Инд. авторы:	Isaenko L.I., Ogorodnikov I.N., Pustovarov V.A., Tarasova A.Y., Pashkov V.M.
Заглавие:	Optical and photoelectron spectroscopy studies of KPb2Cl 5 and RbPb2Cl5 laser crystals
Библ. ссылка:	Isaenko L.I., Ogorodnikov I.N., Pustovarov V.A., Tarasova A.Y., Pashkov V.M. Optical and photoelectron spectroscopy studies of KPb2Cl 5 and RbPb2Cl5 laser crystals // Optical Materials. - 2013. - Vol.35. - Iss. 3. - P.620-625. - ISSN 0925-3467. - EISSN 1873-1252.
Внешние системы:	DOI: 10.1016/j.optmat.2012.10.042; SCOPUS: 2-s2.0-84871713656;
Реферат:	eng: The paper presents the results of experimental study of electronic structure of RbPb2Cl5 and KPb2Cl5 laser crystals performed by the optical and photoelectron spectroscopy methods. On the basis of the optical absorption and low-temperature reflection spectra of these crystals we have determined the energy positions of the edges of the low-energy tail of the host absorption, the positions of the first excitonic absorption peaks, and exciton binding energies. The bandgap widths of these crystals at 8 K were estimated as Eg = 4.83 and 4.79 eV, respectively. Qualitative and quantitative analysis of RbPb2Cl 5 and KPb2Cl5 crystals were made on the basis of the core states photoelectron spectra. The elemental composition of the (0 0 1) surfaces of the crystals, the chemical state of the host atoms, the electronic structure of the valence band of the crystals were discussed on the basis on the spectroscopic data. © 2012 Elsevier B.V. All rights reserved.
Ключевые слова:	Spectroscopic data; Reflection spectra; Qualitative and quantitative analysis; Photoelectron spectrum; Optical spectra; Low temperatures; Laser crystals; Energy position; Exciton-binding energy; Excitonic absorption; Experimental studies; Host absorptions; Host atoms; Chlorine; Spectroscopic analysis; Photoelectrons; Photoelectron spectroscopy; Lasers; Electronic structure; Binding energy; Alkali halides; Elemental compositions; Double alkali-lead halides; Chemical state; Band gap width; Photoelectron spectra; Optical spectra; Electronic structure; Double alkali-lead halides;
Издано:	2013
Физ. характеристика:	с.620-625