Colloidal templating for producing hollow ZnO shells: Fabrication, growth and electrical properties

Moon, Jaehyun; Park, Jin‐Ah; Lee, Su‐Jae; Zyung, Taehyoung

doi:10.1016/j.tsf.2009.01.121

Cited by 6 publications

(5 citation statements)

References 26 publications

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“…As one alternative to infiltration, a single colloid layer can serve as a template by masking to block part of a surface during a vapour phase deposition process, such as sputtering or thermal evaporation. Another avenue is to use the entire sphere as a template to produce a series of porous, interconnected shells 56 .…”

Section: Spin Coated Colloids As Templatesmentioning

confidence: 99%

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Dynamics, crystallization and structures in colloid spin coating

et al. 2013

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Spin coating is an out-of-equilibrium technique for producing polymer films and colloidal crystals quickly and reproducibly. In this review, we present an overview of theoretical and experimental studies of the spin coating of colloidal suspensions. The dynamics of the spin coating process is discussed first, and we present insights from both theory and experiment. A key difference between spin coating with polymer solutions and with monodisperse colloidal suspensions is the emergence of long range (centimeter scale) orientational correlations in the latter. We discuss experiments in different physical regimes that shed light on the many unusual partially-ordered structures that have long-range orientational order, but no long-range translational order. The nature of these structures can be tailored by adding electric or magnetic fields during the spin coating procedure. These partially-ordered structures can be considered as model systems for studying the fundamentals of poorly crystalline and defect-rich solids, and they can also serve as templates for patterned and/or porous optical and magnetic materials.

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Section: Spin Coated Colloids As Templatesmentioning

confidence: 99%

“…Another avenue is to use the entire sphere as a template to produce a series of porous, interconnected shells. 56 5.2.1 Optical applications. The complex shapes that appear in templates prepared by inltration have been targeted as substrates for surface enhanced Raman spectroscopy (SERS).…”

Section: Spin Coated Colloids As Templatesmentioning

confidence: 99%

Dynamics, crystallization and structures in colloid spin coating

et al. 2013

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“…Several methods were reported in literature to develop nanostructured ZnO on different supports: deposition from gas phase by chemical vapor transport and condensation, sol–gel, spray pyrolysis, metal organic chemical vapor deposition, pulsed laser deposition, low temperature chemical deposition etc. In comparison with these techniques, electroless deposition of ZnO is an easier, low‐cost and scalable method which was successfully employed on planar and non‐planar substrates as well …”

Section: Introductionmentioning

confidence: 99%

Synthetic fabrics coated with zinc oxide nanoparticles by electroless deposition: Structural characterization and wetting properties

Frunză

Preda

Matei

et al. 2013

J Polym Sci B Polym Phys

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Electroless deposition was successfully applied in developing crystalline particles of zinc oxide onto polyester textile materials; this deposition is here presented in comparison with other materials made from poly(lactic acid), polyamide or hemp. Structural and spectroscopic characterization of the raw and deposited samples has been performed. The structure of zinc oxide particles was that of wurtzite type as indicated by X‐ray diffraction (XRD) and scanning electron microscopy (SEM). Crystallites were 20–500 nm in diameter and up to 1 µm in length. The grown particles cover the fibers not only on the fabric surface but in the textile depth. Contact angle measurement by the sessile drop method was used to study the wettability behavior of the investigated composite systems. The hierarchical roughness structure generates superhydrophobic properties onto polyester fabrics, for which water contact angles exceed 150°. The other functionalized samples also become more hydrophobic after deposition. Cassie‐Baxter model was found suitable to describe the behavior, though the fraction of surface occupied by the water–solid interface is high enough. The electroless deposition technique applied previously for cotton fabrics was once more proven to be highly reproducible, easy scalable, and cheap, allowing a wide range of applications. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2013, 51, 1427–1437

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“…Double shell hollow spheres were prepared by encapsulating the polymeric hollow spheres with a TiO 2 shell [9]. By using a pulsed laser deposition method, hollow ZnO spheres have been prepared after annealing the depositions [10]. All of these experiments employed an additional chemical and heat treatment.…”

Section: Introductionmentioning

confidence: 99%

Single‐Crystal MgO Hollow Nanospheres Formed in RF Impulse Discharge Plasmas

Iizuka

Muraoka

2012

Journal of Nanomaterials

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Spherical MgO nanoparticles with a hollow inside, that is, MgO hollow nanospheres, were created in Ar/O2plasma produced by radio frequency (RF) impulse discharge using a Mg rod electrode. The hollow nanospheres were found on the SiO2plates placed near the powered Mg electrode. The electron refraction pattern showed that each nanosphere was made of a single crystal of MgO. Since the shape was spherical, these nanoparticles seemed to be created during the levitation in the plasma without touching any walls. The formation mechanism with a quasiliquid cooling model was also discussed.

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Colloidal templating for producing hollow ZnO shells: Fabrication, growth and electrical properties

Cited by 6 publications

References 26 publications

Dynamics, crystallization and structures in colloid spin coating

Dynamics, crystallization and structures in colloid spin coating

Synthetic fabrics coated with zinc oxide nanoparticles by electroless deposition: Structural characterization and wetting properties

Single‐Crystal MgO Hollow Nanospheres Formed in RF Impulse Discharge Plasmas

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