Photochemical Formation of Silver Nanodecahedra: Structural Selection by the Excitation Wavelength

• NCJ Number: 304225
• Journal: Langmuir Volume: 25 Issue: 6 Dated: 2009 Pages: 3802–3807
• Author(s): Xianliang Zheng; Xingjia Zhao; Dangwei Guo; Bin Tang; Shuping Xu; Bing Zhao; Weiqing Xu; John R. Lombardi
• Date Published: 2009
• Length: 6 pages
• Grant Number(s): 2006-DN-BX-K034
• Agencies: NIJ-Sponsored
• Publication Type: Research (Applied/Empirical)
• Award: Development of Advanced Raman Spectroscopy Methods and Databases for the Evaluation of Trace Evidence and the Examination of Questioned Documents

Annotation

This article reports on a project in which silver decahedra were  successfully synthesized with high yield via a photochemical reaction using blue light-emitting diodes (LEDs) as the exciting light source.

 

Abstract

The decahedra display distinct properties with respect to the ability of light scattering. The photochemical growth process of silver decahedra was monitored by both extinction and scattering spectral evolution. A suggested formation mechanism of silver decahedron is discussed. (publisher abstract modified)