| Graphene-based Nanoelectronics (FY11) |
Jan 2012 |
76 pages |
| Authors:
Madan Dubey; Raju Nambaru; Marc Ulrich; Matthew Ervin; Barbara Nichols; Eugene Zakar; Osama M Nayfeh; Matthew Chin; Glen Birdwell; Terrance O'Regan; ARMY RESEARCH LAB ADELPHI MD
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 | A large program in graphene-based nanoelectronics has continued at the U.S. Army Research Laboratory (ARL) under the auspices of the ARL Director's Strategic Initiative (DSI). An array of capabilities for graphene growth, characterization, device fabrication, and device modeling has been established, and expertise has been gained in all facets of this research. Significant results have been achieved, including growth of single-, bi-, and few-layer graphene; development of a graphene transfer ... |
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| Modeling, Fabrication, and Electrical Testing of Metal-Insulator-Metal Diode |
Dec 2011 |
26 pages |
| Authors:
Terrance O'Regan; Matthew Chin; Cheng Tan; Anthony Birdwell; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
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| We fabricated, tested, and modeled metal-insulator-metal (MIM) diodes for application into a nanorectenna energy-harvesting system. The MIM diodes were constructed of a niobium (Nb) bottom metal, niobium pentoxide (Nb2O5) dielectric, and varying top metals (copper, silver, and gold). Modeling and electrical testing were used to extract the dielectric constant of Nb2O5 as well as the metal-insulator barrier heights. The modeling also gave insight into the so-called rectification reversal, where the ... |
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| Graphene-based Nanoelectronics |
Feb 2011 |
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| Authors:
Madan Dubey; James Wilson; Matthew Ervin; Frank Crowne; Barbara M Nichols; Matthew Chin; Stephen Kilpatrick; Robert Proie; Raju Nambaru; Marc Ulrich; Osama M Nayfeh; Tony Ivanov; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
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 | A large program in graphene-based nanoelectronics has been initiated at the U.S. Army Research Laboratory (ARL) under the auspices of the ARL Director's Strategic Initiative (DSI). An array of capabilities for graphene growth, characterization, device fabrication, and device modeling has been established, and expertise has been gained in all facets of the research. Significant results have been achieved, including the world's highest reported fT for a graphene field-effect transistor (GFET) ... |
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| Differential Amplifier Circuits Based on Carbon Nanotube Field Effect Transistors (CNTFETs) |
Apr 2010 |
22 pages |
| Authors:
Matthew Chin; Stephen Kilpatrick; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
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| Carbon nanotube-based field effect transistors (CNTFETs) show potential in the area of integrated amperometric sensors due to their high sensitivity (ppm) to analytes, fast response times (seconds to minutes), and large surface area-to-volume ratios. This research demonstrates the design, fabrication, and testing of a CNTFET-based differential amplifier with the goal of achieving a nominal gain of 20 dB. Differential amplifiers possess the benefits of low noise, low distortion, and small ... |
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| Metal-Insulator-Metal Diode Process Development for Energy Harvesting Applications |
Apr 2010 |
30 pages |
| Authors:
Matthew Chin; Stephen Kilpatrick; Richard Osgood; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
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| Persistent powering of electronics, sensors, and autonomous systems on the battlefield has become increasingly important to the U.S. Army. Scavenging energy from local environments reduces the required energy and weight transported to the theater. Black-body radiation could potentially provide a 24-hr energy source for Army systems. Micro/Nano-scale, metal-insulator- metal (MIM) tunnel diodes will be developed to provide half-wave rectification as part of a rectenna energy harvesting system, which includes a ... |
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