Syntheses and applications of small metallic nanorods from solution and physical vapor deposition

Nanotechnology Reviews

article

Stephen P. Stagon¹  Hanchen Huang¹ 

[1] Department of Mechanical Engineering, University of Connecticut

关键词: glancing angle deposition;    nanofabrication;    nanorod;    physical vapor deposition;    solution synthesis;   

DOI  :  10.1515/ntrev-2013-0001

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

Metallic nanorods have a wide range of important technological applications. Fabrication of metallic nanorods of ~100 nm using physical vapor deposition (PVD) has been commonplace for several decades. On this length scale, nanorods have similar functionalities to bulk thin films with the advantage of increased surface area. When the lateral dimension is decreased to ~10 nm new functionalities emerge that are not present in thin film counterparts, such as catalysis. Small metallic nanorods, those ~10 nm, have classically been made through solution-based synthesis. Alternatively, recent advances in scientific understanding, a framework of nanorod growth, have opened the door to the fabrication of small nanorods through PVD. Growing small nanorods through PVD offers technologically relevant advantages over solution-based processing like direct control of aspect ratio, pure high-vacuum processing, and oriented attachment to a substrate. Among materials, gold (Au) has a wide range of technological applications and is a good prototype for understanding the behavior of common face center cubic metals. This article reviews solution processing and PVD of small metallic nanorods using Au as a prototype, in terms of scientific understanding and fabrication knowledge, and further compares and contrasts the two approaches.

【 授权许可】

CC BY