Open AccessPHOTOABSORPTION OF COMPLEX THIN FILMS OF NOBLE METAL PARTICLES EMBEDDED IN MATRIX (Au-BaO,Cu-BaO)
Author(s) -
Lijun Li,
Wu Jin-Lei
Publication year - 1998
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.47.790
Subject(s) - materials science , thin film , noble metal , absorption spectroscopy , spectral line , absorption (acoustics) , metal , matrix (chemical analysis) , plasmon , surface plasmon , ultraviolet , transition metal , analytical chemistry (journal) , optics , optoelectronics , nanotechnology , composite material , physics , chemistry , metallurgy , biochemistry , chromatography , astronomy , catalysis
In this paper the ultraviolet—visible photoabsorption spectrum of the complex thin films of noble metal (Au,Cu) particles embedded in BaO matrix is measured.The absorption spectra of the two kinds of films are quite different.There are surface plasmon mode and band transition absorption in the spectrum of the Au-BaO thin film.However,several peaks appear in the spectrum of the Cu-BaO thin film,because Cu exists as very small particles in the matrix.The absorption spectrum is dependent on the metal content.