Hierarchical Assembly of Ultranarrow Alkylamine-Coated ZnS Nanorods: A Synchrotron Surface X-Ray Diffraction Study

被引:36
作者
Belman, Nataly [1 ,6 ]
Acharya, Somobrata [1 ,2 ,6 ]
Konovalov, Oleg [3 ]
Vorobiev, Alexei [3 ]
Israelachvili, Jacob [4 ,5 ]
Efrima, Shlomo [6 ,7 ]
Golan, Yuval [1 ,6 ]
机构
[1] Ben Gurion Univ Negev, Dept Mat Engn, IL-84105 Beer Sheva, Israel
[2] Natl Inst Mat Sci, Res Ctr Mat Nanoarchitecton MANA, WPI, Tsukuba, Ibaraki 3050044, Japan
[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France
[4] Univ Calif Santa Barbara, Dept Mat, Dept Chem Engn, Santa Barbara, CA 93106 USA
[5] Univ Calif Santa Barbara, Mat Res Lab, Santa Barbara, CA 93106 USA
[6] Ben Gurion Univ Negev, Ilse Katz Inst Nanotechnol, IL-84105 Beer Sheva, Israel
[7] Ben Gurion Univ Negev, Dept Chem, IL-84105 Beer Sheva, Israel
基金
美国国家科学基金会;
关键词
D O I
10.1021/nl802287h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The packing of anisotropic ultranarrow nanoparticles (r <= 0.5 nm) in Langmuir films was investigated for two types of nanoparticles: short ZnS wires coated with tetradecylamine and ZnS rods coated with octadecylamine. In situ grazing incidence small-angle X-ray scattering (GISAXS) revealed the formation, even under zero pressure, of ordered superstructures on the water surface consisting of alternating nanoparticles. A hierarchical "packing model" is proposed, based on GISAXS, transmission electron microscopy, thermogravimetric analysis, and grazing incidence X-ray diffraction of pure surfactant Langmuir films.
引用
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页码:3858 / 3864
页数:7
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