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Relevant bibliographies by topics / Field Emission Scanning Electron Microscopy (FESEM)

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Academic literature on the topic 'Field Emission Scanning Electron Microscopy (FESEM)'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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Journal articles on the topic "Field Emission Scanning Electron Microscopy (FESEM)"

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Gao, Ma, Huang, Hua, and Lan. "Deep Learning for Super-Resolution in a Field Emission Scanning Electron Microscope." AI 1, no. 1 (October 15, 2019): 1–9. http://dx.doi.org/10.3390/ai1010001.

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A field emission scanning electron microscope (FESEM) is a complex scanning electron microscope with ultra-high-resolution image scanning, instant printing, and output storage capabilities. FESEMs have been widely used in fields such as materials science, biology, and medical science. However, owing to the balance between resolution and field of view (FOV), when locating a target using an FESEM, it is difficult to view specific details in an image with a large FOV and high resolution simultaneously. This paper presents a deep neural network to realize super-resolution of an FESEM image. This technology can effectively improve the resolution of the acquired image without changing the physical structure of the FESEM, thus resolving the constraint problem between the resolution and FOV. Experimental results show that the apply of a deep neural network only requires a single image acquired by an FESEM to be the input. A higher resolution image with a large FOV and excellent noise reduction is obtained within a short period of time. To verify the effect of the model numerically, we evaluated the image quality by using the peak signal-to-noise ratio value and structural similarity index value, which can reach 26.88 dB and 0.7740, respectively. We believe that this technology will improve the quality of FESEM imaging and be of significance in various application fields.

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Brostin, J. "Scanning probe microscopy of polymers in the field emission SEM." Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 876–77. http://dx.doi.org/10.1017/s0424820100166841.

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The field emission SEM (FESEM) is well suited for imaging polymer and other non-conductive surfaces. High resolution SEM images can be obtained without the application of a conductive coating when operated at low accelerating voltages. Compositional imaging in the backscattered electron mode is facilitated at low voltages by the incorporation of a microchannel plate (MCP) detector. The MCP equipped FESEM has been shown to be phenomenally sensitive to very small differences in average atomic number. Compositional contrasts are achieved in polymer and other low-Z composites that differ only in oxygen content. Those systems that completely lack intrinsic contrast can be differentially stained with ruthenium tetroxide vapors.These capabilities make the FESEM an ideal platform for locating phases and/or subtle features for scanning probe microscopy (SPM). Transparent, thin coatings or very fine, heterogeneously dispersed structures that cannot be readily located or observed with conventional light optics can generally be seen in the FESEM.

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Muhammad Safwan, M., Hui Lin Ong, and Hazizan Md Akil. "Crystallinity and Morphological of Cellulose Extraction from Elaeis guineensis Jacquin Frond." Materials Science Forum 819 (June 2015): 251–55. http://dx.doi.org/10.4028/www.scientific.net/msf.819.251.

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The work described in this paper is the extraction of microcrystalline cellulose from Elaeis Guineensis Jacquin Frond using alkaline and bleaching treatment. Microcrystalline cellulose extracted has been characterized by X-Ray Diffraction (XRD) and Field Emission Scanning Electron Microscopy (FESEM). Morphological investigation of fibers was performed using field emission scanning electron microscopy (FESEM) where rod like fiber can be observed. Crystallinity of cellulose extracted was found higher than raw material.

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Chen, R. T., and M. G. Jamieson. "Advances in microscopy of polymers: A FESEM and STM study." Proceedings, annual meeting, Electron Microscopy Society of America 49 (August 1991): 1042–43. http://dx.doi.org/10.1017/s0424820100089524.

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Microscopy has played a major role in establishing structure-process-property relationships in the research and development of polymeric materials. With advances in electron microscopy instrumentation (e.g., field emission SEM - FESEM) and the invention of new scanning probe microscopes (e.g., scanning tunneling microscope - STM), resolution of structures or morphologies down to the nanometer scale can be achieved with ease. This paper will focus on the application of FESEM and STM in order to understand the structure of commercial polymeric materials. Characterization of polymers using other microscopy techniques such as TEM, thermal optical microscopy and atomic force microscopy (AFM) will also be discussed.The polymeric materials evaluated in this study include membranes, liquid crystalline polymer (LCP) fibers, multiphase polymer blends and polymer films or coatings. In order to minimize beam damage and maximize contrast for surface detail in beam sensitive polymers, low voltage SEM (LVSEM) was performed on a JEOL 840F field emission SEM.

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Dar, M. A., S. G. Ansari, Rizwan Wahab, Young Soon Kim, and Hyung Shik Shin. "The Synthesis of Maghemite and Hematite (_γ-Fe₂O₃, α-Fe₂O₃) Nanospheres." Materials Science Forum 534-536 (January 2007): 157–60. http://dx.doi.org/10.4028/www.scientific.net/msf.534-536.157.

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Maghemite and hematite nanospheres were synthesized by using the Sol-gel technique. The structural properties of these nanosphere powders were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM),and pore size distribution.Hematite phase shows crystalline structures.The mean particle size that resulted from BET and XRD analyses were 4.9 nm and 2 nm. The field emission scanning electron microscopy shows iron-oxide powder is composed of nanosized particles, but in nanosized aggregates (agglomeration of particles). It can be seen from transmission electron microscopy that the size of the particles are very small which is in good agreement with the FESEM and the Xray diffraction. TEM and FESEM confirmed that the iron-oxide powder is composed of sizes from 8 nm to 10 nm. The BET and pore size method were employed for specific surface area determination.

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Castejón, O. J., R. P. Apkarian, and H. V. Castejón. "Field Emission Scanning Electron Microscopy Of Mouse Cerebellar Synaptic Contacts." Microscopy and Microanalysis 6, S2 (August 2000): 844–45. http://dx.doi.org/10.1017/s1431927600036710.

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Samples of albino mice cerebellar cortex were processed by the cryofracture method for scanning electron microscopy and examined with the field emission scanning electron microscope (FESEM). Albino mouse cerebellar cortex was excised, cut into 1-2 mm slices and inmersed in 4% glutaraldehyde in O. l M phosphate buffer solution, pH 7.4, for 24h at 4°C; and postfixed for 1 h in a similarly buffered 1% osmium tetroxide solution. Specimens were dehydrated in a graded serie of ethanol (30, 50, 70, 80, 90 2x100%) prior to wrapping individual tissue pieces in preformed absolute ethanol filled parafilm cryofracture packets. Rapid freezing of packets was performed by plunging into LN2. First, the packet was transferred from the LN2 storage vessel with LNT chilled forceps in order to avoid themial damage. Secondly, the cooled fracture blade was removed from the LN2, the packet was orientated under the blade, and immediately struck with a heavy tool.

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Saurdi, I., Mohamad Hafiz Mamat, and Mohamad Rusop. "Physical Properties of Nano-Structured Zinc Oxide Thin Films Deposited by Radio-Frequency Magnetron Sputtering." Advanced Materials Research 667 (March 2013): 495–500. http://dx.doi.org/10.4028/www.scientific.net/amr.667.495.

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In this work, ZnO thin films were deposited by RF Magnetron sputtering at different substrate temperatures in the range of 100-400oC on glass substrate. The thin films were characterized using field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), and I-V measurement, for morphology and electrical properties study. Field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM) were used to study the structural and morphology of the thin films. The particle size varied from 41nm to 146nm showing that the nucleation of ZnO thin films as the substrate temperatures increased. Higher particle size was observed as the substrate temperatures increased up to 400oC as well as high conductivity of thin films at 400oC.

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Zemke, Valentina, Volker Haag, and Gerald Koch. "Wood identification of charcoal with 3D-reflected light microscopy." IAWA Journal 41, no. 4 (September 11, 2020): 478–89. http://dx.doi.org/10.1163/22941932-bja10033.

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Abstract The present study focusses on the application of 3D-reflected light microscopy (3D-RLM) for the wood anatomical identification of charcoal specimens produced from domestic and tropical timbers. This special microscopic technique offers a detailed investigation of anatomical features in charcoal directly compared with the quality of field emission scanning electron microscopy (FESEM). The advantages of using the 3D-RLM technology are that fresh fracture planes of charcoal can be directly observed under the microscope without further preparation or surface treatment. Furthermore, the 3D-technique with integrated polarized light illumination creates high-contrast images of uneven and black charcoal surfaces. Important diagnostic structural features such as septate fibres and intercellular canals can be clearly detected and intervessel pits are directly measured. The comparison of the microscopic analyses reveals that 3D-reflected light microscopy (3D-RLM) provides an effective alternative technique to conventional field emission scanning electron microscopy for the identification of carbonized wood.

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Reichelt, Rudolf, Thomas Schmidt, Dirk Kuckling, and Karl-Friedrich Arndt. "Structural characterization of temperature-sensitive hydrogels by field emission scanning electron microscopy(FESEM)." Macromolecular Symposia 210, no. 1 (March 2004): 501–11. http://dx.doi.org/10.1002/masy.200450656.

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Cosandey, F., L. Zhang, and T. E. Madey. "High Resolution Fesem Study of Au Particle Growth on TiO2." Microscopy and Microanalysis 3, S2 (August 1997): 405–6. http://dx.doi.org/10.1017/s1431927600008916.

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Transition metals supported on oxides have important catalytic properties and are also used in chemical gas sensors for increasing sensitivity and selectivity. In order to understand growth and reactivity in the Au/TiO2 system, we have performed surface studies on a model system consisting of ultrathin, discontinuous Au films on TiO2 (110) single crystals. In this paper we are presenting results obtained by high resolution scanning electron microscopy (HRSEM) on the effects of substrate temperature and average Au thickness on particle size, density and coverage.The TiO2 (110) single crystal surfaces used in this study were prepared in UHV using surface science tools followed by in-situ Au deposition for different substrate temperatures and for various film thicknesses. After deposition, the samples were transferred in air to the Field Emission Scanning Electron microscope (LEO 982 Gemini) for high resolution imaging.Typical high resolution scanning electron microscopy (HRSEM) images of Au films deposited at 300 K are shown in Fig. 1 for two film thicknesses of 0.22 and 1.0 nm.

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Dissertations / Theses on the topic "Field Emission Scanning Electron Microscopy (FESEM)"

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Chen, Li. "Fabrication of electron sources for a miniature scanning electron microscope." Thesis, University of York, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313904.

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Lagotzky, Stefan, Roman Barday, Andreas Jankowiak, Thorsten Kamps, Carola Klimm, Jens Knobloch, Günter Müller, Boris Senkovsky, and Frank Siewert. "Prevention of electron field emission from molybdenum substrates for photocathodes by the native oxide layer." Cambridge University Press, 2015. https://tud.qucosa.de/id/qucosa%3A39022.

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Comprehensive investigations of the electron field emission (FE) properties of annealed single crystal and polycrystalline molybdenum plugs, which are used as substrates for actual alkali-based photocathodes were performed with a FE scanning microscope. Well-polished and dry-ice cleaned Mo samples with native oxide did not show parasitic FE up to a field level of 50 MV/m required for photoinjector cavities. In situ heat treatments (HT) above 400°C, which are usual before photocathode deposition, activated field emission at lower field strength. Oxygen loading into the Mo surface, however, partially weakened these emitters. X-ray photoelectron spectroscopy of comparable Mo samples showed the dissolution of the native oxide during such heat treatments. These results reveal the suppression of field emission by native Mo oxides. Possible improvements for the photocathode preparation will be discussed.

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Collins, Clare Melissa. "Ordered nanomaterials for electron field emission." Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/270357.

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In the quest for reliable, repeatable and stable field electron emission that has commercial potential, whilst many attempts have been made, none yet has been truly distinguishable as being successful. Whilst I do not claim within this thesis to have uncovered the secret to success, fundamental issues have been addressed that concern the future directions towards achieving its full potential. An exhaustive comparison is made across the diverse range of materials that have, over the past 40-50 years, been postulated and indeed tested as field emitters. This has not previously been attempted. The materials are assessed according to the important metrics of turn on voltage, Eon, and maximum current density, Jmax, where low Eon and high Jmax are seen as desirable. The nano-carbons, carbon nanotubes (CNTs), in particular, perform well in both these metrics. No dependency was seen between the material work function and its performance as an emitter, which might have been suggested by the Fowler Nordheim equations. To address the issues underlying the definition of the local enhancement factor, β, a number of variations of surface geometry using CNTs were fabricated. The field emission of these emitters was measured using two different approaches. The first is a Scanning Electrode Field Emission Microscope, SAFEM, which maps the emission at individual locations across the surface of the emitter, and the parallel plate that is more commonly encountered in field emission measurements. Finally, an observed hysteretic behaviour in CNT field emission was explored. The field emitters were subjected to a number of tests. These included; in-situ residual gas analysis of the gas species in the emitter environment, a stability study in which the emitters were exposed to a continuing voltage loop for 50 cycles, differing applied voltage times to analyse the effects on the emitted current, and varying maximums of applied field in a search for hysteresis onset information. These studies revealed the candidate in causing the hysteresis is likely to be water vapour that adsorbs on the CNT surface. A six step model if the emission process was made that details how and when the hysteresis is caused.

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SILVA, ANDRESSA A. da. "Síntese e estabilização de nanopartículas de ouro para fins biotecnológicos e cosméticos." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/27503.

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Submitted by Marco Antonio Oliveira da Silva (maosilva@ipen.br) on 2017-05-25T13:39:09Z No. of bitstreams: 0
Made available in DSpace on 2017-05-25T13:39:09Z (GMT). No. of bitstreams: 0
As sínteses de nanopartículas de ouro (AuNPs) com os agentes redutores e estabilizantes citrato de sódio e goma arábica bem como sua caracterização foram estudadas neste trabalho. As sínteses foram realizadas por meio de aquecimento e uso de radiação gama em fonte de 60Co nas doses 1, 7,5 e 15 kGy. Neste contexto, foram estudadas as propriedades e a estabilidade das AuNPs formadas por meio de técnicas de caracterização tais como espectroscopia de absorção UV-Vis, verificando as bandas características das AuNPs assim como a estabilidade física das mesmas. As amostras sintetizadas com citrato de sódio (AuCit) apresentaram comprimentos de onda que variaram entre 520 e 525 nm e as amostras sintetizadas com goma arábica (AuGA) apresentaram comprimentos de onda entre 530 e 540 nm. A análise de espalhamento de luz dinâmica, do inglês \"Dynamic Light Scattering\" (DLS) foi utilizada para determinar o tamanho hidrodinâmico das nanopartículas formadas no período de três meses, demonstrando que as amostras AuCit apresentaram tamanhos hidrodinâmicos médios que variaram de 20 a 50 nm enquanto que as amostras AuGA sintetizadas por aquecimento e com uso de radiação gama apresentaram tamanhos hidrodinâmicos médios que variaram de 50 a 115 nm. As análises de microscopia eletrônica de varredura com emissão de campo (MEV-FEG) e microscopia eletrônica de transmissão (MET) foram utilizadas para determinar a distribuição real de tamanhos das nanopartículas e sua forma geométrica. Nesta caracterização as AuGA apresentaram diâmetros menores do que os analisados por DLS, sugerindo assim possível encapsulamento das AuNPs.
Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP

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EIBLOVÁ, Veronika. "Možnosti využití nanočástic různých kovů jako markerů pro imunoznačení ve skenovacím mikroskopu s autoemisní tryskou." Master's thesis, 2011. http://www.nusl.cz/ntk/nusl-52434.

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Nowadays, electron microscopy is a widespread method used in many biological branches like medicine, physical science, mikrobiology or material technology. Scanning electron microscope is a type of an electron microscope that shows the sample surface by scanning it with a high-energy beam of electrons in a raster scan pattern. The signal of electrons reveals information about the sample such as morphology, chemical composition and structure and materials. Gold nanoparticles are widely used as a marker for immunolabeling in these days. The main point of this research was to find other nanoparticles, which can be used for multiple immunolabeling. The main task of this study is to conjugate these particles with atibodies, to use them for immunolocalisation on the convenient biological sample and to observe it in FESEM JEOL JSM-7401F.

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Guettler, Barbara Elisabeth. "Effect of Thermal and Chemical Treatment of Soy Flour on Soy-Polypropylene Composite Properties." Thesis, 2012. http://hdl.handle.net/10012/6702.

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Soy flour (SF), a by-product of the soybean oil extraction processing, was investigated for its application in soy-polypropylene composites for interior automotive applications. The emphasis of this work was the understanding of this new type of filler material and the contribution of its major constituents to its thermal stability and impact properties. For this reason, reference materials were selected to represent the protein (soy protein isolate (SPI)) and carbohydrate (soy hulls (SH)) constituents of the soy flour. Additional materials were also investigated: the residue obtained after the protein removal from the soy flour which was called insoluble soy (IS), and the remaining liquid solution after acid precipitation of the proteins, containing mostly sugars and minerals, which was called soluble sugar extract (SSE). Two treatments, potassium permanganate and autoclave, were analyzed for their potential to modify the properties of the soy composite materials. An acid treatment with sulfuric acid conducted on soy flour was also considered. The soy materials were studied by thermogravimetric analysis (TGA) under isothermal (in air) and dynamic (in nitrogen) conditions. SPI had the highest thermal stability and SSE the lowest thermal stability for the early stage of the heating process. Those two materials had the highest amount of residual mass at the end of the dynamic TGA in nitrogen. The two treatments showed minimal effect on the isothermal thermal stability of the soy materials at 200 ??C. A minor improvement was observed for the autoclave treated soy materials. Fourier transformed infrared (FTIR) spectroscopy indicated that the chemical surface composition differed according to type of the soy materials but no difference could be observed for the treatments within one type of soy material. Contact angle analysis and surface energy estimation indicated differences of the surface hydrophobicity of the soy materials according to type of material and treatment. The initial water contact angle ranged from 57 ?? for SF to 85 ?? for SH. The rate of water absorption increased dramatically after the autoclave treatment for IS and SPI. Both materials showed the highest increase in the polar surface energy fraction. In general, the major change of the surface energy was associated with change of the polar fraction. After KMnO4 treatment, the polar surface energy of SF, IS and SPI decreased while SH showed a slight increase after KMnO4 treatment. A relationship between protein content and polar surface energy was observed and seen to be more pronounced when high protein containing soy materials were treated with KMnO4 and autoclave. Based on the polar surface energy results, the most suitable soy materials for polypropylene compounding are SPI (KMnO4), SH, and IS (KMnO4) because their polar surface energy are the lowest which should make them more compatible with non-polar polymers such as polypropylene. The soy materials were compounded as 30 wt-% material loading with an injection moulding grade polypropylene blend for different combinations of soy material treatment and coupling agents. Notched Izod impact and flexural strength as well as flexural modulus estimates indicated that the mechanical properties of the autoclaved SF decreased when compared to untreated soy flour while the potassium permanganate treated SF improved in impact and flexural properties. Combinations of the two treatments and two selected (maleic anhydride grafted polypropylene) coupling agents showed improved impact and flexural properties for the autoclaved soy flour but decreased properties for the potassium permanganate treated soy flour. Scanning electron microscopy of the fractured section, obtained after impact testing of the composite material, revealed different crack propagation mechanisms for the treated SF. Autoclaved SF had a poor interface with large gaps between the material and the polypropylene matrix. After the addition of a maleic anhydride coupling agent to the autoclaved SF and polypropylene formulation, the SF was fully embedded in the polymer matrix. Potassium permanganate treated SF showed partial bonding between the material and the polymer matrix but some of the material showed poor bonding to the matrix. The acid treated SF showed cracks through the dispersed phase and completely broken components that did not bind to the polypropylene matrix. In conclusion, the two most promising soy materials in terms of impact and flexural properties improvement of soy polypropylene composites were potassium permanganate treated SF and the autoclaved SF combined with maleic anhydride coupling agent formulation.

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Books on the topic "Field Emission Scanning Electron Microscopy (FESEM)"

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Brodusch, Nicolas, Hendrix Demers, and Raynald Gauvin. Field Emission Scanning Electron Microscopy. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-4433-5.

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Fleck, Roland A., and Bruno M. Humbel. Biological Field Emission Scanning Electron Microscopy. Chichester, UK: John Wiley & Sons, Ltd, 2019. http://dx.doi.org/10.1002/9781118663233.

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Fleck, Roland A., and Bruno M. Humbel. Biological Field Emission Scanning Electron Microscopy. Wiley & Sons, Incorporated, John, 2019.

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Fleck, Roland A., and Bruno M. Humbel. Biological Field Emission Scanning Electron Microscopy. Wiley & Sons, Limited, John, 2019.

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(Editor), Heide Schatten, and James B. Pawley (Editor), eds. Biological Low-Voltage Scanning Electron Microscopy. Springer, 2007.

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Brodusch, Nicolas, Hendrix Demers, and Raynald Gauvin. Field Emission Scanning Electron Microscopy: New Perspectives for Materials Characterization. Springer, 2017.

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Book chapters on the topic "Field Emission Scanning Electron Microscopy (FESEM)"

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Forge, Andrew, Anwen Bullen, and Ruth Taylor. "FESEM in the Examination of Mammalian Cells and Tissues." In Biological Field Emission Scanning Electron Microscopy, 299–309. Chichester, UK: John Wiley & Sons, Ltd, 2019. http://dx.doi.org/10.1002/9781118663233.ch13.

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Walther, Paul. "Cryo-FEGSEM in Biology." In Biological Field Emission Scanning Electron Microscopy, 397–414. Chichester, UK: John Wiley & Sons, Ltd, 2019. http://dx.doi.org/10.1002/9781118663233.ch18.

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Warley, Alice, and Jeremy N. Skepper. "Element Analysis in the FEGSEM: Application and Limitations for Biological Systems." In Biological Field Emission Scanning Electron Microscopy, 589–609. Chichester, UK: John Wiley & Sons, Ltd, 2019. http://dx.doi.org/10.1002/9781118663233.ch28.

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Reimer, Rudolph, Dennis Eggert, and Heinrich Hohenberg. "Environmental Scanning Electron Microscopy." In Biological Field Emission Scanning Electron Microscopy, 439–59. Chichester, UK: John Wiley & Sons, Ltd, 2019. http://dx.doi.org/10.1002/9781118663233.ch20.

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Brodusch, Nicolas, Hendrix Demers, and Raynald Gauvin. "Introduction." In Field Emission Scanning Electron Microscopy, 1–4. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4433-5_1.

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Brodusch, Nicolas, Hendrix Demers, and Raynald Gauvin. "Advanced Specimen Preparation." In Field Emission Scanning Electron Microscopy, 115–28. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4433-5_10.

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Brodusch, Nicolas, Hendrix Demers, and Raynald Gauvin. "Conclusion and Perspectives." In Field Emission Scanning Electron Microscopy, 129–31. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4433-5_11.

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Brodusch, Nicolas, Hendrix Demers, and Raynald Gauvin. "Developments in Field Emission Gun Technologies and Advanced Detection Systems." In Field Emission Scanning Electron Microscopy, 5–12. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4433-5_2.

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Brodusch, Nicolas, Hendrix Demers, and Raynald Gauvin. "Electron Detection Strategies for High Resolution Imaging: Deceleration and Energy Filtration." In Field Emission Scanning Electron Microscopy, 13–35. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4433-5_3.

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Brodusch, Nicolas, Hendrix Demers, and Raynald Gauvin. "Low Voltage SEM." In Field Emission Scanning Electron Microscopy, 37–46. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4433-5_4.

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Conference papers on the topic "Field Emission Scanning Electron Microscopy (FESEM)"

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Zhang, Jianan, and Mark P. S. Krekeler. "FIELD EMISSION SCANNING ELECTRON MICROSCOPY (FESEM) INVESTIGATION OF MACROCRYSTALLINE GOLD FROM EXCELSIOR MOUNTAINS IN NEVADA." In 50th Annual GSA North-Central Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016nc-275061.

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Vangala, Sunitha, Matthew Dietrich, Michelle Burke, Amy Wolfe, Erin P. Argyilan, and Mark P. S. Krekeler. "A PRELIMINARY FIELD EMISSION SCANNING ELECTRON MICROSCOPY (FESEM) AND TRANSMISSION ELECTRON MICROSCOPY (TEM) FORAY INTO STREET SEDIMENTS OF GARY, INDIANA: MAJOR ENVIRONMENTAL HEALTH CONCERNS ARE EVIDENT." In Joint 52nd Northeastern Annual Section and 51st North-Central Annual GSA Section Meeting - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017ne-290614.

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Mack, W., B. Seidl, R. Fischer, T. Ort, J. Walter, J. Grünewald, L. Berthold, and M. Petzold. "Ion Beam Polishing for Embedded Cross-Sections and Its Advantages for FESEM Analysis in Electronic Packaging." In ISTFA 2004. ASM International, 2004. http://dx.doi.org/10.31399/asm.cp.istfa2004p0338.

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Abstract Microstructural diagnostics for electronic packaging development and failure analysis under industrial manufacturing conditions require fast but reliable preparation routines which result in samples of high quality without preparation artefacts. The aim of the presented paper is to introduce a time- and cost efficient ion beam-based preparation procedure for high resolution Field Emission- Scanning Electron Microscopy (FESEM) analysis for packaging components. In particular, the considerable advantages of the proposed method compared to standard metallographic approaches will be demonstrated by discussing results of typical failure analysis examples as a function of the preparation procedure.

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Seidl, B., J. Walter, and M. Kirchberger. "Bevel Etching: A Low Cost Alternative to FIB." In ISTFA 2007. ASM International, 2007. http://dx.doi.org/10.31399/asm.cp.istfa2007p0180.

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Abstract Microstructural diagnostic for electronic packaging development and failure analysis under industrial manufacturing conditions require fast but reliable preparation routines. The aim of the presented poster is to introduce a time and cost efficient preparation technique for FESEM (field emission scanning electron microscope) investigations with focus on typical issues in electronic packaging development and failure analysis. The new ion beam based technique acts as a low cost alternative to FIB, able to prepare much wider section areas, combined in a tool, which can also be used for standard ion beam polishing processes.

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Taylor, Mack, and Mark P. S. Krekeler. "A FIELD EMISSION SCANNING ELECTRON MICROSCOPY (FESEM) INVESTIGATION OF THE TEXTURE AND MINERALOGY OF MACROCRYSTALLINE GOLD FROM TYPE 4 ORE FROM ROUND MOUNTAIN, NEVADA." In 50th Annual GSA North-Central Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016nc-275022.

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Neidich, Kory, and Mark P. S. Krekeler. "FIELD EMISSION SCANNING ELECTRON MICROSCOPY (FESEM) OF A SPINEL LAW TWINNED GOLD CRYSTAL FROM EUGENE MOUNTAIN, NEVADA: EVIDENCE FOR GROWTH COMPLEXITY AND CHEMICAL TREATMENT." In 50th Annual GSA North-Central Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016nc-275063.

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Sezer, Nurettin, Adnan Ali, Muataz A. Atieh, and Muammer Koc. "Synthesis and Characterization of Graphene/Zinc Oxide Nanocomposites." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71291.

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This study investigates the synthesis and characterization of graphene/zinc oxide nanocomposites. Wet impregnation method was employed for the synthesis. Firstly, graphene nanoplatelets and zinc nitrate hexahydrate were concurrently dispersed in ethanol and subjected to sonication for 1 h. Then, the dispersion was put in a furnace at 70 °C overnight. The paste was then collected and heated further up to 400 °C in air for a duration of 4 h. The process was proceeded to yield insoluble nanocomposites. The synthesis was followed by characterization of the nanocomposite samples by Field Emission Scanning Electron Microscopy (FESEM), X-Ray Diffraction (XRD) and Thermal Gravimetric Analysis (TGA). The XRD pattern revealed the presence of ZnO crystals and graphene. The FESEM images showed that ZnO crystals with average particle size of 30 nm are uniformly distributed on graphene surfaces. According to the TGA result, the content of nanocomposites is in good agreement with the materials used during synthesis.

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Li, Xianfei, Ping Wu, Hui Wang, Yili Pei, Sen Chen, and Shiping Zhang. "Dielectric Properties of Er-Doped HfTiO Films for High-K Gate Stacks." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-65098.

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HfTiErO and HfTiO thin films (∼50nm), as potential replacements for traditional SiO2 gate dielectric materials, were prepared on n-Si (100) substrates by radio frequency magnetron sputtering. The dielectric characteristics of HfTiErO were compared with those of HfTiO. The structure of HfTiErO was analyzed by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The growth of HfTiErO and HfTiO were observed by field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM). Experimental results indicate that as the Er content increases, the dielectric constant (k) can increase to the maximum (∼20.2) and then decrease. In comparison with HfTiO, HfTiErO films (the atomic ratio of Hf:Ti:Er was 1:0.16:0.10) can exhibit a higher relative permittivity (increasing by 54% compared with HfTiO), a smoother interface, a better surface microscopy and a lower interface trap density in C-V curves.

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Uddin, M. Jasim, Glenn Grissom, Miguel Leal, Veronica Galvez, Tarek Trad, Ahmed Touhami, Nazmul Islam, Jason Parsons, and H. Justin Moore. "Self-Aligned Carbon Nanotube Yarns for Multifunctional Optoelectronic Applications." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-67441.

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In this work, the morphology and electrocatalytic features of carbon nanotube yarns at the structural level allow for enhanced photoconversion efficiency. The energy conversion of electron-hole pairs within the carbon nanotube yarn (CNY) due to the functionalization with nanostructured photoactive TiO2 phases is remarkable. A well oriented anatase TiO2 thin layer (approximately 100 nm) forms at the interfaces of CNY and TiO2 mesoporous film when the sample is precoated and annealed at 350°C. Field Emission Scanning Electron Microscopy (FESEM) images show the integrity and homogeneity of the TiO2 surface, which is indicative of the overall durability of the CNY-based dye sensitized solar cell (DSSC); Coating TiO2 on self-aligned carbon nanotube yarns provides several benefits from their high chemical stability, excellent functionality, nontoxicity and relatively low cost. The maximum photon to current conversion efficiency (ηAM1.5) achieved was 3.1%.

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Chung, Koo-Hyun, and Dae-Eun Kim. "Wear Characteristics of Atomic Force Microscope Probe Tips." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63783.

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In the field of nanotechnology, Atomic Force Microscope (AFM) which is based on the interactions between an extremely sharp probe tip and specimen, has been widely utilized. In the AFM and AFM-based applications, the probe tip wear problem should be carefully considered. In this work, the wear characteristics of silicon, silicon nitride, and diamond coated probe tip under light loads were investigated. In order to identify the structure of the AFM probe tips as well as the nature of wear, High-Resolution Transmission Electron Microscope (HRTEM) and Field Emission Scanning Electron Microscope (FESEM) analyses were utilized. Using the Archard’s wear equation, the degree of the probe tip wear was quantitatively assessed. Based on the experimental results and analysis, the plausible wear mechanisms of the AFM probe tips were proposed in an effort to understand the nano-scale wear.

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Reports on the topic "Field Emission Scanning Electron Microscopy (FESEM)"

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Zhai, Tongguang, Chi-Sing Man, and James Morris. Field Emission Gun Scanning Electron Microscopy with Electron Back Scatter Diffraction for Texture, Formability and Fatigue Studies of Advanced Materials. Fort Belvoir, VA: Defense Technical Information Center, May 2007. http://dx.doi.org/10.21236/ada484492.

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