The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In the present work, experiments have been carried out to study locally-grown ZnO nanowires on the drain-electrode of MOSFET by low-temperature solution-phase method and the effect of active control on field electron emission.
A growing number of one-dimensional nanomaterials including nanotubes, nanorods and nanowires have been synthesized and found to give attractive field electron emission performance. Field emission from a two-dimensional (2D) regime is emerging as new hot topic, due to graphene can offer ones such opportunity, and its open surface and sharp edge may be beneficial for field emission. Two-dimensional...
Controlled synthesis of ultra-long AlN nanowire arrays in different growth density has been successfully realized by direct nitridation of Al powders for the first time. These AlN nanowires have an average diameter of about 100 nm and their mean length is over 50 μm. All the synthesized ultra-long nanowires are pure single crystalline h-AlN structures with the growth orientation of [0001]. We propose...
In this paper, nanodiamonds embedded diamond-like carbon films were fabricated. Nanodiamonds were dispersed onto silicon wafer by dielectrophoresis technique while the DLC films were deposited using magnetic filtered cathodic vacuum arc (MFCVA) technique. Surface inhomogeneity of morphology, contact potential and resistance of the films were studied by using scanning electron microscopy, Raman spectroscopy,...
Excellent electronic emission is a very important issue for cold cathode application. We have study the effect of growth environment on the CNTs film cold cathode. With using a pretreatment process of the growth environment in thermal chemical vapor deposition method, the better morphology and structure of the CNTs film were obtained, and the field emission properties of the CNTs film were improved
ZnO nanowire films were grown on stainless-steel disc with a thin layer of Au as catalyst by thermal evaporation in a vacuum chamber. Morphology of the nanowires was investigated by scanning electron microscopy, while emission site distribution images were recorded by a CCD camera. The nanowires were then used as cathodes in a luminescent tube and its turn-on and threshold voltages and fields, and...
A Bayard-Alpert ionization gauge with a carbon nanotube (CNT) field emitter was fabricated and tested. CNTs were grown on stainless steel rods by thermal chemical vapor deposition at 900degC in a mixture of CH4 an H2 gas. The structure of the as-grown CNTs was investigated using scanning electron microscopy, transmission electron microscopy and Raman spectroscopy. The longtime field emission stability,...
Au-Ag nanoparticles are used as nanomasks for Si nanowires fabrication. Au-Ag alloy film deposited on Si substrate is annealed in H 2 ambient at a temperature of 750degC. The SiNWs were fabricated through a dry etching processing in an inductively coupled plasma (ICP) system. SEM images of the uniform vertically aligned silicon nanowire arrays show 50 to 100 nm nanowire diameter range and ~1.1 mum...
Diverse tungsten oxide nanostructures are prepared at different conditions of hot filament arrays thermal vapor method. The synthesized nanostructures are characterized using SEM, XRD and EDS. These structures exhibited high turn-on fields that may be due to the electrostatic screening effect caused by high energy density of tungsten oxide nanowire interlaced structure
The temperature dependence of field emission currents from CuO nanowires are calculated using a method considering both nanowire core conducting current and hopping current induced by surface states. Results are compared to data from experimental work
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.