Article Details
- Home
- Article Details
2024-08-31
A joint research team led by Professor Ji-min Kwon and Dr. Yong-woo Lee from the
Department of Electrical and Electronic Engineering at Ulsan National Institute of Science
and Technology (UNIST), along with Professor Sung-jun Jeong from Department of Material
Science and Engineering at Pohang University of Science and Technology (POSTECH), has
developed a technology to secure the long-term stability of polymer Schottky diodes.
The team has investigated the timing of degradation phenomena in diode devices by
controlling the fabrication sequence. To address issues in the interface region, they
introduced a nanometer-thick zinc oxide insertion layer between the conjugated polymer and
the cathode metal layer.
This zinc oxide insertion layer is designed to maintain effective charge injection while
eliminating the non-stoichiometric effects that occur when aluminum cathodes come into
contact with the polymer. As a result, the team successfully produced a polymer Schottky
diodes.
Dr. Yong-woo Lee stated, “Although research on wearable devices has made significant
progress, stability issues in wireless power transmission remain unresolved. The technology
developed this time will greatly assist in the research of next-generation wearable devices
providing flexible wireless power transmission that does not deteriorate for several
months.