Self-assembly of gold nanoparticles on a single crystalline sapphire substrate

被引：3
|
作者：
Takahashi, Hiroyuki [1 ]
Shirahata, Naoto [2 ]
Narushima, Takashi [1 ]
Yonezawa, Tetsu [1 ]
机构：
[1] Hokkaido Univ, Fac Engn, Div Mat Sci & Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan
[2] Natl Inst Mat Sci, Int Ctr Mat Nanoartchitecgon MANA, Tsukuba, Ibaraki 3050047, Japan
来源：
APPLIED SURFACE SCIENCE | 2012年 / 262卷
关键词：
Sapphire; Gold; Nanoparticle; Immobilization; SAM; SURFACE; SILICON;
D O I：
10.1016/j.apsusc.2012.03.079
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Single crystalline sapphire is an atomically flat substrate with a high transparency in a wide wavelength region. However, its surface is chemically stable so that the modification by a self-assembled monolayer is somewhat difficult. We have used a H2O2 treatment at 70 degrees C to activate the surface and modified with a silan coupling reagent. The modification of the surface is discussed with the water contact angle. Immobilization of citrate-stabilized anionic gold nanoparticles on a cationically modified sapphire surface was carried out. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：129 / 133
页数：5
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