Optical absorption of small silver clusters: Agn, (n=4–22)
نویسندگان
چکیده
منابع مشابه
Optical response of small silver clusters
The time-dependent local density approximation is applied to the optical response of the silver clusters, Ag2, Ag3, Ag8 and Ag9 . The calculation includes all the electrons beyond the closed-shell Ag+11 ionic core, thus including for the first time explicitly the filled d-shell in the response. The excitation energy of the strong surface plasmon near 4 eV agrees well with experiment. The theore...
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We present a joint theoretical and experimental investigation of the absorption spectra of silver clusters Ag(n) (4<or=n<or=22). The experimental spectra of clusters isolated in an Ar matrix are compared with the calculated ones in the framework of the time-dependent density functional theory. The analysis of the molecular transitions indicates that the s-electrons are responsible for the optic...
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We present optical absorption and fluorescence spectra in the UV-visible range of size selected neutral Ag(n) clusters (n = 1-9) in solid neon. Rich and detailed optical spectra are found with linewidths as small as 50 meV. These spectra are compared to time dependent density functional theory implemented in the TURBOMOLE package. Excellent agreement between theory and experiment is achieved in...
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We have calculated the absorption characteristics of different hybrid systems consisting of Ag, Ag(2), or Ag(3) atomic clusters and poly(methacrylic acid) using the time-dependent density-functional theory. The polymer is found to have an extensive structural-dependency on the spectral patterns of the hybrid systems relative to the bare clusters. The absorption spectrum can be "tuned" to the vi...
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ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 2008
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.3013557