Research | fedl

Research Areas

We develop brain-inspired optoelectronic devices that mimic biological synaptic behavior — integrating sensing, memory, and computation in a single device. Our neuromorphic phototransistors based on oxide semiconductors, tellurium nanowires, and ferroelectric gate dielectrics enable in-sensor visual processing that dramatically reduces data throughput and energy consumption for AI hardware.
Retina-Mimetic In-Sensor Visual Processing via Bidirectional Photoconductivity in Encapsulated Tellurium Nanowire Devices — Adv. Funct. Mater. 2026
Multispectral Ferroelectric Optoelectronic Synapses with Polarization-Controlled Memory for Brain-Inspired Visual Processing — Laser & Photonics Rev. 2026
Contact-Engineered Oxide Memtransistors for Homeostasis-Based High-Linearity Neuromorphic Computing — Small 2025
Monolithically Integrated Neuromorphic Electronic Skin for Biomimetic Radiation Shielding — Science Advances 2024

Metal-oxide thin-film transistors (TFTs) based on amorphous IGZO, ITO, and ZTO are the backbone of next-generation displays and flexible electronics. We engineer high-performance TFTs through precise control of channel composition, interface trap engineering, gate dielectric design (Al₂O₃, HZO), and channel thickness scaling — achieving superior electrical performance, low-frequency noise characteristics, and operational stability for flexible display and IoT applications.
Impact of Channel Thickness Scaling on Interface Trap Density and Electrical Properties of Ultrathin Oxide FETs — Mater. Today Phys. 2026
Influence of Gate Dielectric and Channel Scaling on Low-Frequency Noise Characteristics of InGaZnO FETs — ACS Appl. Electron. Mater. 2026
High-Performance Metal Oxide TFTs for Flexible Displays: Materials, Fabrication, and Applications — Soft Science 2025
Enhanced Dielectric Properties of NO-Gas-Based SiO₂ Films for High-Performance IGZO TFTs — J. Mater. Chem. C 2025

We engineer next-generation flexible and stretchable electronic systems using conductive textile fibers, silver nanowire (AgNW) networks, and monolithically integrated inorganic transistor circuits on elastic substrates. Our research spans wearable pressure/strain sensors, electrothermal heaters, and fully stretchable CMOS-compatible circuits — bridging the gap between conventional rigid electronics and soft, skin-compatible systems for healthcare and IoT.
Textile-Based Wearable Electrothermal Pad Using Woven AgNW/EG-PEDOT:PSS Heaters and PS/PEDOT:PSS Thermistor Yarns — ACS Appl. Mater. Interfaces 2026
Predictive Modeling of Optical and Electrical Coupling in Silver Nanowire Networks for Stretchable Transparent Electrodes — Nanoscale 2026
Full Integration of Highly Stretchable Inorganic Transistors and Circuits within Molecular-Tailored Elastic Substrates — Nature Commun. 2024
Dual-Stream Deep Learning Integrated Multimodal Sensors for Complex Stimulus Detection in Intelligent Sensory Systems — Nano Energy 2024