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waxd scanning electron microscopy sem transmission electron microscopy tem atomic force microscopy afm

Báo cáo khoa học:

Báo cáo khoa học: "Site adaptations of Acanthogyrus (Acanthosentis) tilapiae: Observations through light and scanning electron microscopy" pptx

Báo cáo khoa học

... eht sdrawot detneiro skooh devruc fo sgnir eerht yb deziretcarahc dna )C&B2 giF( esab eht ta retemaid ni mm 030.0 ± 093.0 dna htgnel ni mm 020.0 ± 014.0 yletamixorppa gnirusaem ,ralubolg tsomla ... nadamaR 32 1791 ,melasureJ ,snoitalsnarT cifitneicS rof margorP learsI ,534 p loV slaminA dliW dna citsemoD fo alahpecohtnacA IV oknehcorteP 22 601-99 ,34 ,6791 hsaW coS lacigolohtnimleH corP metsys ... rieht fo ytisnetni eht dna illiz aipaliT dna sucitolin simorhcoerO fo sllig eht dna retaw ni slatem yvaeh neewteb noitalerroc A MA raggaN -lE ,BA neissuH ,K awagO ,EA sargaH ,MM raggaN-lE 41 781-961...
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Tài liệu SCANNING PROBE MICROSCOPY – PHYSICAL PROPERTY CHARACTERIZATION AT NANOSCALE pptx

Tài liệu SCANNING PROBE MICROSCOPY – PHYSICAL PROPERTY CHARACTERIZATION AT NANOSCALE pptx

Sức khỏe giới tính

... Attractive and Repulsive Forces in Atomic Force Microscopy Physical Review B,Vol.43, No.6, pp 4728-4731 Gruverman, A.; Auciello, O.; Hatano, J & Tokumoto, H (1996) Scanning Force Microscopy as a Tool ... 38 Scanning Probe Microscopy – Physical Property Characterization at Nanoscale (a) (b) (c) Fig (a) Photography of Atomic force microscopy using a quartz tuning fork (Fork -AFM) (b) Header of AFM ... of Atomic- Force Microscope Tips Rev Sci Instrum.,Vol.64, No.7, pp.1868-1873 Hutter, J L & Bechhoefer, J (1993) Manipulation of Van Der Waals Forces to Improve Image Resolution in Atomic Force Microscopy...
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scanning electrochemical microscopy

scanning electrochemical microscopy

Sinh học

... Mississippi I INTRODUCTION A scanning electrochemical microscope is a scanning probe microscope (SPM) The scanning electrochemical microscopy (SECM) instrument necessarily resembles other SPM instruments, ... Austin Austin, Texas I BACKGROUND OF SCANNING ELECTROCHEMICAL MICROSCOPY This volume is devoted to a complete and up-to-date treatment of scanning electrochemical microscopy (SECM) In this introductory ... surface and then to follow changes with time I Semiconductor Surfaces SECM has been used to probe heterogeneous electron transfer reaction kinetics on semiconductor electrodes, such as WSe2 (29)...
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the origin of interferometric effect involving surface plasmon polariton in scattering nearfield scanning optical microscopy

the origin of interferometric effect involving surface plasmon polariton in scattering nearfield scanning optical microscopy

Vật lý

... home-made reflection type s-NSOM system A schematic of the experimental setup is shown in Fig This s-NSOM setup is based on a commercial Atomic Force Microscopy (AFM) system CombiScope 1000 from AIST-NT ... Appl Phys Lett 87(8), 081103 (2005) Introduction Apertureless or scattering near field scanning optical microscopy (ANSOM or s-NSOM) has been demonstrated to achieve optical resolution of the ... both an analytical model and numerical simulations The measurement is performed using an s-NSOM system applying the pseudo-heterodyne background suppression method [11] We show that the observed...
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the origin of interferometric effect involving surface plasmon polariton in scattering nearfield scanning optical microscopy

the origin of interferometric effect involving surface plasmon polariton in scattering nearfield scanning optical microscopy

Vật lý

... home-made reflection type s-NSOM system A schematic of the experimental setup is shown in Fig This s-NSOM setup is based on a commercial Atomic Force Microscopy (AFM) system CombiScope 1000 from AIST-NT ... Appl Phys Lett 87(8), 081103 (2005) Introduction Apertureless or scattering near field scanning optical microscopy (ANSOM or s-NSOM) has been demonstrated to achieve optical resolution of the ... both an analytical model and numerical simulations The measurement is performed using an s-NSOM system applying the pseudo-heterodyne background suppression method [11] We show that the observed...
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Báo cáo hóa học:

Báo cáo hóa học: " Layer-dependent nanoscale electrical properties of graphene studied by conductive scanning probe microscopy" docx

Hóa học - Dầu khí

... BJ: Scanning tunnelling microscopy and spectroscopy of ultra-flat graphene on hexagonal boron nitride Nat Mater 2011, 10:282 13 Sutter E, Acharya DP, Sadowski JT, Sutter P: Scanning tunneling microscopy ... these experiments were carried out in nitrogen atmosphere at room temperature with Pt-Ir coated Si tips Figure 1a shows a typical AFM image of graphene, which contains different graphene layers ... electrostatic force and capacitance behaviors The different electrical properties obtained on different number of graphene layers could be mainly attributed to their different electronic properties...
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Báo cáo hóa học:

Báo cáo hóa học: " Scanning Probe Microscopy on heterogeneous CaCu3Ti4O12 thin films" ppt

Hóa học - Dầu khí

... D3100 atomic force microscope (AFM) equipped with a Nanoscope V controller and the Nanoman head operating in air, in contact mode and in closed loop condition, using the Conductive Atomic Force Microscopy ... a nanometer scale using a conductive atomic force microscope J Appl Phys 2002, 91:2071 11 Fiorenza P, Polspoel W, Vandervorst W: Conductive atomic force microscopy studies of thin SiO2 layer ... at different temperatures from 298 up to 473 K Typical capacitance versus frequency curves (Figure 2) have been collected at several temperatures and both point out to a peculiar temperature dependent...
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Báo cáo hóa học:

Báo cáo hóa học: " Memory properties and charge effect study in Si nanocrystals by scanning capacitance microscopy and spectroscopy" docx

Hóa học - Dầu khí

... potential of low-temperature-grown GaAs using electrostatic force microscopy J Appl Phys 2005, 97:043703 Thirstrup C, Sakurai M, Stokbro K, Aono M: Visible light emission from atomic scale patterns ... Medium by Scanning Capacitance Microscopy J Appl Phys 1991, 70:2725 Lambert J, Guthmann C, Saint-Jean M: Relationship between charge distribution and its image by electrostatic force microscopy ... emission from atomic scale patterns fabricated by the scanning tunneling microscope Phys Rev Lett 1999, 82:1241 Matey JR, Blanc J: Scanning capacitance microscopy Journal of Applied Physics 1985, 57(5):1437-1444...
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SCANNING ELECTRON MICROSCOPY_3 doc

SCANNING ELECTRON MICROSCOPY_3 doc

Vật lý

... untreated state, deep-etch HCl, SEM etch Dix-Keller b) 505 °C, hours, deep-etch HCl, SEM etch Dix-Keller 422 Scanning Electron Microscopy c) 515 °C, hours, deep-etch HCl, SEM etch Dix-Keller d) 525 ... microscope and electron microscope so it is necessary observation using TEM microscopy 3.6 SEM observation of the fracture surface Topography of fracture surfaces is commonly examined by SEM The large ... compressive 440 Scanning Electron Microscopy strength was used as a practical indicator to investigate the strength development The microstructural analyses were performed using a scanning electron...
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SCANNING ELECTRON MICROSCOPY_1 ppt

SCANNING ELECTRON MICROSCOPY_1 ppt

Vật lý

... as ESEM: Environmental Scanning Electron Microscope, LVSEM: Low Vacuum Scanning Electron Microscope, HPSEM: High Pressure Scanning Electron Microscope, VPSEM: Variable Pressure Scanning Electron ... environmental scanning electron microscope, Scanning, 19, pp.(85-91) Gaseous Scanning Electron Microscope (GSEM): Applications and Improvement 15 Danilatos, G.D (1980) An atmospheric scanning electron ... literature such as ESEM, LVSEM, HPSEM, VPSEM, CPSEM But all these microscopes differ from CSEM by the capability to introduce the gas as environment unlike High vacuum in CSEM Indeed, all these...
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GIÁO TRÌNH KÍNH HIỂN VI ĐIỆN TỬ QUÉT (Scanning Electron Microscope)

GIÁO TRÌNH KÍNH HIỂN VI ĐIỆN TỬ QUÉT (Scanning Electron Microscope)

Vật lý

... Cuối sấy khô mẫu Kính hiển vi quét môi trường (Enviroment Scanning Electron Microscope – ESEM) khắc phục khó khăn xử lý mẫu SEM Với ESEM ta quan sát phân tích mẫu mà không cần xử lý: mẫu không ... SEM đơn giản nhiều so với TEM 2.2 Kính hiển vi điện tử quét (Scanning Electron Microscope, thường viết tắt SEM) : 2.2.1 Giới thiệu: SEM loại kính hiển vi điện tử tạo ảnh với độ phân giải cao bề ... với TEM cung cấp hình ảnh hai chiều, SEM cung cấp hình ảnh ba chiều, điều tạo nhiều thuận lợi cho nhà khoa học việc nghiên cứu mẫu vật Hơn nữa, việc chuẩn bị mẫu SEM đơn giản nhiều so với TEM...
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Scanning thermal microscopy methodology for accurate and reliable thermal measurement

Scanning thermal microscopy methodology for accurate and reliable thermal measurement

Y - Dược

... Microscopy PID Proportional-integral-derivative AFM Atomic Force Microscope LIA Lock-In Amplifier SPM Scanning Probe Microscope SFM Scanning Force Microscope STM Scanning Tunneling Microscope EOM Electro-optic ... the DUT In scanning thermal microscopy (SThM), an AFM- based system is preferred over an STM-based system as it allows for application on a variety of materials such as insulators, semiconductors ... electromigration (b) after electromigration (c) Temperature profile of (b) 18 Fig 2.3 Flow Chart of Various Scanning Thermal Microscopy System 22 Fig 2.4 (a) SEM of multi-function micro thermal cantilever,...
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Application of biased scanning probe microscopy techniques for multifunctional characterization of bifeo3 and zno thin films

Application of biased scanning probe microscopy techniques for multifunctional characterization of bifeo3 and zno thin films

Cao đẳng - Đại học

... potential future materials for advanced electronic applications Scanning probe microscopy techniques, Piezoresponse Force Microscopy (PFM) and Kelvin Probe Force Microscopy (KPFM) are used in this ... 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 Amplitude-Modulation Detection ... Piezoresponse Force Microscopy 18 2.1 Working Principle of Piezoresponse Force Microscopy 18 2.1.1 Experimental Setup 2.2 Theory of PFM 18 21 2.2.1 Capacitive forces 23 2.2.2 Electromechanical Forces...
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Nanostructure, biopiezoelectric and bioferroelectric behaviors of mollusk shells studied by scanning probe microscopy techniques

Nanostructure, biopiezoelectric and bioferroelectric behaviors of mollusk shells studied by scanning probe microscopy techniques

Cao đẳng - Đại học

... 20 2.3 Scanning Probe Microscopy 22 2.3.1 Atomic Force Microscopy (AFM) 23 2.3.2 Contact Resonance Force Microscopy (CR-FM) 24 2.3.3 Piezoresponse Force Microscopy (PFM) ... of Scanning Probe Microscopy technique, in which cantilever oscillates mechanically to detect the topography and surface properties AFM Atomic Force Microscopy AM -AFM Amplitude Modulated Atomic ... SPM consists of many operational modes, for instance, Atomic Force Microscopy (AFM) , Kelvin Probe Force Microscopy (KPFM), Magnetic Force Microscopy (MFM), and many more Local topographic, Chapter...
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lectron energy spectrometers for the scanning electron microscope

lectron energy spectrometers for the scanning electron microscope

Cao đẳng - Đại học

... develop electron energy spectrometers for the scanning electron microscope (SEM) At present, the detection systems of conventional SEMs are not generally designed to capture the energy spectrum of electrons ... distance SE Secondary electron BSE Backscattered electron AE Auger electron η Backscattered yield coefficient δ Secondary electron yield YA Auger electron yield np Number of primary electrons SNR Signal-to-noise ... potential distributions using the scanning electron microscope”, Scanning Electron Microscopy (1970) 465-470 1.36 A Gopinath, A “Estimate of minimum measurable voltage in the SEM , Journal of Physcis...
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Spectrometer attachments for the scanning electron microscope

Spectrometer attachments for the scanning electron microscope

Thạc sĩ - Cao học

... enlarged image of the sample [1.1-1.2] Scanning electron microscopes (SEMs), transmission electron microscopes (TEMs), and scanning transmission electron microscopes (STEMs) have been commercially available ... their samples to TEM/ STEM analysis 1.1.1 The Scanning Electron Microscope The schematic in figure 1.1 shows a typical SEM setup It consists of an electron gun unit, a vacuum-sealed electron optical ... possibility of carrying out Electron Energy Loss Spectroscopy (EELS) within the SEM is examined, which is normally only performed with transmission electron microscopes (TEM/ STEM) Secondly, the possibility...
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Two dimensional molecular self assemblies on surfaces studied by low temperature scanning tunneling microscopy

Two dimensional molecular self assemblies on surfaces studied by low temperature scanning tunneling microscopy

Thạc sĩ - Cao học

... Two-Dimensional Low Temperature Scanning Tunneling Microscopy STS Scanning Tunneling Spectroscopy MBE Molecular Beam Epitaxy FIM Field Ion Microscopy AFM Atomic Force Microscope SEM Scanning Electron Microscopy ... Scanning Electron Microscopy TEM Transmission Electron Microscopy NFSOM Near-Field Scanning Optical Microscopy LEEM Low-Energy Electron Microscopy PEEM Photoemission Electron Microscopy UHV Ultra-High ... microscopy (SEM) , transmission electron microscopy (TEM) , near-field scanning optical microscopy (NFSOM), low-energy electron microscopy (LEEM), and photoemission electron microscopy (PEEM) The...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 1

Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 1

Cao đẳng - Đại học

... -conjugated systems The strength of the interaction rises as the number of -electrons increases It is usually slightly stronger than other noncovalent bondings including van der Waals forces, or ... (Fig 1.3) Fig 1.3 Schematic of an n-dodecanethiolate monolayer self-assembled on an atomically flat gold substrate [14] The assembly is held together by the bonds between the sulfur headgroups and ... and substrates will not involve fairly intricate processes 1.2 Self-Assembled Monolayers (SAMs) The concept of the self-assembled monolayers (SAMs) is primarily introduced by Zisman in 1946 [12,...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 2

Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 2

Cao đẳng - Đại học

... constructing atomic or molecular scale devices 2.1.1 Principle of the Scanning Tunneling Microscopy (STM) Scanning tunneling microscope (STM) is a powerful technique for viewing surfaces at the atomic ... kcal/mol/Å In the dynamics calculation the temperature was set at room temperature 298K 29 EXPERIMENTAL References [1] Wiesendanger, R Scanning Probe Microscopy and Spectroscopy Methods and applications, ... arbitrary molecular and periodic systems using classical mechanics It offers support for the COMPASS, UFF, and Dreiding forcefields With this wide range of forcefields, Forcite can handle essentially...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 3

Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 3

Cao đẳng - Đại học

... voltages, electronic frequency generation, microbalance, and ultra fine focusing of optical assemblies It is also the basis of operation of the scanning probe microscope, such as STM and AFM Scanner ... stability for atomic scans Based on the previous method developed by the manufacturer, we developed a relatively simple methodology to perform calibration of the “A” scanner for scanning tunneling ... (~12Hz) 42 CALIBRATION for atomic scale images to reduce some of the noise due to thermal drift The condition of the tip is critical for obtaining a good STM image with atomic resolution Fig 3.2...
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