Self-assembled stripe patterns of CdS nanorods

被引：109

作者：

Ghezelbash, Ali ^{[1
]}

Koo, Bonil ^{[1
]}

Korgel, Brian A. ^{[1
]}

机构：

[1] Univ Texas, Texas Mat Inst, Ctr Nano & Mol Sci & Technol, Dept Chem Engn, Austin, TX 78712 USA

来源：

NANO LETTERS | 2006年 / 6卷 / 08期

关键词：

D O I：

10.1021/nl061035l

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Sterically stabilized CdS nanorods, 3-5 nm in diameter with aspect ratios ranging from 4 to 15, were observed to self-align into networks of stripes several micrometers long when drop-cast from dispersions at submonolayer coverage. The stripes are two to three nanorods thick with nanorods assembled side-by-side with their long axes parallel to the stripe direction. Energetic forces between nanorods, such as van der Waals and dipole-dipole attractions, favor parallel nanorod alignment; however, we propose that pattern formation is kinetically limited, or mediated, by solvent evaporation.

引用

页码：1832 / 1836

页数：5

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[1] Phase behavior of two-dimensional hard rod fluids [J].

Bates, MA ;

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JOURNAL OF CHEMICAL PHYSICS, 2000, 112 (22) :10034-10041

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[3] Growth and morphology of cadmium chalcogenides:: the synthesis of nanorods, tetrapods, and spheres from CdO and Cd(O2CCH3)2 [J].

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Headley, TJ ;

Colvin, VL .

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[4] Capillarity-driven assembly of two-dimensional cellular carbon nanotube foams [J].

Chakrapani, N ;

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Carrillo, A ;

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[5] Fabrication and alignment of wires in two dimensions [J].

Chung, SW ;

Markovich, G ;

Heath, JR .

JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (35) :6685-6687

[6] Time-resolved small-angle X-ray scattering studies of nanocrystal superlattice self-assembly [J].

Connolly, S ;

Fullam, S ;

Korgel, B ;

Fitzmaurice, D .

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[7] MECHANISM OF FORMATION OF 2-DIMENSIONAL CRYSTALS FROM LATEX-PARTICLES ON SUBSTRATES [J].

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IVANOV, IB ;

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NAGAYAMA, K .

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[8] Kinetic bottleneck to the self-organization of bidisperse hard disk monolayers formed by random sequential adsorption [J].

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Bonnecaze, RT ;

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Chaudret, B ;

Amiens, C ;

Respaud, M ;

Fejes, P ;

Renaud, P ;

Zurcher, P .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (42) :5213-5216

[10] Evidence for spinodal phase separation in two-dimensional nanocrystal self-assembly [J].

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