Formation of semiconductor clusters in zeolites

被引:22
作者
Iacomi, F [1 ]
机构
[1] Al I Cuza Univ, Fac Phys, RO-6600 Iasi, Romania
关键词
zeolites; clusters; visible/ultraviolet absorption spectroscopy; photoluminescence; semiconducting surfaces;
D O I
10.1016/S0039-6028(03)00446-1
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
US and ZnS particles were synthesised inside some synthetic and natural zeolite frameworks by treating the calcined Cd2+ or Zn2+ ion exchanged forms with 1 molar aqueous solution of Na2S. The absorption and photoluminescence e. mission spectra suggest that clusters interconnect to form well-defined aggregates with a behaviour intermediate between that of discrete clusters and the bulk semiconductor. The dynamics and the optical absorption are strongly influenced by the interface and host. (C) 2003 Elsevier Science B.V. All rights reserved.
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页码:816 / 821
页数:6
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