Breath figures: Self-organizing masks for the fabrication of photonic crystals and dichroic filters

Haupt, Michael; Miller, S.; Sauer, R.; Thonke, Klaus; Mourran, Ahmed; Moeller, Martin

doi:10.1063/1.1778219

Cited by 56 publications

(44 citation statements)

References 29 publications

(13 reference statements)

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“…The other possible mechanism could be analogous to the widely observed breath figure (BF) formation on drop-cast polymer films. [62][63][64][65][66][67][68][69][70][71][72] In earlier publications, 41,42 we proposed the possibility that water condensation onto the PEO-based block copolymers leads to PEO domain ordering. After solvent annealing, the solvent evaporation causes the cooling of the film surface.…”

Section: Discussionmentioning

confidence: 99%

Square Packing and Structural Arrangement of ABC Triblock Copolymer Spheres in Thin Films

et al. 2008

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Nanoporous thin films were prepared from poly(ethylene oxide)-b-poly(methyl methacrylate)-bpolystyrene (PEO-b-PMMA-b-PS) ABC triblock copolymer by solvent annealing under high relative humidity followed by UV degradation and acid washing. Ordered half-spheres at the surface that template ordering of spheres below the surface in thin films were formed as a result of the interaction between the hydrophilic PEO segments and water vapor during processing. The spherical block copolymer domains exhibit complex packing behavior on the surface and in the interior. A half-sphere "monolayer" and a half-sphere plus whole sphere "bilayer" were formed in thin films with thicknesses of 43 and 71 nm, respectively, and have hexagonal lattice symmetry. For half-sphere plus two whole sphere "trilayers" with a nominal thickness of 117 nm, coexistence of regions of hexagonal and square packing was observed by transmission electron microscopy, scanning force microscopy, scanning electron microscopy, and grazing-incidence small-angle X-ray scattering. Square packing was consistent with a surface-truncated unit cell of a body-centered cubic lattice with the (100) plane parallel to the surface.

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Section: Discussionmentioning

confidence: 99%

Square Packing and Structural Arrangement of ABC Triblock Copolymer Spheres in Thin Films

et al. 2008

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“…In fact, BF are obtained by the condensation of water droplets onto the surface of polymer solutions; these droplets, under suitable conditions, self-assemble in an ordered array, leaving a regular pattern of holes (synonymously also the term "pores" is used) on the surface of the polymer films after solvent and water evaporation. Various applications of such patterned surfaces in different fields have been already reported, ranging from membranes [19] to antireflection coatings [20][21][22], ultrahydrophobic surfaces [23], electronics [24,25], photonics [20,25] and cell culture media [10,12,[26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Design of surface properties of PET films: Effect of fluorinated block copolymers

Pilati

Montecchi

Fabbri

et al. 2007

Journal of Colloid and Interface Science

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“…dew deposition on a spider net or on a leaf. They can also be exploited for technological applications: water collection from dew harvesting [2][3][4], biological sterilization [5], manufacturing of surface structures and patterns for nano-technologies [6][7][8][9], fabrication of efficient heat-exchangers and cooling devices [10][11][12]. For such applications, understanding and controlling the droplets formation, growth and coalescence is crucial.…”

Section: Introductionmentioning

confidence: 99%

Impact of microphysics on the growth of one-dimensional breath figures

Stricker

Vollmer

2015

Phys. Rev. E

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Droplet patterns condensing on solid substrates (breath figures) tend to evolve into a self-similar regime, characterized by a bimodal droplet size distribution. The distributions comprise a bell-shaped peak of monodisperse large droplets and a broad range of smaller droplets. The size distribution of the latter follows a scaling law characterized by a nontrivial polydispersity exponent. We present here a numerical model for three-dimensional droplets on a one-dimensional substrate (fiber) that accounts for droplet nucleation, growth, and merging. The polydispersity exponent retrieved using this model is not universal. Rather it depends on the microscopic details of droplet nucleation and merging. In addition, its values consistently differ from the theoretical prediction by Blackman and Brochard [Phys. Rev. Lett. 84, 4409 (2000)]. Possible causes of this discrepancy are pointed out.

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Breath figures: Self-organizing masks for the fabrication of photonic crystals and dichroic filters

Abstract: Articles you may be interested inMetamaterial composite bandpass filter with an ultra-broadband rejection bandwidth of up to 240 terahertz Appl. Phys. Lett.Fabrication of photonic crystal waveguides composed of a square lattice of dielectric rods

Cited by 56 publications

References 29 publications

Square Packing and Structural Arrangement of ABC Triblock Copolymer Spheres in Thin Films

Square Packing and Structural Arrangement of ABC Triblock Copolymer Spheres in Thin Films

Design of surface properties of PET films: Effect of fluorinated block copolymers

Impact of microphysics on the growth of one-dimensional breath figures

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