Integration of indium gallium nitride with nanostructures on silicon substrates for potential photovoltaic applications

... INTEGRATION OF INDIUM GALLIUM NITRIDE WITH NANOSTRUCTURES ON SILICON SUBSTRATES FOR POTENTIAL PHOTOVOLTAIC APPLICATIONS HO JIAN WEI (B.Eng.(1st Hons), NUS) A THESIS SUBMITTED FOR THE DEGREE OF ... Current Status of Photovoltaics (PV) for Solar Energy Harvesting 1.2 Motivation for Integration of InGaN with Nanostructures on Si in PV 1.2.1 Advanta...

Ngày tải lên: 09/09/2015, 08:17

... Alignment of amino acid residues in (A) nigrocin-2- related peptides from O schmackeri skin, (B) nigrocin-2- related peptides from O grahami skin, and (C,D) identical nigrocin-2- related peptides from ... feature of nigrocin-2 peptides is reminiscent of the glycine ⁄ leucine-rich dermaseptin orthologues from the skins of neotropical phyllomedusine leaf frogs,...

Ngày tải lên: 15/03/2014, 10:20

... PROBLEM The primary purpose of this study is to explore the effectiveness of animations and graphics with text on students’ learning Therefore, the study examined whether the animations -with- text ... self explanatory with the aid of animations and text as compared with static graphics and text The animations with text create a cross referent...

Ngày tải lên: 17/03/2014, 12:20

... nanostructures because of the reduction of the semiconductor surface damage This FIB- milling process extends the ability of the technology to fabricate plasmonic and other nanostructures on substrates ... highresolution capabilities of the ion-beam-based techniques Reducing the amorphisation of the substrate results in over sevenfold increase of the o...

Ngày tải lên: 20/06/2014, 22:20

... Solvability of boundary value problems with Riemann-Stieltjes Δ-integral conditions for second-order dynamic equations on time scales at resonance Advances in Difference Equations 2011 2011:42 Submit ... existence of solutions for boundary value problems with integral boundary conditions on time scales Motivated by the statements above...

Ngày tải lên: 20/06/2014, 22:20

... nanostructures realized on silicon using a low thermal budget procedure suitable for IC integration Acknowledgements This work was supported by the CARIPLO foundation under the project QUADIS2 (Contract no ... saturation of non–radiative recombination channels in the barrier active during carrier diffusion processes [27] In conclusion, we presented the PL behavior of higheffi...

Ngày tải lên: 21/06/2014, 17:20

... are the turned, bored and milled dimensions Machinability and Surface Integrity ‘full’ production operational machining, meaning that with some degree of confidence, manufacturing dictates and ... in these doubtful situations, rather than ‘working blindly’ – with no relevant cutting data, to base the applied cutting conditions upon Several of these ‘ranking’ non -machining te...

Ngày tải lên: 21/06/2014, 22:20

... present in a data set into ‘components’ Each ‘component’ is attributed to an identifiable cause, or source of variation; in addition, one ‘component’ represents the variation due to uncontrolled ... meaningful machinability assessment 7.2 Machined Roundness Roundness is a condition of a surface of revolution’ , which can take the form of a: cylinder, cone, or sphere, where all th...

Ngày tải lên: 21/06/2014, 22:20

... magnitude of the output of a system with respect to that of the input – the conditions of operation and measurements must be specified’ (Smith, 1993, et al.) of increasing the frictional contact ... tooling with the greatest possible diameter with the minimum of tool overhang By way of a caution concerning chatter frequency, this normally occurs near the most flexible vi...

Ngày tải lên: 21/06/2014, 22:20

... 160.  Surface texture comprises of: ‘long-’, ‘medium-’ and ‘short-components’, together with the ‘direction of the dominant pattern’ – superimposed upon each other [Courtesy of Taylor Hobson] Machinability ... rotational speed (Vr) oscillation speed (Vo), the length and position of the honing stroke, the honing stick pressure (Vc) The inclination angle of the cross-honing actio...

Ngày tải lên: 21/06/2014, 22:20

... NB  This rate of heat generation only exists within the primary and secondary deformation zones By way of example of how the temperature generation/distribution occurs in orthogonal cutting, ... ‘regression line’ being the equivalent of the ‘least squares line’ , allows data on each axes to be compared – with some degree of confidence.(Wild, et al.,1995) Machinability and...

Ngày tải lên: 21/06/2014, 22:20

... deformation – occurs when high pressures (i.e compression) are exerted on the cutting edge in combination with elevated temperatures Conditions likely to create plastic deformation on the cutting ... only the surface is ‘skimmed’ by a longitudinal turning operation • Notch wear on insert’s trailing edge – occurs by in the main, by adhesion wear, but to a lesser extent, may b...

Ngày tải lên: 21/06/2014, 22:20

... in conjunction with the application of efficient cutting conditions The following simple formula can be utilised to calculate the ROI for a particular: production operation; machine tool; machining ... and Surface Integrity as a result, offer extremely fast process response, in comparison to those of the of the ‘non-rigid type’ – having long measurement paths (i.e found in conve...

Ngày tải lên: 21/06/2014, 22:20

... component, FC = cutting force component, FN = normal force component on the shear plane, FS = shear force component on shear plane, R = resultant tool force component, N = normal force component ... ‘frictional laws’ with the observation that: ‘The coefficient of friction* is substantially independent of the speed of sliding.’ *Coefficient of friction (µ) = F/N Thus, t...

Ngày tải lên: 21/06/2014, 22:20

... taper-section overcomes the limitation of perpendicular sectioning By taking an Machinability and Surface Integrity 363 Figure 186.  The effects of residual stress and deformations of a workpiece by machining ... component The concept of the overall functional performance of a surface and its accompanying sub -surface condition was recognised by Field and Kahles (19...

Ngày tải lên: 21/06/2014, 22:20