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In this work, we analyse the reverse current mechanisms in GaN Schottky barrier diodes (SBDs) grown on sapphire and native GaN substrates. For the sapphire-substrate sample, two conduction mechanisms are identified: Poole-Frenkel emission…

应用物理 · 物理学 2026-01-12 B. Orfao , M. Abou Daher , H. Bouillaud , Y. Roelens , P. Prystawko , R. Kucharski , M. Bockowski , M. Zaknoune

In this letter, we demonstrate a lateral AlGaN/GaN Schottky barrier diode (SBD) on sapphire substrate with low turn-on voltage (Von) and high breakdown voltage (VBK). By using a double barrier anode (DBA) structure formed by the mixture of…

In this paper, a transient delayed rising and fall time of $\beta$-Ga$_2$O$_3$ NMs Schottky barrier diodes (SBDs) formed on four different substrates (diamond, Si, sapphire, and polyimide) were measured using a sub-micron second resolution…

应用物理 · 物理学 2022-07-27 Junyu Lai , Jung-Hun Seo

We report on the fabrication and temperature-dependent characterization of MOCVD-grown quasi-vertical AlN Schottky barrier diodes (SBDs) on bulk AlN substrates. The SBDs exhibited high current densities exceeding 2 kA/cm2 at 10 V, with a…

We investigated the origin of the high reverse leakage current in light emitting diodes (LEDs) based on (In,Ga)N/GaN nanowire (NW) ensembles grown by molecular beam epitaxy on Si substrates. To this end, capacitance deep level transient…

介观与纳米尺度物理 · 物理学 2016-02-17 M. Musolino , D. van Treeck , A. Tahraoui , L. Scarparo , C. De Santi , M. Meneghini , E. Zanoni , L. Geelhaar , H. Riechert

600V/20A 4H-SiC Schottky barrier diodes (SBD) were fabricated to investigate the effect of key processing steps, especially before and after a formation of Schottky contact, on the electrical performances of SBD and on a long-term…

材料科学 · 物理学 2015-06-18 In-Ho Kang , Sang-Cheol Kim , Jung-Hyeon Moon , Wook Bahng , Nam-Kyun Kim

Ga2O3 Schottky barrier diodes featuring a field plate and a composite SiO2/SiNx dielectric layer beneath the field plate were fabricated, achieving a breakdown voltage of 2.4 kV at room temperature. Electrical performance and degradation…

Vertical (-201) and (010) beta-Ga2O3 Schottky barrier diodes (SBDs) were fabricated on single-crystal substrates grown by edge-defined film-fed growth (EFG) method. High resolution X-ray diffraction (HRXRD) and atomic force microscopy (AFM)…

材料科学 · 物理学 2018-06-06 Houqiang Fu , Hong Chen , Xuanqi Huang , Izak Baranowski , Jossue Montes , Tsung-Han Yang , Yuji Zhao

Schottky barrier field-effect transistors (SBFETs) based on few and mono layer phosphorene are simulated by the non-equilibrium Green's function formalism. It is shown that scaling down the gate oxide thickness results in pronounced…

介观与纳米尺度物理 · 物理学 2014-08-22 Runlai Wan , Xi Cao , Jing Guo

The electrical behavior of Ni Schottky barrier formed onto heavily doped (ND>1019 cm-3) n-type phosphorous implanted silicon carbide (4H-SiC) was investigated, with a focus on the current transport mechanisms in both forward and reverse…

For high-electron-mobility transistors based on two-dimensional electron gas (2DEG) within a quantum well, such as those based on AlGaN/GaN heterostructure, a Schottky-gate is used to maximize the amount of charge that can be induced and…

We report on the electronic transport properties of multiple-gate devices fabricated from undoped silicon nanowires. Understanding and control of the relevant transport mechanisms was achieved by means of local electrostatic gating and…

介观与纳米尺度物理 · 物理学 2012-08-08 Massimo Mongillo , Panayotis Spathis , Georgios Katsaros , Pascal Gentile , Silvano De Franceschi

In this letter, we demonstrate high-performance lateral AlGaN/GaN Schottky barrier diodes (SBD) on Si substrate with a recessed-anode structure. The optimized rapid etch process provides results in improving etching quality with a 0.26-nm…

The low temperature electrical behavior of adjacent silicide/Si Schottky contacts with or without dopant segregation is investigated. The electrical characteristics are very well modeled by thermionic-field emission for non-segregated…

We have measured the very low temperature (down to 30 mK) subgap resistance of Titanium Nitride (Superconductor, Tc = 4.6 K)/highly doped Silicon (Semiconductor) SIN junction (the insulating layer stands for the Schottky barrier). As the…

介观与纳米尺度物理 · 物理学 2009-10-31 F. Lefloch , D. Quirion , M. Sanquer

Reverse-biased graphene (Gr)/semiconductor Schottky diodes exhibit much enhanced sensitivity for gas sensing. However, carrier transport across the junctions is not fully understood yet. Here, Gr/SiC, Gr/GaAs and Gr/Si Schottky junctions…

材料科学 · 物理学 2015-05-20 D. Tomer , S. Rajput , L. J. Hudy , C. H. Li , L. Li

A systematic investigation of the electrical characteristics of \b{eta}-Ga2O3 Schottky barrier diodes (SBDs) has been conducted under high-dose 60Co gamma radiation, with total cumulative doses reaching up to 5 Mrad (Si). Initial exposure…

应用物理 · 物理学 2025-10-21 Saleh Ahmed Khan , Sudipto Saha , Uttam Singisetti , A F M Anhar Uddin Bhuiyan

We investigate the origin of the depolarization rates in ultrathin adsorbate-stabilized ferroelectric wires. By applying density functional theory calculations and analytic modeling, we demonstrate that the depolarization results from the…

材料科学 · 物理学 2015-02-16 Y. Qi , J. M. P. Martirez , Wissam A. Saidi , J. J. Urban , W. S. Yun , J. E. Spanier , A. M. Rappe

This letter reports the demonstration of lateral AlN Schottky barrier diodes (SBDs) on single-crystal AlN substrates by metalorganic chemical vapor deposition (MOCVD) with an ultra-low ideality factor ({\eta}) of 1.65, a breakdown voltage…

应用物理 · 物理学 2024-06-25 Dinusha Herath Mudiyanselage , Dawei Wang , Ziyi He , Bingcheng Da , Houqiang Fu

The current-voltage characteristics of thin wires are often observed to be nonlinear, and this behavior has been ascribed to Schottky barriers at the contacts. We present electronic transport measurements on GaN nanorods and demonstrate…

材料科学 · 物理学 2009-11-13 A. Alec Talin , François Léonard , B. S. Swartzentruber , Xin Wang , Stephen D. Hersee
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