On the parameters influencing the deposition of polystyrene colloidal crystals

Yoldi, M.; Arcos, Cristina; Paulke, Bernd-Reiner; Sirera, R.; González-Viñas, Wenceslao; Görnitz, Eckhard

doi:10.1016/j.msec.2007.04.036

Cited by 17 publications

(12 citation statements)

References 38 publications

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“…395,396 Whereas sintering is not a viable route for polymeric particles, the addition of cosolvents can lead to a partial swelling of the particles and thereby avoid crack formation. 397 The resulting crystals are not in a completely dry state, which affects their optical properties and long-term stability.…”

Section: Defects and Cracks In Colloidal Crystalsmentioning

confidence: 99%

Advances in Colloidal Assembly: The Design of Structure and Hierarchy in Two and Three Dimensions

et al. 2015

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Section: Defects and Cracks In Colloidal Crystalsmentioning

confidence: 99%

Advances in Colloidal Assembly: The Design of Structure and Hierarchy in Two and Three Dimensions

et al. 2015

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“…On the other hand, several authors have demonstrated that the carboxyl-rich surface of the microspheres enhanced the formation of hydrogen bonds among the carboxyl group of microspheres improving properties like colloidal stability as well as mechanical properties of the film prepared [13][14][15][16][17][18][19]. The hard polystyrene core and soft shell structure has been demonstrated using TEM with chemical staining since the core and the shell densities are very similar [11,[20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Poly(styrene-acrylates-acrylic acid) Microspheres and Their Chemical Composition towards Colloidal Crystal Films

Ríos-Osuna

Licea‐Claveríe

Paraguay‐Delgado

et al. 2016

International Journal of Polymer Science

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In this paper, polystyrene colloidal microspheres have been prepared using hexyl acrylate (HA), ethylhexyl acrylate (EHA), isooctyl acrylate (IOA), butyl acrylate (BA), or isobutyl acrylate (IBA) as comonomers. Microspheres with diameters from 212 to 332 nm and with a polystyrene content of 65-78% were prepared. The particles prepared in this work do not present the typical coreshell structure; as a consequence, DSC analysis showed that the microspheres exhibited only one . TEM images show that the particles with comonomer content below ∼30% were spherical and regular. Microspheres containing comonomer between 21 to 25% produced the less brittle films showing very iridescent colors. The films prepared from microspheres containing hexyl, ethylhexyl, and isooctyl acrylate as comonomers are firmly attached to the substrate due to their adhesive properties. The large decrease of the fragility observed in these films makes them much more attractive materials in sensing applications.

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“…In a self‐assembled structure, the building blocks are usually linked by weak forces such as van der Walls, electrostatic, hydrogen bonds, hydrophobic, and stacking interactions as well as steric forces . Application of self‐assembly techniques requires highly ordered photonic crystals, such as optical fibers, lasers, photovoltaic cells, and other optoelectronic devices …”

Section: Introductionmentioning

confidence: 99%

Effects of processing parameters on 3D structural ordering and optical properties of inverse opal photonic crystals produced by atomic layer deposition

Campos

Furlan

García

et al. 2019

Int J Ceramic Engine & Sci

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Vertical convective self‐assembly has been extensively used for the preparation of direct photonic crystals, which can be later infiltrated with a more stable material, such as oxide ceramics, by atomic layer deposition. However, the relationship between the self‐assembly parameters of the direct photonic crystals and the optical properties of the inverse opal photonic crystals remains elusive. In this work, the effect of different experimental parameters on the 3D structure and the density of defects of polystyrene direct photonic crystals produced by vertical convective self‐assembly was assessed. Self‐assembly was investigated using deionized water as media with polymer particles’ concentrations up to 2 mg/mL; temperatures of 40, 50, and 80°C; and relative humidity of 45%, 70%, and 90%. The 3D structure of the resultant direct photonic materials was characterized by the combination of scanning electron microscopy and image analysis, and their optical properties were assessed by reflectance measurements. These results were correlated with the performance of oxide‐based inverse opal photonic crystals produced by the controlled infiltration of the former direct photonic crystals by atomic layer deposition (ALD). It was found that the thickness increased with the concentration of polystyrene particles, while the photonic structure ordering is dependent on the synergy between humidity and temperature. Results also showed higher defects population with increasing evaporation temperature and decreasing relative humidity.

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On the parameters influencing the deposition of polystyrene colloidal crystals

Cited by 17 publications

References 38 publications

Advances in Colloidal Assembly: The Design of Structure and Hierarchy in Two and Three Dimensions

Advances in Colloidal Assembly: The Design of Structure and Hierarchy in Two and Three Dimensions

Synthesis of Poly(styrene-acrylates-acrylic acid) Microspheres and Their Chemical Composition towards Colloidal Crystal Films

Effects of processing parameters on 3D structural ordering and optical properties of inverse opal photonic crystals produced by atomic layer deposition

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