fabrication of 2d superlattices
Ion beam irradiation induced fabrication of silicon photonics from 2d to 3d
... 5.3 Fabrication of Y-shape splitter 72 5.4 Characterization of Y-shape splitter 75 5.4.1 Characterization of Y-shape splitters with short arms 76 5.4.2 Characterization of Y-shape ... oscillation along the wavelength of the incident light, with waveguide width of ~ 7.5 µm 81 ix List of Figures Fig 18 SEM image of the splitter on top, and schematic of the ion beam irradiation ... Fig 13 SEM images of the first attempt of vertical coupling waveguides (a) over view of the structures, (b) high magnification view of the coupling region, (c) cross section view of the two waveguides...
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Simulation and Fabrication of Piezoelectric mems Inkjet Print head
... print head, one of the most important elements in an ink-jet printing system, is a combination of microfluidics and microfabrication (MEMS) and is used to eject small amounts of fluid on target ... conditions The fabrication process of PIPH required 10 masks (as shown in Fig 4-2) Masks M1-M6 were used for fabrication of actuator-chamber plate and the rest was used for fabrication of microchannel-nozzle ... under an applied voltage of 10V-40 kHz 49 Fig 5-1 Model of InkjetVer3 (3-silicon wafers) 51 Fig 5-2 Masks used for fabrication of InkjetVer3 51 vii List of tables Table 2-1 Fluid...
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Báo cáo "FABRICATION OF HIGH-ASPECT-RATIO MICRO STRUCTURES USING UV-LIGA TECHNOLOGY " docx
... Fundamentals of Microfabrication CRC Press, 1997 Chien-Hung Ho and Wensyang Hsu Experimental Investigation of an Embedded Root Method for Stripping SU-8 photoresist in the UV-LIGA process, Journal of Micromechanics ... thickness of the mold layer of more than 300µm Nickel has been selected for growing the metal comb structure by electroplating The combination of root technique and a right ratio between thicknesses of ... Nguyen Phu Thuy nickel sulfamate electrolyte The value of applied current density was in the range of 1-10ASD Temperature of 52oC and pressure of 4Kg/cm2 would help to make a better interface between...
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Báo cáo khoa học: Use of biomolecular templates for the fabrication of metal nanowires ppt
... formation of ordered metallic assemblies at the nano-scale have involved the strepavidin protein array of a 2D array of biotinylated DNA, followed by metallization of the array [17] Use of the naturally ... application of these wires was recently demonstrated for the fabrication of electrodes for thin lithium-ion batteries [38] The binding of gold to the viruses followed by reduction of the cobalt ... approximate indication of their dimensions The DNA structure is formed by biomolecular assembly of double helix All other structures are formed by self-assembly of the large number of nano building...
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Fabrication of a porous polyimide membrane using a silicon nanowire array as a template
... silicon etching with XeF2 A schematic of a cross sectional view is shown under each SEM image Fig SEM images of porous polyimide membranes with pore density of (a, b) ~ pore/100 μm2, and (c, d) ... be adjusted by simply altering the amount of solution applied About 5–10 μl of polyimide solution was found to be appropriate for a silicon substrate of 0.5 by 0.5 cm Substrates treated with polymer ... solution [10] Finally, the silicon component of nanowires was selectively removed using XeF2 as etchant Etch rate of polyimide is negligible Fig SEM images of porous membranes with various pore sizes;...
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fabrication of free standing anodic titanium
... clumps of nanotubes from the side view (Fig 5(c)) The morphology of these open tube vertical arrays offers an excellent pathway for the J Nanosci Nanotechnol 10, 4259–4265, 2010 Meng et al Fabrication ... desired each other The walls of the nanotubes are very smooth and length, as a function of the anodization time, of titanium straight over their entire length The thickness of the walls oxide nanotube ... image clearly reveals that the entire surface of the ATO layer is covered with a layer of nanowires, which is attributed to the long time split of the tube induced chemical etching in a “bamboo-splitting”...
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fabrication of nanowires of multicomponent oxides review of recent advances
... the preparation of ordered array of multicomponent nanowires The basis of sol –gel processing is the hydrolysis of a solution of precursor molecules to obtain first a suspension of colloidal particles ... a few highlights of vapor phase synthesis A detailed discussion on this topic is not within the scope of this paper The demonstration of growth of single crystalline nanowires of numerous semiconducting ... demonstrated the potential of this technique to grow semiconductor nanowires of many semiconductors A major breakthrough in this field was the fabrication of nanowire superlattices like GaAs/GaP...
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fabrication of nanomaterials using porous alumina templates
... of nanohole self-organization Nielsch et al (2002a) proposed that self-ordering requires a porosity of 10%, independent of the specific anodization conditions They propose that self-ordering of ... sufficient to control the initiation of nanohole formation by nano-indentation The effect of indentation interval on the regularity of nanoholes at a fixed anodic voltage of 40 V is shown in Figure At ... Ordered arrays of nanoholes were formed at 65 and 80 nm intervals Thus, controllability of nanoholes depends on both anodic voltage and indentation interval Figure AFM nanoindentation Nanofabrication...
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novel fabrication of nanoporous alumina membrane microtubes
... a pore density of ~1 × 1010/cm2 in all directions Anodization of the aluminum wire with a diameter of mm also produced the transparent anodic alumina layer on Novel Fabrication of Nanoporous Alumina ... microtubes have the great advantage of the easy tunabilities of the nanopore diameter and the morphology including the dimension In summary, the simple fabrication of the 3D shapecontrolled nanoporous ... direct utilization of the aluminum templates of the specified morphology and dimension The resulting PAA membrane microtubes well preserve, in 3D domains, the unique 2D array of the porous nanochannels...
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one - step fabrication of a polyaniline nanofiber vapor sensor
... type of vapor and sensor used Shown in Fig are the responses of the sensors to chloroform vapor, plotted in terms of the normalized current (Inorm (t), current/current at the beginning of the ... the vapor of interest (i.e., I∞ = Inorm (t) when t = ∞) The results of the fitting to the model are also shown in the curves In the case of chloroform, the I∞ is rather high The results of the fitted ... the presence of chloroform The sensitivity of PANI to chloroform was similar to that previously reported for bulk PANI [19] The response to toluene was greater than that for chloroform Toluene,...
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wet process-based fabrication of wo3 thin film for no2 detection
... films were an irregular packing of square plates of WO3 , 0.5–1 m in width and 0.2–0.5 m in thickness Each square plate was a stack of thin plates (lamellae) of less than 100 nm in thickness ... topotaxy holds well between the crystals of WO3 ·2H2 O and that of WO3 : The basal plane (0 0) of WO3 ·2H2 O is converted into the basal plane (0 2) of WO3 [12] As shown by the cross-sectional ... at a gas flow rate of 100 cm3 /min The concentration of NO2 was varied between 10 and 1000 ppb by diluting a parent NO2 gas (1 ppm in dry air) with dry air When necessary, part of the air was humidified...
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Báo cáo " Research, design and fabrication of a high-power combiner using Wilkinson bridge of L-band " pptx
... VNU Journal of Science, Mathematics - Physics 25 (2009) 185-189 Generally, Wilkinson power divider can have any number of output ports A basic three port Wilkinson power divider of port characteristic ... application in our the next reseach for design and fabrication of a transmitter system for the phase identification code D.T Thuy et al / VNU Journal of Science, Mathematics - Physics 25 (2009) 185-189 ... United State of America, 1998 [2] R Mehran, CAD of Microstrip Filters considering dispersion loss and discontinuity effects, IEEE Trans MTT-27, Mar (1979) 239 [3] R Mehran, A method of analysis...
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fabrication of znscupva nanocomposite electroluminescence devices for flat panel displays
... Combination of polymer and semiconductor nanocrystals allows the fabrication of flexible and lightweight EL devices The incorporation of nanocrystals in polymer is expected to increase the life of the ... promising for the improvement of electroluminescence (EL) devices The effect of reducing the size of nanocrystals /nancmposites is expected to improve the performance of these devices and also their ... Size of nanocrystals is determined from broadening of XRD peaks The absorption spectra of the sample have been studied by Perkin Elemer λ-12 spectrometer UV/VIS spectroscopy is the measurement of...
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atmospheric pressure fabrication of sno2 nanowires for
... Page of 40 Ac ce pt ed M an us cr i Figure Page of 40 Ac ce p te d M an us cr ip t Figure Page of 40 Ac ce p te d M an us cr ip t Fig Page of 40 Ac ce p te d M an us cr ip t Figure Page of 40 ... detail ce p Control of SnO2-nanowire growth is also based on the two-step fabrication technology In case of our fabrication procedure the nanowires grow only in the regions of the nanocrystalline ... our fabrication procedure might be the te technology of choice for the controlled fabrication of SnO2-nanowires on a wafer scale TEM-analysis has revealed the single crystalline character of SnO2-nanowires...
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excimer laser fabrication of polymer microfluidic devices
... bonding of glass and polymer, and IR laser bonding can be used for microbonding on local areas of MEMS devices A diffuser micropump was fabricated as a demonstration of laser fabrication of polymer ... photograph of an excimer laser machined microchannel in PET the use of a mask and ͑2͒ batch production is possible with an array of the same patterns on the mask FIG ͑a͒ Fluidic channel of 20 m ... dimension of 20ϫ40 m, a square shape of 20ϫ20 m, or a circular shape with a diameter of 20– 60 m The computer controlled stages follow predesigned paths to produce various types of patterns...
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laser based fabrication of polymer micropump
... deflection of the diaphragm as a function of frequency J Microlith., Microfab., Microsyst., Vol No 1, January 2004 155 Kim and Xu: Laser-based fabrication of polymer micropump Fig 13 A 3-D view of the ... Microfab., Microsyst., Vol No 1, January 2004 153 Kim and Xu: Laser-based fabrication of polymer micropump Fig Schematic of diffusers and the chamber (not to scale) The width at the neck of the ... modeling software GAMBIT provided with Fig Experimental setup for measuring the deflection of the diaphragm Kim and Xu: Laser-based fabrication of polymer micropump Fig Actual deflection of the diaphragm...
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fabrication of microstructures in photoetchable
... the University of California, Los Angeles Xianfan Xu is an associate professor at the School of Mechanical Engineering and the director of the Center for Laser Microfabrication of Purdue University ... molecules In this way, instead of absorbing a single photon of Kim, Berberoglu, and Xu: Fabrication of microstructures Fig Crystallization depth as a function of the number of laser pulses (ᮀ: 0.33 ... structuring of Foturan, a U-shaped channel was deJ Microlith., Microfab., Microsyst., Vol No 3, July 2004 483 Kim, Berberoglu, and Xu: Fabrication of microstructures Fig 14 (a) Design of the U-shaped...
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laser based fabrication of polymer micropump
... deflection of the diaphragm as a function of frequency J Microlith., Microfab., Microsyst., Vol No 1, January 2004 155 Kim and Xu: Laser-based fabrication of polymer micropump Fig 13 A 3-D view of the ... Microfab., Microsyst., Vol No 1, January 2004 153 Kim and Xu: Laser-based fabrication of polymer micropump Fig Schematic of diffusers and the chamber (not to scale) The width at the neck of the ... modeling software GAMBIT provided with Fig Experimental setup for measuring the deflection of the diaphragm Kim and Xu: Laser-based fabrication of polymer micropump Fig Actual deflection of the diaphragm...
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RESEARCH, DESIGN AND FABRICATION OF DIGITAL INFORMATION TRANSIMITER WORKING IN THE VHF BAND
... supervisor professor Bach Gia Duong for his continuous support of dissertation, for his motivation, enthusiasm and immense knowledge His guidance has been of great value for me in all the time of researching ... modulation (PM).A VCO may also be part of phase-locked loop *The basic parameter of oscillator + Resonant frequency + The amplitude of the output voltage + The stability of output frequency +Output power ... slope-voltage output of the syllabic filter is the modulating input to the PAM The step-function response of the syllabic filter is related to the syllabic rate of speech, is independent of the sampling...
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Novel methods (sonochemistry, microwave dielectric heating, sonoelectrochemistry and RAPET for the fabrication of nanomaterials and their applications
... RAPET of silanes is yielding the smallest reported SiC particles having the highest surface area The RAPET of empty Coca Cola bottles yields micron size carbon spheres with a tensile strength of...
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