Luminescence characterization of ultrathin MgO films of high crystallinity prepared by pulsed laser deposition

被引：20

作者：

Feldbach, Eduard ^{[1
]}

Jaaniso, Raivo ^{[1
]}

Kodu, Margus ^{[1
]}

Denks, Viktor P. ^{[1
]}

Kasikov, Aarne ^{[1
]}

Liblik, Peeter ^{[1
]}

Maaroos, Aarne ^{[1
]}

Maendar, Hugo ^{[1
]}

Kirm, Marco ^{[1
]}

机构：

[1] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2009年 / 20卷

关键词：

OPTICAL-SURFACE PROPERTIES; MAGNESIUM-OXIDE; SYNCHROTRON RADIATION; SINGLE-CRYSTALS; F+-CENTERS; EXCITATION; EXCITONS; NANOCRYSTALS; DEPENDENCE; CREATION;

D O I：

10.1007/s10854-008-9599-z

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Thin MgO films with thicknesses ranging from 127 to 35 nm were prepared by pulsed laser deposition on Si substrates. The crystalline films were smooth (rms roughness 0.6-1.2 nm) with an average density of 3.5 g/cm(3). Cathodoluminescence study revealed emissions peaked at 7.65 eV and ascribed to the edge emission of large radius exciton states as well as luminescence due to the F and F(+) colour centres in the range of 2-4 eV. This luminescence is efficiently excited in the absorption band peaked at 6.2 eV and in the intrinsic absorption with the onset at 7.4 eV via energy transfer processes.

引用

页码：321 / 325

页数：5

共 21 条

[1] CHARGE-TRANSFER LUMINESCENCE OF CR3+ IN MAGNESIUM OXIDE
CHAO, CC
[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1971, 32 (11) : 2517 - &
[2] Oxygen-pressure dependence of the crystallinity of MgO films grown on Si(100) by PLD
Chen, TL
Xiao, ML
Zhang, S
Hua, RZ
[J]. JOURNAL OF CRYSTAL GROWTH, 2004, 270 (3-4) : 553 - 559
[3] RECOMBINATION LUMINESCENCE AND ENERGY-TRANSFER IN IONIC-CRYSTALS AT XUV EXCITATION BY SYNCHROTRON RADIATION
ELANGO, M
PRUULMANN, J
ZHURAKOVSKII, AP
[J]. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 1983, 115 (02): : 399 - 407
[4] EXCITONS AND EDGE LUMINESCENCE IN MGO
FELDBACH, E
KUUSMANN, I
ZIMMERER, G
[J]. JOURNAL OF LUMINESCENCE, 1981, 24-5 (NOV) : 433 - 436
[5] EXCITONS IN BEO
FELDBACH, E
LAASCH, W
VARDING, D
ZIMMERER, G
[J]. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1992, 170 (02): : 623 - 630
[6] FELDBAKH EK, 1984, JETP LETT+, V39, P61
[7] Nanocrystalline Cr2O3-TiO2 thin films by pulsed laser deposition
Jantson, T
Avarmaa, T
Mändar, H
Uustare, T
Jaaniso, R
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2005, 109 (01): : 24 - 31
[8] KALDER KA, 1976, IZV AN SSSR FIZ+, V40, P2313
[9] F+ AND F' CENTERS IN MAGNESIUM OXIDE
KAPPERS, LA
KROES, RL
HENSLEY, EB
[J]. PHYSICAL REVIEW B, 1970, 1 (10): : 4151 - &
[10] Creation of groups of spatially correlated excitations in wide-gap solids
Kirm, M
Lushchik, A
Lushchik, C
[J]. PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2005, 202 (02): : 213 - 220

← 1 2 3 →