Dynamic growth modes of ordered arrays and mesocrystals during drop-casting of iron oxide nanocubes

被引：27

作者：

Agthe, Michael ^{[1
]}

Wetterskog, Erik ^{[1
]}

Mouzon, Johanne ^{[2
]}

Salazar-Alvarez, German ^{[1
]}

Bergstrom, Lennart ^{[1
]}

机构：

[1] Stockholm Univ, Dept Mat & Environm Chem, Arrhenius Lab, SE-10691 Stockholm, Sweden

[2] Lulea Univ Technol, Div Sustainable Proc Engn, SE-97187 Lulea, Sweden

来源：

CRYSTENGCOMM | 2014年 / 16卷 / 08期

基金：

瑞典研究理事会;

关键词：

NANOCRYSTALS; EVAPORATION; NANOSTRUCTURES; SUPERLATTICES; PHASE; SIZE; CRYSTALLINE; ORIENTATION; TRACKING; COLLOIDS;

D O I：

10.1039/c3ce41871e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The growth modes of self-assembled mesocrystals and ordered arrays from dispersions of iron oxide nanocubes with a mean edge length of 9.6 nm during controlled solvent removal have been investigated with a combination of visible light video microscopy, atomic force microscopy and scanning electron microscopy. Mesocrystals with translational and orientational order of sizes up to 10 mu m are formed spontaneously during the final, diffusion-controlled, drop-casting stage when the liquid film is very thin and the particle concentration is high. Convection-driven deposition of ordered nanocube arrays at the edge of the drying droplet is a manifestation of the so called coffee-ring effect. Dendritic growth or fingering of rapidly growing arrays of ordered nanocubes could also be observed in a transition regime as the growth front moves from the initial three-phase contact line towards the centre of the original droplet.

引用

页码：1443 / 1450

页数：8

共 72 条

[1] Colloidal crystallization and banding in a cylindrical geometry [J].

Abkarian, M ;

Nunes, J ;

Stone, HA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (19) :5978-5979

[2] Magnetic field-induced assembly of oriented superlattices from maghemite nanocubes [J].

Ahniyaz, Anwar ;

Sakamoto, Yasuhiro ;

Bergstrom, Lennart .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2007, 104 (45) :17570-17574

[3] Aggregation-based crystal growth and microstructure development in natural iron oxyhydroxide biomineralization products [J].

Banfield, JF ;

Welch, SA ;

Zhang, HZ ;

Ebert, TT ;

Penn, RL .

SCIENCE, 2000, 289 (5480) :751-754

[4] Evaporation and fluid dynamics of a sessile drop of capillary size [J].

Barash, L. Yu. ;

Bigioni, T. P. ;

Vinokur, V. M. ;

Shchur, L. N. .

PHYSICAL REVIEW E, 2009, 79 (04)

[5] Evaporation rates of structured and non-structured liquid mixtures [J].

Beverley, KJ ;

Clint, JH ;

Fletcher, PDI .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2000, 2 (18) :4173-4177

[6] Self-Assembly of Colloidal Particles from Evaporating Droplets: Role of DLVO Interactions and Proposition of a Phase Diagram [J].

Bhardwaj, Rajneesh ;

Fang, Xiaohua ;

Somasundaran, Ponisseril ;

Attinger, Daniel .

LANGMUIR, 2010, 26 (11) :7833-7842

[7] Shape-Anisotropy Driven Symmetry Transformations in Nanocrystal Superlattice Polymorphs [J].

Bian, Kaifu ;

Choi, Joshua J. ;

Kaushik, Ananth ;

Clancy, Paulette ;

Smilgies, Detlef-M ;

Hanrath, Tobias .

ACS NANO, 2011, 5 (04) :2815-2823

[8] Kinetically driven self assembly of highly ordered nanoparticle monolayers [J].

Bigioni, TP ;

Lin, XM ;

Nguyen, TT ;

Corwin, EI ;

Witten, TA ;

Jaeger, HM .

NATURE MATERIALS, 2006, 5 (04) :265-270

[9] Nanoscale Forces and Their Uses in Self-Assembly [J].

Bishop, Kyle J. M. ;

Wilmer, Christopher E. ;

Soh, Siowling ;

Grzybowski, Bartosz A. .

SMALL, 2009, 5 (14) :1600-1630

[10] Large-Area Ordered Superlattices from Magnetic Wustite/Cobalt Ferrite Core/Shell Nanocrystals by Doctor Blade Casting [J].

Bodnarchuk, Maryna I. ;

Kovalenko, Maksym V. ;

Pichler, Stefan ;

Fritz-Popovski, Gerhard ;

Hesser, Guenter ;

Heiss, Wolfgang .

ACS NANO, 2010, 4 (01) :423-431

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