Electrochemical Etching
Optimization of Electrochemical Etching Parameters in FIM/STM Tungsten Nanotip Fabrication
... Field Ion Microscopy (FIM) and Scanning Tunneling Microscopy (STM) have found a wide application in nanotechnology. These microscopes use a metallic nanotip for image acquisition. Resolution of FIM and STM images depends ...
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Enhancement of Structural and Optical Properties of Porous In0.27Ga0.73N Thin Film Synthesized Using Electrochemical Etching Technique
... Porous III-nitride compounds are considered as promising materials for optoelectronics [2] and chemical and biochemical sensors [3] because of their unique optical and electronic properties compared with bulk materials ...
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Chemical Composition of Nanoporous Layer Formed by Electrochemical Etching of p Type GaAs
... after electrochemical etching, the porous layer showed a major decrease in the CL intensity and a change in chemical composition and in the crystalline ...
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Investigations Into the Electrochemical Etching Process of P Type Silicon Using Ethanol Surfactant Solutions
... The etching of Si leads to micro-machined products which in turn allows the integration of micro-mechanisms in single devices with potential applications in micro-robotic systems ...[1]. Electrochemical ...
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Silicon based photonic crystals fabricated using proton beam writing combined with electrochemical etching method
... subsequent electrochemical etching, the etching time and current dens- ity for different resistivity wafers were carefully controlled to completely undercut the end-of-range regions of 250-keV ...
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Liquid Membrane Electrochemical Etching: Twin Nano-Tips Fabrication for Micromachining
... in electrochemical micromachining, allowing high machining accuracy and minimum machining ...membrane electrochemical etching processes twin nano-electrodes with parabolic upper and conical lower ...
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Alternative-Current Electrochemical Etching of Uniform Porous Silicon for Photodetector Applications
... under electrochemical etching of doped silicon wafer in (HF/Ethanol) solution, the metal on the back of doped Si wafer for using as ohmic contact and controlled current density leads to fabricate macro or ...
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Fabrication of p-Type Nano-porous Silicon Prepared by Electrochemical Etching Technique in HF-Ethanol and HF-Ethanol-H2O Solutions
... Electrochemical etch was carried out at different values of applied current density ranging from 10 mA/Cm 2 to 50 mA/Cm 2 . The etch durations was performed at different times ranging from 5 mins to 30 mins. The ...
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Macroporous Silicon Formation on Low-resistivity p-type c-Si Substrate by Metal-catalyzed Electrochemical Etching
... Macroporous silicon with large aperture size was fabricated on p-type c-Si substrate with the resistivity of about 0.1-3 ohm·cm by metal–catalyzed electrochemical etching (MCECE). Firstly, Ag nanoparticle ...
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Preparation of Porous Silicon by Electrochemical Etching Methods and its Morphological and Optical Properties
... Porous silicon (PS) has been widely used in solar cells and photodetectors because of its very low reflectance. However, its properties are greatly influenced by its morphological characteristics. In this work, PS ...
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Folic Acid Delivery Device based on Porous Silicon Nanoparticles Synthesized by Electrochemical Etching
... by electrochemical etching of silicon wafer in an electrochemical ...and etching time on pore size, porosity, and thickness of the pSi nanoparticles and its application as a carrier for ...
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Morphological and nanostructural features of porous silicon prepared by electrochemical etching
... between sample 1 and sample 4 might come from the fact that the doping concentration of sample 1 is ap- proximately 10 4 times higher than that of sample 4. As a result, sample 1 has a larger concentration of doping- ...
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Effect Of Etching Time On Electrical Properties For Porous Silicon By Photo Electrochemical Etching
... of etching time, due to the fact that when etching time increases the porous layer and the porosity increase so that the pore walls act as carriers trapped and cause high resistivity which in turn cases ...
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Fabrication of uniform 4H SiC mesopores by pulsed electrochemical etching
... Silicon carbide (SiC) is a promising semiconductor for high-temperature, high-power, and high-frequency electronic devices, due to its wide bandgap, high breakdown electric field, and high electron saturation velocity ...
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Electrical and Photoelectrical Properties of Reduced Graphene Oxide—Porous Silicon Nanostructures
... the etching time was 5–10 ...of electrochemical etching ...After electrochemical processing, the working surface of sample was washed with distilled water and dried in ...
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Effect of Preparation Parameters on Physical, Thermal and Optical Properties of n-type Porous Silicon
... by electrochemical etching method, under varying current density and etching ...as etching time, current density or volume ratio of electrolyte separately, this paper investigated the effects ...
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Effect of Graphene Oxide on the Properties of Porous Silicon
... The hybrid PS – GO structures were created by the method of electrochemical etching of silicon wafer and deposition on the PS layer of GO prepared from water dispersion. It was found that GO formed a film ...
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Gold etching for microfabrication
... of electrochemical etching has also been explored, and for applications such as gold seed layer removal, it has some advantages over con- ventional wet ...
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pH responsive drug delivery system based on hollow silicon dioxide micropillars coated with polyelectrolyte multilayers
... con produced by electrochemical etching in p-type silicon wafers following the process described elsewhere [10-12]. In order to obtain regular pore arrays, the Si wafer was pre-patterned with a 3-μm lattice ...
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Few Layer Graphene Sheet Passivated Porous Silicon Toward Excellent Electrochemical Double Layer Supercapacitor Electrode
... from electrochemical etching of porous silicon to the Ni-assisted CVD process for graphene coating and pore reorganization ...the electrochemical reaction of HF with Si, and further growth only ...
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