Low-frequency noise in gas sensors: A review

W Shin, S Hong, Y Jeong, G Jung, J Park, D Kim… - Sensors and Actuators B …, 2023 - Elsevier
Semiconductor-based gas sensors have been applied to a variety of applications, including
environmental, safety, and health monitoring. Extensive efforts have been made to improve …

Toward Ideal Low‐Frequency Noise in Monolayer CVD MoS2 FETs: Influence of van der Waals Junctions and Sulfur Vacancy Management

W Shin, J Byeon, RH Koo, J Lim, JH Kang… - Advanced …, 2024 - Wiley Online Library
The pursuit of sub‐1‐nm field‐effect transistor (FET) channels within 3D semiconducting
crystals faces challenges due to diminished gate electrostatics and increased charge carrier …

Two-dimensional fully ferroelectric-gated hybrid computing-in-memory hardware for high-precision and energy-efficient dynamic tracking

T Lu, J Xue, P Shen, H Liu, X Gao, X Li, J Hao… - Science …, 2024 - science.org
Computing in memory (CIM) breaks the conventional von Neumann bottleneck through in
situ processing. Monolithic integration of digital and analog CIM hardware, ensuring both …

1/f Noise in Synaptic Ferroelectric Tunnel Junction: Impact on Convolutional Neural Network

W Shin, KK Min, JH Bae, J Kim, RH Koo… - Advanced Intelligent …, 2023 - Wiley Online Library
In recent years, neuromorphic computing has been rapidly developed to overcome the
limitations of von Neumann architecture. In this regard, the demand for high‐performance …

Proposition of Adaptive Read Bias: A Solution to Overcome Power and Scaling Limitations in Ferroelectric‐Based Neuromorphic System

RH Koo, W Shin, S Kim, J Im, SH Park, JH Ko… - Advanced …, 2024 - Wiley Online Library
Hardware neuromorphic systems are crucial for the energy‐efficient processing of massive
amounts of data. Among various candidates, hafnium oxide ferroelectric tunnel junctions …

Effect of carrier transport process on tunneling electroresistance in ferroelectric tunnel junction

RH Koo, W Shin, KK Min, D Kwon… - IEEE Electron …, 2022 - ieeexplore.ieee.org
We demonstrate the factors that determine the tunneling electroresistance (TER) of the
ferroelectric tunnel junction (FTJ) by investigating the effects of temperature () and the …

Optimizing post-metal annealing temperature considering different resistive switching mechanisms in ferroelectric tunnel junction

RH Koo, W Shin, KK Min, D Kwon… - IEEE Electron …, 2023 - ieeexplore.ieee.org
We investigate the effect of post-metal annealing temperature () on ferroelectric (FE)
resistive switching (RS) and non-FE RS in HfOx ferroelectric tunnel junctions. Through …

Thermal Induced Pr Degradation Under Low-Voltage Operation in HfZrO Ferroelectric Film: Phenomenon and Underlying Mechanism

B Nie, Y Huang, Y Wang, Y Chen… - IEEE Electron …, 2023 - ieeexplore.ieee.org
To promote the practical application of ferroelectric devices, we present a systematical study
on ferroelectric properties of 10nm HZO capacitor at the high temperature application …

Polarization Pruning: Reliability Enhancement of Hafnia‐Based Ferroelectric Devices for Memory and Neuromorphic Computing

RH Koo, W Shin, J Kim, J Yim, J Ko, G Jung… - Advanced …, 2024 - Wiley Online Library
Ferroelectric (FE) materials are key to advancing electronic devices owing to their non‐
volatile properties, rapid state‐switching abilities, and low‐energy consumption. FE‐based …

Unveiling Resistance Switching Mechanisms in Undoped HfOx Ferroelectric Tunnel Junction Using Low-Frequency Noise Spectroscopy

W Shin, RH Koo, KK Min, D Kwon… - IEEE Electron …, 2022 - ieeexplore.ieee.org
We demonstrate that the resistance switching (RS) of an undoped hafnium oxide (HfOx)-
based ferroelectric tunnel junction (FTJ) is affected not only by ferroelectric domain switching …