Structural and optical characterization of 3D binary colloidal crystal and inverse opal films prepared by direct co-deposition

Wang, Jianjun; Ahl, Stefanie; Li, Qin; Kreiter, Maximilian; Neumann, Thomas; Burkert, Klaus; Knoll, Wolfgang; Jonas, Ulrich

doi:10.1039/b715329e

Cited by 80 publications

(107 citation statements)

References 53 publications

(48 reference statements)

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“…The incorporation of metal nanoparticles into inverse opals has recently attracted particular attention in the literature. 8,[10][11][12][13][14][15][16][17][18][19][20][21] The high surface area and photonic properties of inverse opals coupled with the plasmonic 22,23 or catalytic 24 properties of metal nanoparticles greatly expand the possible applications of these materials as catalysts, 8 sensors, 14,15 photonic structures, [15][16][17][18] and in Surface-Enhanced Raman Spectroscopy (SERS). 20 In most prior investigations, however, inverse opal structures were fabricated by multi-step processes involving assembly of colloidal crystals as sacrificial templates, then infiltrating the structure with a matrix material, such as an appropriate hydrolyzable alkoxide solgel precursor, allowing gelation to take place, and, subsequently, removing the colloidal template by dissolution or thermal decomposition.…”

Section: Introductionmentioning

confidence: 99%

Three-Phase Co-assembly: In Situ Incorporation of Nanoparticles into Tunable, Highly Ordered, Porous Silica Films

et al. 2013

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We present a reproducible, one-pot colloidal co-assembly approach that results in large-scale, highly-ordered porous silica films with embedded, uniformly-distributed, accessible gold nanoparticles. The unique coloration of these inverse opal films combines iridescence with plasmonic effects. The coupled optical properties are easily tunable either by changing the concentration of added nanoparticles to the solution before assembly or by localized growth of the embedded Au nanoparticles upon exposure to tetrachloroauric acid solution, after colloidal template removal. The presence of the selectively absorbing particles furthermore enhances the hue and saturation of the inverse opals color by suppressing incoherent diffuse scattering. The composition and optical properties of these films are demonstrated to be locally tunable using selective functionalization of the doped opals.

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Section: Introductionmentioning

confidence: 99%

Three-Phase Co-assembly: In Situ Incorporation of Nanoparticles into Tunable, Highly Ordered, Porous Silica Films

et al. 2013

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“…1B). Previously, colloidal coassembly of structures has been achieved with binary mixtures of colloids (34)(35)(36)(37)(38), supramolecular mesostructures (39), and with a combination of supramolecular and colloidal self-assembly (40). Also, sol-gel silicates have been added as a temporary "glue" for SiO 2 colloids (41).…”

mentioning

confidence: 99%

Assembly of large-area, highly ordered, crack-free inverse opal films

Hatton

Mishchenko

Davis

et al. 2010

Proc. Natl. Acad. Sci. U.S.A.

498

578

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Whereas considerable interest exists in self-assembly of well-ordered, porous “inverse opal” structures for optical, electronic, and (bio)chemical applications, uncontrolled defect formation has limited the scale-up and practicality of such approaches. Here we demonstrate a new method for assembling highly ordered, crack-free inverse opal films over a centimeter scale. Multilayered composite colloidal crystal films have been generated via evaporative deposition of polymeric colloidal spheres suspended within a hydrolyzed silicate sol-gel precursor solution. The coassembly of a sacrificial colloidal template with a matrix material avoids the need for liquid infiltration into the preassembled colloidal crystal and minimizes the associated cracking and inhomogeneities of the resulting inverse opal films. We discuss the underlying mechanisms that may account for the formation of large-area defect-free films, their unique preferential growth along the 〈110〉 direction and unusual fracture behavior. We demonstrate that this coassembly approach allows the fabrication of hierarchical structures not achievable by conventional methods, such as multilayered films and deposition onto patterned or curved surfaces. These robust SiO 2 inverse opals can be transformed into various materials that retain the morphology and order of the original films, as exemplified by the reactive conversion into Si or TiO 2 replicas. We show that colloidal coassembly is available for a range of organometallic sol-gel and polymer matrix precursors, and represents a simple, low-cost, scalable method for generating high-quality, chemically tailorable inverse opal films for a variety of applications.

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“…(b) An illustration of hydrophilic polymers physisorbed on the carbon nanotube surface: low molecular weight polymer with high grafting density (Σ) (left) and high molecular weight polymer with a lower Σ (right). [12,13] PVP = poly(vinyl pyrrolidone); PVA = poly(vinyl alcohol); SDS = sodium dodecyl sulfate; GA = gum arabic; TX = Triton X-100 (surfactant) Polymer colloids or hybrids Tan delta/E' a b Figure 14 …”

Section: Discussionmentioning

confidence: 99%

“…Highly dilute dispersions are used to create isolated particles. The three most common deposition methods for polymer colloids are horizontal deposition [11], vertical deposition [12][13][14] and spin-casting [15][16][17].…”

Section: Colloidal Particle Assembly Methodsmentioning

confidence: 99%

“…[125] The hybrid particles are most often packed on a face-centered cubic lattice [12,52], but body-centered cubic, body-centered orthorhombic, space-filling tetragonal, bodycentered tetragonal lattices are also possible. [32] After the deposition process, an ordered structure can be found, with inorganic particles (e.g.…”

Section: Assembly Of Core-shell Hybrid or Armored Particles To Creatementioning

confidence: 99%

See 1 more Smart Citation

Design and fabrication of colloidal polymer nanocomposites

Wang¹,

Keddie²

2009

Advances in Colloid and Interface Science

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Structural and optical characterization of 3D binary colloidal crystal and inverse opal films prepared by direct co-deposition

Cited by 80 publications

References 53 publications

Three-Phase Co-assembly: In Situ Incorporation of Nanoparticles into Tunable, Highly Ordered, Porous Silica Films

Three-Phase Co-assembly: In Situ Incorporation of Nanoparticles into Tunable, Highly Ordered, Porous Silica Films

Assembly of large-area, highly ordered, crack-free inverse opal films

Design and fabrication of colloidal polymer nanocomposites

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