γ-Fe2O3/II-VI sulfide nanocrystal heterojunctions

被引：232

作者：

Kwon, KW ^{[1
]}

Shim, M ^{[1
]}

机构：

[1] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 29期

关键词：

D O I：

10.1021/ja051713q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Heterostructure nanocrystals (NCs) of gamma-Fe2O3 and MS (M = Zn, Cd, Hg) are synthesized. The large lattice mismatch between gamma-Fe2O3 and MS NCs leads to noncentrosymmetric structures. Crystallographic planes at the heterojunctions are identified by high-resolution transmission electron microscopy. Preferential formation of trimers and higher oligomers for ZnS and dimers or isolated particles for CdS and HgS with gamma-Fe2O3 NCs are observed and explained by changes in the effective mismatch between the coincidence lattices of the most commonly observed junction planes.

引用

页码：10269 / 10275

页数：7

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