Publications

37. “The Brain Electroencephalogram Microdisplay for Precision Neurosurgery”
Youngbin Tchoe†, Tianhai Wu†, Hoi Sang U, David M Roth, Dongwoo Kim, Jihwan Lee, Daniel R Cleary, Patricia Pizarro, Karen J Tonsfeldt, Keundong Lee, Po Chun Chen, Andrew M Bourhis, Ian Galton, Brian Coughlin, Jimmy C Yang, Angelique C Paulk, Eric Halgren, Sydney S Cash, Shadi A Dayeh
Science Translational Medicine 16(744) eadj7257 (2024)

36. "Transparent vertical nanotube electrode arrays on graphene for cellular recording and optical imaging"
Jamin Lee, Keundong Lee, Kyumeen Kang, Asad Ali, Dong Wook Kim, Hyerim Ahn, Gwanho Ko, Myunghwan Choi, Youngbin Tchoe, Hye Yoon Park, Gyu-Chul Yi
NPG Asia Materials 16(1), 13 (2024)

35. "Flexible, scalable, high channel count stereo-electrode for recording in the human brain"
Keundong Lee, Angelique C Paulk, Yun Goo Ro, Daniel R Cleary, Karen J Tonsfeldt, Yoav Kfir, John S Pezaris, Youngbin Tchoe, Jihwan Lee, Andrew M Bourhis, Ritwik Vatsyayan, Joel R Martin, Samantha M Russman, Jimmy C Yang, Amy Baohan, R Mark Richardson, Ziv M Williams, Shelley I Fried, U Hoi Sang, Ahmed M Raslan, Sharona Ben-Haim, Eric Halgren, Sydney S Cash, Shadi A Dayeh
Nature communications 15 (1), 218 (2024)

34. “Intraoperative application and early experience with novel high-resolution, high-channel-count thin-film electrodes for human microelectrocorticography"
Hao Tan, Angelique C Paulk, Brittany Stedelin, Daniel R Cleary, Caleb Nerison, Youngbin Tchoe, Erik C Brown, Andrew Bourhis, Samantha Russman, Jihwan Lee, Karen J Tonsfeldt, Jimmy C Yang, Hongseok Oh, Yun Goo Ro, Keundong Lee, Mehran Ganji, Ian Galton, Dominic Siler, Seunggu Jude Han, Kelly L Collins, Sharona Ben-Haim, Eric Halgren, Sydney S Cash, Shadi Dayeh, Ahmed M Raslan
Journal of Neurosurgery 1 (aop), 1-12 (2023)

33. “Electrochemical and electrophysiological considerations for clinical high channel count neural interfaces"
Ritwik Vatsyayan, Jihwan Lee, Andrew M Bourhis, Youngbin Tchoe, Daniel R Cleary, Karen J Tonsfeldt, Keundong Lee, Rhea Montgomery-Walsh, Angelique C Paulk, Hoi Sang U, Sydney S Cash, Shadi A Dayeh
MRS Bulletin 48, 531–546 (2023)

32. “Individually addressable and flexible pressure sensor matrixes with ZnO nanotube arrays on graphene"
Junbeom Park, Ramesh Ghosh, Minho S Song, Yunjae Hwang, Youngbin Tchoe, Rajendra Kumar Saroj, Asad Ali, Puspendu Guha, Bosung Kim, Sang-Woo Kim, Miyoung Kim, Gyu-Chul Yi
NPG Asia Materials 14(40) (2022)

31. “Constructing 2D maps of human spinal cord activity and isolating the functional midline with high-density microelectrode arrays."
Samantha M. Russman, Daniel R. Cleary, Youngbin Tchoe, Andrew M. Bourhis, Brittany Stedelin, Joel Martin, Erik C. Brown, Xinlian Zhang, Aaron Kawamoto, Won Hyung A Ryu, Ahmed M Raslan, Joseph D Ciacci, Shadi A Dayeh
Science Translational Medicine 14(664) eabq4744 (2022)

30. “Human Brain Mapping with Multi-Thousand Channel PtNRGrids Resolves Novel Spatiotemporal Dynamics”
Youngbin Tchoe†, Andrew M Bourhis†, Daniel R Cleary†, Brittany Stedelin, Jihwan Lee, Karen J Tonsfeldt, Erik C Brown, Dominic Siler, Angelique C Paulk, Jimmy C Yang, Hongseok Oh, Yun Goo Ro, Keundong Lee, Samantha Russman, Mehran Ganji, Ian Galton, Sharona Ben-Haim, Ahmed M Raslan, Shadi A Dayeh
Science Translational Medicine 14 (628), eabj1441 (2022)

29. “Ultra-Sharp Nanowire Arrays Natively Permeate, Record, and Stimulate Intracellular Activity in Neuronal and Cardiac Networks”
Ren Liu†, Jihwan Lee†, Youngbin Tchoe†, Andrew Boris, Sang Heon Lee, Deborah Pre, Gaelle Robin, Mary Elizabeth Phipps, Jennifer S. Martinez, Anne Bang, Shadi A. Dayeh
Advanced Functional Materials, 2108378 (2022)

28. “Scalable Thousand Channel Penetrating Microneedle Arrays on Flex for Multimodal and Large Area Coverage Brain-Machine Interfaces”
Sang Heon Lee, Martin Thunemann, Keundong Lee, Daniel R. Cleary, Karen Tonsfeldt, Hongseok Oh, Farid Azzazy, Youngbin Tchoe, Andrew Bourhis, Lorraine Hossain, Yun Goo Ro, Atusnori Tanaka, Kıvılcım Kiliç, Anna Devor, and Shadi A. Dayeh
Advanced Functional Materials, 2112045 (2022)

27. “An individually addressable and flexible pressure sensor matrix by ZnO nanotube arrays on graphene"
Jun Beom Park, Ramesh Ghosh, Minho Song, Yunjae Hwang, Youngbin Tchoe, Rajendra Kumar Saroj, Asad Ali, Puspendu Guha, Bosung Kim, Sang-Woo Kim, Miyoung Kim, Gyu-Chul Yi
NPG Asia Materials 14(1), 1-13 (2022)

26. “Considerations and Recent Advances in Nanoscale Interfaces with Neuronal and Cardiac Networks”
Youngbin Tchoe, Jihwan Lee, Ren Liu, Andrew M. Bourhis, Ritwik Vatsyayan, Shadi Dayeh
Applied Physics Review 8(4), 041317 (2021)

25. “Dimension-and position-controlled growth of GaN microstructure arrays on graphene films for flexible device applications”
Dongha Yoo, Keundong Lee, Youngbin Tchoe, Puspendu Guha, Asad Ali, Rajendra K Saroj, Seokje Lee, ABM Islam, Miyoung Kim, Gyu-Chul Yi
Scientific Reports 11(1), 1–7 (2021)

24. “Fabrication of piezoresistive Si nanorod-based pressure sensor arrays: A promising candidate for portable breath monitoring devices”
Ramesh Ghosh, Minho S Song, JunBeom Park, Youngbin Tchoe, Puspendu Guha, Wanhee Lee, Yoonseo Lim, Bosung Kim, Sang-Woo Kim, Miyoung Kim, Gyu-Chul Yi
Nano Energy 80, 105537 (2021)

23. “Highly Sensitive and Flexible Pressure Sensors Using Position- and Dimension-Controlled ZnO Nanotube Arrays Grown on Graphene Film”
Jun Beom Park, Minho Song, Ramesh Ghosh, Rajendra Kumar Saroj, Yunjae Hwang, Youngbin Tchoe, Hongseok Oh, Hyeonjun Baek, Yoonseo Lim, Bosung Kim, Sang-Woo Kim, Gyu-Chul Yi
NPG Asia Materials 13(1), 1–9 (2021)

22. “Vertical monolithic integration of wide-and narrow-bandgap semiconductor nanostructures on graphene films”
Youngbin Tchoe, Janghyun Jo, HoSung Kim, Heehun Kim, Hyeonjun Baek, Keundong Lee, Dongha Yoo, Won Jun Choi, Miyoung Kim, Gyu-Chul Yi
NPG Asia Materials 13(1), 1–7 (2021)

21. “Microscale Physiological Events on the Human Cortical Surface”
Angelique C Paulk, Jimmy C Yang, Daniel R Cleary, Daniel J Soper, Milan Halgren, Alexandra R O'Donnell, Sang Heon Lee, Mehran Ganji, Yun Goo Ro, Hongseok Oh, Lorraine Hossain, Jihwan Lee, Youngbin Tchoe, Nicholas Rogers, Kivilcim Kiliç, Sang Baek Ryu, Seung Woo Lee, John Hermiz, Vikash Gilja, István Ulbert, Daniel Fabó, Thomas Thesen, Werner K Doyle, Orrin Devinsky, Joseph R Madsen, Donald L Schomer, Emad N Eskandar, Jong Woo Lee, Douglas Maus, Anna Devor, Shelley I Fried, Pamela S Jones, Brian V Nahed, Sharona Ben-Haim, Sarah K Bick, Robert Mark Richardson, Ahmed M Raslan, Dominic A Siler, Daniel P Cahill, Ziv M Williams, G Rees Cosgrove, Shadi A Dayeh, Sydney S Cash
Cerebral Cortex 31(8), 3678–3700 (2021)

20. “Individually addressable, high-density vertical nanotube Schottky diode crossbar array”
Youngbin Tchoe, Minho S Song, Heehun Kim, Hyeonjun Baek, Joon Young Park, Hongseok Oh, Keundong Lee, Kyungmin Chung, Jerome K Hyun, Gyu-Chul Yi
Nano Energy 76, 104955 (2020)

19. “Scaling study of molecular beam epitaxy grown InAs/Al2O3 films using atomic force microscopy”
Arpana Agrawal, Youngbin Tchoe
Thin Solid Films 709, 138204 (2020)

18. “Selective Formation of Porous Pt Nanorods for Highly Electrochemically Efficient Neural Electrode Interfaces”
M. Ganji, A. C. Paulk, J. C. Yang, N. W. Vahidi, S. H. Lee, R. Liu, L. Hossain, E. M. Arneodo, M. Thunemann, M. Shigyo, A. Tanaka, S. B. Ryu, S. W. Lee, Y. Tchoe, M. Marsala, A. Devor, D. R. Cleary, J. R. Martin, H. Oh, V. Gilja, T. Q. Gentner, S. I. Fried, E. Halgren, S. S. Cash, S. A. Dayeh
Nano Letters 19(9), 6244-6254 (2019)

17. “GaN microstructure light-emitting diodes directly fabricated on tungsten-metal electrodes using a micro-patterned graphene interlayer”
Kunook Chung, Keundong Lee, Youngbin Tchoe, Hongseok Oh, JunBeom Park, Jerome K Hyun, Gyu-Chul Yi
Nano Energy 60, 82-86 (2019)

16. “Free-standing and ultrathin inorganic light-emitting diode array”
Youngbin Tchoe, Kunook Chung, Keundong Lee, Janghyun Jo, Kyungmin Chung, Jerome K. Hyun, Miyoung Kim, Gyu-Chul Yi
NPG Asia Materials 11 (1), 37 (2019)

15. "Real-Time Characterization Using in situ RHEED Transmission Mode and TEM for Investigation of the Growth Behaviour of Nanomaterials”
Janghyun Jo, Youngbin Tchoe, Gyu-Chul Yi, and Miyoung Kim
Scientific Reports 8, 1694 (2018)

14. “Vertical ZnO Nanotube Transistor on a Graphene Film for Flexible Inorganic Electronics”
Hongseok Oh, JunBeom Park, Woojin Choi, Heehun Kim, Youngbin Tchoe, Arpana Agrawal, Gyu‐Chul Yi
Small 14(17), 1800240 (2018)

13. “Qualitative analysis of growth mechanism of polycrystalline InAs thin films grown by molecular beam epitaxy”
Arpana Agrawal, Youngbin Tchoe, Heehun Kim, Joon Young Park
Applied Surface Science 462(31), 81-85 (2018)

12. “ZnO nanotube waveguide arrays on graphene films for local optical excitation on biological cells”
Hyeonjun Baek, Hankyul Kwak, Minho S Song, Go Eun Ha, Jongwoo Park, Youngbin Tchoe, Jerome K Hyun, Hye Yoon Park, Eunji Cheong, Gyu-Chul Yi
APL Materials 5(4) 046106 2017 (2017)

11. “Flexible resistive random access memory using NiOx/GaN microdisk arrays fabricated on graphene films”
Keundong Lee, Jong-woo Park, Youngbin Tchoe, Jiyoung Yoon, Kunook Chung, Hosang Yoon, Sangik Lee, Chansoo Yoon, Bae Park, Gyu-Chul Yi
Nanotechnology 28(20) 206202 (2017)

10. “Microtube Light-Emitting Diode Arrays with Metal Cores”
Youngbin Tchoe, Chul-Ho Lee, Jun Beom Park, Hyeonjun Baek, Kunook Chung, Janghyun Jo, Miyoung Kim, and Gyu-Chul Yi
ACS Nano 10 (3), 3114–3120 (2016)

9. “Flexible GaN Light-Emitting Diodes Using GaN Microdisks Epitaxial Laterally Overgrown on Graphene Dots"
Kunook Chung, Hyobin Yoo, Jerome K. Hyun, Hongseok Oh, Youngbin Tchoe, Keundong Lee, Hyeonjun Baek, Miyoung Kim, Gyu-Chul Yi
Advanced Materials 28 (35), 7688-7694 (2016)

8. “Real-time device-scale imaging of conducting filament dynamics in resistive switching materials”
Keundong Lee, Youngbin Tchoe, Hosang Yoon, Hyeonjun Baek, Kunook Chung, Sangik Lee, Chansoo Yoon, Bae Ho Park, Gyu-Chul Yi
Scientific Reports 6, 27451 (2016)

7. “Centimeter-sized epitaxial h-BN films”
Hongseok Oh, Janghyun Jo, Youngbin Tchoe, Hosang Yoon, Hyun Hwi Lee, Sung-Soo Kim, Miyoung Kim, Byeong-Hyeok Sohn, Gyu-Chul Yi
NPG Asia Materials 8 (11), e330 (2016)

6. “Catalyst-free growth of InAs/InxGa1−xAs coaxial nanorod heterostructures on graphene layers using molecular beam epitaxy”
Youngbin Tchoe, Janghyun Jo, Miyoung Kim, and Gyu-Chul Yi
NPG Asia Materials 7, e206 (2015)

5. “Growth and optical characteristics of high-quality ZnO thin films on graphene layers”
Suk In Park, Youngbin Tchoe, Hyeonjun Baek, Jaehyuk Heo, Jerome K Hyun, Janghyun Jo, Miyoung Kim, Nam-Jung Kim, Gyu-Chul Yi
APL Materials 3 (1), 016103 (2015)

4. “Statistical Analysis of Electrical Properties of Octanemonothiol versus Octanedithol in PEDOT: PSS-Electrode Molecular Junctions”
Hanki Lee, Hyunhak Jeong, Dongu Kim, Wang-Taek Hwang, Youngbin Tchoe, Gyu-Chul Yi, Takhee Lee
Journal of Nanoscience and Nanotechnology 15 (8), 5937-3941 (2015)

3. “Growth and characterizations of GaN micro-rods on graphene films for flexible light emitting diodes”
Kunook Chung, Hyeonjun Beak, Youngbin Tchoe, Hongseok Oh, Hyobin Yoo, Miyoung Kim, Gyu-Chul Yi
APL Materials 2 (9), 092512 (2014)

2. “Variable-Color Light-Emitting Diodes Using GaN Microdonut arrays”
Youngbin Tchoe, Janghyun Jo, Miyoung Kim, Jae;hyuk Heo, Geonwook Yoo, Cheolsoo Sone, and Gyu-Chul Yi
Advanced Materials 26 (19), 3009-3023 (2014)

1. “Skyrmion generation by current”
Youngbin Tchoe and Jung Hoon Han
Physical Review B 85, 174416 (2012)