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Recent experiments on ferroelectric gating have introduced a novel functionality, i.e. nonvolatility, in graphene field effect transistors. A comprehensive understanding in the non-linear, hysteretic ferroelectric gating and an effective…

Mesoscale and Nanoscale Physics · Physics 2010-12-24 Yi Zheng , Guang-Xin Ni , Chee-Tat Toh , Chin-Yaw Tan , Kui Yao , Barbaros Ozyilmaz

The linear band dispersion of graphene's bands near the Fermi level gives rise to its unique electronic properties, such as a giant carrier mobility, and this has triggered extensive research in applications, such as graphene field-effect…

Graph Neural Networks (GNNs) have emerged as promising solutions for collaborative filtering (CF) through the modeling of user-item interaction graphs. The nucleus of existing GNN-based recommender systems involves recursive message passing…

Machine Learning · Computer Science 2024-05-21 Peiyan Zhang , Yuchen Yan , Xi Zhang , Chaozhuo Li , Senzhang Wang , Feiran Huang , Sunghun Kim

In recent years, graphene Field-Effect-Transistors (GFETs) have demonstrated an outstanding potential for Terahertz (THz) photodetection due to their fast response and high-sensitivity. Such features are essential to enable emerging THz…

High frequency performance limits of graphene field-effect transistors (FETs) down to a channel length of 20nm are examined by using self-consistent quantum simulations. The results indicate that although Klein band-to-band tunneling is…

Mesoscale and Nanoscale Physics · Physics 2011-02-09 Jyotsna Chauhan , Jing Guo

We report a method of fabricating self-aligned, top-gated graphene field-effect transistors (GFETs) employing polyethyleneimine spin-on-doped source/drain access regions, resulting in a 2X reduction of access resistance and a 2.5X…

A novel ultra-sensitive Parity-Time symmetry based Graphene FET (PTS-GFET) sensor is studied for gas concentration detection. The PTS-GFET sensor effectively integrates the sensitivity of the PT symmetry around its Exceptional Point (EP)…

Applied Physics · Physics 2020-07-10 Lu Ou , Shaolin Liao

As the conventional scaling of logic devices comes to an end, functional wafer backside and 3D transistor stacking are consensus for next-generation logic technology, offering considerable design space extension for powers, signals or even…

Applied Physics · Physics 2025-01-28 Haoran Lu , Xun Jiang , Yanbang Chu , Ziqiao Xu , Rui Guo , Wanyue Peng , Yibo Lin , Runsheng Wang , Heng Wu , Ru Huang

Graphene field-effect transistors are integrated with solution-processed multilayer hybrid organic-inorganic self-assembled nanodielectrics (SANDs). The resulting devices exhibit low-operating voltage (2 V), negligible hysteresis, current…

In this work, a new method for designing an analog circuit for deep sub-micron CMOS fabrication processes is proposed. The proposed method leverages the regression algorithms with the transistor circuit model to size a transistor in 0.18 um…

Other Computer Science · Computer Science 2024-01-31 Alireza Bagheri Rajeoni

In this work, a modified, lumped element graphene field effect device model is presented. The model is based on the "Top-of-the-barrier" approach which is usually valid only for ballistic graphene nanotransistors. Proper modifications are…

Mesoscale and Nanoscale Physics · Physics 2012-07-19 Giancarlo Vincenzi , G. Deligeorgis , Fabio Coccetti , M. Dragoman , Luca Pierantoni , Davide Mencarelli , R. Plana

Vertical field effect transistors (VOFETs) can offer short channel architecture which can further enhance the performance at low operating voltages which makes it more viable for organic electronics applications. VOFETs can be prepared with…

Applied Physics · Physics 2023-01-24 Ramesh Singh Bisht , Pramod Kumar

The ability to accurately extract low-amplitude voltage signals is crucial in several fields, ranging from single-use diagnostics and medical technology to robotics and the Internet of Things. The organic electrochemical transistor, which…

This study introduces a novel AI force field, namely graph-based pre-trained transformer force field (GPTFF), which can simulate arbitrary inorganic systems with good precision and generalizability. Harnessing a large trove of the data and…

Materials Science · Physics 2024-09-04 Fankai Xie , Tenglong Lu , Sheng Meng , Miao Liu

Creating a transmon qubit using semiconductor-superconductor hybrid materials not only provides electrostatic control of the qubit frequency, it also allows parts of the circuit to be electrically connected and disconnected in situ by…

Mesoscale and Nanoscale Physics · Physics 2020-02-12 A. Kringhøj , T. W. Larsen , B. van Heck , D. Sabonis , O. Erlandsson , I. Petkovic , D. I. Pikulin , P. Krogstrup , K. D. Petersson , C. M. Marcus

Using 2-D self-consistent ballistic quantum transport simulations, we investigate the short-channel behavior of graphene field-effect transistors and its impact on the device transconductance and subsequently the intrinsic cut-off frequency…

Mesoscale and Nanoscale Physics · Physics 2011-10-31 Kartik Ganapathi , Youngki Yoon , Sayeef Salahuddin

We invented a novel method to fabricate graphene transistors on oxidized silicon wafers without the need to transfer graphene layers. By means of catalytic chemical vapor deposition (CCVD) the in-situ grown bilayer graphene transistors…

Mesoscale and Nanoscale Physics · Physics 2013-03-04 Pia Juliane Wessely , Frank Wessely , Emrah Birinci , Bernadette Riedinger , Udo Schwalke

The electronic design automation of analog circuits has been a longstanding challenge in the integrated circuit field due to the huge design space and complex design trade-offs among circuit specifications. In the past decades, intensive…

Machine Learning · Computer Science 2024-02-12 Zehao Dong , Weidong Cao , Muhan Zhang , Dacheng Tao , Yixin Chen , Xuan Zhang

The performance limits of the multilayer graphene nanoribbon (GNR) field-effect transistor (FET) are assessed and compared to those of monolayer GNR FET and carbon nanotube (CNT) FET. The results show that with a thin high-k gate insulator…

Mesoscale and Nanoscale Physics · Physics 2009-12-14 Yijian Ouyang , Hongjie Dai , Jing Guo

Superconducting field-effect transitor (SuFET) and Josephson field-effect transistor (JoFET) technologies take advantage of electric field induced control of charge carrier concentration in order to modulate the channel superconducting…

Mesoscale and Nanoscale Physics · Physics 2019-02-21 Federico Paolucci , Giorgio De Simoni , Elia Strambini , Paolo Solinas , Francesco Giazotto