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Characterization of the optical properties of silver nanoparticle films

Byung-hee Choi1, Hyun-Ho Lee1, Sunmi Jin1, Sangki Chun2 and Sang-Ho Kim1

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To understand the collective properties of nanoparticles, it is necessary to control the particle size, spacing and ordering. Here we describe the chemical synthesis of well-controlled silver nanoparticles, the wet coat preparation and the optical properties of its film. The light incidence angle and polarization dependency of the resonant spectra show distinctive surface plasmon resonance extinction peaks for isolated particles and the coupled modes of neighbouring particles. Furthermore, we discuss the thermal treatment and dielectric surrounding effects on the optical properties of silver nanoparticle film.


PACS

78.67.Bf Nanocrystals and nanoparticles

81.40.Gh Other heat and thermomechanical treatments

78.66.Bz Metals and metallic alloys

Subjects

Surfaces, interfaces and thin films

Condensed matter: structural, mechanical & thermal

Nanoscale science and low-D systems

Dates

Issue 7 (21 February 2007)

Received 29 September 2006, in final form 8 December 2006

Published 12 January 2007



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