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 this study, we demonstrate the high performance few-layer graphene-Si sensor with high photoresponsivity of 95 mA/W, operation behaviors with external bias as low as 0 V, and broadband operating light wavelength from 400 nm to 1000 nm by combining high transparency of few-layer graphene and n-type silicon. Although external bias benefits the photoresponsivity, the larger dark current is the price...
This paper analyzes and compares the frequency responses of both Cu based interconnect and heterogeneous interconnect which consists of graphene sheets and Cu. By using partial element equivalent circuit (PEEC) method, the equivalent electric parameters of these two kinds of interconnects are obtained. A driver-interconnect-load (DIL) model and an equivalent single conductor (ESC) circuit are utilized...
High quality single layer graphene grown by chemical vapor deposition (CVD) method has sheet impedance ranging from 300 ohm to 600 ohm. We demonstrate that it can be used as an absorbing film in Salisbury absorber. An efficient and accurate transmission line model is proposed for such transparent graphene film absorber at 38.5 GHz. Result of transmission line model is in good agreement with that of...
Graphene has become a hot topic since it was discovered. However, articles about using graphene in passive devices, especially the GHz band antennas for modern communication application, have been less reported so far. In this work, a dipole antenna printed on a substrate is proposed and experimentally investigated, where the graphene sheet is connected to the ends of the dipole. This dipole is designed...
A novel type of three-dimensional (3D) frequency-selective surface (FSS) based on vertical graphene micro-ribbons is demonstrated to realize dynamic tunability of the frequency selectivity. The proposed structure is based on a two-dimensional array of vertical graphene micro-ribbons which are printed on the dielectric substrates with metallic ground planes placed at the bottom. A transmission line...
In this paper, the properties of graphene in both microscopic and macroscopic scale are studied. Different equivalent circuit models are implemented to characterize the signal integrity of graphene-based interconnect and to extract the surface conductivity of graphene. On the one hand, input/output voltage of different interconnect structures is explored and eye diagram is utilized for further study...
In this paper, the properties of graphene in both microscopic and macroscopic scale are studied. Different equivalent circuit models are implemented to characterize the signal integrity of graphene-based interconnect and to extract the surface conductivity of graphene. On the one hand, input/output voltage of different interconnect structures is explored and eye diagram is utilized for further study...
The signal transmission along interconnect based on graphene nanoribbon (GNR) is studied in this paper. Equivalent circuit models are implemented to characterize graphene-based interconnect and analyze its signal integrity. In equivalent circuits models, the inter-layer mutual impedance (capacitance and inductance) between adjacent layers has been taken into consideration. Meanwhile, we proposed both...
This Graphene is a two-dimensional material with one-atom thickness, high carrier mobility and high thermal conductivity. The resistance of graphene can be tuned in the range of 30∼100Ω by adjusting its dc bias, which have wide applications in RF circuit design. Its extraordinary features provide a new extension for the next generation of high-speed electronic integrated circuits. In this paper, the...
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.