Influence of a v       c    −    Vacancy on Luminescence of Pb +  Centres in Alkali Halides | Zendy

Nagli L. E. | Zendy; Dyachenko S. V. | Zendy

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Influence of a v c − Vacancy on Luminescence of Pb + Centres in Alkali Halides

Author(s) -

Nagli L. E.,

Dyachenko S. V.

Publication year - 1988

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221460131

Subject(s) - halide , alkali metal , luminescence , excited state , analytical chemistry (journal) , chemistry , irradiation , excitation , doping , vacancy defect , spectral line , materials science , inorganic chemistry , atomic physics , crystallography , physics , optoelectronics , organic chemistry , chromatography , quantum mechanics , nuclear physics , astronomy

Luminescence of Pb + centres in X‐irradiated Pb 2+ doped KCl, KBr, and KI crystals is first observed at 1.29, 1.21, and 1.14 eV, respectively. It is excited in the bands of KCl:Pb 2+ at 4.93, 4.45, 3.70, 2.03 eV, of KBr:Pb 2+ at 5.20, 4.55, 4.20, 3.20, and at 5.10, 4.30, 3.91, 3.52, 3.02, eV for KI:Pb 2+ . The effect is studied of the presence of the cation vacancy on both, the excitation and emission spectra of the Pb + centre. Temperature, kinetic, and polarization characteristics of Pb + and Pb + v c − ‐centres in KCl:Pb 2+ are investigated.

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