Investigation on Optical Absorption Property of Au/Si-NPA

Author

Li Kun ; Luo Yan-Wei ; Fu Xiao-nan

Author_Institution

Coll. of Sci., Henan Univ. of Technol., Zhengzhou, China

fYear

2010

fDate

19-21 June 2010

Firstpage

1

Lastpage

4

Abstract

Au/Si-NPA composite materials were fabricated by immersion plating method based on a substrate-silicon nanoporous pillar array(Si-NPA). Its surface morphology and optical absorption property were investigated. The optical absorption curves of the samples indicated that compared to pure Au nanoparticles, Surface Plasmon Resonance (SPR) peak of Au nanoparticles in the samples appeared a large blue-shift. And due to the limitations of the absorption of Au nanoparticles and the changes of Au/Si-NPA internal structure, samples´ optical absorption properties were reduced in the wavelength range of 800 nm~1000 nm and 1500~2000 nm.

Keywords

elemental semiconductors; gold; light absorption; nanocomposites; nanofabrication; nanoparticles; semiconductor-insulator boundaries; silicon; spectral line shift; surface morphology; surface plasmon resonance; Au-Si; blue shift; composite materials; immersion plating method; internal structure; nanoparticles; optical absorption curves; substrate-silicon nanoporous pillar array; surface morphology; surface plasmon resonance; Absorption; Composite materials; Gold; Nanocomposites; Nanoparticles; Nanoporous materials; Optical surface waves; Plasmons; Resonance; Surface morphology;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics and Optoelectronic (SOPO), 2010 Symposium on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-4963-7

Electronic_ISBN

978-1-4244-4964-4

Type

conf

DOI

10.1109/SOPO.2010.5504366

Filename

5504366