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.
Recent research on two-dimensional (2D) graphene with various functional materials has refreshed the development of field emission devices. Here, we propose field emitters based on the combined structures with multi-dimensional graphene-nanotube functional materials. Graphene is grown directly on the copper foils by using the thermal chemical vapor deposition (CVD). The carbon nanotube emitters are...
We have fabricated large current density cold cathodes based on the printed carbon nanotubes(CNTs), which are applied in the compact vacuum electron devices including X-ray sources and microwave tubes. The peak value of the cathode current in the diode structure driven by DC voltage is up to 19.88mA (current density: ∼2.51A/cm2), along with the fluctuations of the current smaller than 5.3% during...
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.