LUMINESCENCE PROPERTIES OF NANOMETER-SIZED SI CRYSTALLITES - CORE AND SURFACE-STATES

被引：191

作者：

KANEMITSU, Y

机构：

[1] Institute of Physics, University of Tsukuba, Tsukuba

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.49.16845

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied the mechanism of visible photoluminescence (PL) from surface-oxidized Si crystallites of 3.7 nm diameter. Under intense laser-pulse illumination, two PL bands are clearly observed: a fast-decay blue-green PL band and a slow-decay red PL band. Time-resolved PL-spectrum measurements indicate that carriers generated in the core state are rapidly localized into the lower-energy surface states. Spectroscopic analysis indicates that the slow-decay red PL is caused by the hopping-limited recombination process in the surface-localized state of the crystallite, while the blue-green PL is caused by the band-edge emission from the core state of the crystallite.

引用

页码：16845 / 16848

页数：4

共 24 条

[1] ELECTRONIC-STRUCTURE AND PHOTOEXCITED-CARRIER DYNAMICS IN NANOMETER-SIZE CDSE CLUSTERS
BAWENDI, MG
WILSON, WL
ROTHBERG, L
CARROLL, PJ
JEDJU, TM
STEIGERWALD, ML
BRUS, LE
[J]. PHYSICAL REVIEW LETTERS, 1990, 65 (13) : 1623 - 1626
[2] LUMINESCENCE PROPERTIES OF CDSE QUANTUM CRYSTALLITES - RESONANCE BETWEEN INTERIOR AND SURFACE LOCALIZED STATES
BAWENDI, MG
CARROLL, PJ
WILSON, WL
BRUS, LE
[J]. JOURNAL OF CHEMICAL PHYSICS, 1992, 96 (02) : 946 - 954
[3] VOLTAGE-CONTROLLED SPECTRAL SHIFT OF POROUS SILICON ELECTROLUMINESCENCE
BSIESY, A
MULLER, F
LIGEON, M
GASPARD, F
HERINO, R
ROMESTAIN, R
VIAL, JC
[J]. PHYSICAL REVIEW LETTERS, 1993, 71 (04) : 637 - 640
[4] IDENTIFICATION OF RADIATIVE TRANSITIONS IN HIGHLY POROUS SILICON
CALCOTT, PDJ
NASH, KJ
CANHAM, LT
KANE, MJ
BRUMHEAD, D
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1993, 5 (07) : L91 - L98
[5] SILICON QUANTUM WIRE ARRAY FABRICATION BY ELECTROCHEMICAL AND CHEMICAL DISSOLUTION OF WAFERS
CANHAM, LT
[J]. APPLIED PHYSICS LETTERS, 1990, 57 (10) : 1046 - 1048
[6] PHOTOINDUCED HYDROGEN LOSS FROM POROUS SILICON
COLLINS, RT
TISCHLER, MA
STATHIS, JH
[J]. APPLIED PHYSICS LETTERS, 1992, 61 (14) : 1649 - 1651
[7] VISIBLE-LIGHT EMISSION DUE TO QUANTUM SIZE EFFECTS IN HIGHLY POROUS CRYSTALLINE SILICON
CULLIS, AG
CANHAM, LT
[J]. NATURE, 1991, 353 (6342) : 335 - 338
[8] DUBIN VM, IN PRESS
[9] ITOH T, IN PRESS
[10] ON THE ORIGIN OF VISIBLE PHOTOLUMINESCENCE IN NANOMETER-SIZE GE CRYSTALLITES
KANEMITSU, Y
UTO, H
MASUMOTO, Y
MAEDA, Y
[J]. APPLIED PHYSICS LETTERS, 1992, 61 (18) : 2187 - 2189

← 1 2 3 →