electronic surface properties of semiconductor surfaces and interfaces

... inside wall and 3D structures of the inner wall were obtained using MeX software Figures and 10 show an FIB-milled pipette and stereo images Table shows inner surface properties of small b m ... and average surface roughness (Sa) of all pipettes have been measured Figures 3, 4, 5, and show correlations between pulling parameters and Dt and Sa As it can be seen from Figures 3, 4, 5, and ... significantly decreases Dt and Sa The effects of pull and heat are very similar and not as significant as the effect of velocity Delay and pressure are factors to change the taper length of the pipettes...

Ngày tải lên: 21/06/2014, 03:20

... of (c) 0.61, (d) 2.44 and (e) 3.66 Figure 3.5: Effect of [4VP]/[-CH2CF2-] molar feed ratio on the surface [N]/[C] ratio and the surface graft concentration ([-4VP-]/[-CH2CF2- ]surface ratio) of ... with a standard pore diameter of d=0.22 µm 12 Figure 5.1: Schematic illustration of the process of ozone-pretreatment and graft copolymerization of PVDF with inimer BIEA, preparation of “surfaceactive” ... spectra of (a) the Si-COOCH3 and (b) the SiCH2OH; (c) XPS C 1s and N 1s core-level spectra of the Si-Azo surface Figure 6.3: AFM micrographs of the silicon surface: (a) the pristine Si(100) surface; ...

Ngày tải lên: 16/09/2015, 15:54

... lot of people have helped me to further my research and I am grateful to all of them Especially, I would like to sincerely thank my supervisors Prof Ariando and Prof T Venkatesan for educating and ... will ever be indebted to Prof Ariando and Prof T Venkatesan I would like to take this opportunity to thank Prof J M D Coey from Ireland, who has ever been a visiting professor in Nanocore for several ... with the Fermi level of NSTO such that the wave functions of electrons inside the QCB and the conduction band of NSTO can overlap and interact with each other The implications of this mechanism...

Ngày tải lên: 10/09/2015, 09:11

... Electronic and Optoelectronic Properties of Semiconductor Structures provides engineering and physics students and practitioners with complete and coherent coverage of key modern semiconductor ... seven previous textbooks on semiconductor technology and applied physics Electronic and Optoelectronic Properties of Semiconductor Structures Jasprit Singh University of Michigan, Ann Arbor  ... transport and optical properties of semiconductors and their heterostructures; and iv) behavior of electrons in small and disordered structures As much as possible I have attempted to relate semiconductor...

Ngày tải lên: 24/01/2014, 17:34

... interfaces, and the characterization of the geometric and electronic structure of diamond films with STM and AFM This Page Intentionally Left Blank Nanoscale Characterization of Surfaces and Interfaces ... details of the electronic structure of the sample and the tip, so as to understand spatial imaging of localized electronic states at surfaces, including considerations of local inelastic tunneling and ... theoretical understanding of the bulk, surfaces and interfaces have been intensively studied in recent years because of their fundamental and technological importance The surface structure of a single...

Ngày tải lên: 04/06/2014, 14:38

... that the PL of CdSe core and CdSe/ZnS core/shell QDs in the first ns arises from the intrinsic bright ± 1U and ± 1L states with lifetime of about 60 ps and 450 ps, respectively, and from surface states ... times from intrinsic bright states of the fine structure of spherical CdSe QDs [4] into the surface defect states [5], and t3 is comparable with typical lifetime of surface- related emission in CdSe ... our experiments In light of these results we can associate the transitions |1i and |2i to carrier recombination from ± 1U and ± 1L states and the transition |3i to a surface states emission By...

Ngày tải lên: 22/06/2014, 18:20

... release and persistence of organic acids (ligands) capable of mobilizing Fe and Al Consequently, the study of relationships between forest floor properties and the degree of development of albic and ... in morphological and chemical properties of forest floor and mineral soil, and each accumulation of DW was examined for the origin (species) and age of decay The objectives of the present study ... for each sample of albic horizon; t is its thickness (cm) and Vand Care the numerical values of its Munsell value and chroma; and Due to the design of the study, the thickness of the forest floor...

Ngày tải lên: 08/08/2014, 19:21

... lowered afnity of cystatin F for these enzymes Proline in the S2 site is a feature of human sten A and cystatins F, S and SN, all of which are signicantly less potent inhibitors of cathepsin B ... lysosomal localization of cystatin F, its restricted and readily regulated expression [18], selective and not too potent inhibition of cathepsins are all in favor of the active role of cystatin FEBS ... C and K (not shown) The results for cathepsin S were less clear and showed partial colocalization of the two proteins (Fig 3B) As both primary antibodies for cathepsin F and cystatin F were of...

Ngày tải lên: 19/02/2014, 17:20

... (Fig 4A) In the case of the E315Q mutant, an additional faint band was also seen at an Mr of  43 000 This band appeared as a degradation product during freezing and thawing of the protein that ... (GlcNAc)6, and chitin substrates were also determined, based on the formation of (GlcNAc)2 and the initial velocity of the enzyme, at of reaction at 20 °C Kinetic values for the recombinant wild-type and ... Steve C Fry, Institute of Cell and Molecular Biology, University of Edinburgh, Edinburgh, UK, and Dr Albert Schulte, Ruhr University of Bochum, Germany, for critical reading of the manuscript References...

Ngày tải lên: 20/02/2014, 01:20

... results of measurements of the effects of ATP, ADP, AMP and adenosine on the corresponding low pH-induced blue-shift in the absorption maximum of maize PLB, made in the presence and absence of NaF, ... importance of changes in the surface properties of the PLB membrane The obvious candidates for the driving forces in the case of the pH-dependent changes are either changes in the ionization of the ... The main line of evidence for the existence of a PORphosphatase is the observation by Wiktorsson et al [9] of an inhibition, by NaF and ATP, of the loss of the longwavelength form of Chlide following...

Ngày tải lên: 22/02/2014, 04:20

... understanding and will be the focus and repeating theme throughout the text A sound understanding of cardiac physiology begins with basic understanding of cardiac anatomy and of the physiology of ... composed of bundles of myosin strands with each strand having a tail, a hinge and a head region The tail regions bind to each other in the central portion of the filament and the Page of 23 strands ... of this manuscript is to provide a detailed understanding of the heart as a muscular pump and of the interaction between the heart and the vasculature The concepts of contractility, preload and...

Ngày tải lên: 22/02/2014, 09:20

... two di erent surface doses of respectively 5×1011 and 2×1013 cm−2 , ◦ followed by rapid thermal annealing at 950 C for 30 s This leads to two di erent doping levels of roughly 2×1017 and 1019 cm−3 ... has been measured The e ect of lateral and backgate voltages on the wire electrical characteristics are presented and discussed Fabrication process The principle of AFM lithography on a silicon ... than a threshold of −2:7 V [11,12] The ambient humidity is kept constant at a level of 30 – 40% Applying a tip voltage while the tip is scanned over the silicon surface at speed of 0.1– m=s leads...

Ngày tải lên: 16/03/2014, 15:15

... degree of sequence conservation [12,13], and are thought to share a similar functional mechanism Thus, DnaK and mtHsp70 cooperate with the co-chaperones DnaJ and GrpE in bacteria, and with Mdj1p and ... were linear and k+1 and k)1 were derived from the y-intercept and the slope, respectively (Table 1) [31] Comparison of wild-type DnaK and mtHsp70 showed that the binding constants of the latter ... Hsp70–peptide complexes, and the refolding activity which might reflect a destabilization of the PBD Conformational properties of wild-type and chimeric proteins: fluorescence and infrared spectroscopy...

Ngày tải lên: 16/03/2014, 22:20

... The effect of geometrical parameters and material properties of face sheets and core are studied on the face wrinkling of sandwich plates Comparison of the present results with those of plate theories ... conditions of transverse shear stresses at the interfaces as well as the conditions of zero transverse shear stresses on the upper and lower surfaces of the sandwich plate In the case of cross-ply ... tension, mechanism of opening and closing of cracks in concrete under dynamic load, tensile and shear stiffness of cracked concrete, • Strain rate effect of the material properties of masonry, reinforced...

Ngày tải lên: 16/03/2014, 22:20

... Activation and degradation characteristics of this recombinant preparation was documented and compared to those of cationic trypsinogen Furthermore, interactions between the two isoforms were studied and ... saved as TIFF files Quantitation of gel bands was carried out with the IMAGEQUANT 5.2 (Molecular Dynamics) software Rectangles were drawn around each band of interest, and an identical rectangle was ... visible bands of larger peptide fragments, as the bulk of the protein was digested to small peptides In contrast, in the presence of mM Ca2+, the trypsinogen band was converted to trypsin and stable...

Ngày tải lên: 17/03/2014, 03:20

... determination of both thermodynamic and kinetic properties of NR1, and as we have shown for CPR and P450 BM3 (23,24,28) the properties of the flavin binding domains of NR1 are likely to mimic the redox properties ... reduction of substrate (DCPIP or ferricyanide) at appropriate wavelengths (600 nm and 420 nm, respectively) Results are the mean and standard deviation of triplicate assays For the determination of ... Absorption spectra of purified NR1FMN and NR1-FAD/NADPH domains (approx and lM protein, respectively) Fig Schematic overview of the domains generated for this study in the context of full-length NR1...

Ngày tải lên: 23/03/2014, 21:20

... 107 Presentation of the ELDKWA on surface of infected cells The presentation of the inserted epitope ELDKWA on the surface of infected cells was determined by FACS analysis 24 and 48 h.p.i For ... the surface of virions and infected cells [23] To gain further insight into the structural properties of gp64 and to increase the accessibility of peptide insertions to their ligands, we inserted ... to those of wild-type AcMNPV The titre of AcELD274 was  10 times lower and plaques were considerably smaller In conclusion, efficient surface display of desired epitopes on the surface of baculovirus...

Ngày tải lên: 23/03/2014, 21:21

... published onsorption properties of materials of interest, and in view of broad spectrum of goals and viewpoints of the authors of the cited publications and of potential readers of this book, it ... are outof scope ofthis book On the other hand, the surface propertiesof composite materials with external layer at least 10 nm thick are closely related tobulk properties of the coating, and a ... presence of certain complexing and/ or redox agents Kinetics of dissolution of silica is related to surface chargingand depends on pH and ionic strength [l], andso is the solubility of many other...

Ngày tải lên: 04/06/2014, 16:13

... in the middle of a quartz tube and heated to 350°C for between 30 and a few hours under continuous flow of a hydrogen-containing forming gas The optical properties of as-grown and annealed samples ... using standard lock-in detection technique Results and discussion The optical properties of the as-grown and annealed QDs on CHP structure are analyzed against those of the controlled QDs and CHP ... intensity and FWHM (a) PL spectra of sample D [QDs on CHP] subject to 350°C ex situ hydrogen annealing for 0, 30, 60, and 120 (offset for clarity) Changes in (b) integrated intensity and (c) FWHM of...

Ngày tải lên: 21/06/2014, 01:20

... porphyrin nano- and micro-particles made up of J- and H-heteroaggregates to date [26] The photocatalytic and photoelectronic properties of TiO2 sensitized with this type of porphyrin nano- and micro-particles ... dipole of CoTPPS4- and that of H2TAPP4+ in the formation process of porphyrin nanoand micro-particles [33, 34] The Soret and Q bands of sample solution placed for 72 h are not shifted, and the ... is one of the proofs that the pyramids consist of CoTPPS4- and H4TAPP6+ Figure 1c, d shows the images of samples and 3, respectively In Fig 1c, the diameter of the spheres is in the range of 250–1,300...

Ngày tải lên: 22/06/2014, 01:20