optical properties and related applications

... spectra and the process of energy transfer from the PVP to the Mn2+ luminescent centers in doped ZnS as well as the optical band gap variation are also discussed 123 The optical properties and energy ... electronic devices and displays (Hajduk et al 2008; Cihaner and Algi 2009) New progress has been made in the area of thermoelectric (TE) applications of conducting polymers and related organic–inorganic ... experimental and theoretical studies of the luminescence, non-linear optical and electrical properties of a variety of polymers have been performed (Jarzabek et al 2006, 2008) directed towards understanding

Ngày tải lên: 16/12/2017, 09:10

... amide I band at 1693 cm1, an NH bending band at 1575 cm1 and a CH2 bending band at 1575 cm1in the amide II band and an amide III NH bending band and a CAO stretching band at 1268 cm1and 1096 ... band gap is 5.217 eV The values of the direct band gaps Edand the indirect band gaps Einfor the gelatine gels are shown inTable 3 Along the absorption coefficient curve and near the optical band ... microorganisms, plants, and animals and is a constituent of enzymes and proteins, excessive Ni affects the photosynthetic functions of higher plants, causes acute and chronic diseases in humans and reduces

Ngày tải lên: 13/01/2020, 05:16

... important optical and photothermal properties of gold nanoparticles in different shapes and structures and address their recent applications for cancer imaging, spectro-scopic detection and photothermal ... (Fig 3A), the SPR band is split into two bands: a strong band in NIR region corresponding to electron oscillations along the long axis, referred to longitudinal band, and a weak band in the visible ... analyze the effects of the size and geometry on the SPR absorption, scattering and total extinction El-Sayed and co-workers adopted DDA and stud-ied the optical properties of gold nanorods in

Ngày tải lên: 14/01/2020, 18:28

... the valence π and conduction π ∗ energy bands symmetrically located with respect to the Fermi energy,optical transitions E pp  from the p-th valence band to the p -th conduction band occur in ... sample and the other is a thin film.Chen et al made SWNT solu-tions by cutting and grinding the nanotube sample [41],and they successfullymeasured the optical absorption spectra of undoped and of ... as the RadialBreathing Mode (RBM) properties and the special twist acoustic mode which is unique among 1D phonon subbands Using the simple tight-binding method and pair-wise atomic force stant

Ngày tải lên: 07/09/2020, 14:39

... SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY INTITUTE OF PHYSICS -*** - DO THI HUE SYNTHESIS AND OPTICAL PROPERTIES OF GOLD NANOSTRUCTURES SPHERICAL, ROD AND CORE/SHELL ... scattering and absorbing of light by the surface plasmon The optical properties of metallic nanostructures are explained by the theory of Mie and Gans 1.1.2 The Mie theory - the dependence of optical properties ... exigency and the ability to response those exigencies of the gold nanostructures, as well as from the research situation in the world and in Viet Nam, we chose and study the topic: “Synthesis and optical

Ngày tải lên: 09/01/2020, 15:38

... OF SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY INTITUTE OF PHYSICS *** DO THI HUE SYNTHESIS AND OPTICAL PROPERTIES OF GOLD NANOSTRUCTURES SPHERICAL, ROD AND CORE/SHELL ... scattering and absorbing of light by the surface plasmon The optical properties of metallic nanostructures are explained by the theory of Mie and Gans 1.1.2 The Mie theory - the dependence of optical properties ... exigency and the ability to response those exigencies of the gold nanostructures, as well as from the research situation in the world and in Viet Nam, we chose and study the topic: “Synthesis and optical

Ngày tải lên: 15/01/2020, 10:38

... and α and β are constants The physical significance and the values of α and β have been a subject of... Electronic Properties Bulk metals possess a partially filled electronic band and ... prepare and study nanocrystals of metals, semiconductors and other substances by various means Advances in both experimental and theoretical methods have led to an understanding of the properties ... particles of metals and semiconductors... to a few tens of atoms For example, Landman and coworkers [57, 58] have carried out extensive computer simulations, on the structure and dynamics of

Ngày tải lên: 04/06/2014, 14:28

... synthesis and characterization of bimetallic nanoparticles due to their unique catalytic, electronic, optical, structural and thermal properties [1-5] and subsequent technological applications ... [37].Optical and structural properties of the samples were studied using optical absorption spectroscopy in the UV-Vis range, transmission electron microscopy (TEM), high resolution TEM (HREM), and ... shape of those nanoparticles, optical absorption spectra give a quick and gross idea on their shapes and sizes In this study we used TEM, HREM and HAADF, along with optical absorption spectroscopy

Ngày tải lên: 04/06/2014, 15:20

... by Use of Nickel and Tantalum from a Materials Science Point of View 171 Yu Cao and Lars Nyborg Other applications: Electrical, Structural and Biomedical 195 Properties and Applications of Ceramic ... Trang 11Thin Films and Electromagnetic ApplicationsPart 1 Thin Films and Electromagnetic Applications Trang 13Identification and Kinetic Properties of the Photosensitive Impurities and Defects in ... Trang 1ProPerties and aPPlications of silicon carbideEdited by rosario GerhardtTrang 2Properties and Applications of Silicon CarbideEdited by Rosario

Ngày tải lên: 20/06/2014, 04:20

... Rp1 and Rp2 are projected ranges, and n1, n2, r1, r2, A1, A2, m1, and m2 are parameters related to the range stragglings ΔRp1 and ΔRp2, skewnesses γ1 and 2, and kurtoses β1 and ... and P 1 , P 2 in 4H SiC and XX and PP in 6H SiC. The X and XX, P 1 and PP defects have similar g-tensors and symmetry features, respectively. The EPR spectrum of X and XX defect was observed ... and P 1 , P 2 in 4H SiC and XX and PP in 6H SiC. The X and XX, P 1 and PP defects have similar g-tensors and symmetry features, respectively. The EPR spectrum of X and XX defect was observed

Ngày tải lên: 20/06/2014, 04:20

... 3C-SiC and (b) 4H-SiC, and (c) in-plane TM atom placement used in the calculations of magnetic moments and properties of different magnetic states TM, Si, and C atoms added by periodicity and not ... 3C-SiC and (b) 4H-SiC, and (c) in-plane TM atom placement used in the calculations of magnetic moments and properties of different magnetic states TM, Si, and C atoms added by periodicity and not ... et al using the four adjusting parameters B/A, B, C, and L, and that the values of B/A, C, and L, and the temperature de- pendences of C and L for Si-face are different from those for C-face

Ngày tải lên: 20/06/2014, 04:20

... parameters ε r SiC , μ r SiC and S – has the constitutive parameters ε r a , μ r a of ambient air. Magnitudes ε r SiC = Re (ε r SiC ) - Im (ε r SiC ) and Properties and Applications of Silicon ... mode is denoted with points and the first higher mode... Electronics and Electrical Engineering, Vol 106, No 10, 83-86, ISSN 1392-12 15 140 Properties and Applications of Silicon ... Especially, we would stress that 126 Properties and Applications of Silicon Carbide the SiC waveguide operates in single-mode regime And the waveguide broadband width is approximately 25%

Ngày tải lên: 20/06/2014, 04:20

... sensing and imaging for an array of military, security and industrial applications These applications include the spectroscopic-based detection identification and characterization of chemical and ... of chemical and biological agents and materials, remote and standoff early-warning for chemical-biological warfare threats, and imaging of concealed weapons and explosives, just to name a few ... though the big difference is the energy bandgap Standard semiconductors have almost three times smaller bandgaps than the wide bandgap materials SiC and GaN However, it is probably the ten times

Ngày tải lên: 20/06/2014, 04:20

... bcc α-phase and tetragonal β-phase The α-phase has high toughness and ductility as well as low electrical resistivity and corrosion resistance, while the β-phase is hard and brittle and less desirable ... bcc α-phase and tetragonal β-phase The α-phase has high toughness and ductility as well as low electrical resistivity and corrosion resistance, while the β-phase is hard and brittle and less desirable ... alternating layers of C and Ni-silicides (900C, 24 h or 40 h) (Bhanumurthy & Schmid-Fetzer, 2001; Park et al., 1999), or alternating silicide bands and silicide bands with embedded C (950C,

Ngày tải lên: 20/06/2014, 04:20

... effects and SiCw defects is given in Section 3.8 Properties of the Al2O3 and sintering additives seem to have less impact on the final properties (assuming high density is achieved) and will ... effects and SiCw defects is given in Section 3.8 Properties of the Al2O3 and sintering additives seem to have less impact on the final properties (assuming high density is achieved) and will ... the percolation of the filler particles and the fractal nature of filler distribution in non- Trang 4whisker particulate composites and related it to the ac and dc electrical response (Connor et

Ngày tải lên: 20/06/2014, 04:20

... pressure assisted sintering, and to investigate the influence of a variety of additives, including carbon and silicon carbide, on the processing and oxidation resistance of Hf and Zr diborides These ... dealt with the thermal stability and physical properties of ultra-refractory MB2-based ceramics in oxidizing environments, and highlighted the role of composition and microstructure on the mechanisms ... UHTCs and ended up in 1997 and 2000 demonstrating the use of ZrB2 and HfB2 for sharp leading edge in the Sharp Hypersonic Aero-thermodynamic Research Probe Ballistic experiments (SHARP-B1 and B2)

Ngày tải lên: 20/06/2014, 04:20

... influence voltage (RIV) and thermovision tests In the three tests, leakage current, RIV and thermovision, the phase-to-ground voltages 51 kV and 80 kV were applied to the 88 kV and 138 kV samples, ... influence voltage (RIV) and thermovision tests In the three tests, leakage current, RIV and thermovision, the phase-to-ground voltages 51 kV and 80 kV were applied to the 88 kV and 138 kV samples, ... parts and the results obtained in the laboratory tests The following surge arresters were selected: A2, A4, A6 (manufacturer A) and C1, C3 and C5 (manufacturer C) In the surge arresters A2, A4 and

Ngày tải lên: 20/06/2014, 04:20

... for human fibroblasts and osteoblasts (Naji and Harmand, 1991) and open porosity of these materials make them great candidates for biomedical applications. 3. Biomedical applications of SiC ... for human fibroblasts and osteoblasts (Naji and Harmand, 1991) and open porosity of these materials make them great candidates for biomedical applications. 3. Biomedical applications of SiC ... cytocompatibility levels. However, fibroblast and osteoblast attachment is not highly satisfactory, and during the second phase Properties and Applications of Silicon Carbide300 of osteoblast

Ngày tải lên: 20/06/2014, 04:20

... composite of 95 wt% hydroxyapatite and 5 wt% SiC exhibited better mechanical and biological properties than pure hydroxyapatite and further addition of SiC failed strength and toughness (Hesaraki et ... silicon carbide stent and a long-term release of the desired agent, PLA and PLGA are biocompatible materials useful for a variety of applications, including the design and properties of the controlled-release ... composite of 95 wt% hydroxyapatite and 5 wt% SiC exhibited better mechanical and biological properties than pure hydroxyapatite and further addition of SiC failed strength and toughness (Hesaraki et

Ngày tải lên: 20/06/2014, 04:20

... by Jerome J Cuomo, Stephen M Rossnagel, and Harold R Kaufman HANDBOOK OF MAGNETO -OPTICAL DATA RECORDING: edited by Terry McDaniel and Randall H Victora HANDBOOK OF MULTILEVEL METALLIZATION FOR ... PROCESSES AND TECHNIQUES, Second Edition: edited by Krishna Seshan HANDBOOK OF VACUUM ARC SCIENCE AND TECHNOLOGY: edited by Raymond L Boxman, Philip J Martin, and David M Sanders HANDBOOK OF ... DEPOSITION: by Huimin Liu and David S Dandy DIAMOND FILMS AND COATINGS: edited by Robert F Davis DIFFUSION PHENOMENA IN THIN FILMS AND MICROELECTRONIC MATERIALS: edited by Devendra Gupta and Paul S Ho ELECTROCHEMISTRY...

Ngày tải lên: 04/06/2014, 14:58