THE OPTICAL EXTINCTION OF LIGAND-STABILIZED AU13-CLUSTERS AND AU55-CLUSTERS - THE VANISHING OF THE MIE-RESONANCE

被引:0
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作者
HERMANN, M [1 ]
KREIBIG, U [1 ]
SCHMID, G [1 ]
机构
[1] UNIV ESSEN GESAMTHSCH,INST ANORGAN CHEM,W-4300 ESSEN 1,GERMANY
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中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
We present optical extinction spectra of ligand-stabilized Au-clusters Au(N) with sizes of N=13 and N=55. They are compared to larger, embedded clusters up to N=5.10(3) (diameter 5nm). The Mie resonance due to excitation of the dipole plasmon polariton vanishes with decreasing cluster size. For N>55, this effect has recently been interpreted as caused by smearing out of the interband transition edge of Au.
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页码:S1 / S3
页数:3
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