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3,375 Newest Publications about the topic microscopes

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A systematic investigation of the charging effect in scanning electron microscopy for metal nanostructures on insulating substrates

02-Dec-2016 | R. FLATABØ, A. COSTE, M. M. GREVE, Journal of Microscopy, 2016

Summary Scanning electron microscopy is perhaps the most important method for investigating and characterizing nanostructures. A well‐known challenge in scanning electron microscopy is the investigation of insulating materials. As insulating materials do not provide a path to ground they ...

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CuI heterogenized on thiosemicarbazide modified‐multi walled carbon nanotubes (thiosemicarbazide‐MWCNTs‐CuI): Novel heterogeneous and reusable nanocatalyst in the C‐N Ullmann coupling reactions

02-Dec-2016 | Hojat Veisi, Yalda Metghalchi, Malak Hekmati, Shiva Samadzadeh, Applied Organometallic Chemistry, 2016

Herein we described the synthesis of novel thiosemicarbazide‐MWCNTs‐CuI nanocatalyst by covalent grafting of thiosemicarbazide on carbon nanotubes surface and subsequent coordination with CuI catalyst. The formation of nanocatalyst was analyzed by Raman spectroscopy, energy dispersive ...

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Photonics: Nanolasers for precision imaging

17-Nov-2016 | Nature, 2016

Photonics: Nanolasers for precision imaging Nature 539, 7629 (2016). doi:10.1038/539332b Researchers have turned nanowires into tiny lasers that could one day be used in high-resolution microscopy.The resolution of optical microscopes is ...

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Materials, Vol. 9, Pages 927: ZnO-Layered Double Hydroxide@Graphitic Carbon Nitride Composite for Consecutive Adsorption and Photodegradation of Dyes under UV and Visible Lights

15-Nov-2016 | Zhang, Luhong ; Li, Li ; Sun, Xiaoming ; Liu, Peng ; Yang, Dongfang ; Zhao, Xiusong, Materials, 2016

In this work, a ZnO-layered double hydroxide@graphitic carbon nitride composite (ZnO-LDH@C3N4) was synthesized via co-precipitation method with solvothermal treatment. The structure and morphology of ZnO-LDH@C3N4 composite were characterized using X-ray diffraction (XRD), Fourier transform ...

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Atomically Thin Graphene Windows That Enable High Contrast Electron Microscopy without a Specimen Vacuum Chamber

15-Nov-2016 | Yimo Han; Kayla X. Nguyen; Yui Ogawa; Jiwoong Park; David A. Muller, Nano Letters, 2016

Scanning electron microscopes (SEMs) require a high vacuum environment to generate and shape an electron beam for imaging; however, the vacuum conditions greatly limit the nature of specimens that can be examined. From a purely scattering physics perspective, it is not necessary to place the ...

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Tomography of a Probe Potential Using Atomic Sensors on Graphene

10-Nov-2016 | Jonathan Wyrick; Fabian D. Natterer; Yue Zhao; Kenji Watanabe; Takashi Taniguchi; William G. Cullen; Nikolai B. Zhit ..., ACS Nano, 2016

Our ability to access and explore the quantum world has been greatly advanced by the power of atomic manipulation and local spectroscopy with scanning tunneling and atomic force microscopes, where the key technique is the use of atomically sharp probe tips to interact with an underlying ...

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A stand‐alone compact EUV microscope based on gas‐puff target source

21-Oct-2016 | ALFIO TORRISI, PRZEMYSLAW WACHULAK, ŁUKASZ WĘGRZYŃSKI, TOMASZ FOK, ANDRZEJ BARTNIK, TOMÁŠ PARKMAN, ŠÁRKA VONDROVÁ, J ..., Journal of Microscopy, 2016

Summary We report on a very compact desk‐top transmission extreme ultraviolet (EUV) microscope based on a laser‐plasma source with a double stream gas‐puff target, capable of acquiring magnified images of objects with a spatial (half‐pitch) resolution of sub‐50 nm. A multilayer ellipsoidal ...

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Single Molecule Nanoelectrochemistry in Electrical Junctions

07-Oct-2016 | Richard J. Nichols; Simon J. Higgins, Accounts of Chemical Research, 2016

ConspectusIt is now possible to reliably measure single molecule conductance in a wide variety of environments including organic liquids, ultrahigh vacuum, water, ionic liquids, and electrolytes. The most commonly used methods deploy scanning probe microscopes, mechanically formed break ...

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Helium Ion Microscope Fabrication Causing Changes in the Structure and Mechanical Behavior of Silicon Micropillars

06-Oct-2016 | Yue‐Cun Wang, Lin Tian, Fan Liu, Yuan‐Bin Qin, Gong Zheng, Jing‐Tao Wang, Evan Ma, Zhi‐Wei Shan, Small, 2016

Silicon is used as a prominent case to demonstrate the dramatic effects of helium ion microscope nanofabrication. Structurally, a submicrometer Si pillar can turn completely amorphous at He+ doses typically used for micromachining, forming nanobubbles at higher doses. In terms of mechanical ...

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Histological and ultrastructural features of the rectum in Poecilimon cervus Karabağ, 1950 (Orthoptera: Tettigoniidae)

06-Oct-2016 | Irmak Polat, Zekiye Suludere, Selami Candan, Microscopy Research and Technique, 2016

Abstract The morphology and ultrastructure of the rectum in Poecilimon cervus Karabağ, 1950 (Orthoptera, Tettigoniidae) were analyzed by light microscope, scanning (SEM) and transmission electron microscopes (TEM). The rectum is the final part of the digestive tract that plays an important ...

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