Dr. Ryou Research Group

Semiconductor Materials and Applications

Research area

Our research area includes semiconductor materials and devices for photonic, electronic, and energy applications, such as light-emitting diodes (LEDs), photovoltaic solar cells (SCs), field-effect transistors (FETs), high-electron mobility transistors (HEMTs), and piezoelectric generators (PEGs) and sensors.

Research tools:

Our expertise includes (1) TCAD device simulation, (2) epitaxial growth by metalorganic chemical vapor deposition (MOCVD), chemical vapor deposition, and physical vapor deposition, (3) materials characterization, and (4) device fabrication and characterization

Recent and current research topics:

High-efficiency flexible photovoltaic solar cells using single-crystal-like GaAs thin film directly grown on low-cost metal tape


AlGaN/GaN high-electron-mobility transistors for power electronics

Flexible low-cost multi-functional visible/UV light-emitting diodes (LEDs)

Flexible biocompatible piezoelectric generator (PEGs) for self-powered systems

Flexible high-electron-mobility transistors

Design of high-power vertical-cavity surface-emitting lasers (VCSELs) for sensing applications

Recent and current research sponsors: