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Research topics include
Low-cost, and highly efficient energy conversion/harvesting devices (perovskite solar cells including other thin film photovoltaics)
Organic/inorganic thin film fabrication and analyses of photophysical, optoelectronic characteristics.
Advanced energy materials/devices (translucent+wearable solar modules, solar+battery integrated devices, and etc.)
Optoelectronic devices (Perovskite LEDs, Photodetectors, Sensors, Thin Film Transistors)
Flexible/wearable thin film solar cells
Flexible/wearable thin film solar cells
1. Solar Energy Conversion
1. Solar Energy Conversion
Solar Cells
Solar Cells
Direct conversion from incident solar light to electric energy.
Environmentally clean, unlimited power sources
Thin film solar cells
Thin device (sub-micron ~ 5 micrometer thick)
Flexible/wearable modules for mobile, electronic applications.
Building integrated photovoltaic (BIPV) or translucent windows.
2. Perovskite Solar Cells
2. Perovskite Solar Cells
"Perovskite" as a recent promising photovoltaic technology
"Perovskite" as a recent promising photovoltaic technology
High power conversion efficiency (PCE, >25%), low fabrication costs, and simple solution processing.
Applicable for flexible, lightweight, semitransparent devices.
Remaining issues for commercialization (research issues)
Pb-free light absorber for environmentally benign power generation.
Long-term stability
Large-area uniform production
3. Development of Integrated Energy Devices
3. Development of Integrated Energy Devices
Flexible/Stretchable Energy Conversion/Storage
Flexible/Stretchable Energy Conversion/Storage
Highly efficient solar cells (perovskites, III-V compound)
Flexible, lightweight lithium ion batteries
Integration of PV (photovoltaic) + Energy storage devices = self-storage energy devices
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