Ultrasensitive negative capacitance phototransistors [PDF]
Nature Communications, 2020 Here, the authors report ultrasensitive negative capacitance phototransistors based on MoS2 regulated by a layer of ferroelectric hafnium zirconium oxide film to demonstrate a hysteresis-free ultra-steep subthreshold slope of 17.64 mV/dec and specific ...
Luqi Tu +15 more
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Polarization Gradient Effect of Negative Capacitance LTFET [PDF]
Micromachines, 2022 In this paper, an L-shaped tunneling field effect transistor (LTFET) with ferroelectric gate oxide layer (Si: HfO2) is proposed. The electric characteristic of NC-LTFET is analyzed using Synopsys Sentaurus TCAD.
Hao Zhang +8 more
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Van der Waals negative capacitance transistors [PDF]
Nature Communications, 2019 The adaptation to atomically thin 2D semiconductors and van der Waals layered ferroelectrics can enable negative capacitance transistors with superior performance and bendability.
Xiaowei Wang +14 more
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Observation of negative capacitance in antiferroelectric PbZrO3 Films [PDF]
Nature Communications, 2021 The observation of negative capacitance effect is focused on the ferroelectrics, while the antiferroelectrics based on Landau switches may have negative capacitance effect.
Leilei Qiao +9 more
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Mechanistic origin and unlocking of negative capacitance in perovskites solar cells [PDF]
iScience, 2021 Summary: We have unlocked the mechanistic behavior of negative capacitance in perovskite solar cells (PSCs) by analyzing impedance spectra at variable photovoltage and applied bias, temperature-dependent capacitance versus frequency (C-f) spectra, and ...
Mohd Taukeer Khan +4 more
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Ferroelectric Negative Capacitance Domain Dynamics [PDF]
Journal of Applied Physics, 2017 Transient negative capacitance effects in epitaxial ferroelectric Pb(Zr$_{0.2}$Ti$_{0.8}$)O$_3$ capacitors are investigated with a focus on the dynamical switching behavior governed by domain nucleation and growth.
Hoffmann, Michael +8 more
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Temperature Dependence of Dielectric Properties of Ferroelectric Heterostructures with Domain-Provided Negative Capacitance [PDF]
Nanomaterials, 2021 It is well known that the ferroelectric layers in dielectric/ferroelectric/dielectric heterostructures harbor polarization domains resulting in the negative capacitance crucial for manufacturing energy-efficient field-effect transistors.
Maksim A. Pavlenko +4 more
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Is negative capacitance FET a steep-slope logic switch? [PDF]
Nature Communications, 2020 Negative Capacitance field-effect-transistor has long been touted as a steep-slope logic switch. Here, the authors present a lucid formulation that reveals the intrinsic limitation of NC-FETs in achieving steep-slope switching characteristics and ...
Wei Cao, Kaustav Banerjee
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Negative Capacitance Vacuum Channel Transistors for Low Operating Voltage [PDF]
Micromachines, 2020 This study proposes negative capacitance vacuum channel transistors. The proposed negative capacitance vacuum channel transistors in which a ferroelectric capacitor is connected in series to the gate of the vacuum channel transistors have the following ...
Woo Young Choi
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Steep-Slope and Hysteresis-Free MoS2 Negative-Capacitance Transistors Using Single HfZrAlO Layer as Gate Dielectric [PDF]
Nanomaterials, 2022 An effective way to reduce the power consumption of an integrated circuit is to introduce negative capacitance (NC) into the gate stack. Usually, negative-capacitance field-effect transistors (NCFETs) use both a negative-capacitance layer and a positive ...
Xinge Tao, Lu Liu, Jingping Xu
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