microstructural magnetic and optical properties of zno mn nanocluster assembled films and zno mn sio2 nanocomposite
Cu AND mn EMBEDDED zno NANOCLUSTER ASSEMBLED FILMS AND NANOCOMPOSITES FABRICATION, CHARACTERIZATION AND PROPERTIES
... (1) the magnetic and optical properties of Cu nanocluster- embedded ZnO thin film; (2) the magnetic and optical properties of Zn0.94Cu0.06O nanocluster assembled films and (3) ZnO: Cu -SiO2 nanocomposite; ... 53 Chapter Microstructural, magnetic and optical properties of ZnO: Cu nanocluster assembled films and ZnO: Cu -SiO2 nanocomposite 55 5.1 ZnO: Cu Nanocluster Assembled Films ... study their unique magnetic and optical properties (3) To produce Zn0.9 4Mn0 .06O nanocluster assembled films and ZnO: Mn- SiO2 nanocomposite and study their unique magnetic and optical properties 1.4...
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Cu AND mn EMBEDDED zno NANOCLUSTER ASSEMBLED FILMS AND NANOCOMPOSITES FABRICATION, CHARACTERIZATION AND PROPERTIES
... (1) the magnetic and optical properties of Cu nanocluster- embedded ZnO thin film; (2) the magnetic and optical properties of Zn0.94Cu0.06O nanocluster assembled films and (3) ZnO: Cu -SiO2 nanocomposite; ... 53 Chapter Microstructural, magnetic and optical properties of ZnO: Cu nanocluster assembled films and ZnO: Cu -SiO2 nanocomposite 55 5.1 ZnO: Cu Nanocluster Assembled Films ... study their unique magnetic and optical properties (3) To produce Zn0.9 4Mn0 .06O nanocluster assembled films and ZnO: Mn- SiO2 nanocomposite and study their unique magnetic and optical properties 1.4...
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evaluation of shape and size effects on optical properties of zno pigment
... nm and thicknesses of 50 nm In Fig 2(c) and (d), FE-SEM images of the submicrorods ZnO is shown The diameters of ZnO rods are about 100 nm and their lenghts are up to m The FE-SEM images of ... large scale, and all of the nanorods have diameters of about 50 nm and lengths of 300 nm Fig (i–k) exhibits the FESEM images of nanoparticle-decorated ZnO pigment The surface of ZnO pigment was ... is due to ZnO band gap and this phenomenon is one of the most important ZnO characteristics [14] The particle sizes of scale-like and submicrorod ZnO pigments are in the optimum range of 0.25–0.45...
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Báo cáo hóa học: " Effects of silver impurity on the structural, electrical, and optical properties of ZnO nanowires" doc
... ablation and deposition of thin films Chem Soc Rev 2004, 33:23 31 Kim KK, Kim HS, Hwang DK, Lim JH, Park SJ: Realization of p-type ZnO thin films via phosphorus doping and thermal activation of the ... images of various SZO NWs grown using 1, 3, and wt.% Ag-doped ZnO ceramic targets As shown in Figure 1a, b, the distribution of the SZO NWs is random, with the average diameter of about 60 nm and ... 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...
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Báo cáo sinh học: " Influence of helium-ion bombardment on the optical properties of ZnO nanorods/p-GaN light emitting diodes" pot
... physical properties of ZnO nanostructures [19] The irradiation changes the amount of defects in ZnO nanorods resulting in changes in the optical properties of ZnO The effect of the ion irradiation of ... Influence of helium-ion bombardment on the optical properties of ZnO nanorods/p-GaN light-emitting diodes N H Alvi*1, S Hussain1, J Jensen2, O Nur1, and M Willander1 Department of Science and Technology ... influence the optical and electrical properties of heterojunctions The p-GaN as a substrate is a good candidate that has small lattice mismatch with ZnO There is only few growth reports of n -ZnO nanorods...
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báo cáo hóa học:" Influence of helium-ion bombardment on the optical properties of ZnO nanorods/p-GaN light emitting diodes" pdf
... physical properties of ZnO nanostructures [19] The irradiation changes the amount of defects in ZnO nanorods resulting in changes in the optical properties of ZnO The effect of the ion irradiation of ... Influence of helium-ion bombardment on the optical properties of ZnO nanorods/p-GaN light-emitting diodes N H Alvi*1, S Hussain1, J Jensen2, O Nur1, and M Willander1 Department of Science and Technology ... influence the optical and electrical properties of heterojunctions The p-GaN as a substrate is a good candidate that has small lattice mismatch with ZnO There is only few growth reports of n -ZnO nanorods...
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Báo cáo hóa học: " Temperature dependent optical properties of single, hierarchically self-assembled GaAs/AlGaAs quantum dots" potx
... excitation power of % 480 Wcm–2 with integration times of s The PL lines located at 1.429 eV, 1.581 eV, and 1.708 eV are assigned to bulk GaAs, the first excited state of the single GaAs QD, and the quantum ... (solid line) and from an ensemble of GaAs QDs (dashed line) For the excitation of the ensemble sample, the laser light was focused using a · microscope objective to a spot diameter of 20 lm and about ... we display a typical temperature variation of the peak position energy and the homogeneous linewidths of the X PL-line of a single GaAs QD (T £ 100 K) and QD ground-state (T > 100 K) deduced from...
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fabrication and optical properties of ordered sea urchin-like zno
... 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 is at about 360 ... and SAED pattern of the sea urchin-like ZnO nanostructures are presented in Fig Fig 2a and b displays the low magnification and high magnification SEM images of the sea urchin-like ZnO nanostructures, ... intact morphology of an individual sea urchinlike ZnO nanostructure is observed in Fig 2b It is clear that the ZnO crystals are assembled by a central nucleus and many needlelike ZnO which grow...
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Báo cáo hóa học: " Synthesis, magnetic and optical properties of core/shell Co1-xZnxFe2O4/SiO2 nanoparticles" pot
... investigate the effect of Zn2+ partially substituting for Co2+ in CoFe2O4 nanoparticles (Co1-xZnxFe2O4; x = 0, 0.5, and 1) and shelling with silica on the magnetic and optical properties of the ferrite ... condensation of TEOS on the surface of nanoparticles was achieved Finally, the core/shell CoFe2O4 /SiO2, Co0.5Zn0.5Fe2O4 /SiO2, and ZnFe2O4 /SiO2 particles were separated using external magnet, and washed ... uncoated (a) and coated with silica shell (b) the width of hysteresis loop and the magnetic moment decrease due to the substitution of the magnetic Co element by Zn element which is a non-magnetic...
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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
... 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 columnar ZnO films were carefully ... Page of (a-2) (b-2) (c-2) Figure FE-SEM images of ZnO films with various growth angles ZnO films at (a-1) 0°, (b-1) 15°, and (c-1) 30° growth angles and their enlarged images (a-2, b-2, and c-2) ... ZnO films with three growth angles Film thickness is of the same value (100 nm) Figure 2a-1 shows the crosssection view of the 0° growth-angled columnar ZnO film Columnar ZnO films with angles of...
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DEFECT INDUCED NOVEL ELECTRICAL, MAGNETIC AND OPTICAL PROPERTIES OF TIO2 THIN FILMS GROWN BY PULSED LASER DEPOSITION
... application of identification of compounds, there are a large number of reported works on the characterisation of concentration and mobility of free carriers, strain and crystal quality, determination of ... and ferromagnetism 33 Brief history of Kondo effect 34 Experimental Methods 38 3 Magnetic and electrical transport of Ta0.06Ti0.94O2 39 v Thermopower and magnetic ... applications The objective of this thesis is to investigate the defect induced electrical, optical, magnetic and structural properties of titanium dioxide (TiO2) thin films grown by pulsed laser...
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Electronic, magnetic and optical properties of atomically controlled complex oxide heterostructures and interfaces
... ELECTRONIC, MAGNETIC AND OPTICAL PROPERTIES OF ATOMICALLY CONTROLLED COMPLEX OXIDE HETEROSTRUCTURES AND INTERFACES XIAO WANG (B.Sc, Shandong University, P.R China) A THESIS SUBMITTED FOR THE DEGREE OF ... Xie, Dr Jiabo Yi, Tom Wijnands, Wentao Xu, Dr Kalon Gopinadhan, Prof Alexander Brinkman, Asst Prof Wei Chen, Prof Ganaphathy Baskaran, Assoc Prof Jun Ding, Asst Prof Andrivo Rusydi, Joost Beukers, ... Cr, Mn, Fe, Ni, Co, Cu, Nb, Ta and Bi) All impurity elements show traces below ten coundts (b) The content of magnetic elements (Cr, Mn, Fe, Ni and Co) in the magnetic LAO (10 uc)/STO sample and...
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Electronic, magnetic and optical properties of oxide surfaces, heterostructures and interfaces role of defects
... and magnetic properties of SrRuO3/LaAlO3 (SRO/LAO) superlattices By varying the thickness of SRO layers in the superlattices, we are able to modulate both electrical and magnetic properties of ... 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 ... 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...
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Effects of simultaneous doping with boron and phosphorous on the structural, electronic and optical properties of silicon nanostructures
... effects of size and shape of Si-nc on the incorporation of group-III (B and Al), group-IV (C and Ge) and group-V (N and P) impurities Single-doping has been investigated both in spherical and faceted-like ... 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 ... 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 a large...
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First principles optical properties of silicon and germanium nanowires
... simple EMA models Optical properties of SiNWs and GeNWs In Section of the present paper, we aim to point out the importance of the many-body effects on the optical response of some of the studied ... in terms of the different geometrical structure of wires grown with different orientation Finally the comparison of the optical spectra of SiNWs and GeNWs with diameters of the order of 0.8 nm, ... onset of optical absorption is found only in the case of GeNWs and not in the case of SiNWs With the inclusion of the excitonic effects (bottom panels) we see that an important transfer of the...
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Electronic structure and magneto optical properties of solids v antonov, b harmon, a yaresko
... 2.1.8 Fe3O4 and Mg2+ -, or Al3+ -substituted magnetite Magneto -optical properties of magnetic multilayers 2.2.1 Magneto -optical properties of Co/Pd systems 2.2.2 Magneto -optical properties of Co/Pt ... STRUCTURE AND MAGNETO -OPTICAL PROPERTIES OF SOLIDS TLFeBOOK This page intentionally left blank TLFeBOOK Electronic Structure and Magneto -Optical Properties of Solids by Victor Antonov Institute of Metal ... theoretical investigations of the electronic structure, optical, MO, and XMCD properties of compounds and multilayered structures Chapter of this book is of an introductory character and presents the theoretical...
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synthesis and optical properties of colloidal tungsten oxide nanorods
... and the intensity of this peak increases relative to that of UV emission as the length of nanorods increases A similar PL pattern with two emission maxima, yet at much lower energies of 2.8 and ... band gap due to impurities.22b In light of these assignments, we suggest that the UV emission of nanorod samples in this work might correspond to the band-toband transition The blue emission of ... 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 increased...
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characterization and optical property of zno nano-,
... images of the ZnO nanorods; (c) low- and (d) high-magnification FESEM images of the ZnO submicrorods and (e) low- and (f) high-magnification FESEM images of the ZnO microrods detailed morphology of ... characterization and optical properties of star-like ZnO nanostructures, Mater Lett 64 (2010) 898–900 [28] Y.H Ni, X.W Wei, J.M Hong, Y Ye, Hydrothermal preparation and optical properties of ZnO nanorods, ... energy of 60 meV ZnO micro- and nanoparticles have been extensively studied over the past few years because of their size-dependent electronic and optical properties [1] Particle size and morphology...
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