02 structure morphology and optical properties of the compact vertically aligned zno nanorod thin films by the solution growth technique
Báo cáo hóa học: " Characterization and Optical Properties of the Single Crystalline SnS Nanowire Arrays" pot
... containing 30 mM SnCl2 and 100 mM Na2S2O3 was used The pH value of the solution was around 1.8 before deposition The temperature of the solution was kept at 10 °C The potential applied to the cathode was ... corresponding to the value of (101) planes of the orthorhombic SnS nanowires Energy dispersive spectrometer (EDS) analysis reveals that the product is composed of stannum and sulfur, and the ratio of the ... that the SnS nanowires have high absorption in the range of ultraviolet, and the absorption coefficient is above the 70% The absorption reduces rapidly with the increase in the wavelength, and the...
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fabrication and optical properties of ordered sea urchin-like zno
... difference of cell configurations and the quality of the dye However, in the same condition, the conversion efficiency of sea urchin-like ZnO nanostructures is superior to that of ZnO nanorod arrays ... 2a and b displays the low magnification and high magnification SEM images of the sea urchin-like ZnO nanostructures, respectively The intact morphology of an individual sea urchinlike ZnO nanostructure ... which confirm the well-crystallized particles of prepared ZnO Fig 1b shows the UV–visible optical absorption characteristics of the sea urchin-like ZnO Excitonic absorption peak of the ZnO sample...
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Effects of simultaneous doping with boron and phosphorous on the structural, electronic and optical properties of silicon nanostructures
... approaching asymptotically the value of the band-gap of the undoped Si-nw This is another indication of how doping can modify the electronic and optical properties of the Si nanostructures Conclusions ... for the eye The dashed line corresponds to the band-gap for the undoped Si-nw Fig 11 shows how the FE for the B and P codoped Si-nw changes as function of the position of the dopants within the ... how the FE and the electronic properties of the Si-nc are influenced by the insertion of more and more impurities We call this insertion of several impurities multidoping Fig shows how the FE of...
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Báo cáo khoa học: H NMR study of the molecular structure and magnetic properties of the active site for the cyanomet complex of O2-avid hemoglobin from the trematode Paramphistomum epiclitum pdf
... away from the heme normal (z axis), a is the angle between the projection of the tilt of the z axis on the xÂ, y plane (dened direction of tilt of z and the x axis), and j % a + c denes the location ... The two structures of WT metHb and rWT metHbH2O, exhibit signicant differences in the interaction of the FG loop with the heme and in the position of the B-helix, with Tyr32(B10) closer to the ... supported by the relaxation properties of the CeHs signal (see above) The hydroxyl proton position is not directly determined in the crystal structure, but can be inferred by the position of other...
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Báo cáo toán học: " The structural and optical properties of GaSb/InGaAs type- quantum dots grown on InP (100) substrate" ppt
... character of type-II heterostructures The other supporting evidence of the type-II luminescence is the linear dependence of the PL peak energies over the third root of the excitation density [20] The ... independent of the excitation power which is a typical feature of the type-I band transition Therefore, the interband transition of the GaSb QD would be the only proper origin of the high-energy ... with the 2DEG, electrons will still be blocked by the GaSb barrier and will not enter the QDs Therefore, this structure will prolong the lifetime of the holes So, the QD-FET based on the above band...
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Báo cáo hóa học: " Effects of silver impurity on the structural, electrical, and optical properties of ZnO nanowires" doc
... Page of (c) EDS (b) (103) ZnO NW nm Figure TEM images of 3SZO NW (a) The location and the size of the Au catalyst, the present of Au catalyst, is demonstrated the VLS method (b) The HR-TEM and ... SZO NWs, and demonstrate that the doping control of ZnO NWs is possible by the concentration control of Ag wt.% in targets To understand the origin of the chemical bonding, binding energy of Ag ... stress because the chemical bonding distance of Ag-O is longer than that of Zn-O [35,36] In the case of 3SZO and 5SZO NWs, the surface of the SZO NWs is crumpled because of the stress by doping effect...
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Báo cáo hóa học: " Effect of growth temperature on the morphology and phonon properties of InAs nanowires on Si substrates" doc
... image of the nanowire (e) High-resolution image of a portion of the nanowires The inset of (a) shows a higher magnification image of sample A; the inset of (b) is a top view image; the inset of ... substrates [17] The NWs density is mainly governed by the nucleation kinetics of clusters on the surfaces, and the NW density r is determined by the materials deposition rate and growth temperature: ... characterization The effects of growth temperature on the frequency shift of longitudinal optical (LO), transverse optical (TO), and surface optical (SO) modes are analyzed Furthermore, a splitting of TO...
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báo cáo hóa học:" The structural and optical properties of GaSb/InGaAs type-II quantum dots grown on InP (100) substrate" docx
... of the excitation power which is a typical feature of the type-I band transition Therefore, the interband transition of the GaSb QD would be the only proper origin of the highenergy peak In the ... character of type-II heterostructures The other supporting evidence of the type-II luminescence is the linear dependence of the PL peak energies over the third root of the excitation density [20] The ... with the 2DEG, electrons will still be blocked by the GaSb barrier and will not enter the QDs Therefore, this structure will prolong the lifetime of the holes So, the QD-FET based on the above band...
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Báo cáo hóa học: " The structural and optical properties of GaSb/InGaAs type-II quantum dots grown on InP (100) substrate" ppt
... of the excitation power which is a typical feature of the type-I band transition Therefore, the interband transition of the GaSb QD would be the only proper origin of the highenergy peak In the ... character of type-II heterostructures The other supporting evidence of the type-II luminescence is the linear dependence of the PL peak energies over the third root of the excitation density [20] The ... with the 2DEG, electrons will still be blocked by the GaSb barrier and will not enter the QDs Therefore, this structure will prolong the lifetime of the holes So, the QD-FET based on the above band...
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Tài liệu Báo cáo Y học: Short peptides are not reliable models of thermodynamic and kinetic properties of the N-terminal metal binding site in serum albumin doc
... from solution by the rest of the protein There is no correlation between the complex stability and the rate of its formation The Ni(II) for Cu(II) exchange rates for peptides are of the order of ... complexes of GGH, where the a carbon of the His residue is the sole source of chirality [10] However, while positions of the component dd bands and of CT transitions are relatively constant, their ... by albumins On the other hand, the direct thermodynamic and kinetic characterization of Ni(II) binding at site I in HSA and BSA was obtained These data can be very useful in further studies of...
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Báo cáo khoa học: Spectroscopic and kinetic properties of the horseradish peroxidase mutant T171S Evidence for selective effects on the reduced state of the enzyme potx
... between the magnitude of the changes in Fe-His band frequencies and the redox potential values This is exemplied by the case of CCP and its mutants D235E, D235N and D235A [27] The H-bond between the ... by the pH, are assigned by analogy to myoglobin and cytochrome c peroxidase (CCP) [22,23] to out -of- plane modes of the porphyrin ring itself together with the bending modes of the propionyl and ... comparison of the electronic absorption and RR spectra of the wild type and Thr171Ser either in the presence of the aromatic donor BHA or at alkaline pH Addition of saturating amounts of BHA did...
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Báo cáo khoa học: Effects of cardiomyopathic mutations on the biochemical and biophysical properties of the human a-tropomyosin docx
... determined by DSC for the wild type (WT) and mutant Tms The uncertainties listed are the standard errors of the mean and included the uncertainty in the determination of protein concentrations The values ... the third transition, either because of lack of resolution or because the transition was invisible to this probe Thus, the analysis of the melting profile of human Tm was enhanced by the use of ... that they unfolded in a multistep process The thermal-induced unfolding was highly reversible (> 95%), as shown by the repeatability of the DSC endotherms upon rescanning and the recovery of the...
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synthesis and optical properties of colloidal tungsten oxide nanorods
... implying that the nanorod growth occurs along 〈010〉 direction The length of the tungsten oxide nanorods can be easily varied by simple changes in the reaction parameters Shorter nanorods of 25 ( nm ... irrelevance to the band structures of the tungsten oxide system In summary, we have reported the first solution- based preparation of soluble and highly crystalline tungsten oxide nanorods of varying ... COMMUNICATIONS Comparing the intensities of the (010) and (014) peaks of the sample with those of the bulk W18O49, it was found that the relative intensity of (010) has been dramatically...
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Báo cáo khoa học: Structural aspects and biological properties of the cathelicidin PMAP-36 pot
... at the proform level of the cathelicidin [21], and this structure is likely to persist in the mature peptide Indeed, it may explain the different activity spectra and potencies observed for the ... reaction, by analogy to other cathelicidins such as SMAP-29, BMAP-27 and BMAP-28 The amidated form would further increase the charge of the dimer to +28 (see Table 1) Here we further investigated the ... on the surface of both the E coli and S aureus cells The dimeric peptide, in particular, can be seen to have caused the complete collapse of the membrane in E coli, and severe disruption of the...
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synthesis and optical properties of au-ag alloy nanoclusters with controlled composition, p26
... Appearance of no absorption peak in the case of Au/Ag =1/9 indicates the formation of neither type of nanoparticles On the other hand, the SPR peak positions (Fig.1, right) of the colloidal solutions ... real part of the sum of the scattering coefficients an and bn, and are function of particle radius, and light wavelength λ (in terms of the Ricatti-Bessel functions) As the absorption band of noble ... dominated by the free electron behavior, the dielectric function can be described well through the Drude´s model The magnitudes of the real and imaginary parts of the dielectric function of the particles...
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Báo cáo toán học: " Structural and optical properties of ZnS thin films deposited by RF magnetron sputtering" potx
... http://www.nanoscalereslett.com/content/7/1/26 temperatures on the structural properties of the films has been investigated, and the optical properties of the films have also been analyzed Methods Synthesis ZnS films were deposited onto ... 40 kV and 40 mA The surface morphology and grain size of the films were determined by FESEM (Hitachi S-4800; Hitachi, Ltd., Tokyo, Japan) The thickness of the films was estimated using the cross-sectional ... draft of the manuscript JHA analyzed the properties and helped draft the manuscript KNH and KSH detailed the original idea and modified the first draft of manuscript YGS finalized the manuscript and...
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Báo cáo hóa học: " Synthesis, magnetic and optical properties of core/shell Co1-xZnxFe2O4/SiO2 nanoparticles" pot
... properties of the nanoparticles [34] The optical properties of the nanostructures have been investigated earlier using many techniques, among them is the diffuse reflectance spectroscopy [35] The main ... compared with the other prepared nanoparticles (zinc ferrite and cobalt zinc ferrite nanoparticles) This is due to the effect of the change of color on the optical properties of the ferrite nanoparticles ... explained the magnetic properties & SEM images and contributed in the writing of the manuscript MMSW participated in the conception and design of the study, prepared the nanoparticles, explained the...
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Báo cáo hóa học: " Effect of Composition on Electrical and Optical Properties of Thin Films of Amorphous GaxSe1002x Nanorods" pptx
... deeper band tails extended in the gap and thereby, leading to a decrease in the value of optical band gap 123 Thin Films of a-GaxSe100-x nanorods have been synthesized by thermal evaporation technique ... (hm) of thin films of a-GaxSe100-x nanorods solids The presence of high concentration of localized states in the band structure is responsible for the decrease in optical band gap on increasing the ... system of GaxSe100-x nanorods obeys the rule of indirect transition and the relation between the optical gap, optical absorption coefficient a and the energy hm of the incident photon is given by...
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báo cáo hóa học:" Structural and optical properties of a radio frequency magnetron-sputtered ZnO thin film with different growth angles" pdf
... studied the growth angle effect of the films for optical properties The thickness of the ZnO thin films was checked by FE-SEM and was fixed at 100 nm Three growth angles (0°, 15°, and 30°) of the ... has the best condition on average and low values The transmittance and reflectance are slightly changed by the growth angle of ZnO films Figure shows the reflectance patterns of the ZnO films ... patterns of the ZnO films All ZnO films showed different patterns according to the wavelength of incidence rays The ZnO film with a 0° growth angle has the lowest reflectance of 10.81% at 418 nm The...
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