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We demonstrate dual-gated $p$-type field-effect transistors (FETs) based on few-layer tungsten diselenide (WSe$_2$) using high work-function platinum source/drain contacts, and a hexagonal boron nitride top-gate dielectric. A device…

Field-effect transistors made of wide-bandgap semiconductors can operate at high voltages, temperatures and frequencies with low energy losses, and have been of increasing importance in power and high-frequency electronics. However, the…

Advances in complex oxide heteroepitaxy have highlighted the enormous potential of utilizing strain engineering via lattice mismatch to control ferroelectricity in thin-film heterostructures. This approach, however, lacks the ability to…

A counterclockwise hysteresis is observed at room temperature in the transfer characteristics of SrTiO$_3$ (STO) gated MoS$_2$ field effect transistor (FET) and attributed to bistable dipoles on the STO surface. The hysteresis is expectedly…

Mesoscale and Nanoscale Physics · Physics 2024-10-22 Santu Prasad Jana , S Sreesanker , Suraina Gupta , Anjan K. Gupta

We conduct comparative research on the density of states of electron- and hole- carrier trap levels (DTR(E)), dispersing inside the energy gap of a rubrene single crystal in a field effect transistor (FET) struction with Ca and Au…

The photo-induced electron and hole transfer across the semiconductor-dielectric interface in trap dominated p-type organic field-effect transistors (OFETs) has been investigated. It has been observed that the transfer of electrons into the…

Materials Science · Physics 2015-06-25 M. F. Calhoun , C. Hsieh , V. Podzorov

Ambipolar charge carrier transport in Copper phthalocyanine (CuPc) is studied experimentally in field-effect transistors and metal-insulator-semiconductor diodes at various temperatures. The electronic structure and the transport properties…

Mesoscale and Nanoscale Physics · Physics 2015-03-13 C. Schuster , M. Kraus , A. Opitz , W. Brütting , U. Eckern

We develop a novel field effect transistor (FET) device using solid ion conductor (SIC) as a gate dielectric, and we can tune the carrier density of FeSe by driving lithium ions in and out of the FeSe thin flakes, and consequently control…

Superconductivity · Physics 2017-03-08 B. Lei , N. Z. Wang , C. Shang , F. B. Meng , L. K. Ma , X. G. Luo , T. Wu , Z. Sun , Y. Wang , Z. Jiang , B. H. Mao , Z. Liu , Y. J. Yu , Y. B. Zhang , X. H. Chen

Structural studies on ultrathin SrRuO3/BaTiO3/SrRuO3 capacitors, with BaTiO3 thicknesses of between 5 nm and 30 nm, show well-defined interfaces between ferroelectric BaTiO3 and electrode SrRuO3 layers. In these capacitors, we cannot…

In this work, we present a performance analysis of Field Effect Transistors based on recently fabricated 100% hydrogenated graphene (the so-called graphane) and theoretically predicted semi-hydrogenated graphene (i.e. graphone). The…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 Gianluca Fiori , S. Lebègue , A. Betti , P. Michetti , M. Klintenberg , O. Eriksson , Giuseppe Iannaccone

We report on the fabrication and electrical characterization of field-effect transistors at the surface of tetracene single crystals. We find that the mobility of these transistors reaches the room-temperature value of $0.4 \ cm^2/Vs$. The…

Materials Science · Physics 2009-11-10 R. W. I. de Boer , T. M. Klapwijk , A. F. Morpurgo

Lead-halide perovskites emerged as novel semiconducting materials suitable for a variety of optoelectronic applications. However, fabrication of reliable perovskite field-effect transistors (FETs), the devices necessary for the fundamental…

Materials Science · Physics 2021-12-28 V. Bruevich , L. Kasaei , S. Rangan , H. Hijazi , Z. Zhang , T. Emge , E. Andrei , R. A. Bartynski , L. C. Feldman , V. Podzorov

Transport properties of a series of poly(3-hexylthiophene) organic field effect transistors with Cr, Cu and Au source/drain electrodes were examined over a broad temperature range. The current-voltage characteristics of the injecting…

Disordered Systems and Neural Networks · Physics 2007-05-23 B. H. Hamadani , D. Natelson

In this paper, we demonstrate by simulation the feasibility of electrostatically doped and therefore reconfigurable planar field-effect-transistor (FET) structure which is based on our already fabricated and published Si-nanowire (SiNW)…

Mesoscale and Nanoscale Physics · Physics 2014-04-11 Tillmann Krauss , Frank Wessely , Udo Schwalke

We have experimentally demonstrated the effectiveness of beta-gallium oxide (beta-Ga2O3) ferroelectric fin field-effect transistors (Fe-FinFETs) for the first time. Atomic layer deposited (ALD) hafnium zirconium oxide (HZO) is used as the…

Integrating ferroelectric negative capacitance (NC) into the field-effect transistor (FET) promises to break fundamental limits of power dissipation known as Boltzmann tyranny. However, realizing the stable static negative capacitance in…

Mesoscale and Nanoscale Physics · Physics 2022-03-01 I. Luk'yanchuk , A. Razumnaya , A. Sené , Y. Tikhonov , V. M. Vinokur

Spin-orbit torque is a promising mechanism for writing magnetic memories, while field-effect transistors are the gold-standard device for logic operation. The spin-orbit torque field effect transistor (SOTFET) is a proposed device that…

We report on organic field-effect transistors with unprecedented resistance against gate bias stress. The single crystal and thin-film transistors employ the organic gate dielectric Cytop(TM). This fluoropolymer is highly water repellent…

Materials Science · Physics 2009-12-21 Wolfgang L. Kalb , Thomas Mathis , Simon Haas , Arno F. Stassen , Bertram Batlogg

Black phosphorous (BP) is is recently unveiled as a promising two-dimensional direct bandgap semiconducting material. Here, we report the ambipolar field effect transistor behavior of multilayers of BP with ferromagnetic tunnel contacts. We…

Mesoscale and Nanoscale Physics · Physics 2014-07-07 M. Venkata Kamalakar , B. N Madhushankar , André Dankert , Saroj P. Dash

Highly-crystalline ferroelectric oxides integrated on Si hold great promise for energy-efficient memory and logic technologies. Exploiting epitaxial strain engineering in these materials is, however, severely hampered on Si, where the large…

Materials Science · Physics 2026-04-27 Jingtian Zhao , Beatriz Noheda , Martin F. Sarott
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