Although the electric field distribution is considerably changed by the substrate index, the importance of substrate refractive indices has been overlooked in previous studies. Recently, low-cost, large-area plasmonic sensing platforms have been intensively studied for high-throughput chemical and biological analysis. The aerogel substrate with metallic nanogaps shows great potential for use as an inexpensive, highly sensitive SERS platform to detect environmental and biological target molecules. On the basis of FDTD simulations, we concluded that the electric field was highly amplified in the vicinity of the target analyte owing to a combination of the aerogel’s ultralow refractive index and the high-density metallic nanogaps. We also theoretically investigated the electric field distribution dependence on the structural geometry and substrate indices. The enhancement factor reached 7.9 × 10 7 when molecules were adsorbed on the surface of the 30 nm silver-coated aerogel. We experimentally evaluated the SERS enhancement factor with the use of benzenethiol as a probe molecule. The optimized metallic nanogap structure enabled strong confinement of light inside the gaps, which is a suitable property for SERS effect. Metallic nanogaps were formed on the top surface of the nanoporous silica network by controlling the thickness of the metal layer. Silica aerogels were fabricated by easily scalable sol-gel and supercritical drying processes. Combined with its high internal capacity and superhydrophobicity, aerogel particles are increasingly enabling applications such as organics filtration and sequestration, filled polymer reinforcement, sebum absorption in personal care products, thixotropic rheology modification and more.We investigate the optical properties and surface-enhanced Raman scattering (SERS) characteristics of metal-coated silica aerogels. High performance additive. Aerogel boasts ultra-high surface area.This makes aerogel an ideal choice for applications where light scattering and diffusion is needed, such as in daylighting units for buildings, architectural tensile roofing, antiglare and antireflective matte coatings and plastics, light-emitting diode (LED) diffusors, displays and lighting, and more. Museum-quality daylighting. Aerogel particles are also translucent and effectively disperse light.It is water repellent, but also water vapor open, making it possible to design aerogel-containing insulation materials and systems with moisture management and control. Its porous structure is smaller than the mean free path of air, greatly limiting thermal conductivity and thus greatly enhancing thermal insulation performance. Depending on the grade, aerogel particles range from microns to millimeters in diameter. Best in thermal insulation. Aerogel particles are open, porous, finely structured, lightweight and hydrophobic synthetic amorphous silica.Our innovative, proprietary process successfully produces high quality material while effectively bypassing the high costs associated with traditional aerogel production methods for safe, continuous manufacture of this versatile and high-performing material. We are the only company to develop a commercialized process that allows continuous production of aerogel under ambient conditions. We are the global leader in producing high quality particulate silica aerogel. Personal products including skin and beauty care.Ultra low gloss matte paint coatings for industrial surfaces.Non-woven blanket for architectural membrane roofing.Architectural daylighting panels, glass units and tensile roofing systems.Insulation packs for oil and gas subsea pipelines.Thermal insulation coatings for safe-to-touch surfaces, energy efficiency, prevention of corrosion under insulation (CUI), thermal breaks and condensation control. Insulation boards for internal insulating finishing systems.Interior and exterior insulating plasters for breathable building envelopes and facades.Thermal Management for Electric Vehicles.Our product line enables a wide range of product forms and applications, including: It also serves as a high-performance additive to coatings including insulative coating for electric vehicle applications. Aerogel is emerging as a superior, performance-enabling fire protection material in thermal barriers designed to meet critical safety requirements for electric vehicles. Aerogel, known as the "world’s best insulating solid material," is used to enhance the thermal performance of energy-saving materials and sustainable products for buildings, on-and off-shore industrial infrastructure and consumer products.
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