English
Related papers

Related papers: Tunnel Junction-Enabled Monolithically Integrated …

200 papers

This paper introduces an optically controlled 4H-SiC MOSFET designed to avoid the gate-oxide interface unreliability and electromagnetic interference (EMI) susceptibility inherent in conventional voltage-driven devices. By replacing the…

In a family of experiments carried on all-metallic supercurrent nano-transistors a surprising gating effect has been recently shown. These include the full suppression of the critical supercurrent, the increase of quasiparticle population,…

Mesoscale and Nanoscale Physics · Physics 2021-01-26 M. Rocci , G. De Simoni , C. Puglia , D. Degli Esposti , E. Strambini , V. Zannier , L. Sorba , F. Giazotto

Integrated optical devices able to control light matter interactions on the nanoscale have attracted the attention of the scientific community in recent years. However, most of these devices are based on silicon waveguides, limiting their…

We have fabricated a device which includes two lateral p-n junctions on an n-type GaAs/Al$_{0.33}$Ga$_{0.67}$As heterostructure. A section of the n-type material has been converted to p-type by removing dopants and applying a voltage to a…

Applied Physics · Physics 2024-08-19 C. P. Dobney , A. Nasir , P. See , C. J. B. Ford , J. P. Griffiths , C. Chen , D. A. Ritchie , M. Kataoka

We show evidence that tunnel junctions (TJs) in GaN grown by metal-organic vapor phase epitaxy are dominated by trap-assisted (Poole-Frenkel) tunneling. This stems from observations of the careful optimized doping for the TJs. Especially…

The objective of this paper is to design and implement an intelligent Traffic Light Controller system for a four way road intersection. The design is carried out using Verilog, and the hardware is implemented on a FPGA. The chosen…

Systems and Control · Electrical Eng. & Systems 2024-02-27 Apoorva Banerjee

Vertical tunneling field-effect-transistor (FET) based on graphene heterojunctions with layers of hBN is simulated by self-consistent quantum transport simulations. It is found that the asymmetric p-type and n-type conduction is due to work…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 S. Bala Kumar , Gyungseon Seol , Jing Guo

The main interest of group-III-nitride nanophotonic circuits is the integration of active structures and laser sources. A photonic platform of group-III-nitride microdisk lasers integrated on silicon and emitting in the blue spectral range…

Device based on GaN have great potential for high power switching applications due to its high breakdown field and high electron mobility. In this work, we present the device design of a vertical GaN-on-GaN PN power diode using high…

Electrically injected deep ultra-violet (UV) emission is obtained using monolayer (ML) thin GaN/AlN quantum structures as active regions. The emission wavelength is tuned by controlling the thickness of ultrathin GaN layers with monolayer…

A fundamental road block for all-optical information processing is the difficulty in realizing a silicon optical transistor with the ability to provide optical gain, input output isolation and buffer action. In this work, we demonstrate an…

Electrostatic gating confines and controls the transport of electrons in integrated circuits. Magnons, the quanta of spin waves of the magnetic order, are promising alternative information carriers, but difficult to gate. Here we report…

Mesoscale and Nanoscale Physics · Physics 2022-09-21 Tao Yu , Gerrit E. W. Bauer

This paper presents the design of an 800 V 11 kVA three-level three-phase active neutral point clamped inverter, utilizing 650 V gallium nitride enhancement-mode high-electron-mobility transistors, to evaluate its feasibility in electric…

Instrumentation and Detectors · Physics 2024-06-25 Angelo Di Cataldo , Hamed Eivazi , Giuseppe Aiello , Dario Patti , Giacomo Scelba , Mario Cacciato , Francesco Gennaro

Flexible transparent electrodes, encompassing the combination of optical transparency and electrical conductivity, empower numerous optoelectronic applications. While the main efforts nowadays concentrate on developing wire meshes and…

Terahertz bands enable ultra-broadband wireless communications but require compact, low-cost, and efficient transceiver modules. Conventional implementations based on metallic waveguides or silicon lenses suffer from high loss, bulkiness,…

Flash memory based on floating gate transistor is the most widely used memory technology in modern microelectronic applications. We recently proposed a new concept of multilayer graphene nanoribbon (MLGNR) and carbon nanotube (CNT) based…

Mesoscale and Nanoscale Physics · Physics 2016-11-15 Nahid M. Hossain , Md Belayat Hossain , Masud H. Chowdhury

Ten years have passed since the beginning of graphene research. In this period we have witnessed breakthroughs both in fundamental and applied research. However, the development of graphene devices for mass production has not yet reached…

Mesoscale and Nanoscale Physics · Physics 2016-02-19 N. C. S. Vieira , J. Borme , G. Machado , F. Cerqueira , P. P. Freitas , V. Zucolotto , N. M. R. Peres , P. Alpuim

Carbon-doped GaN is a promising material for sub-bandgap triggered optical switches. When incorporated in GaN, carbon introduces deep compensating centers that enable defect-mediated extrinsic photoconductivity. Here, we investigate the…

In this paper, we investigated a gate driver using a GaN HEMT push-pull configuration for the high-frequency hard switching of a SiC power MOSFET. Low on-resistance and low input capacitance of GaN HEMTs are suitable for a high-frequency…

Signal Processing · Electrical Eng. & Systems 2017-11-09 Takafumi Okuda , Takashi Hikihara

We investigate the current-voltage characteristics of a field-effect tunnelling transistor comprised of both monolayer and bilayer graphene with well-aligned crystallographic axes, separated by three layers of hexagonal boron nitride. Using…

Mesoscale and Nanoscale Physics · Physics 2015-12-10 Thomas L M Lane , John R Wallbank , Vladimir I Fal'ko