like amorphous carbon films
Báo cáo hóa học: " Field Emission and Radial Distribution Function Studies of Fractal-like Amorphous Carbon Nanotips" potx
... this technique, we recently developed methods to synthesize nanopalmlike silica /carbon heterostructures [16] and arrays of fractal -like a-C nanotips [11] RDF Studies Previous to the FE experiments ... near the tip regions Finally, the 123 Fig TEM image of a fractal -like a-C nanotips obtained by TEMEBID method deposited hydrocarbons are then transformed into a-C due to the continuous electron ... liquid nitrogen trap brings hydrocarbon contamination inside the chamber which generally comes from the diffusion pump Due to the incident electron beam, the hydrocarbon molecules are ionized The...
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Synthesis of large scale sic–sio2 nanowires decorated with amorphous carbon nanoparticles and raman and PL properties
... the carbon in two kinds of nanowires are different It is well known that an interlayer having high carbon concentration exists at the interface between SiC and SiO2 and this interlayer induce carbon- related ... core–shell nanowires decorated with carbon nanoparticles have been synthesized using thermal decomposition of ethanol The existence of carbon nanoparticles induced strong carbon- related bands in Raman ... core–shell nanowires decorated with carbon nanoparticles and considered to relate to the enhancement of oxygen deficiency and appearance of carbon- related default level due to carbon diffusion into SiO2...
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temporal profile of optical transmission probe for pulsed laser heating of amorphous silicon films
... this work accurately capture the transient temperature field in excimer laser irradiated amorphous silicon films Support to this work by the National Science Foundation, under Grant No CTS-9096253, ... index [Eqs (la) and (lb) Such changes were accounted for in the picosecond irradiation of thin c-Si films3 by assuming an average film temperature for the fitting of the measured optical properties ... the ambient temperature T, T(x=dsi+dDt) 30 FIG Surface temperature histories for a 0.2 pm-thick amorphous silicon layer, irradiated with an excimer laser (A=O.248 pm) for laser fluences F= 19.6,31.6,46.6...
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Application of micro cantilevers in characterization of crystallization induced stresses and mechanical properties of amorphous thin films
... furnace annealing of amorphous thin films at elevated temperatures - 102 3.2.7.1 The furnace with a vacuum to crystallize amorphous Cu-Zr thin films ... vacuum to crystallize amorphous Zr-Cu-Al thin films 103 3.6.7.3 High precision furnace to anneal amorphous phase-change Ge2Te2Sb5 films ... and coefficients of thermal expansion of amorphous Cu-Zr thin films - 162 7.1 Measurement of Young’s modulus of amorphous Cu-Zr thin films - 162 7.1.1 Analytical model...
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Structural, electrical and optical studies on the effects of rapid thermal processing on silicon germanium carbon films
... ELECTRICAL AND OPTICAL STUDIES ON THE EFFECTS OF RAPID THERMAL PROCESSING ON SILICONGERMANIUM -CARBON FILMS FENG WEI (M Eng, XJTU) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT ... their help in the use of Lab equipment I would like to especially thank Dr L K Bera for his many invaluable technical advice and friendship I would like to think Dr Ramam, Mr Liu Rong, Ms Ji Rong, ... help in the XRD, SIMS, Raman and DLTS measurement I would like to appreciate al my fellow friends in the Microelectronics Lab I would like to thank Professor Carry Yang from Santa Clara University...
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Direct growth of amorphous silica nanowires by solid state transformation of sio2 films
... shows an amorphous carbon phase (Fig 2d) No titanium and nitrogen were detected by the EELS in the nanowires The carbon on the shell is supplied by thermal decomposition of CH4 by nickel No carbon ... inside the nanowire indicating the formation of an amorphous silica phase; (d) a carbon 1s profile from the outside shell indicating a amorphous carbon phase CH4 , which explains the faster growth ... of the nanowire on a TEM grid used for the EELS analysis The arrow shows a carbon wire grown from the surface amorphous carbon by a focused electron beam scanning cross the wire; (b) intensity...
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Rational growth of highly oriented amorphous silicon nanowire films
... layer of wool -like product, as is shown in Fig The wool -like layer with homogeneous thickness can be easily scratched from the substrate, which is Fig SEM image revealing a wool -like film on large ... with arrow in the SEM image In the magnified SEM image in the left inset, one piece of the wool -like carpet was scratched from the substrate and was folded on top of the film The right inset shows ... repeated the procedure several times under a similar growth conditions and found that the wool -like films were completely reproducible This demonstrates that our method is controllable and easy...
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hybrid metal oxide and multiwall carbon nanotube films for low temperature gas sensing
... 1, where carbon nanotubes are not revealed However, regardless the metal oxide employed, carbon nanotubes could be observed in a few regions of the films’ surface (see Fig 2) Therefore, carbon nanotubes ... sensor doped with carbon nanotubes operating at room temperature, Sens Actuator B 101 (2004) 81–89 [11] Y Chen, C Zhu, T Wang, The enhanced ethanol sensing properties of multi-walled carbon nanotubes/SnO2 ... al / Sensors and Actuators B 127 (2007) 137–142 Experimental 2.3 Material characterization 2.1 Carbon nanotube functionalization The morphology of the hybrid films deposited onto the micro-hotplate...
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thermomechanical and thermal contact characteristics of bismuth telluride films electrodeposited on carbon nanotube arrays
... be manifested in subtle differences in peak intensity and diffraction angle The possibility that carbon contamination Figure FESEM images showing a) top view of a Bi2Te3 pattern electrofrom the...
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Báo cáo hóa học: " Graphitic carbon growth on crystalline and amorphous oxide substrates using molecular beam epitaxy" pot
... According to the model, Figure Raman spectra of carbon films The films were grown (a) at 900°C on amorphous TiO2 and (b) at 900°C on amorphous Ta2O5 No carbon- related peaks are observed The peak near ... clear 2D peak implies the transition from NCG to mainly sp2 amorphous carbon [11] Based on Figure Raman spectra of carbon films The films were grown (a) at 1,000°C on SrTiO3(100) and (b) at 900°C ... http://www.nanoscalereslett.com/content/6/1/565 Figure Raman spectra of carbon films The films were grown (a) at 950°C on amorphous SiO2 and (b) at 900°C on Eagle 2000™ glass In both cases, graphitic carbons of high crystallinity are...
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Báo cáo hóa học: "Nanopatterning on silicon surface using atomic force microscopy with diamond-like carbon (DLC)-coated Si probe" pptx
... 2010, 5:1403-1407 25 Huang SJ, Jeng YR, Liu KF: Sliding wear characteristics of the diamondlike carbon films on alloy substrates Wear 2007, 263:1266-1273 26 Malekian M, Park SS, Strathearn D, Mostofa ... as: Jiang et al.: Nanopatterning on silicon surface using atomic force microscopy with diamond -like carbon (DLC)-coated Si probe Nanoscale Research Letters 2011 6:518 Submit your manuscript to ... Kanki T, Tohyama HA, Hirooka M, Tanaka H, Kawai T: Nanopatterning of perovskite manganite thin films by atomic force microscope lithography Nanotechnology 2005, 16:28-31 Gregor M, Plecenik A,...
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Báo cáo hóa học: " Electrical behavior of multi-walled carbon nanotube network embedded in amorphous silicon nitride" potx
... conductance minima Abbreviations CNTs: carbon nanotubes; MWCNTs: multi-walled carbon nanotubes; PMMA: poly(methyl methacrylate); SWCNTs: single-walled carbon nanotubes; THF: tetrahydrofuran; ... single-wall carbon nanotube inks J Am Chem Soc 2007, 129:10088-10089 Avouris P, Chen ZH, Perebeinos V: Carbon- based electronics Nat Nanotechnol 2007, 2:605-615 Leonard F: The Physics of Carbon Nanotube ... conductive carbon nanotube/poly (bisphenol A carbonate) composite J Appl Phys 2009, 105:073711, (1-5) Khosla A, Gray BL: Preparation, characterization and micromolding of multi-walled carbon nanotube...
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Báo cáo hóa học: " Effect of Composition on Electrical and Optical Properties of Thin Films of Amorphous GaxSe1002x Nanorods" pptx
... melt is rapidly quenched in ice water to make it amorphous The bulk glassy alloys were characterized by X-ray diffraction technique and found to be amorphous in nature as no prominent peak was observed ... the amorphous structure In particular, it is known that unsaturated bonds together with some saturated bonds are produced as the result of an insufficient number of atoms deposited in the amorphous ... pre-deposited indium electrodes (two thick indium electrode) are used as a substrate for depositing amorphous films in the planer geometry All films are deposited by thermal evaporation technique keeping...
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Báo cáo hóa học: " Intense Red Catho- and Photoluminescence from 200 nm Thick Samarium Doped Amorphous AlN Thin Films" ppt
... intensity of the Fig PL spectrum of amorphous AlN:Sm with excitation at 488 nm and emission at 707 nm 123 750 Nanoscale Res Lett (2009) 4:748–752 Fig CL spectrum of amorphous AlN:Sm films 1600 600 ... potential candidate for making quantum dots Conclusion Thin films of amorphous AlN:Sm are deposited by rf magnetron sputtering Films were characterized for their surface morphology and luminescence ... films in a tube furnace at 1,200 K in a nitrogen atmosphere for half an hour 749 Fig PL spectrum of amorphous AlN:Sm with excitation at 488 nm and emission at 598 nm emission is very strong and hence...
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Báo cáo hóa học: " Elastic Properties of 4–6 nm-thick Glassy Carbon Thin Films" pot
... polyfurfuryl alcohol derived nanoporous carbon Carbon 44, 2957–2963 (2006) C.L Burket, R Rajagopalan, H.C Foley, Synthesis of nanoporous carbon with pre-graphitic domains Carbon 45, 2307–2310 (2007) W.V ... properties of glassy carbon to 2900 °C Nature 206, 1246–1247 (1965) ¨ 10 E Fitzer, W Schafer, The effect of crosslinking on the formation of glasslike carbons from thermosetting resins Carbon 8, 353– ... nanoporous carbon Carbon 46, 501–510 (2008) R Rajagopalan, A Ponnaiyan, P.J Mankidy, A.W Brooks, B Yi, H.C Foley, Molecular sieving platinum nanoparticle catalysts kinetically frozen in nanoporous carbon...
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Báo cáo hóa học: " Effect of Substrate Morphology on Growth and Field Emission Properties of Carbon Nanotube Films" pptx
... successfully used to deposit a variety of nanostructured carbon films ranging from diamond [24], carbon nanosheets [25] CNTs [20, 23], and carbon nanobells [26, 27] to monochiral MWNTs [28] on Si ... and shapes may be different both in magnitude and direction [34, 35], resulting in flower -like or honeycomb -like morphology of CNTs on the mechanically polished or porous substrates It is important ... (sample 3) is very interesting as shown in Fig 2c CNTs around the pits are aligned such as to appear like flowers Central part of the pits seems to be free Fig SEM micrographs of (a) mechanically polished...
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Báo cáo nghiên cứu khoa học: " DIAMOND - LIKE CARBON COATINGS FOR TRIBOLOGICAL APPLICATIONS" pot
... Angus, Diamond -like hydrocarbon and carbon films, In Diamond and diamond like films and coatings, p173, NewYork, (1991) [2] Y Catherine, Preparation techniques for diamond -like carbon, In Diamond ... techniques for diamond -like carbon, In Diamond and diamond like films and coatings, p193, NewYork (1991) [3] Y Lifshitz, Diamond -like carbon- present status, Diamond and Related Materials (1999)1659-1676 ... of graphite -like clusters Also, at high bias voltage, re-sputtering strongly takes place It should be noted that bonds of carbon atoms in graphite structure are weak therefore the carbon atoms...
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báo cáo khoa học: " Comparison of Radioimmuno and Carbon Nanotube Field-Effect Transistor Assays for Measuring Insulin-Like Growth Factor-1 in a Preclinical Model of Human Breast Cancer" doc
... Cancer Susceptibility gene; CNT: carbon nanotube; CNT-FET: carbon nanotube field-effect transistor; ELISA: Enzyme-Linked Immunosorbent Assay; IGF-1: Insulin like growth factor-1; IGFBP: IGF binding ... S.E.M Significance was assigned at P ≤ 0.05 IGF-1 CNT-FET Assay Single-walled carbon nanotubes (SWNTs) were purchased from Carbon Nanotechnologies Inc The SWNTs mixture used contains about 70% conducting ... Diagnostic and prognostic role of the insulin growth factor pathway members insulin -like growth factor-II and insulin -like growth factor binding protein-3 in serous effusions Hum Pathol 2009, 40:527-37...
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