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Using accurate dissipative DFT-NEGF atomistic-simulation techniques within the Wannier-Function formalism, we give a fresh look at the possibility of sub-10 nm scaling for high-performance CMOS applications. We show that a combination of…

Applied Physics · Physics 2021-02-05 Aryan Afzalian

GaAs-based nanowires are among the most promising candidates for realizing a monolithical integration of III-V optoelectronics on the Si platform. To realize their full potential for applications as light absorbers and emitters, it is…

3D NAND enables continuous NAND density and cost scaling beyond conventional 2D NAND. However, its poly-Si channel suffers from low mobility, large device variations, and instability caused by grain boundaries. Here, we overcome these…

Mesoscale and Nanoscale Physics · Physics 2022-12-19 Chen Sun , Chao Li , Subhranu Samanta , Kaizhen Han , Zijie Zheng , Jishen Zhang , Qiwen Kong , Haiwen Xu , Zuopu Zhou , Yue Chen , Cheng Zhuo , Kai Ni , Xunzhao Yin , Xiao Gong

Two-dimensional (2D) materials, such as molybdenum disulfide (MoS2), have been shown to exhibit excellent electrical and optical properties. The semiconducting nature of MoS2 allows it to overcome the shortcomings of zero-bandgap graphene,…

Mesoscale and Nanoscale Physics · Physics 2012-09-17 Han Wang , Lili Yu , Yi-Hsien Lee , Yumeng Shi , Allen Hsu , Matthew Chin , Lain-Jong Li , Madan Dubey , Jing Kong , Tomas Palacios

We propose a semi-suspended device structure and construct nanogapped, hysteresis-free field-effect transistors (FETs), based on the van der Waals stacking technique. The structure, which features a semi-suspended channel above a…

Mesoscale and Nanoscale Physics · Physics 2023-06-29 Jiachen Tang , Luhao Liu , Yinjiang Shao , Xinran Wang , Yi Shi , Songlin Li

In this study, InSb nanowires have been formed by electrodeposition and integrated into NW-FETs. NWs were formed in porous anodic alumina (PAA) templates, with the PAA pore diameter of approximately 100 nm defining the NW diameter.…

Mesoscale and Nanoscale Physics · Physics 2015-05-28 Suprem R. Das , Collin J. Delker , Dmitri Zakharov , Yong P. Chen , Timothy D. Sands , David B. Janes

We demonstrate an exotic doubled-channeled NT GAAFET (DC NT GAAFET) structure with Ion boost in comparison with NT GAAFET and NW GAAFET with the same footprint. Ion gains of 64.8% and 1.7 times have been obtained in DC NT GAAFET in compared…

Applied Physics · Physics 2023-07-06 Laixiang Qin , Chunlai Li , Yiqun Wei , Zhangwei Xu , Jin He , Yandong He , Yutao Yue

The AlGaAs material platform has been intensively used to develop nonlinear photonic devices on-a-chip, thanks to its superior nonlinear optical properties. We propose a new AlGaAs waveguide geometry, called half-core etched, which…

Parallel and monolithic 3D integration directions offer pathways to realize 3D integrated circuits (ICs) but still lead to layer-by-layer implementations, each functional layer being composed in 2D first. This mindset causes challenging…

Emerging Technologies · Computer Science 2016-05-02 Mingyu Li , Jiajun Shi , Mostafizur Rahman , Santosh Khasanvis , Sachin Bhat , Csaba Andras Moritz

Steep-slope $\beta$-Ga$_2$O$_3$ nano-membrane negative capacitance field-effect transistors (NC-FETs) are demonstrated with ferroelectric hafnium zirconium oxide in gate dielectric stack. Subthreshold slope less than 60 mV/dec at room…

Materials Science · Physics 2017-11-03 Mengwei Si , Lingming Yang , Hong Zhou , Peide D. Ye

As metal-oxide-semiconductor field-effect transistors (MOSFET) channel lengths (Lg) are scaled to lengths shorter than Lg<8 nm source-drain tunneling starts to become a major performance limiting factor. In this scenario a heavier transport…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Saumitra Mehrotra , SungGeun Kim , Tillmann Kubis , Michael Povolotskyi , Mark Lundstrom , Gerhard Klimeck

In-plane semiconductor nanowires with complex branched geometries, prepared via selective area growth (SAG), offer a versatile platform for advanced electronics, optoelectronics, and quantum devices. However, defects and disorder at the…

Mesoscale and Nanoscale Physics · Physics 2025-05-12 Pradip Adhikari , Anjali Rathore , Dayrl P Briggs , Srijanto R Bernadeta , Joon Sue Lee

Core-shell germanium nanowire (GeNW) is formed with a single-crystalline Ge core and concentric shells of nitride and silicon passivation layer by chemical vapor deposition (CVD), an Al2O3 gate dielectric layer by atomic layer deposition…

Materials Science · Physics 2007-05-23 Li Zhang , Ryan Tu , Hongjie Dai

Embedding quantum dots (QDs) on nanowire (NW) sidewalls allows the integration of multi-layers of QDs into the active region of radial p-i-n junctions to greatly enhance light emission/absorption. However, the surface curvature makes the…

Mesoscale and Nanoscale Physics · Physics 2021-04-01 Yunyan Zhang , H. Aruni Fonseka , Hui Yang , Xuezhe Yu , Pamela Jurczak , Suguo Huo , Ana M. Sanchez , Huiyun Liu

Field-plated (FP) depletion-mode MOVPE-grown $\beta$-Ga$_2$O$_3$ lateral MESFETs are realized with superior reverse breakdown voltages and ON currents. A sandwiched SiN$_x$ dielectric field plate design was utilized that prevents…

A vertical partial gate carbon nanotube (CNT) field-effect transistor (FET), which is amenable to the vertical CNT growth process and offers the potential for a parallel CNT array channel, is simulated using a self-consistent atomistic…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Youngki Yoon , James Fodor , Jing Guo

In this paper, we have proposed a new design technique of BCD Adder using newly constructed reversible gates are based on NMOS with pass transistor gates, where the conventional reversible gates are based on CMOS with transmission gates. We…

Other Computer Science · Computer Science 2012-01-13 Md. Sazzad Hossain , Md. Rashedul Hasan Rakib , Md. Motiur Rahman , A. S. M. Delowar Hossain , Md. Minul Hasan

We report here the first realization of top-down silicon nanowires (SiNW) transduced by both junction-less field effect transistor (FET) and the piezoresistive (PZR) effect. The suspended SiNWs are among the smallest top-down SiNWs reported…

Junctionless Nanowire Field-Effect Transistors (JNFETs), where the channel region is uniformly doped without the need for source-channel and drain-channel junctions or lateral doping abruptness, are considered an attractive alternative to…

Emerging Technologies · Computer Science 2014-04-02 Mostafizur Rahman , Pritish Narayanan , Csaba Andras Moritz

Low-dimensional materials such as layered semiconductors or carbon nanotubes (CNTs) have been attracting increasing attention in the last decades due to their inherent scaling properties, which become fundamental to sustain the scaling in…

Mesoscale and Nanoscale Physics · Physics 2019-04-23 Marta Perucchini , Enrique G. Marin , Damiano Marian , Giuseppe Iannaccone , Gianluca Fiori