Optical properties of silver nanocrystal synthesized by a new srategies: Experiments supported by DDA calculation

Author

Zhi Yang ; Minqiang Wang ; Mayue Shi ; Yanhua Shi ; Xi Yao

Author_Institution

Key Lab. of the Minist. of Educ. & Int. Center for Dielectr. Res., Xi´an Jiaotong Univ., Xi´an, China

fYear

2012

Firstpage

1

Lastpage

6

Abstract

In order to understand surface plasmon resonance of metal nanocrystals, we have produced sphere silver nanocrystals (AgNCs) by liquid-solid-solution (LSS) method. The synthesized AgNCs have high extinction coefficient and narrow size distribution. This provides a convenience for studying optical surface plasmon resonance (SPR) properties of AgNCs. Based on these excellent properties, we calculate the extinction spectrum of AgNCs, electrical field distribution near the AgNCs by discrete dipole approximation (DDA) method and investigate the effect of size, incident wavelength and material on electrical field distribution. These results could be helpful for us to simulate optical properties of real metal NCs more accurately, study optical properties of AgNCs periodic structure and engineer AgNCs with new plasmonic properties.

Keywords

extinction coefficients; nanofabrication; nanostructured materials; periodic structures; silver; surface plasmon resonance; ultraviolet spectra; visible spectra; Ag; DDA calculation; discrete dipole approximation; electrical field distribution; extinction coefficient; extinction spectrum; liquid-solid-solution method; metal nanocrystals; optical properties; periodic structure; plasmonic properties; size distribution; sphere silver nanocrystals; surface plasmon resonance; Optical imaging; Optical surface waves; Quantum well devices; Sea surface; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology (IEEE-NANO), 2012 12th IEEE Conference on

Conference_Location

Birmingham

ISSN

1944-9399

Print_ISBN

978-1-4673-2198-3

Type

conf

DOI

10.1109/NANO.2012.6322031

Filename

6322031