Sukwon Choi
Affiliate Researcher
Titles and Affiliations
Associate Professor, Mechanical Engineering
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Recent Publications
Epitaxial growth of single-crystalline (0002) BeO film on (2¯01) β-Ga2O3 substrate
Jung, D., Jang, Y., Bae, J., Han, S., Bong, H., Kim, N. I., Choi, S., Sultane, P. R., Bielawski, C. W., Ryou, J. H. & Oh, J., Apr 15 2026, In: Applied Surface Science. 725, 165719.Research output: Contribution to journal › Article › peer-review
Material-level characterization of the intrinsic mechanical quality factor of Al1-xScxN
Kang, K., Esteves, G., Young, T. R., Murrieta-Cortes, J. P., An, M., McGaughey, A. J. H., Ramos-Alvarado, B., Trolier-McKinstry, S. E. & Choi, S., Oct 1 2026, In: Acta Materialia. 318, 122604.Research output: Contribution to journal › Article › peer-review
Thermal Optimization of the Buffer Layer Thickness of GaN HEMTs
Karim, A., Walwil, H., Kang, K., Kim, S., Shoemaker, D. C., Barton, H., Lee, K. K., Tweedie, J. S. & Choi, S., 2026, In: IEEE Transactions on Electron Devices. 73, 1, p. 164-171 8 p.Research output: Contribution to journal › Article › peer-review
Analysis of Multifinger GaN HEMTs Using Gate Resistance Thermometry, Raman Thermometry, and Infrared Thermal Microscopy
Kim, S., Shoemaker, D. C., Walwil, H., Wildeson, I., Srivastava, P., Zivasatienraj, B. & Choi, S., Dec 1 2026, In: Journal of Electronic Packaging. 148, 4, 040905.Research output: Contribution to journal › Article › peer-review
Optimization Factors for the Thermal Design of Packaged GaN High-Electron-Mobility Transistors
Kim, S., Shoemaker, D. C., Walwil, H., Kang, K., Kim, J., Woo, K., Zivasatienraj, B., Srivastava, P., Wildeson, I., Chowdhury, S. & Choi, S., Apr 1 2026, In: IEEE Transactions on Electron Devices. 73, 4, p. 1734-1741 8 p.Research output: Contribution to journal › Article › peer-review
Ultra-Wide Bandgap AlN/AlGaN/AlN-on-SiC HEMT with Record-High Thermal Performance
Kim, S., Kim, E., Singhal, J., Encomendero, J., Jena, D., Xing, H. G. & Choi, S., Jun 1 2026, In: IEEE Electron Device Letters. 47, 6, p. 1177-1180 4 p.Research output: Contribution to journal › Article › peer-review
A ratio-based dual-spot-size time-domain thermoreflectance approach for accurate determination of the in-plane thermal conductivity of AlN thin films and beyond
Murrieta-Cortes, J. P., Walwil, H., Encomendero, J., Xu, Q., Zhou, H., Tiwari, J., Kim, E., Feng, T., Jena, D., Xing, H. G. & Choi, S., Sep 15 2026, In: International Journal of Heat and Mass Transfer. 266, 128853.Research output: Contribution to journal › Article › peer-review
Thermal Design Guidelines for Multifinger GaN HEMTs
Shoemaker, D. C., Kim, S., Walwil, H., Zivasatienraj, B., Srivastava, P., Wildeson, I. & Choi, S., May 1 2026, In: IEEE Transactions on Electron Devices. 73, 5, p. 2519-2525 7 p.Research output: Contribution to journal › Article › peer-review
High thermal boundary conductance across a GaN/SiC interface characterized via signal-ratio-based dual-frequency time-domain thermoreflectance
Walwil, H., Song, Y., Lee, S. H., Wildeson, I., Zivasatienraj, B., Redwing, J. M. & Choi, S., Feb 21 2026, In: Journal of Applied Physics. 139, 7, 075103.Research output: Contribution to journal › Article › peer-review
High Thermal Conductivity Transfer-Printed Polycrystalline Diamond Membranes for Device- and Chip-Level Thermal Management
Walwil, H., Wang, C., Kim, S., Zhou, X., Suter, L., Muehle, M., Kim, T. K., Kim, M., Oh, J., Kwak, J. S., Seo, J. H. & Choi, S., Jul 14 2026, In: ACS Applied Electronic Materials. 8, 13, p. 5228-5237 10 p.Research output: Contribution to journal › Article › peer-review
Comparison of the MOCVD growth and properties of wafer-scale transition metal dichalcogenide epitaxial monolayers
Choudhury, T. H., Trainor, N., Chen, C., Chubarov, M., Bachu, S., Momeni, K., Lundh, J. S., Hickey, D. R., Zhang, T., Sebastian, A., Zhu, H., Song, B., Chen, Y., Huet, B., Bansal, A., Choi, S., Alem, N., Terrones, M., Jariwala, D. & Das, S. & 1 others, , Oct 1 2025, In: 2D Materials. 12, 4, 045009.Research output: Contribution to journal › Article › peer-review
Phonon transport in Al-rich AlxGa1−xN thin films
Kang, K., Pathak, A., Song, Y., Walwil, H., Mirabito, T., McIlwaine, N. S., Ji, M., Larkin, L. A. S., Saltonstall, C. B., Allerman, A. A., Maria, J. P., Redwing, J. M., Malen, J. A., McGaughey, A. J. H. & Choi, S., Aug 28 2025, In: Journal of Applied Physics. 138, 8, 085101.Research output: Contribution to journal › Article › peer-review
Thermal analysis of base metal electrode multilayer ceramic capacitors
Kang, K., Shoemaker, D. C., Yousefian, P., Cockburn, J., Ellmore, A., Lanagan, M. T., Randall, C. A., Trolier-McKinstry, S. & Choi, S., Oct 2025, In: Journal of the American Ceramic Society. 108, 10, e70020.Research output: Contribution to journal › Article › peer-review
Characterization of hotspot formation in AlGaN/GaN HEMTs by probing Raman scattering through an optically transparent gate
Karim, A., Shoemaker, D. C., Kim, T. K., Kwak, J. S. & Choi, S., Jul 21 2025, In: Journal of Applied Physics. 138, 3, 034507.Research output: Contribution to journal › Article › peer-review
A Comparative Analysis of Electrical and Optical Thermometry Techniques for AlGaN/GaN HEMTs
Kim, S., Shoemaker, D. C., Karim, A., Walwil, H., Dejarld, M. T., Tahhan, M. B., Vaillancourt, J., Chumbes, E. M., Laroche, J. R., Pavlidis, G., Graham, S. & Choi, S., 2025, In: IEEE Transactions on Electron Devices. 72, 1, p. 162-168 7 p.Research output: Contribution to journal › Article › peer-review
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