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The modulation of channel conductance in field-effect transistors (FETs) via metal-oxide-semiconductor (MOS) structures has revolutionized information processing and storage. However, the limitations of silicon-based FETs in electrical…

Mobility is a key parameter for SnO2, which is extensively studied as a practical transparent oxide n-type semiconductor. In experiments, the mobility of electrons in bulk SnO2 single crystals varies from 70 to 260 cm2V-1s-1 at room…

Materials Science · Physics 2022-11-11 Zhen Li , Patrizio Graziosi , Neophytos Neophytou

Ability to understand and model the performance limits of nanowire transistors is the key to design of next generation devices. Here, we report studies on high-mobility junction-less gate-all-around nanowire field effect transistor with…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Aniruddha Konar , John Mathew , Kaushik. Nayak , Mohit. Bajaj , Rajan K. Pandey , Sajal Dhara , K. V. R. M. Murali , Mandar Deshmukh

Further development of the graphene field-effect transistors (GFETs) for high-frequency electronics requires accurate evaluation and study of the mobility of charge carriers in a specific device. Here, we demonstrate that the mobility in…

We report the performance of field-effect transistors (FETs), comprised of mono-layer of recently synthesized layered two-dimensional MoSi2N_4 as channel material, using the first principles quantum transport simulations. The devices'…

Mesoscale and Nanoscale Physics · Physics 2022-05-11 Keshari Nandan , Barun Ghosh , Amit Agarwal , Somnath Bhowmick , Yogesh S. Chauhan

A detector has been constructed for measuring ion mobilities of gas mixtures at atmospheric pressure and room temperature. The detector consists of a standard triple GEM amplification region and a drift region where ions drift. A method has…

Instrumentation and Detectors · Physics 2018-07-23 Alexander Deisting , Chilo Garabatos , Alexander Szabo

We report the observation of an electron gas in a SiGe/Si/SiGe quantum well with maximum mobility up to 240 m^2/Vs, which is noticeably higher than previously reported results in silicon-based structures. Using SiO, rather than Al_2O_3, as…

Mesoscale and Nanoscale Physics · Physics 2015-03-06 M. Yu. Melnikov , A. A. Shashkin , V. T. Dolgopolov , S. -H. Huang , C. W. Liu , S. V. Kravchenko

Strain engineering is an important method for tuning the properties of semiconductors and has been used to improve the mobility of silicon transistors for several decades. Recently, theoretical studies have predicted that strain can also…

Materials Science · Physics 2022-10-07 Isha M. Datye , Alwin Daus , Ryan W. Grady , Kevin Brenner , Sam Vaziri , Eric Pop

Electronic and dielectric properties of vapor-phase grown MoS_{2} have been investigated in metal/MoS_{2}/silicon capacitor structures by capacitance-voltage and conductancevoltage techniques. Analytical methods confirm the MoS_{2} layered…

Materials Science · Physics 2019-07-19 M. Belete , S. Kataria , U. Koch , M. Kruth , C. Engelhard , J. Mayer , O. Engström , M. C. Lemme

Topological insulators have been predicted to exhibit a variety of interesting phenomena including a quantized magnetoelectric response and novel spintronics effects due to spin textures on their surfaces. However, experimental observation…

We study the thermoelectric properties of bulk $MoSe_2$ within relaxation time approximation including electron-phonon and ionized impurity interactions using first-principles calculations at room temperatures. The anisotropy of this…

Materials Science · Physics 2022-08-30 Md Golam Rosul , Mona Zebarjadi

Al$_{0.68}$Sc$_{0.32}$N (AlScN) has gained attention for its outstanding ferroelectric properties, including a high coercive field and high remnant polarization. Although AlScN-based ferroelectric field-effect transistors (FETs) for memory…

We have surveyed the in-plane transport properties of the graphene twist bilayer using (i) a low-energy effective Hamiltonian for the underlying electronic structure, (ii) an isotropic elastic phonon model, and (iii) the linear Boltzmann…

Mesoscale and Nanoscale Physics · Physics 2016-12-21 N. Ray , M. Fleischmann , D. Weckbecker , S. Sharma , O. Pankratov , S. Shallcross

We propose a model for explaining the recent results obtained by J. Schon et al (1,2) on transport properties of electrons and holes in one plane of CuO2 in a layered cuprate (CaCuO2) where the carriers are created using a field effect…

Superconductivity · Physics 2007-05-23 J. Bok , J. Bouvier

Monolayer MoS2, MoSe2, MoTe2, WS2, WSe2, and black phosphorous field effect transistors (FETs) operating in the low-voltage (LV) regime (0.3V) with geometries from the 2019 and 2028 nodes of the 2013 International Technology Roadmap for…

Mesoscale and Nanoscale Physics · Physics 2016-11-22 Somaia Sarwat Sylvia , Khairul Alam , Roger K Lake

Recent reports highlight the potential of tin-based perovskite semiconductors for high-performance p-type field-effect transistors (FETs) with mobilities exceeding 20 cm2V-1s-1. However, these high mobilities--often obtained via two-probe…

Novel devices such as tunneling field-effect transistors (FETs) and ferroelectric FETs have been demonstrated to break the subthreshold swing (SS) limit with sub-60 mV/decade switching for further low voltage/low power applications. In this…

Applied Physics · Physics 2020-05-19 Peng Cui , Guangyang Lin , Jie Zhang , Yuping Zenga

The influence of an external electric field on single-layer transition-metal dichalcogenides TX2 with T = Mo, W and X = S, Se (MoWSeS) have been investigated by means of density-functional theory within two-dimensional periodic boundary…

Materials Science · Physics 2017-09-13 Nourdine Zibouche , Pier Philipsen , Thomas Heine , Agnieszka Kuc

The transport properties of high-performance thin-film transistors (TFT) made with a regio-regular poly(thiophene) semiconductor (PQT-12) are reported. The room-temperature field-effect mobility of the devices varied between 0.004 cm2/V s…

Materials Science · Physics 2009-11-10 A. Salleo , T. W. Chen , A. R. Voelkel , Y. Wu , P. Liu , B. S. Ong , R. A. Street

The measurement of acetone in human breath, a known biomarker for diabetes, can act as an effective screening method for diabetes. While gas chromatography and mass spectroscopy based methods can detect gases in low concentration, they are…

Applied Physics · Physics 2019-06-26 Sumant Sarkar , Alison Viegas , Srinivasa R. Raghavan
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