Инд. авторы:	Ogorodnikov I.N., Pustovarov V.A., Yakovlev S.A., Isaenko L.I., Zhurkov S.A.
Заглавие:	Luminescence and electronic excitations in KBe 2BO 3F 2 crystals
Библ. ссылка:	Ogorodnikov I.N., Pustovarov V.A., Yakovlev S.A., Isaenko L.I., Zhurkov S.A. Luminescence and electronic excitations in KBe 2BO 3F 2 crystals // Physics of The Solid State. - 2012. - Vol.54. - Iss. 4. - P.735-740. - ISSN 1063-7834. - EISSN 1090-6460.
Внешние системы:	DOI: 10.1134/S106378341204018X; SCOPUS: 2-s2.0-84859873399;
Реферат:	eng: This paper reports on a study of the dynamics of electronic excitations in KBe 2BO 3F 2 (KBBF) crystals by low-temperature luminescent vacuum ultraviolet spectroscopy with nanosecond time resolution under photoexcitation by synchrotron radiation. The first data have been obtained on the kinetics of photoluminescence (PL) decay, time-resolved PL spectra, time-resolved PL excitation spectra, and reflection spectra at 7 K; the estimation has been performed for the band gap E g = 10. 6-11. 0 eV; the predominantly excitonic mechanism for PL excitation at 3. 88 eV has been identified; and defect luminescence bands at 3. 03 and 4. 30 eV have been revealed. The channels of generation and decay of electronic excitations in KBBF crystals have been discussed. © 2012 Pleiades Publishing, Ltd.
Издано:	2012
Физ. характеристика:	с.735-740