Recognized for Publication in a World-Renowned Journal
Artificial Olfactory System Achieves Breakthrough in Precision
Yoonhaeng Cho, a master's degree candidate in the Department of Energy, New Materials, and Chemical Engineering at Korea University of Technology and Education, received the prestigious "Jonghun Lee Paper Award" in the field of gas sensors at the Korean Sensors Society Fall Conference, held at The Ocean Resort in Yeosu from October 22 to 24.
According to Korea University of Technology and Education on October 29, the "Jonghun Lee Paper Award" was established in honor of the late Honorary President Jonghun Lee, a globally renowned scholar in the field of oxide semiconductor gas sensors. The award is presented annually to researchers who have achieved outstanding research results in the field of gas sensors.
Yoonhaeng Cho was recognized for academic excellence as the first author of the paper "Artificial Olfactory System Enabled by Ultralow Chemical Sensing Variations of 1D SnO₂ Nanoarchitectures," which was published in the world-renowned journal Advanced Science in May.
This research focused on the precise coating of gold (Au) and palladium (Pd) nanocatalysts on tin oxide (SnO₂)-based one-dimensional nanostructures, and through surface functionalization and aging processes, succeeded in reducing the coefficient of variation in sensor performance to an average of less than 3%.
This result demonstrates greatly improved reproducibility and data consistency compared to existing commercial metal oxide sensors.
Furthermore, the developed artificial olfactory system, which combines a deep learning algorithm (ResNet) with data augmentation techniques, was able to classify seven major gases (such as acetone, ethanol, propane, and toluene) with over 99.5% accuracy even in high-humidity environments with 80% relative humidity, proving its potential for use in industrial safety and bio-healthcare applications.
Yoonhaeng Cho stated, "It is a great honor to have my research recognized by both a world-renowned journal and the Korean Sensors Society," and added, "I am deeply grateful to Professor Youngseok Shim for his meticulous guidance over the past three years."
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