Spherical SiGe quantum dots prepared by thermal evaporation

被引:13
作者
Liao, YC [1 ]
Lin, SY
Lee, SC
Chia, CT
机构
[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10764, Taiwan
[2] Natl Taiwan Normal Univ, Dept Phys, Taipei 117, Taiwan
关键词
D O I
10.1063/1.1334649
中图分类号
O59 [应用物理学];
学科分类号
摘要
SiGe alloy quantum dots with spherical shape have been synthesized by the thermal evaporation method. The shape and structure of these dots have been investigated. Transmission electron microscopy images show that they have an average diameter of about 15 nm, and their cores are crystalline. The composition of these dots could be extracted from the Raman peak position of the silicon TO phonon. (C) 2000 American Institute of Physics. [S0003- 6951(00)02752-2].
引用
收藏
页码:4328 / 4329
页数:2
相关论文
共 9 条
[1]   RAMAN-SPECTRA OF C-SI1-XGEX ALLOYS [J].
ALONSO, MI ;
WINER, K .
PHYSICAL REVIEW B, 1989, 39 (14) :10056-10062
[2]   Optical transition in SiGe self-organized dots [J].
Chen, H ;
Cheng, WQ ;
Xie, XG ;
Huang, Q ;
Zhou, JM .
APPLIED PHYSICS LETTERS, 1997, 70 (04) :446-448
[3]   LOW-TEMPERATURE SYNTHESIS OF GE NANOCRYSTALS IN SIO2 [J].
CRACIUN, V ;
BOYD, IW ;
READER, AH ;
VANDENHOUDT, DEW .
APPLIED PHYSICS LETTERS, 1994, 65 (25) :3233-3235
[4]   ULTRAFINE METAL PARTICLES [J].
GRANQVIST, CG ;
BUHRMAN, RA .
JOURNAL OF APPLIED PHYSICS, 1976, 47 (05) :2200-2219
[5]   Emission spectra and mode structure of InAs/GaAs self-organized quantum dot lasers [J].
Harris, L ;
Mowbray, DJ ;
Skolnick, MS ;
Hopkinson, M ;
Hill, G .
APPLIED PHYSICS LETTERS, 1998, 73 (07) :969-971
[6]   STRONG BLUE-LIGHT EMISSION FROM AN OXYGEN-CONTAINING SI FINE-STRUCTURE [J].
MORISAKI, H ;
HASHIMOTO, H ;
PING, FW ;
NOZAWA, H ;
ONO, H .
JOURNAL OF APPLIED PHYSICS, 1993, 74 (04) :2977-2979
[7]   ABOVE-BAND-GAP PHOTOLUMINESCENCE FROM SI FINE PARTICLES WITH OXIDE SHELL [J].
MORISAKI, H ;
PING, FW ;
ONO, H ;
YAZAWA, K .
JOURNAL OF APPLIED PHYSICS, 1991, 70 (03) :1869-1870
[8]   Growth of self-assembled homogeneous SiGe-dots on Si(100) [J].
Schittenhelm, P ;
Abstreiter, G ;
Darhuber, A ;
Bauer, G ;
Werner, P ;
Kosogov, A .
THIN SOLID FILMS, 1997, 294 (1-2) :291-295
[9]   Room temperature electroluminescence of nanofabricated Si-Si1-xGex quantum dot diodes [J].
Tang, YS ;
Torres, CMS ;
Ni, WX ;
Hansson, GV .
SUPERLATTICES AND MICROSTRUCTURES, 1996, 20 (04) :505-511