The size control of silver nano-particles in SiO₂ matrix film

Authors: Kurihara, Kazuma; Rockstuhl, Carsten; Nakano, Takashi; Arai, Tomofumi; Tominaga, Junji

Source: Nanotechnology, Volume 16, Number 9, September 2005 , pp. 1565-1568(4)

Publisher: Institute of Physics Publishing

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Abstract:

We provide a fabrication method for silver nano-particles with a uniform particle size using vacuum deposition. The size uniformity was controlled by a small amount of neodymium–copper (Nd–Cu) as a co-sputtered material. Particles with a size of 20 ± 7 nm dispersed in a SiO₂ matrix have been obtained. The full width at half maximum of the plasmon resonance in the optical spectrum by the silver–neodymium–copper (Ag–Nd–Cu) nano-particles was only half of the size compared with the spectral width of a pure Ag nano-particle system. The effect is attributed to an increased uniformity in the particle size.

Document Type: Research article

DOI: 10.1088/0957-4484/16/9/026

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