Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"negative differential resistance (NDR)"”.
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Transverse and Longitudinal Tunneling in Confined Heterostructures
… nature of electrons and holes to exhibit negative differential resistance (NDR) via tunneling.
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Electrical and optical properties of carbon nanotube intra-connects and conductive polymers
… has been shown to correlate with a novel negative differential resistance (NDR) effect. Electroplated intraconnects exhibited unique properties both for multi-walled and single-walled carbon nanotube channels.
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Investigation of Negative Differential Resistance Phenomena in Quantum Well Heterostructures
… in quantum well heterostructures and led to the negative differential resistance observation is presented. Using the Hall effect measurement technique, the mobility and carrier concentration were measured and analyzed by considering different scattering mechanisms and carrier thermal activation …
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Uniaxial Strain Effect on Graphene-Nanoribbon Resonant Tunneling Transistors
… show the resonant tunneling and strong negative differential resistance (NDR). These devices which have potential for future high-frequency and logic applications such as high-speed IC circuits, signal generators, data storage, etc., has been studied both theoretically and experimentally …
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Gate current modeling of tunneling real-space transfer transistor with negative differential resistance
… of gate current is introduced to obtain a negative differential resistance (NDR) on a dual-channel tunneling real-space transfer transistor (TRSTT). The device was fabricated on a GaAs (100) substrate with a GaAs/InGaAs/GaAs straddling heterostructure. According to the experimental data …
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Cryogenic operation of silicon-germanium heterojunction bipolar transistors and its relation to scaling and optimization
… (DD) theory is used to investigate a novel negative differential resistance (NDR) effect and a collector current kink effect in first-generation SiGe HBTs at deep cryogenic temperatures. A theory of positive feedback due to the enhanced heterojunction barrier effect at deep cryogenic …
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Physics-Based Compact Model Development of Field Emitter Arrays
… limit show an unexplained, yet reproducible Negative Differential Resistance (NDR) region resulting in a double saturation behavior. Upon further analysis of the electrostatics, the parallel-plate configuration was found to introduce a 2-dimensional acceleration channel affecting electron …
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InGaAs/GaAsSb quantum-well Tunnel-FETs for ultra-low power applications
… device I-V characteristics and gate-dependent negative-differential-resistance (NDR) under forward bias condition (VDS < 0), experimental and simulation results of QWTFET-based RF detector, oscillator and mixer have demonstrated the potential of QWTFET in these non-logic circuit applications, …
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Novel RTD-Based Threshold Logic Design and Verification
… in conjunction with RTDs to modulate effective negative differential resistance (NDR). However, RTDs are intrinsically suitable for implementing threshold logic rather than Boolean logic which has dominated CMOS technology in the past. To fully take advantage of such emerging nanotechnology, …
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Modelling of advanced submicron gate InGaAs/InAIAs pHEMTS and RTD devices for very high frequency applications
… peak-to-valley-current ratio (PVCR), and negative differential resistance (NDR) voltage range. The simple one-dimensional physical modelling for the RTD devices is optimised to achieve an excellent match with the fabricated RTD devices with variations in the spacer thickness, barrier …