Results 21 to 30 of about 3,300 (132)

Single particle dark-field spectroscopy of spherical dimers with down to sub-10 nm gaps fabricated by the annealing of nano-pillars

Nanophotonics, 2018
In this paper we present a method for the fabrication of plasmonic spherical dimers and oligomers with narrow gaps and tunable distances. High-aspect-ratio nano-pillars are created by the two-step evaporation of gold on structured substrates.
Dickreuter Simon, Kern Dieter P., Fleischer Monika   +2 more
doaj   +1 more source

Replicating Nanostructures on Silicon by Low Energy Ion Beams [PDF]

, 2004
We report on a nanoscale patterning method on Si substrates using self-assembled metal islands and low-energy ion-beam irradiation. The Si nanostructures produced on the Si substrate have a one-to-one correspondence with the self-assembled metal (Ag, Au,
B N Dev, B Satpati, Baranov I, Kingery, Lee W H, Miedema A R, Satpati B, Satpati B Ghatak J Satyam P V Som T Dev B N, Valbusa U, Vescan L   +9 more
core   +4 more sources

A process chain for integrating microfluidic interconnection elements by micro- overmoulding of thermoplastic elastomers [PDF]

, 2010
This paper presents a process chain for in-line integration of microfluidic interconnection elements by a variant of micro-injection moulding (mu IM). A SEBS-based thermoplastic elastomer (TPE) was moulded over polymethylmethacrylate (PMMA) to produce
Alcock, Jeffrey R., Attia, Usama M.
core   +1 more source

Microscale Interface Synthesis of Ni-B Amorphous Nanoparticles from NiSO4 by Sodium Borohydride Reduction in Microreactor

High Temperature Materials and Processes, 2016
Amorphous nanoparticles have attracted a large amount of interest due to their superior catalytic activity and unique selectivity. The Ni-B amorphous nanoparticles were synthesized from aqueous reduction of NiSO4 by sodium borohydride in microscale ...
Xu Lei, Peng Jinhui, Meng Binfang, Li Wei, Liu Bingguo, Luo Huilong   +5 more
doaj   +1 more source

Nanoengineered Curie Temperature in Laterally-Patterned Ferromagnetic Semiconductor Heterostructures

, 2005
We demonstrate the manipulation of the Curie temperature of buried layers of the ferromagnetic semiconductor (Ga,Mn)As using nanolithography to enhance the effect of annealing.
B. L. Sheu, K. F. Eid, M. B. Stone, N. Samarth, O. Maksimov, P. Schiffer, Samarth N.   +6 more
core   +1 more source

Nanolithography and manipulation of graphene using an atomic force microscope [PDF]

, 2008
We use an atomic force microscope (AFM) to manipulate graphene films on a nanoscopic length scale. By means of local anodic oxidation with an AFM we are able to structure isolating trenches into single-layer and few-layer graphene flakes, opening the ...
A.J.M. Giesbers, Bolotin, Ebbesen, F. Freitag, Fuhrer, Geim, Han, Held, Hiura, Hiura, Huard, Iijima, Ishii, J.C. Maan, K.S. Novoselov, Katsnelson, Keyser, Kobayashi, Kroto, Li, Lu, Luna, Lüscher, Molitor, Morozov, Novoselov, Novoselov, Regul, Roy, Roy, Rycerz, S. Neubeck, Schumacher, Stampfer, Trauzettel, U. Zeitler, Wallace, Wendel, Williams   +38 more
core   +3 more sources

Materials processing with tightly focused femtosecond vortex laser beams

, 2010
This letter is the first demonstration of material modification using tightly focused femtosecond laser vortex beams. Double-charge femtosecond vortices were synthesized with the polarization-singularity beam converter described in Ref [1] and then ...
Andrei V. Rode, Ben-Yakar, Cyril Hnatovsky, Gamaly, Iketaki, Ling-Ling, Picón, Shvedov, Tokizane, Vladlen G. Shvedov, Volyar, Wieslaw Krolikowski   +11 more
core   +2 more sources

Nanogaps with very large aspect ratios for electrical measurements

, 2008
For nanoscale electrical characterization and device fabrication it is often desirable to fabricate planar metal electrodes separated by large aspect ratio gaps with interelectrode distances well below 100 nm.
Fursina, A., Lee, S., Natelson, D., Shvets, I. V., Sofin, R. G. S.   +4 more
core   +1 more source

Green Ambiguity Shapes Sustainable Investing

Business Strategy and the Environment, EarlyView.
ABSTRACT Green Exchange‐Traded Funds (ETFs) have experienced strong growth in recent years, reflecting increasing investor attention toward sustainability. However, these funds rely on a wide range of environmental metrics that are often weakly aligned, raising concerns about the meaning of greenness in sustainable investing.
Rita Laura D'Ecclesia, Giacomo Morelli, Kevyn Stefanelli   +2 more
wiley   +1 more source

Modeling of Si-QD Solar Cell in MATLAB [PDF]

, 2013
In this paper, the modeling and analysis of single bi-layer Si-QD solar cell is addressed. The modeling of solar cell is done in MATLAB. The photo currents are calculated for various Si-QD diameters like 2.5, 3, 3.5 and 4 nm and SiO2 barrier layer ...
Bohra, S.S., Panchal, A.K.
core