AGGREGATES OF SMALL SILVER PARTICLES IN SURFACE-LAYERS OF GLASSES - ELECTRON-MICROSCOPY AD OPTICAL MICROSPECTROSCOPY

被引:34
作者
BERGER, A [1 ]
BERG, KJ [1 ]
HOFMEISTER, H [1 ]
机构
[1] ACAD SCI GDR,INST FESTKORPERPHYS & ELEKTR MIKROSKOPIE,O-4050 HALLE,GERMANY
来源
ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS | 1991年 / 20卷 / 1-4期
关键词
61.40.D; 78.00; 82.70;
D O I
10.1007/BF01543999
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
In glasses containing antimony or arsenic in the order of 1 weight-% the treatment with a silver-containing paste yields a dark-red surface layer. Transmission electron microscopy shows that there are aggregates of spherical silver particles in the coloured layer. Optical microspectroscopy proves extinction spectra consisting of two bands. Comparing these spectra with calculated ones reveals that the two bands can be explained by the existence of aggregates. The change of the extinction within the coloured layer is a result of the mutually different spatial arrangements of the silver particles which were found by electron microscopy.
引用
收藏
页码:313 / 315
页数:3
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