You are currently on the new version of our website. Access the old version .

242 Results Found

  • Article
  • Open Access
7 Citations
1,921 Views
15 Pages

6 October 2022

In this paper, an In0.53Ga0.47As electron–hole bilayer tunnel field-effect transistor (EHBTFET) with a dual-metal left-gate and an N+-pocket (DGNP-EHBTFET) is proposed and systematically studied by means of numerical simulation. Unlike traditio...

  • Article
  • Open Access
6 Citations
1,966 Views
14 Pages

Proton-Coupled Electron Transfer and Hydrogen Tunneling in Olive Oil Phenol Reactions

  • Jelena Torić,
  • Ana Karković Marković,
  • Stipe Mustać,
  • Anamarija Pulitika,
  • Cvijeta Jakobušić Brala and
  • Viktor Pilepić

Olive oil phenols are recognized as molecules with numerous positive health effects, many of which rely on their antioxidative activity, i.e., the ability to transfer hydrogen to radicals. Proton-coupled electron transfer reactions and hydrogen tunne...

  • Article
  • Open Access
5 Citations
4,616 Views
15 Pages

12 November 2015

A new possible mechanism of signal detection in the THz range is investigated, based on the excitation of resonances due to the tunneling effect between two graphene nanoribbons. A simple detector is proposed, where two graphene nanoribbons are used...

  • Feature Paper
  • Article
  • Open Access
10 Citations
4,917 Views
15 Pages

11 December 2021

To realize quantum tunneling applications with movable electrodes, sharp tips with radii down to several tens of nanometers are necessary. The use of a focused ion beam (FIB) and focused electron beam (FEB) with a gas injection system (GIS) allows th...

  • Feature Paper
  • Article
  • Open Access
12 Citations
5,564 Views
10 Pages

4 August 2020

Metal gate technology is one of the most important methods used to increase the low on-current of tunnel field-effect transistors (TFETs). However, metal gates have different work-functions for each grain during the deposition process, resulting in w...

  • Feature Paper
  • Review
  • Open Access
3 Citations
5,568 Views
31 Pages

29 July 2025

The development of an integrated circuit faces the challenge of the physical limit of Moore’s Law. One of the most important “Beyond Moore” challenges is the scaling down of Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFET...

  • Article
  • Open Access
6 Citations
3,814 Views
28 Pages

19 January 2021

Electron emission (EE) from real metal surfaces occurring during sliding contact with a polytetrafluoroethylene (PTFE) rider has been investigated using the thermodynamic data of metal oxides and the X-ray photoelectron spectroscopy (XPS) intensity r...

  • Article
  • Open Access
10 Citations
9,363 Views
24 Pages

Room Temperature Ferromagnetic Mn:Ge(001)

  • George Adrian Lungu,
  • Laura Elena Stoflea,
  • Liviu Cristian Tanase,
  • Ioana Cristina Bucur,
  • Nicoleta Răduţoiu,
  • Florin Vasiliu,
  • Ionel Mercioniu,
  • Victor Kuncser and
  • Cristian-Mihail Teodorescu

27 December 2013

We report the synthesis of a room temperature ferromagnetic Mn-Ge system obtained by simple deposition of manganese on Ge(001), heated at relatively high temperature (starting with 250 °C). The samples were characterized by low energy electron diffra...

  • Article
  • Open Access
3 Citations
1,862 Views
13 Pages

A High-Performance InGaAs Vertical Electron–Hole Bilayer Tunnel Field Effect Transistor with P+-Pocket and InAlAs-Block

  • Hu Liu,
  • Peifeng Li,
  • Xiaoyu Zhou,
  • Pengyu Wang,
  • Yubin Li,
  • Lei Pan,
  • Wenting Zhang and
  • Yao Li

31 October 2023

To give consideration to both chip density and device performance, an In0.53Ga0.47As vertical electron–hole bilayer tunnel field effect transistor (EHBTFET) with a P+-pocket and an In0.52Al0.48As-block (VPB-EHBTFET) is introduced and systematic...

  • Article
  • Open Access
6 Citations
2,591 Views
20 Pages

29 November 2022

Temperature (T) dependent conductance G=G(T) data measured in molecular junctions are routinely taken as evidence for a two-step hopping mechanism. The present paper emphasizes that this is not necessarily the case. A curve of lnG versus 1/T decreasi...

  • Article
  • Open Access
2 Citations
2,498 Views
19 Pages

30 June 2022

Cracks in a tunnel lining often emerge under the coupling action of earth and water pressures in a complex stratum environment, and accidents often occur in the process of repairing cracks. In this study, we used the force-sensitive properties of emb...

  • Article
  • Open Access
8 Citations
2,494 Views
19 Pages

Insights into Electron Transport in a Ferroelectric Tunnel Junction

  • Titus Sandu,
  • Catalin Tibeica,
  • Rodica Plugaru,
  • Oana Nedelcu and
  • Neculai Plugaru

14 May 2022

The success of a ferroelectric tunnel junction (FTJ) depends on the asymmetry of electron tunneling as given by the tunneling electroresistance (TER) effect. This characteristic is mainly assessed considering three transport mechanisms: direct tunnel...

  • Article
  • Open Access
1 Citations
1,520 Views
10 Pages

13 July 2023

In this article, the particle irradiation effect of a lightly doped Gaussian source heterostructure junctionless tunnel field-effect transistor (DMG-GDS-HJLTFET) is discussed. In the irradiation phenomenon, heavy ion produces a series of electron-hol...

  • Article
  • Open Access
1 Citations
2,665 Views
16 Pages

Use of PtC Nanotips for Low-Voltage Quantum Tunneling Applications

  • Michael Haub,
  • Thomas Guenther,
  • Martin Bogner and
  • André Zimmermann

28 June 2022

The use of focused ion and focused electron beam (FIB/FEB) technology permits the fabrication of micro- and nanometer scale geometries. Therefore, FIB/FEB technology is a favorable technique for preparing TEM lamellae, nanocontacts, or nanowires and...

  • Article
  • Open Access
3 Citations
3,949 Views
25 Pages

27 May 2022

Perpendicular magnetic tunnel junctions provide a technologically important design platform for studying metal-insulator-metal heterostructure materials. Accurate characterization of the sensitivity of their electronic structure to proximity coupling...

  • Article
  • Open Access
6 Citations
2,545 Views
10 Pages

Tunneling Spectroscopy for Electronic Bands in Multi-Walled Carbon Nanotubes with Van Der Waals Gap

  • Dong-Hwan Choi,
  • Seung Mi Lee,
  • Du-Won Jeong,
  • Jeong-O Lee,
  • Dong Han Ha,
  • Myung-Ho Bae and
  • Ju-Jin Kim

Various intriguing quantum transport measurements for carbon nanotubes (CNTs) based on their unique electronic band structures have been performed adopting a field-effect transistor (FET), where the contact resistance represents the interaction betwe...

  • Feature Paper
  • Article
  • Open Access
6 Citations
2,301 Views
16 Pages

Chaos-Assisted Dynamical Tunneling in Flat Band Superwires

  • Anton M. Graf,
  • Ke Lin,
  • MyeongSeo Kim,
  • Joonas Keski-Rahkonen,
  • Alvar Daza and
  • Eric J. Heller

5 June 2024

Recent theoretical investigations have revealed unconventional transport mechanisms within high Brillouin zones of two-dimensional superlattices. Electrons can navigate along channels we call superwires, gently guided without brute force confinement....

  • Article
  • Open Access
36 Citations
9,651 Views
11 Pages

Electronic Energy Meter Based on a Tunnel Magnetoresistive Effect (TMR) Current Sensor

  • Enrique García Vidal,
  • Diego Ramírez Muñoz,
  • Sergio Iván Ravelo Arias,
  • Jaime Sánchez Moreno,
  • Susana Cardoso,
  • Ricardo Ferreira and
  • Paulo Freitas

26 September 2017

In the present work, the design and microfabrication of a tunneling magnetoresistance (TMR) electrical current sensor is presented. After its physical and electrical characterization, a wattmeter is developed to determine the active power delivered t...

  • Proceeding Paper
  • Open Access
1,041 Views
6 Pages

26 October 2023

The interaction of excitons with localized surface plasmons in hybrid nanostructures containing semiconductor quantum dots and metal nanoparticles, under specific conditions, may generate products with collective optical properties that have an abund...

  • Article
  • Open Access
2 Citations
3,360 Views
19 Pages

19 August 2022

Models describing the tunneling of electrons and holes through parabolic InxGa1−xN/GaN quantum well/LED structures with respect to strain were developed. The transmission coefficient, tunneling lifetime, and efficiency of LED structures were evaluate...

  • Article
  • Open Access
2 Citations
1,490 Views
19 Pages

Transport in a Two-Channel Nanotransistor Device with Lateral Resonant Tunneling

  • Ulrich Wulf,
  • Amanda Teodora Preda and
  • George Alexandru Nemnes

19 October 2024

We study field effect nanotransistor devices in the Si/SiO2 material system which are based on lateral resonant tunneling between two parallel conduction channels. After introducing a simple piecewise linear potential model, we calculate the quantum...

  • Article
  • Open Access
9 Citations
3,233 Views
13 Pages

Probing Methyl Group Tunneling in [(CH3)2NH2][Zn(HCOO)3] Hybrid Perovskite Using Co2+ EPR

  • Gediminas Usevičius,
  • Andrea Eggeling,
  • Ignas Pocius,
  • Vidmantas Kalendra,
  • Daniel Klose,
  • Mirosław Mączka,
  • Andreas Pöppl,
  • Jūras Banys,
  • Gunnar Jeschke and
  • Mantas Šimėnas

18 January 2023

At low temperature, methyl groups act as hindered quantum rotors exhibiting rotational quantum tunneling, which is highly sensitive to a local methyl group environment. Recently, we observed this effect using pulsed electron paramagnetic resonance (E...

  • Article
  • Open Access
6 Citations
5,143 Views
6 Pages

Effect of MgO Underlying Layer on the Growth of GaOx Tunnel Barrier in Epitaxial Fe/GaOx/(MgO)/Fe Magnetic Tunnel Junction Structure

  • Sai Krishna Narayananellore,
  • Naoki Doko,
  • Norihiro Matsuo,
  • Hidekazu Saito and
  • Shinji Yuasa

23 October 2017

We investigated the effect of a thin MgO underlying layer (~3 monoatomic layers) on the growth of GaOx tunnel barrier in Fe/GaOx/(MgO)/Fe(001) magnetic tunnel junctions. To obtain a single-crystalline barrier, an in situ annealing was conducted with...

  • Article
  • Open Access
1 Citations
2,394 Views
12 Pages

8 November 2021

In this study, the B3LYP hybrid density functional theory was used to investigate the electromechanical characteristics of C70 fullerene with and without point charges to model the effect of the surface of the gate electrode in a C70 single-electron...

  • Article
  • Open Access
8 Citations
4,923 Views
11 Pages

Quantum Enhancement of a S/D Tunneling Model in a 2D MS-EMC Nanodevice Simulator: NEGF Comparison and Impact of Effective Mass Variation

  • Cristina Medina-Bailon,
  • Hamilton Carrillo-Nunez,
  • Jaehyun Lee,
  • Carlos Sampedro,
  • Jose Luis Padilla,
  • Luca Donetti,
  • Vihar Georgiev,
  • Francisco Gamiz and
  • Asen Asenov

16 February 2020

As complementary metal-oxide-semiconductor (CMOS) transistors approach the nanometer scale, it has become mandatory to incorporate suitable quantum formalism into electron transport simulators. In this work, we present the quantum enhancement of a 2D...

  • Article
  • Open Access
1 Citations
1,250 Views
24 Pages

Optimization of Blasting Scheme of Gas-Containing Tunnel and Study on the Law of Gas Diffusion and Transportation

  • Chenglin Tian,
  • He Wang,
  • Xu Wang,
  • Tao Wang,
  • Yong Sun,
  • Qingbiao Wang,
  • Xuelong Li,
  • Zhenyue Shi and
  • Keyong Wang

20 February 2025

Gas control and extraction are essential for energy use and sustainable development. In order to study the gas diffusion and transportation law of high-gas tunnels after excavation and blasting and the influence of ventilation on gas concentration, a...

  • Article
  • Open Access
4 Citations
2,673 Views
14 Pages

3 October 2021

In this paper, the effect of early curing temperature on the tunnel fire resistance of self-compacting concrete (SCC) coated with aerogel cement paste (ACP) was studied. The physical properties in terms of the compressive strength, flexural strength,...

  • Article
  • Open Access
6 Citations
3,943 Views
32 Pages

Influence of an External Electric Field and Dissipative Tunneling on Recombination Radiation in Quantum Dots

  • Vladimir D. Krevchik,
  • Aleksei V. Razumov,
  • Mikhail B. Semenov,
  • Saygid U. Uvaysov,
  • Vladimir P. Kulagin,
  • Paweł Komada,
  • Saule Smailova and
  • Aisha Mussabekova

9 February 2022

The effect of an external electric field and dissipative tunneling on the spectral intensity of recombination radiation in a quantum dot with an A+ + e impurity complex (a hole localized on a neutral acceptor interacting with an electron localized in...

  • Article
  • Open Access
2 Citations
838 Views
15 Pages

Constructing Layered/Tunnel Biphasic Structure via Trace W-Substitution in Tunnel-Type Cathode for Elevating Sodium Ion Storage

  • Wenjing Shi,
  • Hengxiang Li,
  • Zihan Wang,
  • Lingyang Liu,
  • Yixin Feng,
  • Rui Qiao,
  • Ding Zhang,
  • Haibo Li,
  • Zhaoyang Wang and
  • Pengfang Zhang

Tunnel-type Na0.44MnO2 is extensively regarded as an appealing cathode for sodium-ion batteries due to its cost-effectiveness and excellent cycling performance. However, low theoretical capacity, resulting from insufficient Na+ storage sites, hinders...

  • Article
  • Open Access
1,486 Views
12 Pages

In this study, a model of a double-quantum-dot system driven by two-mode microwave photons is presented. The quantum master equation is derived from the system’s Hamiltonians, and the expression for the steady-state current is obtained. Electro...

  • Article
  • Open Access
22 Citations
5,075 Views
11 Pages

Use of High-Field Electron Injection into Dielectrics to Enhance Functional Capabilities of Radiation MOS Sensors

  • Dmitrii V. Andreev,
  • Gennady G. Bondarenko,
  • Vladimir V. Andreev and
  • Alexander A. Stolyarov

22 April 2020

The paper suggests a design of radiation sensors based on metal-oxide-semiconductor (MOS) structures and p-channel radiation sensitive field effect transistors (RADFET) which are capable to function under conditions of high-field tunnel injection of...

  • Article
  • Open Access
7 Citations
4,801 Views
15 Pages

Charge Transport across Proteins inside Proteins: Tunneling across Encapsulin Protein Cages and the Effect of Cargo Proteins

  • Riccardo Zinelli,
  • Saurabh Soni,
  • Jeroen J. L. M. Cornelissen,
  • Sandra Michel-Souzy and
  • Christian A. Nijhuis

13 January 2023

Charge transport across proteins can be surprisingly efficient over long distances—so-called long-range tunneling—but it is still unclear as to why and under which conditions (e.g., presence of co-factors, type of cargo) the long-range tu...

  • Article
  • Open Access
2 Citations
1,938 Views
17 Pages

Size- and Voltage-Dependent Electron Transport of C2N-Rings-Based Molecular Chains

  • Dian Song,
  • Jie Li,
  • Kun Liu,
  • Junnan Guo,
  • Hui Li and
  • Artem Okulov

7 December 2023

C2N-ring-based molecular chains were designed at the molecular level and theoretically demonstrated to show distinctive and valuable electron transport properties that were superior to the parent carbonaceous system and other similar nanoribbon-based...

  • Article
  • Open Access
4 Citations
4,099 Views
9 Pages

Controlling Tunneling Characteristics via Bias Voltage in Bilayer Graphene/WS2/Metal Heterojunctions

  • Zongqi Bai,
  • Sen Zhang,
  • Yang Xiao,
  • Miaomiao Li,
  • Fang Luo,
  • Jie Li,
  • Shiqiao Qin and
  • Gang Peng

21 April 2022

Van der Waals heterojunctions, formed by stacking two-dimensional materials with various structural and electronic properties, opens a new way to design new functional devices for future applications and provides an ideal research platform for explor...

  • Article
  • Open Access
4 Citations
2,136 Views
17 Pages

Optimization of Magnetic Tunnel Junction Structure through Component Analysis and Deposition Parameters Adjustment

  • Crina Ghemes,
  • Mihai Tibu,
  • Oana-Georgiana Dragos-Pinzaru,
  • Gabriel Ababei,
  • George Stoian,
  • Nicoleta Lupu and
  • Horia Chiriac

25 May 2024

In this work, we focus on a detailed study of the role of each component layer in the multilayer structure of a magnetic tunnel junction (MTJ) as well as the analysis of the effects that the deposition parameters of the thin films have on the perform...

  • Review
  • Open Access
20 Citations
6,140 Views
17 Pages

Magnetoresistance Effect and the Applications for Organic Spin Valves Using Molecular Spacers

  • Xiannian Yao,
  • Qingqing Duan,
  • Junwei Tong,
  • Yufang Chang,
  • Lianqun Zhou,
  • Gaowu Qin and
  • Xianmin Zhang

3 May 2018

Organic spin devices utilizing the properties of both spin and charge inherent in electrons have attracted extensive research interest in the field of future electronic device development. In the last decade, magnetoresistance effects, including gian...

  • Concept Paper
  • Open Access
8 Citations
5,141 Views
16 Pages

19 September 2016

This article is not a review in the conventional sense. Rather, it is a monographic study of the implications of detection in Al-Cu-Fe quasicrystals of the electronic heat capacity contributions associated with the two-level electron excitations. Our...

  • Article
  • Open Access
7 Citations
3,477 Views
12 Pages

Variable-Barrier Quantum Coulomb Blockade Effect in Nanoscale Transistors

  • Pooja Yadav,
  • Soumya Chakraborty,
  • Daniel Moraru and
  • Arup Samanta

13 December 2022

Current–voltage characteristics of a quantum dot in double-barrier configuration, as formed in the nanoscale channel of silicon transistors, were analyzed both experimentally and theoretically. Single electron transistors (SET) made in a SOI-FE...

  • Article
  • Open Access
14 Citations
2,030 Views
16 Pages

3 September 2023

In this research study, the effects of different parameters on the electron transfer rate from three quantum dots (QDs), CdSe, CdS, and CdTe, on three metal oxides (MOs), TiO2, SnO2, and SnO2, in quantum-dot-sensitized solar cells (QDSSCs) with porou...

  • Review
  • Open Access
77 Citations
16,620 Views
25 Pages

Vertical Transistors Based on 2D Materials: Status and Prospects

  • Filippo Giannazzo,
  • Giuseppe Greco,
  • Fabrizio Roccaforte and
  • Sushant S. Sonde

31 January 2018

Two-dimensional (2D) materials, such as graphene (Gr), transition metal dichalcogenides (TMDs) and hexagonal boron nitride (h-BN), offer interesting opportunities for the implementation of vertical transistors for digital and high-frequency electroni...

  • Article
  • Open Access
1 Citations
2,174 Views
9 Pages

20 January 2021

Formation of gold nanosized particles supported by aluminum oxide film grown on Mo(110) substrate and oxidation of carbon monoxide molecules on their surface have been in-situ studied in ultra-high vacuum by means of Auger electron spectroscopy (AES)...

  • Article
  • Open Access
4 Citations
2,167 Views
24 Pages

Reverse electron transfer in mitochondrial complex II (CII) plays an important role in hypoxia/anoxia, in particular, in ischemia, when the blood supply to an organ is disrupted and oxygen is not available. A computational model of CII was developed...

  • Article
  • Open Access
3 Citations
2,845 Views
13 Pages

7 May 2023

In this study, we propose a novel silicon (Si)/silicon carbide (4H–SiC) heterojunction vertical double–diffused MOSFET with an electron tunneling layer (ETL) (HT–VDMOS), which improves the specific on–state resistance (RON), a...

  • Article
  • Open Access
8 Citations
2,552 Views
16 Pages

Single-Charge Tunneling in Codoped Silicon Nanodevices

  • Daniel Moraru,
  • Tsutomu Kaneko,
  • Yuta Tamura,
  • Taruna Teja Jupalli,
  • Rohitkumar Shailendra Singh,
  • Chitra Pandy,
  • Luminita Popa and
  • Felicia Iacomi

22 June 2023

Silicon (Si) nano-electronics is advancing towards the end of the Moore’s Law, as gate lengths of just a few nanometers have been already reported in state-of-the-art transistors. In the nanostructures that act as channels in transistors or dep...

  • Article
  • Open Access
5 Citations
3,303 Views
10 Pages

11 February 2022

The high-performance room-temperature-operating Si single-electron transistors (SETs) were devised in the form of the multiple quantum-dot (MQD) multiple tunnel junction (MTJ) system. The key device architecture of the Si MQD MTJ system was self-form...

  • Article
  • Open Access
2 Citations
2,167 Views
15 Pages

Performance Study of Ultraviolet AlGaN/GaN Light-Emitting Diodes Based on Superlattice Tunneling Junction

  • Zhuang Zhao,
  • Yang Liu,
  • Peixian Li,
  • Xiaowei Zhou,
  • Bo Yang,
  • Yingru Xiang and
  • Junchun Bai

28 December 2024

In this study, we aim to enhance the internal quantum efficiency (IQE) of AlGaN-based ultraviolet (UV) light-emitting diodes (LEDs) by using the short-period AlGaN/GaN superlattice as a tunnel junction (TJ) to construct polarized structures. We analy...

  • Article
  • Open Access
6 Citations
2,787 Views
9 Pages

8 April 2022

It is shown that a simple metal–oxide–semiconductor (MOS) structure with highly doped silicon substrate can exhibit current–voltage hysteresis effects related to sudden rises and drops in the flowing electric current. Experimental c...

  • Article
  • Open Access
40 Citations
8,532 Views
24 Pages

5 December 2014

Many intelligent transportation system applications require accurate, reliable, and continuous vehicle positioning. How to achieve such positioning performance in extended GPS-denied environments such as tunnels is the main challenge for land vehicl...

of 5