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相关论文: P-type Ohmic contact to monolayer WSe2 field-effec…

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Advanced microelectronics in the future may require semiconducting channel materials beyond silicon. Two-dimensional (2D) semiconductors, characterized by their atomically thin thickness, hold immense promise for high-performance electronic…

We report high performance p-type field-effect transistors based on single layered (thickness, ~0.7 nm) WSe2 as the active channel with chemically doped source/drain contacts and high-{\kappa} gate dielectrics. The top-gated monolayer…

介观与纳米尺度物理 · 物理学 2012-06-22 Hui Fang , Steven Chuang , Ting Chia Chang , Kuniharu Takei , Toshitake Takahashi , Ali Javey

Formation of low-resistance metal contacts is the biggest challenge that masks the intrinsic exceptional electronic properties of 2D WSe2 devices. We present the first comparative study of the interfacial properties between ML/BL WSe2 and…

High performance p- and n-type single-walled carbon nanotube (SWNT) field-effect transistors (FETs) are obtained by using high and low work function metals, Pd and Al as source/drain (S/D) electrodes respectively. Ohmic contacts made to…

介观与纳米尺度物理 · 物理学 2007-05-23 Ali Javey , Qian Wang , Woong Kim , Hongjie Dai

Contact resistances often contribute significantly to the overall device resistance in organic field-effect transistors (OFETs). Understanding charge injection at the metal-organic interface is critical to optimizing OFET device…

材料科学 · 物理学 2009-11-11 D. Natelson , B. H. Hamadani , J. W. Ciszek , D. A. Corley , J. M. Tour

Atomically thin MoSe2 is a promising platform for investigating quantum phenomena due to its large effective mass, high crystal quality, and strong spin-orbit coupling. In this work, we demonstrate a triple-gate device design with bismuth…

介观与纳米尺度物理 · 物理学 2025-05-05 Chang Liu , Tongtong Jia , Zheng Sun , Yu Gu , Fan Xu , Kenji Watanabe , Takashi Taniguchi , Jinfeng Jia , Shiyong Wang , Xiaoxue Liu , Tingxin Li

WSe2 p-MOSFETs with Nb-doped WS2 contacts formed using atomic layer deposition are demonstrated. The devices are fabricated using a technique that aligns the contact metallization with the Nb-doped WS2 contacts using a selective oxidation…

We study the effect of polymer coating, pressure and temperature on the electrical characteristics of monolayer WSe2 back-gated transistors with quasi-ohmic Ni/Au contacts. We find that the removal of a layer of poly(methyl methacrylate) or…

介观与纳米尺度物理 · 物理学 2020-05-01 Francesca Urban , Lisanne Peters , Nadia Martucciello , Niall McEvoy , Antonio Di Bartolomeo

Tungsten diselenide, WSe2 shows excellent properties and become very promising material among two dimensional semiconductors. Wide band gap and large spin-orbit coupling along with naturally lacking inversion symmetry in the monolayer WSe2…

材料科学 · 物理学 2023-10-16 S. Gupta , R. Ohshima , Y. Ando , T. Endo , Y. Miyata , M. Shiraishi

The development of low-resistance source/drain contacts to transition metal dichalcogenides (TMDCs) is crucial for the realization of high-performance logic components. In particular, efficient hole contacts are required for the fabrication…

We report the fabrication of both n-type and p-type WSe2 field effect transistors with hexagonal boron nitride passivated channels and ionic-liquid (IL)-gated graphene contacts. Our transport measurements reveal intrinsic channel properties…

The contact resistance limits the down-scaling and operating range of OFETs. With the monolayer (1L) organic crystals and non-destructive metal/semiconductor interfaces, intrinsic mobility of 12.5 cm2V-1s-1 and Ohmic contact resistance of…

应用物理 · 物理学 2019-08-06 Boyu Peng , Ho Yuen Lau , Ming Chen , Paddy K. L. Chan

Janus transition metal dichalcogenides (JTMDs) have attracted much attention because of their outstanding electronic and optical properties. The additional out-of-plane dipole in JTMDs can form n- and p-like Ohmic contacts, and this may be…

材料科学 · 物理学 2024-05-17 Yun-Pin Chiu , Hsin-Wen Huang , Yuh-Renn Wu

We report a new strategy for fabricating 2D/2D low-resistance ohmic contacts for a variety of transition metal dichalcogenides (TMDs) using van der Waals assembly of substitutionally doped TMDs as drain/source contacts and TMDs with no…

With the decrease of the dimensions of electronic devices, the role played by electrical contacts is ever increasing, eventually coming to dominate the overall device volume and total resistance. This is especially problematic for…

介观与纳米尺度物理 · 物理学 2018-07-03 Marcos H. D. Guimaraes , Hui Gao , Yimo Han , Kibum Kang , Saien Xie , Cheol-Joo Kim , David A. Muller , Daniel C. Ralph , Jiwoong Park

Two-dimensional transitional metal dichalcogenide (TMD) field-effect transistors (FETs) are promising candidates for future electronic applications, owing to their excellent transport properties and potential for ultimate device scaling.…

Semiconducting MoTe2 is one of the few two-dimensional (2D) materials with a moderate band gap, similar to silicon. However, this material remains under-explored for 2D electronics due to ambient instability and predominantly p-type Fermi…

Superconductivity has been experimentally observed in monolayer WTe2, which in-plane field measurements suggested are of spin-triplet nature. Furthermore, it has been proposed that with a $p$-wave pairing, the material is a second-order…

超导电性 · 物理学 2023-08-07 Ammar Jahin , Yuxuan Wang

For the first time, n-type few-layer MoS2 field-effect transistors with graphene/Ti as the hetero-contacts have been fabricated, showing more than 160 mA/mm drain current at 1 {\mu}m gate length with an on-off current ratio of 107. The…

材料科学 · 物理学 2014-05-13 Yuchen Du , Lingming Yang , Jingyun Zhang , Han Liu , Kausik Majumdar , Paul D. Kirsch , Peide D. Ye

Interfaces between complex oxides constitute a unique playground for 2D electron systems (2DES), where superconductivity and magnetism can arise from combinations of bulk insulators. The 2DES at the LaAlO3/SrTiO3 interface is one of the…

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