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High-bandwidth signals are needed in many applications like radar, sensing, measurement and communications. Especially in optical networks, the sampling rate and analog bandwidth of digital-to-analog converters (DACs) is a bottleneck for…

Signal Processing · Electrical Eng. & Systems 2023-06-09 Mohamed I. Hosni , Janosch Meier , Younus Mandalawi , Karanveer Singh , Paulomi Mandal , Ahmed H. Elghandour , Thomas Schneider

Layered two-dimensional (2D) semiconductors have been widely exploited in photodetectors due to their excellent electronic and optoelectronic properties. To improve their performance, photogating, photoconductive, photovoltaic,…

Materials Science · Physics 2022-06-14 Jinpeng Xu , Xiaoguang Luo , Siqi Hu , Xi Zhang , Dong Mei , Fan Liu , Nannan Han , Dan Liu , Xuetao Gan , Yingchun Cheng , Wei Huang

We report on transport measurement study of top-gated field effect transistors made out of InSb nanowires grown by chemical vapor deposition. The transistors exhibit ambipolar transport characteristics revealed by three distinguished…

Mesoscale and Nanoscale Physics · Physics 2020-03-25 B. Dalelkhan , D. Göransson , C. Thelander , K. Li , Y. J. Xing , V. F. Maisi , H. Q. Xu

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…

Vertically stacked heterojunctions have garnered significant attention for their tunable electronic structures and photocatalytic performance, making them promising candidates for next-generation nanodevices. Using first-principles…

Materials Science · Physics 2025-07-18 Liuzhu Yang , Wenhui Wan , Zhicui Wang , Qiuyue Ma , Yanfeng Ge , Yong Liu

A split gate technique is used to form a lateral quantum dot in a two-dimensional electron gas of a modulation-doped silicon/silicon-germanium heterostructure. e-beam lithography was employed to produce split gates. By applying negative…

We propose a Heterojunction Vertical Tunneling FET and show using self-consistent ballistic quantum transport simulations that it can provide very steep subthreshold swings and high ON current, thereby improving the scalability of Tunnel…

Mesoscale and Nanoscale Physics · Physics 2011-03-17 Kartik Ganapathi , Sayeef Salahuddin

The p-type transistor is an indispensable component of semiconductor technology, enabling complementary operation with n-channel transistors for computation, storage, and communication. Achieving both high robustness and high efficiency is…

This paper introduces an optically controlled 4H-SiC MOSFET designed to avoid the gate-oxide interface unreliability and electromagnetic interference (EMI) susceptibility inherent in conventional voltage-driven devices. By replacing the…

In this paper we report a new PNP Surface Accumulation Layer Transistor (SALTran) on SOI which uses the concept of surface accumulation of holes near the emitter contact to significantly improve the current gain. Using two-dimensional…

Mesoscale and Nanoscale Physics · Physics 2010-08-19 M. Jagadesh Kumar , Vinod Parihar

A new Schottky-gate Bipolar Mode Field Effect Transistor (SBMFET) is proposed and verified by two-dimensional simulation. Unlike in the case of conventional BMFET, which uses deep diffused p+-regions as the gate, the proposed device uses…

Mesoscale and Nanoscale Physics · Physics 2010-08-19 M. Jagadesh Kumar , Harsh Bahl

Reducing the contact resistance of field-effect transistors based on two-dimensional materials is one of the key improvements required to enable the integration of such transistors in an advanced semiconductor manufacturing process.…

Mesoscale and Nanoscale Physics · Physics 2024-12-31 Giuseppe Lovarelli , Fabrizio Mazziotti , Demetrio Logoteta , Giuseppe Iannaccone

A distinctive approach for forming a lateral Bipolar Charge Plasma Transistor (BCPT) is explored using 2-D simulations. Different metal work-function electrodes are used to induce n- and p-type charge plasma layers on undoped SOI to form…

Mesoscale and Nanoscale Physics · Physics 2012-03-27 M. Jagadesh Kumar , Kanika Nadda

Conventional silicon bipolars are not suitable for low-temperature operation due to the deterioration of current gain ($\beta$). In this paper, we characterize lateral bipolar junction transistors (LBJTs) fabricated on silicon-on-insulator…

Applied Physics · Physics 2023-09-19 Yuanke Zhang , Yuefeng Chen , Yifang Zhang , Jun Xu , Chao Luo , Guoping Guo

Harnessing low energy photons is of paramount importance for multi-junction high efficiency solar cells as well as for thermo-photovoltaic applications. However, semiconductor absorbers with bandgap lower than 0.8 eV have been limited to…

A light-emitting-diodes (LEDs)-integrated silicon carbide (SiC) insulated gate bipolar transistors (LI-IGBT) is proposed in this paper. The novelty of the LI-IGBT depends on the photogeneration effect of III-nitride LEDs embedded in the…

Applied Physics · Physics 2025-12-09 Guoliang Zhang , Zhanwei Shen , Yujian Chen , Yufeng Qiu , Feng Zhang , Rong Zhang

This brief presents a technique for compensating the temperature coefficient (TC) of a bandgap reference (BGR) using temperature characteristics of transistor's current gain \b{eta}. As a comparison, three BGR circuits built with Si BJTs…

Applied Physics · Physics 2018-07-18 Hechen Wang , Fa Foster Dai , Michael Hamilton

Orthogonal frequency-division multiplexing (OFDM) is widely adopted for providing reliable and high data rate communication in high-speed train systems. However, with the increasing train mobility, the resulting large Doppler shift…

Signal Processing · Electrical Eng. & Systems 2020-03-05 Xiang Ren , Meixia Tao , Wen Chen

The maximum information rates for bandlimited channels with direct detection are achieved with joint detection and decoding (JDD), but JDD is often too complex to implement. Two receiver structures are studied to reduce complexity: separate…

Information Theory · Computer Science 2023-12-20 Tobias Prinz , Daniel Plabst , Thomas Wiegart , Stefano Calabrò , Norbert Hanik , Gerhard Kramer

Here we present the experimental results of an inverted three-terminal heterojunction bipolar transistor solar cell (HBTSC) made of GaInP/GaAs. The inverted growth and processing enable contacting the intermediate layer (base) from the…