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

Vasquez, Yolanda; Kolle, Mathias; Mishchenko, Lidiya; Hatton, Benjamin D.; Aizenberg, Joanna

doi:10.1021/ph400067z

Cited by 52 publications

(63 citation statements)

References 59 publications

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“…135,136 Using evaporative deposition, nanoparticles can also be easily incorporated into the structure ( Figure 4B,i). 61,98 (i) Control of crystal symmetry. The substrate onto which colloidal particles assemble can be pre-structured with a defined hole pattern into which the first layer of the colloidal particles deposits in a process called colloidal epitaxy.…”

Section: (D) Multiple Porositiesmentioning

confidence: 99%

A colloidoscope of colloid-based porous materials and their uses

et al. 2016

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Nature evolved a variety of hierarchical structures that produce sophisticated functions. Inspired by these natural materials, colloidal self-assembly provides a convenient way to produce structures from simple building blocks with a variety of complex functions beyond those found in nature. In particular, colloid-based porous materials (CBPM) can be made from a wide variety of materials. The internal structure of CBPM also has several key attributes, namely porosity on a sub-micrometer length scale, interconnectivity of these pores, and a controllable degree of order. The combination of structure and composition allow CBPM to attain properties important for modern applications such as photonic inks, colorimetric sensors, self-cleaning surfaces, water purification systems, or batteries. This review summarizes recent developments in the field of CBPM, including principles for their design, fabrication, and applications, with a particular focus on structural features and materials' properties that enable these applications. We begin with a short introduction to the wide variety of patterns that can be generated by colloidal self-assembly and templating processes. We then discuss different applications of such structures, focusing on optics, wetting, sensing, catalysis, and electrodes. Different fields of applications require different properties, yet the modularity of the assembly process of CBPM provides a high degree of tunability and tailorability in composition and structure. We examine the significance of properties such as structure, composition, and degree of order on the materials' functions and use, as well as trends in and future directions for the development of CBPM.

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Section: (D) Multiple Porositiesmentioning

confidence: 99%

A colloidoscope of colloid-based porous materials and their uses

et al. 2016

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“…The optical images and plots correspond to three different concentrations of gold nanoparticles added to the colloidal suspension: 0 Np/mL ( 1 ); 1.2 × 10 15 NPs/mL ( 2 ); and 7.2 × 10 15 NPs/mL ( 3 ); ( c ) TEM images correspond to inverse opals assembled with 6.0 × 10 14 NPs/mL (bottom) and 1.2 × 10 15 NPs/mL (top) [17]. …”

Section: Figurementioning

confidence: 99%

Gold Nanoparticles in Photonic Crystals Applications: A Review

Venditti

2017

Materials

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This review concerns the recently emerged class of composite colloidal photonic crystals (PCs), in which gold nanoparticles (AuNPs) are included in the photonic structure. The use of composites allows achieving a strong modification of the optical properties of photonic crystals by involving the light scattering with electronic excitations of the gold component (surface plasmon resonance, SPR) realizing a combination of absorption bands with the diffraction resonances occurring in the body of the photonic crystals. Considering different preparations of composite plasmonic-photonic crystals, based on 3D-PCs in presence of AuNPs, different resonance phenomena determine the optical response of hybrid crystals leading to a broadly tunable functionality of these crystals. Several chemical methods for fabrication of opals and inverse opals are presented together with preparations of composites plasmonic-photonic crystals: the influence of SPR on the optical properties of PCs is also discussed. Main applications of this new class of composite materials are illustrated with the aim to offer the reader an overview of the recent advances in this field.

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“…Thus, inverse opal structures of SiO 2 containing metal NPs having observable LSPR and PBG signals have been reported rarely [20,21]. The methods to include the NPs into inverse opals have been the in situ "doping" or threephase co-assembly methods [20,21]. The co-assembly of templating microspheres and metallic nanoparticles can also be done with a convective assembly approach [22].…”

Section: Introductionmentioning

confidence: 99%