Results 61 to 70 of about 22,253 (240)

Conduction mechanisms of the reverse leakage current of β-Ga2O3 Schottky barrier diodes

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2019
In order to determine the temperature dependence of the reverse transition voltage between thermionic emission and tunneling mechanisms, a numerical method has been applied for β-Ga2O3 Schottky barrier diodes. The main idea of this method is based on the
A. Latreche
doaj   +1 more source

ITER relevant multi-emissive sheaths at normal magnetic field inclination

Nuclear Fusion, 2022
Reliable modeling of macroscopic melt motion induced by fast transients requires the accurate and computationally efficient description of the emitted current density that escapes to the pre-sheath.
P. Tolias, M. Komm, S. Ratynskaia, A. Podolnik   +3 more
doaj   +1 more source

Interfacial Synergy in a Band‐Aligned Low‐Dimensional Heterojunction Toward Broadband Photodetection

Advanced Science, EarlyView.
Monolithically integrating sensing and communication, a Ta2NiSe5/Sb2Te3 heterojunction achieves visible‐to‐near‐infrared photovoltaics with high‐speed terahertz photo‐thermoelectric detection at room temperature. By engineering a Type‐II van der Waals heterojunction, we overcome the intrinsic spectral limitations and disparate physical requirements of ...
Yuanfeng Wen, Kening Xiao, Yao Yang, Mengjie Jiang, Libo Zhang, Shicong Hou, Hang Ma, Yunduo Zhang, Wenqi Mo, Yiran Tan, Bolang Peng, Jinqiu Huang, Xueyuan Wei, Chunming Liu, Bangjian Zhao, Jiale He, Qing Li, Songyuan Ding, Yi Zhou, Guanhai Li, Xiaoshuang Chen   +20 more
wiley   +1 more source

Thermionic emission in gold nanoparticles under femtosecond laser irradiation observed with photoemission electron microscopy

AIP Advances, 2019
This study reports that thermionic emission can dominate over multi-photon ionization in gold nanoparticles under femtosecond laser irradiation. The brightness of individual particles observed with photoemission electron microscopy increased steeply for ...
Bochao Li, Chang Yang, Hao Li, Boyu Ji, Jingquan Lin, Toshihisa Tomie   +5 more
doaj   +1 more source

Drifting subpulses and inner acceleration regions in radio pulsars

, 2003
The classical vacuum gap model of Ruderman & Sutherland, in which spark-associated subbeams of subpulse emission circulate around the magnetic axis due to the EB drift, provides a natural and plausible physical mechanism of the subpulse drift phenomenon.
Abrahams, Arons, Arons, Asgekar, Asseo, Backer, Beskin, Biggs, Cheng, Deshpande, Deshpande, Fushiki, G. I. Melikidze, Gil, Gil, Gil, Gil, Gil, Gil, Goldreich, Hernquist, J. Gil, Jessner, Jones, Kazbegi, Kijak, Lai, Lyne, Melikidze, Mitra, Muslimov, Nowakowski, Rankin, Rankin, Ruderman, Schaaf, Sieber, Stappers, U. Geppert, Usov, Usov, Usov, Yakovlev, Zhang, Zhang   +44 more
core   +1 more source

Modulating Persistent Photoconductivity through Barrier Engineering for High‐performance and Multifunctional Two‐dimensional Optoelectronic Devices

Advanced Science, EarlyView.
Schottky barrier engineering using van der Waals contacts enables effective modulation of persistent photoconductivity (PPC) in optoelectronic devices. A high persistent photoconductivity gain (PPCG) (307.6%) is achieved in a high‐barrier Au/MoS2 junction, supporting photomemory and optoelectronic synaptic behaviors. A low PPCG (4.72%) is achieved in a
Panpan Huo, Xinhao Zhang, Xiangyong Cui, Yeming Wang, Dong Zhou, Baoyuan Man, Il Jeon, Won Jong Yoo, Cheng Yang   +8 more
wiley   +1 more source

Reverse I–V–T analysis of Ti and Ni Schottky diodes on 6H-SiC with three contact areas [PDF]

AIP Advances
This work investigates the reverse-bias electrical behavior of Ti and Ni Schottky diodes fabricated on n-type 6H-SiC epitaxial layers, with contact areas of three different sizes: large (1.6 × 1.6 mm2), medium (1.6 × 0.4 mm2), and small (0.4 × 0.4 mm2 ...
Elhachani Bounab, Abdelaziz Rabehi, Baya Zebentout, Schahrazade Tizi, Abdullah K. Alanazi, Takele Ferede Agajie, Zineb Benamara   +6 more
doaj   +1 more source

Thermal assisted up-conversion electroluminescence in quantum dot light emitting diodes

Nature Communications, 2022
How holes are injected into quantum dots at sub-bandgap bias has puzzled researchers for years. Here, authors show, using temperature-dependent electroluminescence (EL) and theoretical analysis, such injection occurs via thermal-assisted thermionic ...
Qiang Su, Shuming Chen
doaj   +1 more source

Multiparametric Bioresorbable Sensor for Doxorubicin Detection via Molecularly Imprinted Synthetic Receptors

Advanced Science, EarlyView.
A biodegradable molecularly imprinted polymer porous silica sensor enables dual optical readout of doxorubicin via fluorescence and effective optical thickness shifts. The combined transduction mechanisms provide enhanced reliability and quantitative accuracy over clinically relevant concentrations, representing a step toward transient implantable ...
Martina Corsi, Tiziano Di Giulio, Eleonora Vandini, Muhammad Ibrar Asif, Eleonora Daini, Antonietta Vilella, Giuseppina Leo, Alessandra Ottani, Cosimino Malitesta, Daniela Giuliani, Elisabetta Mazzotta, Giuseppe Barillaro   +11 more
wiley   +1 more source

Low Temperature Synthesis of Rare-Earth Hexaborides for Solar Energy Conversion

MATEC Web of Conferences, 2014
Thermionic energy conversion is an ideal way of converting concentrated solar energy into electricity. Developing suitable emitter/collector materials, with optimum work functions whilst being able to withstand elevated temperatures under high vacuum ...
Hasan Muhammad M., Sugo Heber, Kisi Erich H.   +2 more
doaj   +1 more source