ALD / VPI Research on Polymer Materials

Research domain

Atomic layer deposition (ALD) and vapor phase infiltration (VPI) use sequential precursor exposures to modify materials. In the Lee Research Group, I study metal-oxide deposition and infiltration in polymers, including polyurethane.

I track mass changes across cycles and repeat runs to compare uptake and retention.

My role

I joined the group in August 2026. After training, I began operating ALD/VPI and in-situ quartz crystal microbalance (QCM) systems and repeating experiments to check reproducibility.

I write Python workflows to process QCM data, analyze kinetics, and compare mass changes across runs.

Methods and analysis

• ALD / VPI: experimental deposition and infiltration work with polymer materials.
• In-situ QCM: following the mass response during precursor exposure and subsequent process steps.
• Python: processing QCM records and comparing uptake, retention, and cycle-resolved behavior.

Reproducibility and interpretation

I check whether mass changes are reproducible across runs. QCM measures mass response; it does not, by itself, establish material structure.