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Fabrication of Hollow Metal “Nanocaps” and Their Red‐Shifted Optical Absorption Spectra
Author(s) -
Liu J.,
Maaroof A. I.,
Wieczorek L.,
Cortie M. B.
Publication year - 2005
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200500035
Subject(s) - materials science , deposition (geology) , absorption (acoustics) , metal , fabrication , absorption spectroscopy , nanoparticle , polymer , spectral line , chemical vapor deposition , particle (ecology) , infrared spectroscopy , infrared , optics , nanotechnology , composite material , metallurgy , organic chemistry , chemistry , medicine , paleontology , oceanography , alternative medicine , physics , pathology , astronomy , sediment , geology , biology
Cap‐shaped metal nanoparticles (see Figure) have optical spectra with significant absorption in the infrared. Such shapes, produced by physical vapor deposition onto a polymer‐particle template, can be readily separated from one another provided that deposition is carried out at an inclination to the plane of the template. The effect of composition, angle of deposition, and thickness on the properties of the cap‐shaped particles is discussed.