نتایج جستجو برای: nano layer
تعداد نتایج: 330388 فیلتر نتایج به سال:
Most gas barrier films produce cracks that lead to a significant loss of integrity when strain is applied. In order fabricate stretchable with low water permeability and high endurance after stretching, we used polydiallydimethylammonium (PDDA) mixed graphene oxide (GO) poly (vinyl alcohol) (PVA) montmorillonite (MMT). These were manufactured by layer-by-layer assembly on an Ecoflex/polydimethy...
The fabrication and control of the conductive surface and interface on insulating SrTiO3 bulk provide a pathway for oxide electronics. The controllable manipulation of local doping concentration in semiconductors is an important step for nano-electronics. Here we show that conductive patterns can be written on bare SrTiO3 surface by controllable doping in nanoscale using the mechanical interact...
Barrier layer material deposited on stainless steel substrate has been under investigation. These layers are part of a film-Si module, presently under development at ECN. Low temperature (< 250°C) processing is required in order to avoid impurity diffusion from the stainless steel foil. Novel materials based on nano particles combined with organic/ inorganic polymers and SiOx precipitated from ...
Single layer graphene nano-gaps are fabricated by applying the method of feedback-controlled electroburning to notched ribbon devices, which are plasma etched from CVD grown graphene that is wet-transferred onto pre-patterned metal electrodes. Electrical and structural characterizations show that nanometer size gaps form at the center of the notch. We have processed a total number of 1079 devic...
A nano-multiplication-region avalanche photodiode (NAPD) featuring confinement of a multiplication region and a charging region in a nano-pillar was proposed for realization of novel near-constant-gain mode multiplication, low dark count rate, low afterpulsing and high avalanche initiation probability. Process and device simulations showed that near-constant-gain mode multiplication can be real...
Nano-hydroxyapatite and its modification, hydroxyapatite with the excess of phosphorus (P-HAP) and hydroxyapatite with the carbon ions built into the structure (C-HAP), were prepared by the wet method. They were studied by means of XRD, accelerated surface area and porosimetry (ASAP), and SEM. The size of crystallites computed using the Scherrer method was nano-hydroxyapatite (HAP) = 20 nm; P-H...
Nanonetworks will enable advanced applications of nanotechnology in the biomedical, industrial, environmental and military fields, by allowing integrated nano-devices to communicate and to share information. Due to the expectedly very high density of nanodevices in nanonetworks, novel Medium Access Control (MAC) protocols are needed to regulate the access to the channel and to coordinate concur...
This paper discuss about a novel technique of developing a nano-structured polypyrrole biosensor for measurement of very low concentrations of hydrogen peroxide in liquid media. The proposed fabrication method is very effective in growing a nano-structured conducting polymer layer on a planar conducting substrate. In addition enzyme loading was done under a high electric field of 1000V/m. The d...
In this work we study the reflection of circularly polarised light from a nano-structured biological material found in the exocuticle of scarabus beetles. This material is made of a stack of ultra-thin (~5 nm) uniaxial layers arranged in a left-handed helicoidal stack, which resonantly reflects circularly polarized light. A chirp in the layer thickness combined with a finite absorption coeffici...
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