Epitaxial CdSe-Au Nanocrystal Heterostructures by Thermal Annealing

被引：136

作者：

Figuerola, Albert ^{[1
]}

van Huis, Marijn ^{[2
,3
]}

Zanella, Marco ^{[1
]}

Genovese, Alessandro ^{[1
]}

Marras, Sergio ^{[1
]}

Falqui, Andrea ^{[1
]}

Zandbergen, Henny W. ^{[2
]}

Cingolani, Roberto ^{[1
]}

Manna, Liberato ^{[1
]}

机构：

[1] Ist Italino Tecnol, I-16163 Genoa, Italy

[2] Delft Univ Technol, Kavli Inst Nanosci, NL-2628 CJ Delft, Netherlands

[3] Univ Antwerp, EMAT, B-2020 Antwerp, Belgium

来源：

NANO LETTERS | 2010年 / 10卷 / 08期

关键词：

Nanorods; nanocrystals; self-assembly; epitaxy; orientation relationship; interface; hybrid nanocrystals; gold; cadmium selenide; annealing; HYBRID NANOCRYSTALS; GOLD NANOPARTICLES; SEMICONDUCTOR NANORODS; SELECTIVE GROWTH; NANODUMBBELLS; NUCLEATION; DEPOSITION; INTERFACES; ELECTRON; OXIDE;

D O I：

10.1021/nl101482q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The thermal evolution of a collection of heterogeneous CdSe-Au nanosystems (Au-decorated CdSe nanorods, networks, vertical assemblies) prepared by wet-chemical approaches was monitored in situ in the transmission electron microscope. In contrast to interfaces that are Formed during kinetically controlled wet chemical synthesis, heating under vacuum conditions results in distinct and well-defined CdSe/Au interfaces, located at the CdSe polar surfaces. The high quality of these interfaces should make the heterostructures more suitable for use in nanoscale electronic devices.

引用

页码：3028 / 3036

页数：9

共 58 条

[1]

[Anonymous], 1916, Phys. Zeits

[2]

Baker JL, 2010, NANO LETT, V10, P195, DOI [10.1021/nl903187v, 10.1021/nl903187V]

[3] Molecular dynamics simulations of surface diffusion and growth on silver and gold clusters [J].