Our Lab was established in 2010 fall as Nanostructures and Nanomaterials Laboratory (NNL) and leading by Prof. Dukhyun Choi (Ph.D in 2006, Postech) who is an expert in nanomechanics, nanoplasmonics, and nanogenerators.

Our group has an interest in nano/microfabrications and a variety of applications of nanostructures and nanomaterials in energy, sensors, and electronics. We also focus on the novel design and the development of hybrid nanocomposite structures for various self-powered electronics and biological systems. Based on our researches, we hope that cheap and effective power sources and sensors could be helpful for low income and developing countries

• Large area, low-cost nanofabrication
• Organic/inorganic thin film analysis based on interface control and surface treatment techniques
• Energy harvesting devices with effective energy conversion system and their hybrid designs
• Nanoplasmonics: Novel designs of optical systems and color/biological sensors
• Self-powered monitoring/electronic systems
• Simulation-based optimal design such as structural and optical design

Kwan-Woo Han, Jong-Nam Kim, Araz Rajabi-Abhari, Van-Tien Bui, Ji-Seok Kim, Dukhyun Choi*, Il-Kwon Oh*
Long-Lasting and Steady Triboelectric Energy Harvesting from Low-Frequency Irregular Motions Using Escapement Mechanism
ADVANCED ENERGY MATERIALS, 2020-11, Vol. 0, No. 0, pp. 0~ 0

Hee Jae Ryoo, Chan Woo Lee, Jong Won Han, Wook Kim* and Dukhyun Choi*
A Triboelectric Nanogenerator Design for the Utilization of Multi-Axial Mechanical Energies in Human Motions
SENSOR SCIENCE AND TECHNOLOGY, 2020-09, Vol. 29, No. 5, pp. 312~ 322

Arnab Pal, Subhodeep Chatterjee, Subhajit Saha, Snigdha Roy Barman, Dukhyun Choi, Sangmin Lee and Zong-Hong Lin*
A Highly Sensitive Mercury Ion Sensor Based on Solid-Liquid Contact Electrification
SOLID STATE SCIENCE AND TECHNOLOGY, 2020-10, Vol. 9, No. 11, pp. 0~ 0