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

页码：129 / 133

页数：5

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