Results 61 to 70 of about 982 (168)

Theoretical study of electronic properties of resonant tunneling diodes based on double and triple AlGaAs barriers

open access: yesResults in Physics, 2020
In this paper, we investigated the effect of the central AlGaAs barrier width Lb2 in a resonant tunneling diode (RTD) composed by triple barriers on the current-voltage characteristics, and electronic density of free carriers.
Shaffa Almansour
doaj   +1 more source

Negative Differential Resistance in Single‐Molecule Junctions Based on Heteroepitaxial Spherical Au/Pt Nanogap Electrodes

open access: yesAdvanced Electronic Materials
Single‐molecule junctions exploit the internal structure of molecular orbitals to construct a new class of functional quantum devices. The demonstration of negative differential resistance (NDR) in single‐molecule junctions is direct evidence of quantum ...
Dongbao Yin   +6 more
doaj   +1 more source

A Memristive Oscillator

open access: yesAdvanced Physics Research
Memristors, or more generally “memristive systems,” are nonlinear electric components that change their resistance depending on a set of state variables.
Yugo Oshima   +6 more
doaj   +1 more source

Photo-Detectors Integrated with Resonant Tunneling Diodes

open access: yesSensors, 2013
We report on photo-detectors consisting of an optical waveguide that incorporates a resonant tunneling diode (RTD). Operating at wavelengths around 1.55 μm in the optical communications C band we achieve maximum sensitivities of around 0.29 A/W which is ...
José M. L. Figueiredo   +4 more
doaj   +1 more source

Investigation of InGaP/GaAs multiple negative-differential-resistance (NDR) device prepared by MOCVD

open access: yes, 1996
An interesting multiple S-shaped negative-differential-resistance (NDR) phenomenon is observed for an InGaP/GaAs heterostructure-emitter bipolar transistor (HEBT) under the inverted operation mode. This behavior is resulted from a sequential avalanche multiplication and two-stage barrier lowering effect.
Liu, Wen-Chau   +5 more
openaire   +2 more sources

Noise Spectroscopy and Electrical Transport In NbO2 Memristors with Dual Resistive Switching

open access: yesAdvanced Electronic Materials
Negative differential resistance (NDR) behavior observed in several transition metal oxides is crucial for developing next‐generation memory devices and neuromorphic computing systems. NbO2‐based memristors exhibit two regions of NDR at room temperature,
Nitin Kumar   +4 more
doaj   +1 more source

First principle investigation of electronic transport properties of the edge shaped graphene-porphine molecular junction device

open access: yesAIP Advances, 2018
There has been considerable interest in engaging porphyrin, which plays a central role in a variety of biological processes, as a molecular device for bio-inspired system application.
Abhisek Kole, Diing Shenp Ang
doaj   +1 more source

Electrochemical Study of the Pt Nanoparticles Size Effect in the Formic Acid Oxidation

open access: yesInternational Journal of Electrochemical Science, 2012
Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) provided interesting information about the particle size effect during HCOOH electro-oxidation. They were evaluated Pt nanoparticles between 1.5 and 3.7 nm (From Etek Co.).
F. Godínez-Salomón   +2 more
doaj   +1 more source

Variations in Local Oscillatory Dynamics in Strained LSMO Thin Films, Observed in Non Equilibrium Transport Studies, for Brain Networks

open access: yesAdvanced Electronic Materials
Strong correlation effects in transition metal oxides and their sensitivity to external stimuli in driving phase transitions have been widely explored.
Hitesh Chhabra   +3 more
doaj   +1 more source

Penta fever going on: conductive Penta-BCN4 with negative differential resistance (NDR)

open access: yes
Pentagonal 2D structures, surpassing conventional hexagonal sheets, are gaining increasing attention due to their exceptional properties and diverse applications. In this study, we investigate penta-BCN4, a ternary monolayer 2D penta structure with intrinsically exceptional properties.
Mahdi Faghihnasiri   +5 more
openaire   +1 more source

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