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Welcome to the Koo Group
Our group focuses on the development of electronic and optoelectronic devices with stretchable form factors, such that they can be conformally integrated to dynamic surfaces such as the human body.
We envision that these devices will enable novel applications which were not possible using conventional Si-based rigid devices, including but not limited to smart prosthetics, intelligent biomedical systems, deformable displays, and skin-mounted user-interactive electronics.
Research Highlights
First in the world to develop vacuum-deposited stretchable dielectric, and intrinsically-stretchable electronics with performance metrics comparable to inorganic devices.
First in the world to develop vacuum-deposited stretchable dielectric, and intrinsically-stretchable electronics with performance metrics comparable to inorganic devices.
Published in Nature Electronics
First in the world to report intrinsically-stretchable phototransistor arrays, without sacrificing device density by mechanical deformation.
First in the world to report intrinsically-stretchable phototransistor arrays, without sacrificing device density by mechanical deformation.
Published in Nature Nanotechnology
Development of wearable electrocardiogram(ECG) monitor based on electrodes, signal amplifier, and color-tunable organic light-emitting diodes with stretchable form factors, to visualize retrieved ECG signals in real-time via color changes.
Development of wearable electrocardiogram(ECG) monitor based on electrodes, signal amplifier, and color-tunable organic light-emitting diodes with stretchable form factors, to visualize retrieved ECG signals in real-time via color changes.
Published in ACS Nano
Recent Highlights
"Integration of Conductive Nanocomposites and Nanomembranes for High-Performance Stretchable Conductors" Advanced Nanobiomed Research (2023)
"Integration of Conductive Nanocomposites and Nanomembranes for High-Performance Stretchable Conductors" Advanced Nanobiomed Research (2023)
Positions available for post-doctoral researchers and graduate students
We are always looking for people who are passionate for research in unconventional electronic/optoelectronic devices, with backgrounds in chemical, electrical, material, and mechanical engineering.
Please contact Prof. Ja Hoon Koo at via e-mail(jhkoo@sejong.ac.kr).
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