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Thermal rectification ratios of solid-liquid phase change thermal diodes (SL-PCTDs) are not sustainable beyond a certain temperature bias, necessitating reasonably compatible designs. Manipulating the heat transfer in the forward and…

Applied Physics · Physics 2020-07-24 Zhaonan Meng , Raza Gulfam , Peng Zhang , Fei Ma

We describe optical characterisation of a Strained Silicon Cold Electron Bolometer (CEB), operating on a $350~\mathrm{mK}$ stage, designed for absorption of millimetre-wave radiation. The silicon Cold Electron Bolometer utilises Schottky…

We measured the low temperature subgap resistance of titanium nitride (superconductor, Tc=4.6K)/highly doped silicon (degenerated semiconductor) SIN junctions, where I stands for the Schottky barrier. At low energies, the subgap conductance…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 D. Quirion , F. Lefloch , M. Sanquer

We present a Raman-based Distributed Temperature Sensor (RDTS) with centimetre-scale resolution for thermographic analysis of electronic circuits. Temperature is measured along a single-mode fiber routed across a custom printed circuit…

We present a spectroscopic system constituted by a Silicon Drift Detector (SDD) coupled to a CMOS charge sensitive preamplifier, named SIRIO, specifically designed to reach ultimate low noise levels. The SDD, with an active area of 13 mm ,…

Narrow-channel accumulated body nMOSFET devices with p-type side-gates surrounding the active area have been electrically characterized between 100 and 400 K with varied side-gate biasing (Vside). The subthreshold slope (SS) and drain…

To investigate the role of the interface state on the physical properties of Schottky contacts, Co/n-Ge Schottky diodes that have undergone various cleaning methods (HF etching and in-situ thermal cleaning) were studied by Transmission…

Materials Science · Physics 2013-06-04 Luc Lajaunie , Marie-Laure David , Jean-François Barbot

In view of a study on spin-polarized photodiodes, the helicity-dependent photocurrent in a Fe/x-AlOx/p-GaAs Schottky diode is measured at room temperature by illuminating a circularly polarized light beam (785 nm) either horizontally on the…

Mesoscale and Nanoscale Physics · Physics 2017-02-28 Ronel Christian Roca , Nozomi Nishizawa , Kazuhiro Nishibayashi , Hiro Munekata

Cobalt silicide (CoSi2) islands have been formed by the deposition of thin films (~0.1 to 0.3 nm) of cobalt on clean Si(111) and Si(100) substrates in ultrahigh vacuum (UHV) followed by annealing to ~880 degrees C. Conducting atomic force…

Mesoscale and Nanoscale Physics · Physics 2010-07-29 Joseph L. Tedesco , J. E. Rowe , Robert J. Nemanich

We show that in a simple experiment at undergraduate level, suitable to be performed in classes of science and engineering students, it is possible to test accurately, on a popular 1N4148 p-n diode, the range of the junction currents where…

Physics Education · Physics 2016-08-22 Enrico Cataldo , Alberto Di Lieto , Francesco Maccarrone , Giampiero Paffuti

This paper presents a fully-integrated CMOS temperature sensor for densely-distributed thermal monitoring in systems on chip supporting dynamic voltage and frequency scaling. The sensor front-end exploits a sub-threshold PMOS-based circuit…

Systems and Control · Electrical Eng. & Systems 2022-09-05 Benjamin Zambrano , Esteban Garzón , Sebastiano Strangio , Giuseppe Iannaccone , Marco Lanuzza

Silicon carbide (SiC) Schottky diodes 21 mum thick with small surfaces and high N-dopant concentration have been used to detect alpha particles and low energy light ions. In particular 12C and 16O beams at incident energies between 5 and 18…

Nuclear Experiment · Physics 2009-11-11 M. De Napoli , G. Raciti , E. Rapisarda , C. Sfienti

Phase-sensitive optical coherence tomography (PhS-OCT) enables precise, contactless measurements of temperature-dependent changes in transparent solids. In this work, we used a common-path spectral-domain OCT system to measure optical path…

Resistance thermometry provides a time-tested method for taking temperature measurements. However, fundamental limits to resistance-based approaches has produced considerable interest in developing photonic temperature sensors to leverage…

Optics · Physics 2015-08-06 Haitan Xu , Mohammad Hafezi , J. Fan , J. M. Taylor , G. F. Strouse , Zeeshan Ahmed

We show the operation of a Cu/Al_2O_3/Cu/n-Si hot-electron transistor for the straightforward determination of a metal/semiconductor energy barrier height even at temperatures below carrier-freeze out in the semiconductor. The hot-electron…

Mesoscale and Nanoscale Physics · Physics 2017-02-08 Subir Parui , Ainhoa Atxabal , Mário Ribeiro , Amilcar Bedoya-Pinto , Xiangnan Sun , Roger Llopis , Fèlix Casanova , Luis E. Hueso

Efficient and compact frequency converters are essential for frequency stabilization of terahertz sources. In this paper, we present a 3.5-THz, x6-harmonic, integrated Schottky diode mixer operating at room temperature. The designed…

Surface temperature measurements were performed with a Scanning Thermal Microscope mounted with a thermoresistive wire probe of micrometrSurface temperature measurements were performed with a Scanning Thermal Microscope mounted with a…

The Fine Pixel CCD (FPCCD) is one of the candidate sensor technologies for the ILC vertex detector. It will be located near interaction point and require high radiation tolerance. It will thus be operated at -40 degree C to improve…

Instrumentation and Detectors · Physics 2016-03-09 S. Murai , A. Ishikawa , T. Sanuki , A. Miyamoto , Y. Sugimoto , C. Constantino , H. Sato , H. Ikeda , Y. Hitoshi

The Schottky barrier of a metal-semiconductor junction is one of the key quantities affecting the charge transport in a transistor. The Schottky barrier height depends on several factors, such as work function difference, local atomic…

Mesoscale and Nanoscale Physics · Physics 2020-12-09 Line Jelver , Daniele Stradi , Kurt Stokbro , Karsten Wedel Jacobsen

This work demonstrates quasi-vertical beta-Ga2O3 Schottky barrier diodes (SBDs) fabricated on c-plane sapphire using an all-LPCVD, plasma-free process integrating epitaxial growth of high-quality beta-Ga2O3 and in-situ Ga-assisted etching.…

Applied Physics · Physics 2025-10-21 Saleh Ahmed Khan , Ahmed Ibreljic , A F M Anhar Uddin Bhuiyan