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In the nitrogen-incorporated ultrananocrystalline diamond ((N)UNCD) films, representing an $n$-type highly conductive two-phase material comprised of $sp^3$ diamond grains and $sp^2$-rich graphitic grain boundaries, the current is carried…

材料科学 · 物理学 2019-06-20 Oksana Chubenko , Stanislav S. Baturin , Sergey V. Baryshev

Light scattering detection in the near field, a rapidly expanding family of scattering techniques, has recently proved to be an appropriate procedure for performing dynamic measurements. Here we report an innovative algorithm, based on the…

The recent fabrication of graphene nanoribbon (GNR) field-effect transistors poses a challenge for first-principles modeling of carbon nanoelectronics due to many thousand atoms present in the device. The state of the art quantum transport…

介观与纳米尺度物理 · 物理学 2010-04-28 Denis A. Areshkin , Branislav K. Nikolic

We investigate the field emission properties of nitrogenated and boronated carbon nanotubes using time-dependent density functional theory, were the wave function propagation is performed using the Crank-Nicholson algorithm. We extract the…

材料科学 · 物理学 2015-05-20 Sherif Tawfik , Salah Sheikh , Noha Salem

The present generation of Micro-Pattern Gaseous Detectors (MPGDs) are radiation hard detectors, capable of detecting efficiently particle rates of several MHz/cm$^2$ , while exhibiting good spatial resolution ($\leq$ 50 $\mu$m) and modest…

High resolution molecular dynamics simulations with full Coulomb interactions of electrons are used to investigate field emission in planar nanodiodes. The effects of space charge and emitter radius are examined and compared to previous…

等离子体物理 · 物理学 2015-03-16 Kristinn Torfason , Agust Valfells , Andrei Manolescu

High throughput screening of materials for technologically relevant areas, like identification of better catalysts, electronic materials, ceramics for high temperature applications and drug discovery, is an emerging topic of research. To…

化学物理 · 物理学 2020-05-04 Edgar Josué Landinez Borda , Amit Samanta

Recent detector concepts at future linear or circular $e^- e^+$ colliders emphasize the benefits of time-of-flight measurements for particle identification of long-lived charged hadrons. That method relies on a precise estimation of the…

仪器与探测器 · 物理学 2021-09-16 Winfried A. Mitaroff

The increasing importance of carbon capture technologies for deployment in remediating CO2 emissions, and thus the necessity to improve capture materials to allow scalability and efficiency, faces the challenge of materials development,…

Diamond detectors are attractive for operation in harsh radiation environments because they combine radiation tolerance, fast signal formation, and low leakage current. Realistic detector-response simulations require an accurate description…

The paper reports on top-down nanofabricated Ni3Si2 nanowires and tests of their electron field emission capabilities. The results include low turn on electric field, moderate work function, and the field enhancement factor, customizable…

介观与纳米尺度物理 · 物理学 2022-01-12 Amina B. Belkadi , Emma Zeng , A. F. Isakovic

Carbon footprint optimization (CFO) is important for sustainable heavy-duty e-truck transportation. We consider the CFO problem for timely transportation of e-trucks, where the truck travels from an origin to a destination across a national…

数据结构与算法 · 计算机科学 2023-08-22 Junyan Su , Qiulin Lin , Minghua Chen , Haibo Zeng

This study presents an innovative approach to creating a dynamic, AI based emission inventory system for use with the Weather Research and Forecasting model coupled with Chemistry (WRF Chem), designed to simulate vehicular and other…

In this paper, we model the evolution and self-assembly of randomly oriented carbon nanotubes (CNTs), grown on a metallic substrate in the form of a thin film for field emission under diode configuration. Despite high output, the current in…

材料科学 · 物理学 2010-04-14 N. Sinha , D. Roy Mahapatra , J. T. W. Yeow , R. V. N. Melnik , D. A. Jaffray

A Resistive Plate Chamber using Diamond-Like Carbon electrodes (DLC-RPC) has been developed as a background tagging detector in the MEG$~$II experiment. The DLC-RPC is planned to be installed in a high-intensity and low-momentum muon beam.…

仪器与探测器 · 物理学 2025-06-13 Masato Takahashi , Sei Ban , Weiyuan Li , Atsuhiko Ochi , Wataru Ootani , Atsushi Oya , Hiromu Suzuki , Kensuke Yamamoto

Efficient and controlled charge transport in networks of semiconducting single-walled carbon nanotubes is the basis for their application in electronic devices, especially in field-effect transistors and thermoelectrics. The recent advances…

应用物理 · 物理学 2021-11-19 Nicolas F. Zorn , Jana Zaumseil

We demonstrate an atom detector based on field ionization and subsequent ion counting. We make use of field enhancement near tips of carbon nanotubes to reach extreme electrostatic field values of up to 9x10^9 V/m, which ionize ground state…

量子气体 · 物理学 2015-05-14 B. Grüner , M. Jag , A. Stibor , G. Visanescu , M. Häffner , D. Kern , A. Günther , J. Fortágh

We present a comprehensive framework for interpreting electron recoil signals induced by fast-moving dark matter (DM), applicable across a wide range of theoretically motivated models. Amid both null results in conventional weakly…

高能物理 - 唯象学 · 物理学 2025-11-07 Haider Alhazmi , Doojin Kim , Kyoungchul Kong , Aishah Sumayli

High frequency conductivity of hot electrons in an undoped single walled achiral carbon nanotubes (CNTs) under the influence of ac-dc driven fields is considered. We investigated semiclassically by solving the Boltzmann's transport equation…

介观与纳米尺度物理 · 物理学 2016-04-20 M. Amekpewu , S. Y. Mensah , R. Musah , N. G. Mensah , S. S. Abukari , K. A. Dompreh

In papers on cold field electron emission from large area field emitters (LAFEs), it has become widespread practice to publish a misleading Fowler-Nordheim-type (FN-type) equation. This equation over-predicts the LAFE-average current…

介观与纳米尺度物理 · 物理学 2018-12-18 Richard G. Forbes