ELECTRONIC EXCITATIONS AND UV LUMINESCENCE IN SRO CRYSTALS AT 8 K

被引：8

作者：

FELDBACH, E ^{[1
]}

KINK, R ^{[1
]}

KIRM, M ^{[1
]}

LUSHCHIK, A ^{[1
]}

LUSHCHIK, C ^{[1
]}

LOHMUS, A ^{[1
]}

MAAROOS, A ^{[1
]}

MARTINSON, I ^{[1
]}

机构：

[1] LUND UNIV, DEPT PHYS, S-22362 LUND, SWEDEN

来源：

CHEMICAL PHYSICS LETTERS | 1995年 / 241卷 / 5-6期

关键词：

D O I：

10.1016/0009-2614(95)00672-Q

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Reflection and luminescence excitation spectra (5-30 eV) were measured for freshly cleaved SrO at 8 K. An emission band at 4.95 eV is dominant for a SrO crystal excited by photons in the region of fundamental absorption (5.6-30 eV). This emission is tentatively attributed to the radiative decay of self-trapped excitons. The emission at 5.03 eV is assigned to the excitons localized near barium impurity ions and is effectively excited by photons in the energy range 5.35-5.65 eV. The threshold energy of the secondary electron-hole pair creation by hot photoelectrons is estimated to be equal to E(th) = 13.5 +/- 0.3 eV for SrO at 8 K.

引用

页码：597 / 602

页数：6

共 24 条

[11] MULTIPLICATION OF ELECTRONIC EXCITATIONS IN CAO AND YALO3 CRYSTALS WITH FREE AND SELF-TRAPPED EXCITONS
LUSHCHIK, C
FELDBACH, E
FRORIP, A
KIRM, M
LUSHCHIK, A
MAAROOS, A
MARTINSON, I
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1994, 6 (50) : 11177 - 11187
[12] LUSHCHIK CB, 1995, FIZ TVERD TELA+, V37, P525
[13] LUSHCHIK CB, 1987, FIZ TVERD TELA, V29, P2097
[14] EXCITONS IN ALKALI HALIDES
ONODERA, Y
TOYOZAWA, Y
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1967, 22 (03) : 833 - &
[15] ABINITIO BAND-STRUCTURE CALCULATIONS FOR ALKALINE-EARTH OXIDES AND SULFIDES
PANDEY, R
JAFFE, JE
KUNZ, AB
[J]. PHYSICAL REVIEW B, 1991, 43 (11): : 9228 - 9237
[16] LOGARITHMIC DERIVATIVE REFLECTANCE SPECTRA OF BAO AND SRO
RAO, AS
KEARNEY, RJ
[J]. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1979, 95 (01): : 243 - 250
[17] SEEMAN V, 1980, TRUDY I FIZ AKAD NAU, V51, P199
[18] SONG KS, 1993, SPRINGER SER SOLID S, V105
[19] ELECTRONIC-STRUCTURE AND OPTICAL CHARACTERISTICS OF ALKALINE-EARTH OXIDES
STEPANYUK, VS
SZASZ, A
GRIGORENKO, AA
KATSNELSON, AA
FARBEROVICH, OV
MIKHALIN, VV
HENDRY, A
[J]. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 1992, 173 (02): : 633 - 645
[20] OPTICAL-ABSORPTION AND EMISSION NEAR THE BAND EDGE OF SRO
SUMMERS, GP
[J]. PHYSICAL REVIEW B, 1979, 20 (12) : 5275 - 5279

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