Undergraduate Student in Department of Physics at Pukyong National University Publishes Paper in SCI International Journal

Undergraduate student Dong-ik Lee from the Department of Physics at Pukyong National University had his paper published in the SCI-level international journal Progress in Organic Coatings (IF: 6.6).

Recently, Lee participated as the first author in this journal and published the paper titled “Nanoscale paraffin layer fabricated using spin coating technique for on-demand removable passivation.”

In the paper, Lee presented research results showing that paraffin coating can be used as a protective layer to safeguard materials or devices and can be easily removed when necessary.

Professor Seung-hoon Lee, Lee’s advisor, explained, “Paraffin, the main ingredient of candles, is chemically very stable and can be used as a protective layer for samples. It easily vaporizes under vacuum, allowing it to be removed simply by vacuum treatment. Utilizing these properties, paraffin can be used as a protective layer that can be easily removed when needed.”

Change rate of surface coverage of paraffin layer according to vacuum treatment (left), comparison image of electrical resistance change of silicon substrate with or without paraffin protective layer.

In this study, Dong-ik Lee conducted systematic experiments to optimize the fabrication conditions of the paraffin layer that stably protects samples while being easy to remove. The experiments demonstrated that the paraffin layer can be easily removed by vacuum treatment and that the samples were well protected after the protective layer was removed.

He said, “As an undergraduate student, I received great help and learned a lot through the guidance and support of my professors and seniors. I will continue to devote myself to research and strive to contribute to the laboratory and academic community.”

Professor Seung-hoon Lee added, “This research is expected to accelerate studies on quantum materials and new materials and to promote various forms of collaborative research.”

Lee Dong-ik (left) from the Department of Physics at Pukyong National University and Professor Lee Seung-hoon.

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