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100 _a20191122a2019 k y0engy50 ba
101 0 _aeng
102 _aUA
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aIntracenter processes induced by electron beam and 337 nm laser light in CsI:Tl
_fV. Yu. Yakovlev [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 24 tit.]
330 _aInvestigated are the spectral-kinetic properties of the activator luminescence excited in CsI:Tl crystal by a pulsed electron beam and by a pulsed nitrogen laser at λ = 337.1 nm, that corresponds to the long-wave decline of the A-absorption band. It is found that the decay kinetics of 2.6 and 2.25 eV luminescence bands excited by an electron beam at 80 K is mono-exponential with the time constants τ = 4 μs and τ = 13 μs, respectively. The decay kinetics of each from the luminescence bands under the laser excitation is bi-exponential due to the presence of one more component with time constant τ = 900 ns. This sub-microsecond component dominates in the bi-exponential kinetics, and the value of its time constant is determined by the time of the electron transfer from the metastable ψ sub-level of the excited 62P3/2 state to the ground 62P1/2 state of Tl0 center. Phonon-assisted processes causing population of the radiative states of Tl+ centers responsible for 3.0, 2.25 and 2.6 eV luminescence bands are discussed in detail.
461 _tFunctional Materials
463 _tVol. 26, № 3
_v[P. 454-461]
_d2019
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _athallium doped cesium iodide
610 1 _aluminescence
610 1 _aTl<sup>+</sup>-perturbed exciton
610 1 _adecay kinetics
610 1 _acharge transfer
610 1 _aлегированные соединения
610 1 _aлюминесценция
701 1 _aYakovlev
_bV. Yu.
_cspecialist in the field of lightning engineering
_cProfessor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences
_f1949-
_gViktor Yurjevich
_2stltpush
_3(RuTPU)RU\TPU\pers\35728
701 1 _aTrefilova
_bL. N.
_gLarisa Nikolaevna
701 1 _aAlekseev
_bV. A.
_gVadim Aleksandrovich
701 1 _aKarnaukhova
_bA. A.
_cspecialist in the field of lightning engineering
_cAssistant, Associate Professor of Tomsk Polytechnic University
_f1983-
_gAnna Alekseevna
_2stltpush
_3(RuTPU)RU\TPU\pers\37830
701 1 _aShpilinskaya
_bO. V.
_gOlga Viktorovna
701 1 _aLebedinsky
_bA. M.
_gAleksey Mikhaylovich
701 1 _aTarakhno
_bO.
_gAleksey Mikhaylovich
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа новых производственных технологий
_bОтделение материаловедения
_h7871
_2stltpush
_3(RuTPU)RU\TPU\col\23508
801 2 _aRU
_b63413507
_c20191122
_gRCR
856 4 _uhttps://doi.org/10.15407/fm26.03.454
942 _cCF