optical microscopy scanning probe microscopy ion microscopy and nanofabrication
Application of biased scanning probe microscopy techniques for multifunctional characterization of bifeo3 and zno thin films
... hysteresis loop Forward and reverse coercive voltages, V+ and V−, nucleation voltages Vc+ and Vc− , + − and forward and reverse saturation and remnant responses, R0 , R0 , Rs+ and Rs− , are shown ... future materials for advanced electronic applications Scanning probe microscopy techniques, Piezoresponse Force Microscopy (PFM) and Kelvin Probe Force Microscopy (KPFM) are used in this work to characterize ... 2.3.2 Domain relaxation 32 References Chapter 3: Literature Review-Kelvin Probe Force Microscopy 35 38 3.1 Kelvin Probe Force Microscopy 39 3.2 Detection in Kelvin Probe Force Microscopy 40 3.2.1...
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Nanostructure, biopiezoelectric and bioferroelectric behaviors of mollusk shells studied by scanning probe microscopy techniques
... migration and proliferation, orientation of inter- and intra-cellular macromolecules, enzyme activation and suppression and many other physiological phenomena Recently, the piezoelectric and ferroelectric ... amplitude [(c) and (e)] and phase [(d) and (f)] images in the vertical direction The 3rd row are the DART amplitude [(g) and (i)] and phase [(h) and (j)] images in the lateral direction All of the ... Last row are the magnitude [(k) and (m)] and argument [(l) and (n)] images of vectorPFM in the x-z [(k) and (l)], and y-z [(m) and (n)] planes Fig 5.5 Topographic and PFM images of deproteinated...
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Tài liệu SCANNING PROBE MICROSCOPY – PHYSICAL PROPERTY CHARACTERIZATION AT NANOSCALE pptx
... interactions between the magnetic probe and ferromagnetic surface The unique combination of nanoscale Scanning Probe Microscopy – Physical Property Characterization at Nanoscale resolution and broad ... advantages, limitations and possible applications of the instrument in materials characterization and nano NDE are discussed 6 Scanning Probe Microscopy – Physical Property Characterization at Nanoscale ... SCANNING PROBE MICROSCOPY – PHYSICAL PROPERTY CHARACTERIZATION AT NANOSCALE Edited by Vijay Nalladega Scanning Probe Microscopy – Physical Property Characterization at Nanoscale...
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the origin of interferometric effect involving surface plasmon polariton in scattering nearfield scanning optical microscopy
... interactions beyond the diffraction limit, including material identification [2], characterization of optical devices [3– 5], and nanoscale spectroscopy [6–8] The key of high resolution imaging ... optical microscopy (ANSOM or s-NSOM) has been demonstrated to achieve optical resolution of the order of 10 nm [1,2] This ability of high resolution optical imaging has been applied to investigate optical ... and R Hillenbrand, “Near-Field Imaging of Mid-Infrared Surface Phonon Polariton Propagation,” Appl Phys Lett 87(8), 081103 (2005) Introduction Apertureless or scattering near field scanning optical...
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the origin of interferometric effect involving surface plasmon polariton in scattering nearfield scanning optical microscopy
... interactions beyond the diffraction limit, including material identification [2], characterization of optical devices [3– 5], and nanoscale spectroscopy [6–8] The key of high resolution imaging ... optical microscopy (ANSOM or s-NSOM) has been demonstrated to achieve optical resolution of the order of 10 nm [1,2] This ability of high resolution optical imaging has been applied to investigate optical ... and R Hillenbrand, “Near-Field Imaging of Mid-Infrared Surface Phonon Polariton Propagation,” Appl Phys Lett 87(8), 081103 (2005) Introduction Apertureless or scattering near field scanning optical...
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Báo cáo hóa học: " Layer-dependent nanoscale electrical properties of graphene studied by conductive scanning probe microscopy" docx
... conductive scanning probe microscopy Nanoscale Research Letters 2011 6:498 Submit your manuscript to a journal and benefit from: Convenient online submission Rigorous peer review Immediate publication ... In conclusion, the nanoscale electrical properties of graphene with different number of layers have been studied by SCM and EFM, and the layer dependences of capacitance variation and EFM phase ... states and zero Landau level probed through capacitance of graphene Phys Rev Lett 2010, 105:136801 28 Ohta T, Bostwick A, McChesney JL, Seyller T, Horn K, Rotenberg E: Interlayer interaction and...
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Báo cáo hóa học: " Scanning Probe Microscopy on heterogeneous CaCu3Ti4O12 thin films" ppt
... characterization and conceived of the study RL performed the film deposition and conceived of the study VR conceived of the study and participated in its design and coordination section All authors read and ... Nanoscope V controller and the Nanoman head operating in air, in contact mode and in closed loop condition, using the Conductive Atomic Force Microscopy (C-AFM) module Standard experiments were ... permittivity in advanced functional heterogeneous materials: the relevance of the local measurements at submicron scale In Scanning Probe Microscopy in Nanoscience and Nanotechnology Edited by:...
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Báo cáo hóa học: " Memory properties and charge effect study in Si nanocrystals by scanning capacitance microscopy and spectroscopy" docx
... modulation voltages and the magnitude of capacitance variation is generally a nonlinear function of the carrier concentration Figure shows the topography and SCM image The contrast between Si-nc and ... nanocrystals by scanning capacitance microscopy and spectroscopy Nanoscale Research Letters 2011 6:163 Acknowledgements Thanks X.Y Ma for her helpful suggestions and Armel Descamps-Mandine from the ... Relationship between charge distribution and its image by electrostatic force microscopy J Appl Phys 2003, 93:5369 Shafai C, Thomson DJ, Simard-Normandin M, Mattiusi G, Scanlon PJ: Delineation...
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Angular gating and biological scattering in optical microscopy
... signal, and thus can further improve the imaging penetration depth The introduction of focal modulation microscopy, by the combination of angular gating technique and modulation and demodulation ... diffraction limited spatial resolution and molecular specificity The subsequent sections provide an overview of high resolution microscopy and different models in tissue optics 1.2 Motivation Optical ... performance microscopy named focal modulation microscopy by the combination of angular gating technique, and modulation and demodulation techniques, to simultaneously enhance the imaging penetration...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 1
... interactions, including van der Waals forces and - interactions In addition to the adsorbates/substrates interactions, the intermolecular interactions also play important roles during the formation ... molecular orientation Fig 1.5 Schematic of the formation of the traditional SAMs [13] The adsorbates randomly distribute on the surface at low surface coverage, where the molecule either stands or lies ... structure and its functional groups are also crucial during the formation of the SAMs [44, 45] In contrast, very few systematic works towards understanding the mechanism of SAMs formation at the...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 2
... -1.43 V where SRP stands for standard reduction potential The above reaction involves the oxidative dissolution of W to soluble tungstate (WO42-) anions at the anode, and the reduction of water to ... requires tip-to-sample position control with picometer precision, a fine positioning capability in three dimensions, high scanning speed, and simplicity of operation These requirements have to ... good vibration-isolation system is very important for a well-functioning STM In the process of minimization of the sensitivity of an STM to vibrations from the building, ventilation ducts and people’s...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 3
... finds useful applications such as the production and detection of sound, generation of high voltages, electronic frequency generation, microbalance, and ultra fine focusing of optical assemblies ... also the basis of operation of the scanning probe microscope, such as STM and AFM Scanner serve as the “movers and shakers” of every scanning probe microscope 39 CALIBRATION Typically, they consist ... methodology to perform calibration of the “A” scanner for scanning tunneling microscope function 3.3.2 Calibration Procedures The calibration of STM can be conducted with a standard sample: highly ordered...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 4
... verify the existence of interaction between the adsorbate and graphite surface 4.2 STM Results and Computational Simulations 4.2.1 Solution Preparation Three solutions of fatty acids in phenyloctane ... Computational Simulations Computational simulations were carried out for structural modeling and adsorption energies calculations for binary acids that physisorbed on the HOPG surfaces In addition ... adsorption always starts at the surface defect [20] Fig 4.10 Proposed adsorption site and orientation of first adsorbed alkyl group on HOPG surface (top view): The dark lines on the left hand side and...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 5
... 5.1 there are two major sections A and B within the area scanned (60nm×60nm) The DDPER lamella has a 33° angle and 77° angle with horizontal direction within section A and B, respectively, as indicated ... steric repulsion Fig 5.4 The molecular model of the DDPER arrays 5.4 The Computational Simulation 5.4.1 Conformation of gas phase DDPER and its derivatives Building of the computational model ... surface interaction 83 FORMATION OF SAMs CONRTOLLED BY STERIC EFFECTS 5.4.2 DDPER/HOPG vs S170/HOPG Computational simulation was applied to compare the adsorption energies of DDPER and S170 on graphite...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 6
... Illustration of physisorption of HHB molecule onto HOPG surfaces 102 ADSORPTION-INDUCED CHIRAL SAMs The physisorption process can be considered as an addition reaction between the HHB and graphite ... ADSORPTION-INDUCED CHIRAL SAMs changes and the symmetry breaking which results in chirality [9, 12, 17, 21-25] The development of the scanning probe techniques especially scanning tunneling microscopy ... types of SAMs arrangement and their boundary Data was treated with Spectrum 2D function (Vbias = 100mV, and Iset = 150pA) 100 ADSORPTION-INDUCED CHIRAL SAMs 6.3 Discussion 6.3.1 STM Images of HHB...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 7
... monolayers, the use of scanning tunneling microscopy and the scanning results had been discussed in detail in reviews by De Feyter [3, 4], Wan [5] and Tao [6] But Matzger and his coworkers’ attempt ... SAMs at a lower concentration solution (~10 mg/mL in phenyloctane) was lower than that of 30mg/mL solution Meanwhile the solutions at higher concentrations, e.g 50mg/mL and 80mg/mL, could be observed ... adsorbate/substrate interaction and intermolecular interactions for larger molecules 7.6 Conclusion and Future Works We have discussed several factors that can affect the formation of SAMs on the HOPG...
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Optical coherence microscopy and focal modulation microscopy for real time deep tissue imaging
... theoretical predictions, resulting in reduced bandwidth and spectral resolution, hence, reduced axial resolution and ranging depth [105-106] The degraded spectral resolution and effective bandwidth will ... biomedical applications A novel dual-mode microscopy combining optical coherence microscopy and focal modulation microscopy (FMM) is developed as a dedicated instrument for simultaneous and collinear ... microscopy 118 6.5 Discussions 120 6.6 Conclusion 122 Chapter Conclusions and recommendations 124 7.1 7.2 Conclusions 126 Recommedations...
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Tài liệu Smear microscopy and culture conversion rates among smear positive pulmonary tuberculosis patients by HIV status in Dar es Salaam, Tanzania ppt
... collected and sent to CTRL for culture, standard smear microscopy and fluorescence microscopy to assess conversion to a negative test Patients who had a persistent positive microscopy and/ or culture ... order to prevent progression to active disease [15] Conclusion Conversion rate of standard smear microscopy and fluorescence microscopy did not differ between HIV positive and HIV negative pulmonary ... Education No education 25.0 (42) 24.2 (80) Have education 75.0 (126) 75.8 (250) 0.85 Education level No formal education 8.9(15) 7.6(26) Primary education 76.2 (128) 76.7 (253) Secondary education...
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Diagnosis of pulmonary tuberculosis by smear microscopy and culture in a tertiary health care facility: Biology and Medicine docx
... gold standard With the emergence of MDR and XDR TB, case detection and identification retains a very high priority With this study we wish to emphasize the efficiency of ZN staining method and Culture ... studied (Kent and Kubica, 1985) The results and observations were subjected to statistical analysis (Pearson Chisquare test, Continuity Correction, Measurement of Agreement (Kappa) and Likelihood ... Sensitivity and Specificity was found to be 93.45% and 88.10 % for Primary and secondary smear respectively The Positive predictive value and Negative Predictive value was 96.91 % and 77.08 %...
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Tìm thêm: xác định các mục tiêu của chương trình khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế điều tra đối với đối tượng giảng viên và đối tượng quản lí khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct mở máy động cơ lồng sóc mở máy động cơ rôto dây quấn các đặc tính của động cơ điện không đồng bộ đặc tuyến hiệu suất h fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến tốc độ rôto n fi p2 đặc tuyến dòng điện stato i1 fi p2 động cơ điện không đồng bộ một pha thông tin liên lạc và các dịch vụ phần 3 giới thiệu nguyên liệu từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose