Fabrication of CdS/Ag hybrid quantum dot composites using a melt/quench method

被引:5
作者
Ko, MJ [1 ]
Plawsky, J [1 ]
Birnboim, M [1 ]
机构
[1] RENSSELAER POLYTECH INST,TROY,NY 12180
关键词
D O I
10.1016/0022-3093(96)00484-X
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
CdS/Ag coated particles of nanometer dimensions have been fabricated in a glass host by a modified melt/quench process. These coated particles exhibit surface plasmon resonance absorption spectra which are red-shifted, as compared to that of a dispersion of homogeneous Ag particles of similar size in the same host. This phenomenon is interpreted within the context of Maxwell-Garnett theory for small volume fractions. The calculated absorption spectra of coated Ag particles agree well with experimental results. Processing conditions determine whether metal-coated semiconductor or semiconductor-coated metal particles are formed.
引用
收藏
页码:211 / 216
页数:6
相关论文
共 22 条
[1]  
Bailar J. C., 1973, COMPREHENSIVE INORGA, V3
[2]   THE QUANTUM-MECHANICS OF LARGER SEMICONDUCTOR CLUSTERS (QUANTUM DOTS) [J].
BAWENDI, MG ;
STEIGERWALD, ML ;
BRUS, LE .
ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 1990, 41 :477-496
[3]  
BIRNBOIM MH, 1990, MATER RES SOC SYMP P, V164, P277
[4]   QUANTUM CRYSTALLITES AND NONLINEAR OPTICS [J].
BRUS, L .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1991, 53 (06) :465-474
[5]  
DARKEN LS, 1953, PHYSICAL CHEM METALS
[6]  
DOUGLAS RW, 1974, P 10 INT C GLASS CER, V1, P45
[7]  
Edwards D.F., 1985, Handbook of optical constants of solids
[8]   OPTICAL NONLINEARITIES OF SMALL METAL PARTICLES - SURFACE-MEDIATED RESONANCE AND QUANTUM SIZE EFFECTS [J].
HACHE, F ;
RICARD, D ;
FLYTZANIS, C .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1986, 3 (12) :1647-1655
[9]   VERY LARGE OPTICAL NONLINEARITY OF SEMICONDUCTOR MICROCRYSTALLITES [J].
HANAMURA, E .
PHYSICAL REVIEW B, 1988, 37 (03) :1273-1279
[10]   OPTICAL BISTABILITY IN SMALL METALLIC PARTICLE COMPOSITES [J].
HAUS, JW ;
KALYANIWALLA, N ;
INGUVA, R ;
BOWDEN, CM .
JOURNAL OF APPLIED PHYSICS, 1989, 65 (04) :1420-1423