assessed.
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Luminescence Centers of Ca(S : Se) Phosphors Activated with Impurity Ions Having s 2 Configuration. I. Ca(S : Se) : Sb 3+ Phosphors
TL;DR: In this paper, the emission, excitation and reflection spectra at 300, 80 and 15 K were obtained, and the parameters, F 0, G, ζ and R th, were calculated with the aid of the theories known in alkali halides.
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Processus de photoluminescence dans les oxydes et les orthovanadates de terres rares polycristallins activés par l'ion Bi3+
TL;DR: In this paper, les proprietes de fluorescence de l'ion Bi3+ incorpore dans les oxydes et orthovanadates de terres rares LnVO4 (Ln = Sc, Y, Gd), La2O 3 and Ln2O3.
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Luminescence of the Pb2+-Ion Dimer Center in CaS and CaSe Phosphors
S. Asano,N. Yamashita,Y. Nakao +2 more
TL;DR: In this paper, the authors measured the reflection, emission, and excitation spectra of CaS:Pb2+ and CaSe:P2+ at 300, 80, and 6K.