Researches
Five Representative Papers and Their Implications
1. H. Yang, J. Heo, S. Park, H J Song, D. H. Seo, K.-E Byun, P. Kim, I. Yoo, H.-J Chung, and K. Kim, Graphene Barristor, a Triode Device with a Gate-Controlled Schottky Barrier (PDF)Science, 336, 1140 (2012) -> We invented 'Graphene Barristor', a new interface and Schottky barrier-controlling device.
2. S. Cho, S. Kim, J. H. Kim, J. Zhao, J. Seok, D. H. Keum, J. Baik, D.-H. Choe, K. J. Chang, K. Suenaga, S. W. Kim*, Y. H. Lee*, H. Yang*, Phase Patterning for Ohmic Homojunction Contact in MoTe2 (PDF)Science, 349, 625-628 (2015) -> 'Ohmic homojunction device' could be achieved in a single polymorphic material.
3. H. Yang*, S. W. Kim, M. Chhowalla, Y. H. Lee, Structural and quantum-state phase transition in van der Waals layered materials (PDF)Nature Physics, 13, 931-937 (2017) -> We reported how to use 'Polymorphism of 2D materials' for novel energy-efficient devices.
4. L. Sun, Z. Wang, J. Jiang, Y. Kim, B. Joo, S. Zheng, S. Lee, W. J. Yu, B. S. Kong, H. Yang*,In-sensor Reservoir Computing for Language Learning via Two-dimensional Memristor (PDF)Science Advances, 7, eabg1455 (2021) -> Spiking neural network (SNN) quantum devices could be developed based on charge traps in 2D materials.
5. D. Kim, E. C. Shin, Y. Lee, Y. H. Lee, M. Zhao, Y.-H. Kim, H. Yang*Atomic-scale thermopower in charge density wave states (PDF)Nature Communications 13, 4516 (2022) -> We discovered 'phonon puddles' that determine atomic-scale thermoelectric features.
1. H. Yang, J. Heo, S. Park, H J Song, D. H. Seo, K.-E Byun, P. Kim, I. Yoo, H.-J Chung, and K. Kim, Graphene Barristor, a Triode Device with a Gate-Controlled Schottky Barrier (PDF)Science, 336, 1140 (2012) -> We invented 'Graphene Barristor', a new interface and Schottky barrier-controlling device.
2. S. Cho, S. Kim, J. H. Kim, J. Zhao, J. Seok, D. H. Keum, J. Baik, D.-H. Choe, K. J. Chang, K. Suenaga, S. W. Kim*, Y. H. Lee*, H. Yang*, Phase Patterning for Ohmic Homojunction Contact in MoTe2 (PDF)Science, 349, 625-628 (2015) -> 'Ohmic homojunction device' could be achieved in a single polymorphic material.
3. H. Yang*, S. W. Kim, M. Chhowalla, Y. H. Lee, Structural and quantum-state phase transition in van der Waals layered materials (PDF)Nature Physics, 13, 931-937 (2017) -> We reported how to use 'Polymorphism of 2D materials' for novel energy-efficient devices.
4. L. Sun, Z. Wang, J. Jiang, Y. Kim, B. Joo, S. Zheng, S. Lee, W. J. Yu, B. S. Kong, H. Yang*,In-sensor Reservoir Computing for Language Learning via Two-dimensional Memristor (PDF)Science Advances, 7, eabg1455 (2021) -> Spiking neural network (SNN) quantum devices could be developed based on charge traps in 2D materials.
5. D. Kim, E. C. Shin, Y. Lee, Y. H. Lee, M. Zhao, Y.-H. Kim, H. Yang*Atomic-scale thermopower in charge density wave states (PDF)Nature Communications 13, 4516 (2022) -> We discovered 'phonon puddles' that determine atomic-scale thermoelectric features.
Phase engineering of 2D materials
Spin, electron, thermal energy transport at the atomic-scale
Neuromorphic computing based on 2D quantum devices
Woohyun's frontispiece in Advanced Materials (2024).