Size and Shape Control of Colloidal Copper(I) Sulfide Nanorods
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- 作者：Marta Kruszynska ; Holger Borchert ; Alicja Bachmatiuk ; Mark H. R眉mmeli ; Bernd B眉chner ; J眉rgen Parisi ; Joanna Kolny-Olesiak
- 刊名：ACS Nano
- 出版年：2012
- 出版时间：July 24, 2012
- 年：2012
- 卷：6
- 期：7
- 页码：5889-5896
- 全文大小：1808K
- 年卷期：v.6,no.7(July 24, 2012)
- ISSN：1936-086X
文摘
Many physical and chemical properties of semiconducting nanocrystals strongly depend on their spatial dimensions and crystallographic structure. For these reasons, achieving a high degree of size and shape control plays an important role with respect to their application potential. In this report we present a facile route for the direct colloidal synthesis of copper(I) sulfide nanorods. A high reactivity of the starting materials is essential to obtain nanorods. We achieve this by using a thiol that thermally decomposes easily and serves as the sulfur source. The thiol is mixed in a noncoordinating solvent, which acts as the reaction medium. Adjustment of the nucleation temperature makes it possible to tailor uniform nanorods with lengths from 10 to 100 nm. The nanorods are single crystalline, and the growth direction is shown to occur along the a-axis of djurleite. The growth process and character of the nanorods were investigated through UV鈥搗is and NIR absorption spectroscopy, transmission electron microscopy, and powder X-ray diffraction measurements.