In memoriam: Jong-Heun Lee – A Tribute to His Contributions to the Advancement of Metal Oxide Semiconductor Gas Sensors

초록

Professor Jong-Heun Lee (1965–2022) was a visionary scientist whose pioneering work laid the foundation formodern metal oxide semiconductor (MOS) gas sensors. Through decades of research, he transformed persistent limitations in thefield—such as low selectivity, humidity interference, and high operating temperatures—into opportunities for innovation anddiscovery. As a Distinguished Professor at Korea University, he led groundbreaking investigations into nanostructure design, surfacedecoration, p-type oxide semiconductors, bilayer architectures, and humidity-independent sensing. His work consistently bridged thegap between fundamental understanding and practical application, influencing environmental monitoring, healthcare diagnostics, andbeyond. This memorial article is a collective tribute from his students and colleagues, each reflecting on a significant theme in hisresearch and mentorship. Through these contributions, we honor his scientific legacy, enduring mentorship, and unwavering beliefthat significant challenges are the starting point for great ideas. Professor Lee’s contributions continue to shape the field and inspirethe next generation of materials scientists and sensor researchers.

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