Investigation of ZnS passivated InP nanocrystals by XPS

被引：78

作者：

Borchert, H

Haubold, S

Haase, M

Weller, H

机构：

[1] Univ Hamburg, Inst Phys Chem, D-20146 Hamburg, Germany

[2] DESY, HASYLAB, D-22603 Hamburg, Germany

来源：

NANO LETTERS | 2002年 / 2卷 / 02期

关键词：

D O I：

10.1021/nl0156585

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

ZnS passivated InP nanoparticles prepared by the TOP/TOPO method have been investigated by photoelectron spectroscopy with tunable synchrotron radiation. Based on the energy dependence of the electron escape depth, we present a method to characterize the core-shell nature of the sample structure, Energy tuning indicates that In is confined to the core of the particles while Zn is located in a surrounding shell. Computer simulation allows us to quantify these results and to extract average layer thicknesses.

引用

页码：151 / 154

页数：4

共 19 条

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