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

共 49 条

[41]

Trampert A, 2000, CRYST RES TECHNOL, V35, P793, DOI 10.1002/1521-4079(200007)35:6/7<793::AID-CRAT793>3.0.CO

[42]

2-3

[43] Electrochromic nanocrystal quantum dots [J].

Wang, CJ ;

Shim, M ;

Guyot-Sionnest, P .

SCIENCE, 2001, 291 (5512) :2390-2392

[44] Semiconductor quantum dot-labeled microsphere bioconjugates prepared by stepwise self-assembly [J].

Wang, DY ;

Rogach, AL ;

Caruso, F .

NANO LETTERS, 2002, 2 (08) :857-861

[45] NANOMETER-SIZED SEMICONDUCTOR CLUSTERS - MATERIALS SYNTHESIS, QUANTUM SIZE EFFECTS, AND PHOTOPHYSICAL PROPERTIES [J].

WANG, Y ;

HERRON, N .

JOURNAL OF PHYSICAL CHEMISTRY, 1991, 95 (02) :525-532

[46] Electron and hole injection in PbSe quantum dot films [J].

Wehrenberg, BL ;

Guyot-Sionnest, P .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (26) :7806-7807

[47] Single-crystal metallic nanowires and metal/semiconductor nanowire heterostructures [J].

Wu, Y ;

Xiang, J ;

Yang, C ;

Lu, W ;

Lieber, CM .

NATURE, 2004, 430 (6995) :61-65

[48] Dumbbell-like bifunctional Au-Fe3O4 nanoparticles [J].

Yu, H ;

Chen, M ;

Rice, PM ;

Wang, SX ;

White, RL ;

Sun, SH .

NANO LETTERS, 2005, 5 (02) :379-382

[49] Cadmium selenide quantum wires and the transition from 3D to 2D confinement [J].

Yu, H ;

Li, JB ;

Loomis, RA ;

Gibbons, PC ;

Wang, LW ;

Buhro, WE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (52) :16168-16169

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