Ion Exchange Synthesis of III-V Nanocrystals

被引：142

作者：

Beberwyck, Brandon J. ^{[1
,3
]}

Alivisatos, A. Paul ^{[1
,2
,3
]}

机构：

[1] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 49期

基金：

美国能源部;

关键词：

HIGH-QUALITY INP; CATION-EXCHANGE; QUANTUM DOTS; MONODISPERSE; SIZE; PHASE; BLUE; GAP;

D O I：

10.1021/ja309416c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

III-V nanocrystals displaying high crystallinity and low size dispersity are difficult to access by direct synthesis from molecular precursors. Here, we demonstrate that cation exchange of cadmium pnictide nanocrystals with group 13 ions yields monodisperse, crystalline III-V nanocrystals, including GaAs, InAs, GaP, and InP. This report highlights the versatility of cation exchange for accessing nanocrystals with covalent lattices.

引用

页码：19977 / 19980

页数：4

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