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Field-effect transistors based on molybdenum disulfide (MoS$_2$) exhibit a hysteresis in their transfer characteristics, which can be utilized to realize 2D memory devices. This hysteresis has been attributed to charge trapping due to…

We study the effect of electric stress, gas pressure and gas type on the hysteresis in the transfer characteristics of monolayer molybdenum disulfide (MoS2) field effect transistors. The presence of defects and point vacancies in the MoS2…

Electrical conductivity with gate-sweep in a few layer MoS$_2$-on-SiO$_2$ field-effect-transistor shows an abrupt reduction in hysteresis when cooled. The hysteresis and time dependent conductivity of the MoS$_2$ channel are modeled using…

Mesoscale and Nanoscale Physics · Physics 2024-01-10 Santu Prasad Jana , Suraina Gupta , Anjan K. Gupta

MoS$_2$ field-effect transistors (FETs) with high-\textit{k} oxides currently lag behind silicon standards in bias and temperature stability due to ubiquitous border oxide traps that cause clockwise (CW) hysteresis in gate transfer…

Clockwise to anti-clockwise hysteresis crossover in current-voltage transfer characteristics of field effect transistors (FETs) with graphene and MoS$_2$ channels holds significant promise for non-volatile memory applications. However such…

Applied Physics · Physics 2020-05-15 Himani Jawa , Abin Varghese , Saurabh Lodha

Graphene field effect transistors commonly comprise graphene flakes lying on SiO2 surfaces. The gate-voltage dependent conductance shows hysteresis depending on the gate sweeping rate/range. It is shown here that the transistors exhibit two…

Mesoscale and Nanoscale Physics · Physics 2011-01-19 Haomin Wang , Yihong Wu , Chunxiao Cong , Jingzhi Shang , Ting Yu

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

Randomly distributed traps at the MoS$_2$/SiO$_2$ interface result in non-ideal transport behavior, including hysteresis in MoS$_2$/SiO$_2$ field effect transistors (FETs). Thus traps are mostly detrimental to the FET performance but they…

Mesoscale and Nanoscale Physics · Physics 2024-09-06 Santu Prasad Jana , Suraina Gupta , Anjan Kumar Gupta

Charge transport in MoS2 in the low carrier density regime is dominated by trap states and band edge disorder. The intrinsic transport properties of MoS2 emerge in the high density regime where conduction occurs via extended states. Here,…

Mesoscale and Nanoscale Physics · Physics 2014-12-08 Leiqiang Chu , Hennrik Schmidt , Jiang Pu , Shunfeng Wang , Barbaros Özyilmaz , Taishi Takenobu , Goki Eda

We study electrical transport properties in exfoliated molybdenum disulfide (MoS2) back-gated field effect transistors at low drain bias and under different illumination intensities. It is found that photoconductive and photogating effect…

In this work, we unveil the effect of RS, induced by a current-voltage hysteresis cycles across CVD-grown monolayer MoS2 based gated RRAM, on its transistors electrical and reliability characteristics. A unique gate voltage dependence on…

Applied Physics · Physics 2021-12-08 Ansh , Mayank Shrivastava

Understanding the origin of hysteresis in the channel resistance from top gated graphene transistors is important for transistor applications. Capacitance - voltage measurements across the gate oxide on top gated bilayer graphene show…

Materials Science · Physics 2015-06-11 Gopinadhan Kalon , Young Jun Shin , Viet Giang Truong , Alan Kalitsov , Hyunsoo Yang

We report the fabrication and the electrical characterization of back-gated field effect transistors with black phosphorus channel. We show that the hysteresis of the transfer characteristic, due to intrinsic defects, can be exploited to…

Hysteresis and commonly observed p-doping of graphene based field effect transistors (FET) was already discussed in reports over last few years. However, the interpretation of experimental works differs; and the mechanism behind the…

Mesoscale and Nanoscale Physics · Physics 2012-09-25 Alina Veligura , Paul J. Zomer , Ivan J. Vera-Marun , Csaba Józsa , Pavlo I. Gordiichuk , Bart J. van Wees

We study field-effect transistors realized from VO2 nanobeams with HfO2 as the gate dielectric. When heated up from low to high temperatures, VO2 undergoes an insulator-to-metal transition. We observe a change in conductance (~ 6 percent)…

Strongly Correlated Electrons · Physics 2011-09-30 Shamashis Sengupta , Kevin Wang , Kai Liu , Ajay K. Bhat , Sajal Dhara , Junqiao Wu , Mandar M. Deshmukh

Intelligent transport of molecular species across different barriers is critical for various biological functions and is achieved through the unique properties of biological membranes. An essential feature of intelligent transport is the…

Judging by its omnipresence in the literature, the hysteresis observed in the transfer characteristics of emerging transistors based on 2D-materials is widely accepted as an important metric related to the device quality. The hysteresis is…

We report the fabrication of back-gated field-effect transistors (FETs) using ultra-thin, mechanically exfoliated MoSe2 flakes. The MoSe2 FETs are n-type and possess a high gate modulation, with On/Off ratios larger than 106. The devices…

Mesoscale and Nanoscale Physics · Physics 2013-01-04 S. Larentis , B. Fallahazad , E. Tutuc

In this report, the hysteresis behaviors of PEI:LiClO4 and PEG:LiClO4 electrolyte gate and back gate Graphene-on-SiO2 FET were analyzed by gate-voltage source-drain current modulation. It is shown that both the sweeping rate and the sweep…

Applied Physics · Physics 2018-04-17 Y. Yao

Atomically thin semiconducting MoS2 is of great interest for high-performance flexible electronic and optoelectronic devices. Initial measurements using back-gated field-effect transistor (FET) structures on SiO2 yielded mobility of 1-50…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 Michael S. Fuhrer , James Hone
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