Tetrapod-Shaped Colloidal Nanocrystals of II-VI Semiconductors Prepared by Seeded Growth

被引：205

作者：

Fiore, Angela ^{[1
,2
]}

Mastria, Rosanna ^{[1
,2
]}

Lupo, Maria Grazia ^{[1
,2
,3
]}

Lanzani, Guglielmo ^{[3
,6
]}

Giannini, Cinzia ^{[4
]}

Carlino, Elvio ^{[5
]}

Morello, Giovanni ^{[1
,2
]}

De Giorgi, Milena ^{[1
,2
]}

Li, Yanqin ^{[1
,2
]}

Cingolani, Roberto ^{[1
,2
]}

Manna, Liberato ^{[1
,2
]}

机构：

[1] Scuola Super ISUFI, NNL, CNR INFM, I-73100 Lecce, Italy

[2] IIT Res Unit, I-73100 Lecce, Italy

[3] Politecn Milan, I-20133 Milan, Italy

[4] CNR IC, I-70126 Bari, Italy

[5] TASC INFM CNR Natl Lab, I-34012 Trieste, Italy

[6] Fdn Ist Italiano Tecnol, I-16163 Genoa, Italy

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2009年 / 131卷 / 06期

关键词：

CDSEXTE1-X NANOCRYSTALS; CONJUGATED POLYMERS; GOLD NANOPARTICLES; OPTICAL-PROPERTIES; CDTE NANOCRYSTALS; CDS NANOCRYSTALS; QUANTUM RODS; SOLAR-CELLS; NANORODS; MORPHOLOGY;

D O I：

10.1021/ja807874e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a general synthetic approach to tetrapod-shaped colloidal nanocrystals made of various combinations of II-VI semiconductors. Uniform tetrapods were prepared using preformed seeds in the sphalerite structure, onto which arms were grown by coinjection of the seeds and chemical precursors into a hot mixture of surfactants. By this approach, a wide variety of core materials could be chosen (in practice, most of the II-VI semiconductors that could be prepared in the sphalerite phase, namely, CdSe, ZnTe, CdTe); in contrast, the best materials for arm growth were CdS and CdTe. The samples were extensively characterized with the aid of several techniques.

引用

页码：2274 / 2282

页数：9

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