Synthesis, Two-Dimensional Assembly, and Surface Pressure-Induced Coalescence of Ultranarrow PbS Nanowires
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- 作者：Israel Patla ; Somobrata Acharya ; Leila Zeiri ; Jacob Israelachvili ; Shlomo Efrima ; Yuval Golan
- 刊名：Nano Letters
- 出版年：2007
- 出版时间：June 2007
- 年：2007
- 卷：7
- 期：6
- 页码：1459 - 1462
- 全文大小：169K
- 年卷期：v.7,no.6(June 2007)
- ISSN：1530-6992
文摘
Ultranarrow (1.8 nm) PbS nanowires are synthesized in a single step, under benchtop conditions at relatively low temperature (90 
C). Thenanowires exhibit a nearly perfect crystal lattice, high width uniformity, and tight side-by-side registry. Two-dimensional (2D) assembly overlarge areas (>15 
m2) is achieved using the Langmuir Blodgett method. The wire width can be readily controlled in the range 1.8-10 nm bya surface pressure-induced coalescence reaction, as monitored by transmission electron microscopy and Raman spectroscopy. The fluorescenceof the 2D assembly shows strong polarization dependence along the long axis of the wires, making the system potentially suitable for orientation-sensitive devices.
C). Thenanowires exhibit a nearly perfect crystal lattice, high width uniformity, and tight side-by-side registry. Two-dimensional (2D) assembly overlarge areas (>15 m2) is achieved using the Langmuir Blodgett method. The wire width can be readily controlled in the range 1.8-10 nm bya surface pressure-induced coalescence reaction, as monitored by transmission electron microscopy and Raman spectroscopy. The fluorescenceof the 2D assembly shows strong polarization dependence along the long axis of the wires, making the system potentially suitable for orientation-sensitive devices.