Fabrication of Cu-coated Ag nanocrystals in silica by sequential ion implantation

被引：39

作者：

Anderson, TS

Magruder, RH ^{[1
]}

Wittig, JE

Kinser, DL

Zuhr, RA

机构：

[1] Belmont Univ, Dept Phys, Nashville, TN 37212 USA

[2] Booz Allen & Hamilton Inc, Mclean, VA 22102 USA

[3] Vanderbilt Univ, Mat Sci Program, Nashville, TN 37235 USA

[4] Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2000年 / 171卷 / 03期

关键词：

D O I：

10.1016/S0168-583X(00)00369-4

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Metal nanocrystal glass composites were fabricated by single and sequential element implantations of Ag+ and Cu+ ions into high purity silica. Implantation doses (x10(16) ions/cm(2)) were 3Ag, 9Cu and 3Ag/9Cu. Composites were analyzed using Rutherford backscattering techniques (RBS), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), and optical spectroscopy. An optical density spectrum based on the size distribution observed in the sequentially implanted sample for Cu shell and Ag core nanocrystals has been calculated using the dipole and quadrupole terms in a Mie series summation and is compared with the observed absorption spectrum. Results from TEM and EDS as well as the optical simulations demonstrate that Cu shell and Ag core nanocrystals are formed by the sequential implantation of Ag and Cu. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：401 / 405

页数：5

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