Substrate-based galvanic replacement reactions carried out on heteroepitaxially formed silver templates

作     者：Kyle D. Gilroy Pouyan Farzinpour Aarthi Sundar Teng Tan Robert A. Hughes Svetlana Neretina 

作者机构：College of Engineering Temple University Philadelphia 19122 USA Department of Physics Temple University Philadelphia 19122 USA 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2013年第6卷第6期

页      面：418-428页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 0808[工学-电气工程] 081704[工学-应用化学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：This work is funded by the National Science Foundation (NSF) CAREER Award 

主　　题：galvanic replacement heteroepitaxy nanohut nanobowl semishell plasmon 

摘      要：Galvanic replacement reactions have been widely used to transform solution dispersed silver template structures into intricate nanoshell geometries. Here, we report on the use of these same reactions to form hollow substrate-supported Au-Ag nanoshells from silver templates having a heteroepitaxial relationship with the underlying single crystal substrate. The structures obtained exhibit a nanohut geometry, show highly tunable plasmonic properties and are formed as periodic arrays using a lithography-free technique. When removed from the substrate the inverted nanohuts appear as nanobowls with a notch in the rim. The study lays the groundwork for wafer-based devices utilizing nanoshells located at site-specific locations.