A low-cost, high-efficiency, new generation material for fog harvesting fumed silica-doped polypropylene

Doped Mesoporous Silica Fibers: A New Laser Material

632 Ó WILEY-VCH Verlag GmbH, D-69469 Weinheim, 1999 0935-9648/99/0806-0632 $ 17.50+.50/0 Adv. Mater. 1999, 11, No. 8 After this the polymer was rigid and could be peeled off carefully from the silicon master. The suspensions were prepared by adding powder to distilled water under constant stirring. The pH was always kept between 4 and 5 by dropwise adding a 2 M solution of hydrochloric acid (Ti...

Investigation of Fumed Silica/Aqueous NaCl Superdielectric Material

A constant current charge/discharge protocol which showed fumed silica filled to the point of incipient wetness with aqueous NaCl solution to have dielectric constants >10⁸ over the full range of dielectric thicknesses of 0.38-3.9 mm and discharge times of 0.25->100 s was studied, making this material another example of a superdielectric. The dielectric constant was impacted by both frequency a...

Next Generation High-Efficiency Low-cost Thin Film Photovoltaics

Our goal is to develop novel growth approaches for producing low cost solar cells that have efficiency comparable to those made from high-cost, single-crystalline materials. Our efforts to date focus on using ion beam assisted deposition (IBAD) to control the grain boundary alignment in polycrystalline silicon thin films. The boundaries between highly aligned grains have smaller defect densitie...

Fumed-Alumina-Derived Nanoporous Alumina as a New Low-k Dielectric Material for Microelectronics Packaging

Nitrogen-doped porous carbon nanosheets as low-cost, high-performance anode material for sodium-ion batteries.

Between the sheets: Sodium-ion batteries are an attractive, low-cost alternative to lithium-ion batteries. Nitrogen-doped porous carbon sheets are prepared by chemical activation of polypyrrole-functionalized graphene sheets. When using the sheets as anode material in sodium-ion batteries, their unique compositional and structural features result in high reversible capacity, good cycling stabil...