Electronic states and optical properties of silicon nanocrystals terminated by dimers

被引：12
|
作者：
Nishida, M [1 ]
机构：
[1] Kanazawa Inst Technol, Dept Phys, Nonoichi, Ishikawa 9218501, Japan
来源：
SOLID STATE COMMUNICATIONS | 2000年 / 116卷 / 12期
关键词：
nanostructures; semiconductors; electronic states (localized); optical properties;
D O I：
10.1016/S0038-1098(00)00407-5
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
An electronic state calculation for Si nanocrystals terminated by Si-Si dimers is reported by using the extended Huckel-type nonorthogonal tight-binding method. It is shown that dimer-related surface states appear in the range up to 1 eV below the conduction band edge in all the Si nanocrystals studied, in good agreement with experimentally observed electron trap states in porous Si, and that these surface states in the dimer configuration have stronger optical coupling with the valence band edge in Si nanocrystals than the conduction band edge in the dihydride-terminated configuration, explaining a significant part of the mechanisms governing the luminescence properties of porous Si. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：655 / 659
页数：5
相关论文
共 50 条
  • [31] Electronic and Optical Properties of Dislocations in Silicon
    Reiche, Manfred
    Kittler, Martin
    CRYSTALS, 2016, 6 (07):
  • [32] Structural and electronic properties of oxidized silicon-terminated diamond surface
    Yang, Yuhan
    Li, Xiaoyu
    Gao, Nan
    Li, Hongdong
    SURFACES AND INTERFACES, 2025, 58
  • [33] Optical properties of silicon nanocrystals formed by ion implantation
    Wu, MH
    Ueda, A
    Mu, R
    Henderson, DO
    Zuhr, A
    Meldrum, A
    White, CW
    PROCEEDINGS OF THE FIFTH INTERNATIONAL SYMPOSIUM ON QUANTUM CONFINEMENT: NANOSTRUCTURES, 1999, 98 (19): : 106 - 117
  • [34] Optical properties of silicon nanocrystals synthesized in supercritical fluids
    Pell, L
    Korgel, B
    OPTICAL PROPERTIES OF NANOCRYSTALS, 2002, 4808 : 91 - 98
  • [35] Dielectric effects on the optical properties of single silicon nanocrystals
    El-Kork, Nayla
    Huisken, Friedrich
    von Borczyskowski, Christian
    JOURNAL OF APPLIED PHYSICS, 2011, 110 (07)
  • [36] Optical properties of metal-coated silicon nanocrystals
    Korovin, SB
    Krinetskii, BB
    Pustovoi, VI
    Fadeeva, S
    Konstantaki, M
    Koudoumas, E
    Couris, S
    ALT'99 INTERNATIONAL CONFERENCE ON ADVANCED LASER TECHNOLOGIES, 2000, 4070 : 465 - 471
  • [37] Optical properties of silicon nanocrystals:: A first principles study
    Ögüt, S
    Chelikowsky, JR
    Louie, SG
    OPTICAL PROPERTIES OF MATERIALS, 2000, 579 : 81 - 89
  • [38] Surface oxidation effects on the optical properties of silicon nanocrystals
    Vasiliev, I
    Chelikowsky, JR
    Martin, RM
    PHYSICAL REVIEW B, 2002, 65 (12): : 1 - 4
  • [39] Synthesis, optical properties and photoluminescence quenching of silicon nanocrystals
    Li, ST
    ElShall, MS
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1997, 214 : 51 - PHYS
  • [40] Structural and optical properties of silicon nanocrystals embedded in silicon oxide films
    Miu, M
    Angelescu, A
    Kleps, I
    Simion, M
    Bragaru, A
    TOWARDS THE FIRST SILICON LASER, 2003, 93 : 139 - 144
12345