Selective growth of PbSe on one or both tips of colloidal semiconductor nanorods

被引：205
作者：
Kudera, S
Carbone, L
Casula, MF
Cingolani, R
Falqui, A
Snoeck, E
Parak, WJ
Manna, L
机构：
[1] Univ Munich, Ctr Nanosci, Munich, Germany
[2] INFM, Natl Nanotechnol Lab, I-73100 Lecce, Italy
[3] Univ Cagliari, Dipartimento Sci Chim, I-09042 Cagliari, Italy
[4] CNRS, CEMES, F-31055 Toulouse, France
来源：
NANO LETTERS | 2005年 / 5卷 / 03期
关键词：
D O I：
10.1021/nl048060g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
PbSe nanocrystals with rock-salt structure are grown on the tips of colloidal US and CdSe nanorods. The facets of wurtzite rods provide a substrate with various degrees of reactivity for the growth of PbSe. The presence of dangling Cd bonds may explain subtle differences between nonequivalent facets resulting in the selective nucleation of PbSe only on one of the two tips of each US rod. This approach has the potential to facilitate the fabrication of heterostructures with tailored optical and electronic properties.
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收藏
页码：445 / 449
页数：5
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