Publication List
Peer-reviewed Journal Papers
(*Corresponding author, #Equal contributions)
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Submitted
Jixiang Jing#, Yicheng Wang#, Zhuoran Wang, Yumeng Luo, Linjie Ma, Tongtong Zhang, Chunlin Song, Jiangyu Li, Kwai Hei Li, Dong-Keun Ki, Ji Tae Kim, and Zhiqin Chu*, "Wafer-scale integration of single nanodiamonds via electrostatic-trapping", arXiv:2509.23032 (2025).
Hongxia Xue#, Hsun-Chi Chan#, Zuzhang Lin#, Dalin Boriçi#, Shaobo Zhou#, Yanan Wang, Kenji Watanabe, Takashi Taniguchi, Cristiano Ciuti*, Wang Yao, Dong-Keun Ki*, and Shuang Zhang*, "Observation of Cavity-Mediated Nonlinear Landau Fan and Modified Landau Level Degeneracy in Graphene Quantum Transport", arXiv:2506.21409 (2025).
2025
45. Guoyun Gao#, Bo Wen#, Ni Yang, Zhiyuan Du, Mingrui Jiang, Ruibin Mao, Rui Qiu, Yingnan Cao, Hongxia Xue, Deng Zou, Pak San Yip, Qihan Liu, Yi Wan, Dong-Keun Ki, Jinyao Tang, Paddy K. L. Chan, Hao Jiang, Han Wang, Lain-Jong Li*, and Can Li*, "Sb-contacted MoS2 flash memory for analog in-memory searches", Nat. Nanotech. in press (2025).
44. Yicheng Wang#, Jixiang Jing#, Yumeng Luo#, Xiaomin Wang, Kuan Liang, Changsheng Chen, Dong-Keun Ki, Ye Zhu, Zhongqiang Wang, Qi Wang, Keyou Yan, Yuhao Zhang, Han Wang, Kwai Hei Li*, and Zhiqin Chu*, "Self-Powered, Ultra-thin, Flexible, and Scalable Ultraviolet Detector Utilizing Diamond-MoS2 Heterojunction", Nano Lett. 15, 16115 (2025).43. Yicheng Wang#, Jixiang Jing#, Yumeng Luo, Linjie Ma, Xiaomin Wang, Yuhao Zhang, Dong-Keun Ki, Zhongqiang Wang, Qi Wang*, Kwai Hei Li*, and Zhiqin Chu*, "A Versatile Method for Nano-Fabrication on Diamond Film: Flexible Diamond Metasurfaces as a Demonstration", Adv. Opt. Mater. 13, 2403429 (2025).
42. Hongbo Mo, Lian Wang, Yin Li, Tao Zhu, Aleksandr Sergeev, Jingbo Wang, Yanliong He, Zhilin Ren, Atta Ur Rehman, Muhammad Umair Ali, Yueyang Wang, Dong-Keun Ki, Kam Sing Wong, Gang Li*, Jasminka Popović, and Aleksandra. B. Djurišić*, "Multifunctional Universal Additive for Stable and Efficient Inverted Perovskite Solar Cells", Adv. Energy Mater. 15, 2500088 (2025).
41. Xingyu Yue, Yipu Xia, Degong Ding, Weng Fu IO, Daliang He, Chao He, Yueyang Wang, Hongxia Xue, Yuanjun Jin, Mengfei Yuan, Junqiu Zhang, Wing Kin Ho, Hu Xu, Dong-Keun Ki, Jianhua Hao, Chuanhong Jin, and Maohai Xie*, "Single-Layer MoSeN – a Synthetic Janus Two-Dimensional Transition-Metal Compound Grown by Plasma-Assisted Molecular Beam Epitaxy", 2D Mater. 12, 025004 (2025).
40. Shuang Qiao*, Jihong Liu, Chengdong Yao, Ni Yang, Fangyuan Zheng, Wanqing Meng, Yi Wan, Philip C.Y. Chow, Dong-Keun Ki, Lijie Zhang, Yumeng Shi, and Lain-Jong Li*, "Boosting bulk photovoltaic effect in transition metal dichalcogenide by edge semimetal contact", Light Sci. Appl. 14, 22 (2025).Conference paper
2. Guoyun Gao#, Bo Wen#, Ni Yang, Zhiyuan Du, Mingrui Jiang, Ruibin Mao, Yingnan Cao, Hongxia Xue, Pak San Yip, Qihan Liu, Dong-Keun Ki, Jinyao Tang, Paddy K. L. Chan, Hao Jiang, Han Wang, Lain-Jong Li, and Can Li*, "Enabling Highly-Efficient, Low-Latency Analog CAM Operations with Optimized MoS2 Flash Memory Devices", 2025 9th IEEE Electron Devices Technology & Manufacturing Conference (EDTM), 1-3 (2025).
1. Ni Yang, Ji Zhang, Yu-Ming Chang, Fangyuan Zheng, Lingqi Li, Chenyang Li, Jian Liu, DongKeun Ki, Yi Wan, Sean Li, Kah-Wee Ang, Jing-Kai Huang, and Lain-Jong Li, "High-Performance 2D FETs with Single-Crystal Anatase TiO2 High-κ Dielectric", 2025 9th IEEE Electron Devices Technology & Manufacturing Conference (EDTM), 1-3 (2025).
Selected past publications
Tianyu Zhang, Shuang Qiao, Hongxia Xue, Zhongqi Wang, Chengdong Yao, Xiong Wang, Kai Feng, Lain-Jong Li, and Dong-Keun Ki*, "Accurate Layer-Number Determination of Hexagonal Boron Nitride Using Optical Characterization", Nano Lett. 24, 14774 (2024).
Yueyang Wang, Hongxia Xue, Xiong Wang, Kenji Watanabe, Takashi Taniguchi, and Dong-Keun Ki*, "Coulomb drag in graphene/hBN/graphene moiré heterostructures", Phys. Rev. Lett. 133, 186301 (2024), arXiv:2405.20393.
Qing Rao#, Wun-Hao Kang#, Hongxia Xue, Ziqing Ye, Xuemeng Feng, Kenji Watanabe, Takashi Taniguchi, Ning Wang, Ming-Hau Liu*, and Dong-Keun Ki*, "Ballistic transport spectroscopy of spin-orbit-coupled bands in monolayer graphene on WSe2", Nature Commun. 14, 6124 (2023), arXiv:2303.01018.
Heekwon Lee, Zhuoran Wang, Qing Rao, Sanghyeon Lee, Xiao Huan, Yu Liu, Jihyuk Yang, Mojun Chen, Dong-Keun Ki*, and Jitae Kim*, "Additive Manufacturing of Thermoelectric Microdevices for Four-Dimensional Thermometry", Adv. Mater. 35, 2301704 (2023). *Featured in a frontispiece
Youngwoo Nam, Dong-Keun Ki, David Soler-Delgado, and Alberto F. Morpurgo*, "A family of finite-temperature electronic phase transitions in graphene multilayers", Science 362, 324 (2018).
Youngwoo Nam, Dong-Keun Ki, David Soler-Delgado, and Alberto F. Morpurgo*, "Electron-hole collision limited transport in charge-neutral bilayer graphene", Nature Phys. 13, 1207 (2017).
Zhe Wang, Dong-Keun Ki, Diego Mauro, Jun Yong Khoo, Leonid Levitov, and Alberto F. Morpurgo*, "Origin and magnitude of ‘designer’ spin-orbit interaction in graphene on semiconducting transition metal dichalcogenides", Phys. Rev. X 6, 041020 (2016), 150+ citations. Zhe Wang, Dong-Keun Ki, Hua Chen, Allan H. MacDonald, and Alberto F. Morpurgo*, "Strong interface-induced spin-orbit interaction in graphene on WS2" Nature Commun. 6, 8339 (2015), 300+ citations, *highly-cited paper (top 1% in Physics as of Sept/Oct 2024, Web of Science). Anya L. Grushina, Dong-Keun Ki, Mikito Koshino, Aurelien A. L. Nicolet, Clément Faugeras, Edward McCann, Marek Potemski, and Alberto F. Morpurgo*, "Insulating state in tetralayers reveals an even-odd interaction effect in graphene multilayers", Nature Commun. 6, 6419 (2015). Dong-Keun Ki, Vladimir I. Fal'ko, Dmitry A. Abanin, and Alberto F. Morpurgo*, "Observation of Even Denominator Fractional Quantum Hall Effect in Suspended Bilayer Graphene", Nano Lett. 14, 2135 (2014), 100+ citations. Nuno J. G. Couto, Davide Costanzo, Dong-Keun Ki, Kenji Watanabe, Takashi Taniguchi, Francisco Guinea, and Alberto F. Morpurgo*, "Random strain fluctuations as dominant disorder source for high-quality on-substrate graphene devices", Phys. Rev. X 4, 041019 (2014), 150+ citations. Dong-Keun Ki and Alberto F. Morpurgo*, "High-Quality Multiterminal Suspended Graphene Devices", Nano Lett. 13, 5165 (2013).Anya L. Grushina, Dong-Keun Ki, and Alberto F. Morpurgo*, "A ballistic pn junction in suspended graphene with split bottom gates", Appl. Phys. Lett. 102, 223102 (2013).
Dong-Keun Ki and Alberto F. Morpurgo*, "Crossover from Coulomb Blockade to Quantum Hall Effect in Suspended Graphene Nanoribbons", Phys. Rev. Lett. 108, 266601 (2012).Seung-Geol Nam, Dong-Keun Ki, and Hu-Jong Lee*, "Thermoelectric transport of massive Dirac fermions in bilayer graphene", Phys. Rev. B 82, 245416 (2010), 100+ citations.
Dong-Keun Ki and Hu-Jong Lee*, "Quantum-Hall resistances of a multiterminal top-gated graphene device", Phys. Rev. B 79, 195327 (2009). *Editors’ SuggestionDong-Keun Ki, Dongchan Jeong, Jae-Hyun Choi, Hu-Jong Lee*, and Kee-Su Park, "Inelastic scattering in a mono-layer graphene sheet: A weak-localization study", Phys. Rev. B 78, 125409 (2008), 100+ citations.
2018 - 2024
39. Jixiang Jing#, Fuqiang Sun#, Zhongqiang Wang#, Linjie Ma, Yumeng Luo, Zhiyuan Du, Tianyu Zhang, Yicheng Wang, Feng Xu, Tongtong Zhang, Changsheng Chen, Xuhang Ma, Yang He, Ye Zhu, Huarui Sun, Xinqiang Wang, Yan Zhou, James Kit Hon Tsoi, Jörg Wrachtrup, Ngai Wong, Can Li, Dong-Keun Ki, Qi Wang*, Kwai Hei Li*, Yuan Lin*, and Zhiqin Chu*, "Scalable production of ultraflat diamond membrane", Nature 636, 627 (2024). 38. Tianyu Zhang, Shuang Qiao, Hongxia Xue, Zhongqi Wang, Chengdong Yao, Xiong Wang, Kai Feng, Lain-Jong Li, and Dong-Keun Ki*, "Accurate Layer-Number Determination of Hexagonal Boron Nitride Using Optical Characterization", Nano Lett. 24, 14774 (2024). 37. Yueyang Wang, Hongxia Xue, Xiong Wang, Kenji Watanabe, Takashi Taniguchi, and Dong-Keun Ki*, "Coulomb Drag in Graphene/h-BN/Graphene Moiré Heterostructures", Phys. Rev. Lett. 133, 186301 (2024), arXiv:2405.20393.
36. Jiaming Zhou, Xiaoting Ma, Jingyi Gao, Eunjong Kim, Zihao Deng, Qing Rao, Wen-Di Li, Dong-Keun Ki, and Dong-Myeong Shin*, "Switchable Power Generation in Triboelectric Nanogenerator Toward Chip-Less Wearable Power Module Applications", Small 20, 2306980 (2024).35. Qing Rao#, Guoyun Gao#, Xinyu Wang, Hongxia Xue*, and Dong-Keun Ki*, "Scratching lithography, manipulation, and soldering of 2D materials using microneedle probes", AIP Adv. 14, 015333 (2024), arXiv:2308.05968, *Editor's Pick.
34. Qing Rao, Hongxia Xue*, and Dong-Keun Ki*, "Landau-level Spectrum and the Effect of Spin-orbit Coupling in Monolayer Graphene on Transition Metal Dichalcogenides", Phys. Status Solidi B 261, 2300397 (2024), arXiv:2310.00686.
33. Yicong Chen, Dong-Keun Ki*, Zhibing Li, and Jun Chen*, "Concept for a fractional energy barrier tunneling junction", Appl. Phys. Lett. 123, 243503 (2023).
32. Qing Rao#, Wun-Hao Kang#, Hongxia Xue, Ziqing Ye, Xuemeng Feng, Kenji Watanabe, Takashi Taniguchi, Ning Wang, Ming-Hau Liu*, and Dong-Keun Ki*, "Ballistic transport spectroscopy of spin-orbit-coupled bands in monolayer graphene on WSe2", Nature Commun. 14, 6124 (2023), arXiv:2303.01018. 31. Heekwon Lee, Zhuoran Wang, Qing Rao, Sanghyeon Lee, Xiao Huan, Yu Liu, Jihyuk Yang, Mojun Chen, Dong-Keun Ki*, and Jitae Kim*, "Additive Manufacturing of Thermoelectric Microdevices for Four-Dimensional Thermometry", Adv. Mater. 35, 2301704 (2023). *Featured in a frontispiece
30. Yipu Xia#, Degong Ding#, Ke Xiao, Junqiu Zhang, Shaogang Xu, Daliang He, Xingyu Yue, Qing Rao, Xiong Wang, Sujuan Ding, Guoyun Gao, Hongxia Xue, Yueyang Wang, Mengfei Yuan, Wingkin Ho, Dong-Keun Ki, Hu Xu, Xiaodong Cui, Chuanhong Jin*, and Maohai Xie*, "Wafer-scale single crystalline MoSe2 and WSe2 monolayers grown by molecular beam epitaxy at low-temperature - the role of island-substrate interaction and surface steps", Nat. Sci. 3, 20220059 (2023).
29. Jing Yu, Guoyun Gao, Wei Han*, Changting Wei, Yueyang Wang, Tianxiang Lin, Tianyu Zhang, Zhi Zheng, Dong-Keun Ki, Hongyuan Zhang, Man Ho Ng, Hang Liu, Shuangpeng Wang, Hao Wang, and Francis Chi-Chung Ling*, "Wafer-scale PLD-grown high-κ GCZO dielectrics for 2D electronics", Adv. Elec. Mater. 8, 2200580 (2022). *Featured in a front cover
28. Peng Yang, Jiajia Zha*, Guoyun Gao, Long Zheng, Haoxin huang, Yunpeng Xia, Songcen Xu, Tengfei Xiong, Zhuomin Zhang, Zhengbao Yang, Ye Chen, Dong-Keun Ki, Juin J. Liou, Wugang Liao*, and Chaoliang Tan*, "Growth of Tellurium Nanobelts on h-BN for p-type Transistors with Ultrahigh Hole Mobility", Nano-Micro Lett. 14, 109 (2022).27. Rashad Rashid*, Francis Chi-Chung Ling, Shuang-Peng Wang, Ke Xiao, Xiaodong Cui, Qing Rao, and Dong-Keun Ki, "IP and OOP ferroelectricity in hexagonal γ-In2Se3 nanoflakes grown by chemical vapor deposition", J. Alloys Compd. 870, 159344 (2021).
26. Mojun Chen, Jihyuk Yang, Zhenyu Wang, Zhaoyi Xu, Heekwon Lee, Hyeonseok Lee, Zhiwen Zhou, Shien-Ping Feng, Sanghyeon Lee, Jaeyeon Pyo, Seung Kwon Seol, Dong-Keun Ki, and Ji Tae Kim*, "3D Nanoprinting of Perovskites", Adv. Mater. 31, 1904073 (2019). *Featured in a front cover 25. Youngwoo Nam, Dong-Keun Ki, David Soler-Delgado, and Alberto F. Morpurgo*, "A family of finite-temperature electronic phase transitions in graphene multilayers", Science 362, 324 (2018).
2010 - 2017 in UniGE
24. Youngwoo Nam, Dong-Keun Ki, David Soler-Delgado, and Alberto F. Morpurgo*, "Electron-hole collision limited transport in charge-neutral bilayer graphene", Nature Phys. 13, 1207 (2017). 23. Lin Wang, N. Chepiga, Dong-Keun Ki, L. Li, F. Li, W. Zhu, Y. Kato, Y. Kato, O. S. Ovchinnikova, F. Mila, I. Martin, D. Mandrus, and Alberto F. Morpurgo*, "Controlling the topological sector of magnetic solitons in exfoliated Cr1/3NbS2 crystals", Phys. Rev. Lett. 118, 257203 (2017). *Editors’ Suggestion
22. Zhe Wang, Dong-Keun Ki, Diego Mauro, Jun Yong Khoo, Leonid Levitov, and Alberto F. Morpurgo*, "Origin and magnitude of ‘designer’ spin-orbit interaction in graphene on semiconducting transition metal dichalcogenides", Phys. Rev. X 6, 041020 (2016).
21. Lin Wang, Ignacio Gutiérrez-Lezama, Céline Barreteau, Dong-Keun Ki, Enrico Giannini, and Alberto F. Morpurgo*, "Direct observation of long-range field-effect from gate tuning of non-local conductivity", Phys. Rev. Lett. 117, 176601 (2016). *Editors’ Suggestion
20. Youngwoo Nam, Dong-Keun Ki*, Mikito Koshino, Edward McCann, and Alberto F. Morpurgo*, "Interaction-induced insulating state in thick multilayer graphene", 2D Mater. 3, 045014 (2016).
19. Zhe Wang, Dong-Keun Ki, Hua Chen, Allan H. MacDonald, and Alberto F. Morpurgo*, "Strong interface-induced spin-orbit interaction in graphene on WS2" Nature Commun. 6, 8339 (2015).
18. Anya L. Grushina, Dong-Keun Ki, Mikito Koshino, Aurelien A. L. Nicolet, Clément Faugeras, Edward McCann, Marek Potemski, and Alberto F. Morpurgo*, "Insulating state in tetralayers reveals an even-odd interaction effect in graphene multilayers", Nature Commun. 6, 6419 (2015).
17. Nuno J. G. Couto, Davide Costanzo, Dong-Keun Ki, Kenji Watanabe, Takashi Taniguchi, Francisco Guinea, and Alberto F. Morpurgo*, "Random strain fluctuations as dominant disorder source for high-quality on-substrate graphene devices", Phys. Rev. X 4, 041019 (2014).
16. Dong-Keun Ki, Vladimir I. Fal'ko, Dmitry A. Abanin, and Alberto F. Morpurgo*, "Observation of Even Denominator Fractional Quantum Hall Effect in Suspended Bilayer Graphene", Nano Lett. 14, 2135 (2014).
15. Dong-Keun Ki and Alberto F. Morpurgo*, "High-Quality Multiterminal Suspended Graphene Devices", Nano Lett. 13, 5165 (2013).
14. Christophe Caillier, Dong-Keun Ki, Yuliya Lisunova, Laroslav Gaponenko, Patrycja Paruch, and Alberto F. Morpurgo*, "Identification of a strong contamination source for graphene in vacuum systems", Nanotech. 24, 405201 (2013).
13. Anya L. Grushina, Dong-Keun Ki, and Alberto F. Morpurgo*, "A ballistic pn junction in suspended graphene with split bottom gates", Appl. Phys. Lett. 102, 223102 (2013).
12. Dong-Keun Ki and Alberto F. Morpurgo*, "Crossover from Coulomb Blockade to Quantum Hall Effect in Suspended Graphene Nanoribbons", Phys. Rev. Lett. 108, 266601 (2012).
Before 2010 in POSTECH
11. Seung-Geol Nam, Dong-Keun Ki, Jong Wan Park, Youngwook Kim, Jun Sung Kim, and Hu-Jong Lee*, "Ballistic transport of graphene pnp junctions with embedded local gates", Nanotech. 22, 415203 (2011). *IOP Select
10. Sanghyun Jo, Dong-Keun Ki, Dongchan Jeong, Hu-Jong Lee*, and Stefan Kettemann, "Spin relaxation properties in graphene due to its linear dispersion", Phys. Rev. B 84, 075453 (2011).
9. Seung-Geol Nam, Dong-Keun Ki, and Hu-Jong Lee*, "Thermoelectric transport of massive Dirac fermions in bilayer graphene", Phys. Rev. B 82, 245416 (2010).
8. Dong-Keun Ki, Seung-Geol Nam, Hu-Jong Lee*, and Barbaros Özyilmaz, "Dependence of quantum-Hall conductance on the edge-state equilibration position in a bipolar graphene sheet", Phys. Rev. B 81, 033301 (2010).
7. Dong-Keun Ki and Hu-Jong Lee*, "Quantum-Hall resistances of a multiterminal top-gated graphene device", Phys. Rev. B 79, 195327 (2009). *Editors’ Suggestion
6. Dong-Keun Ki, Sanghyun Jo, and Hu-Jong Lee*, "Observation of chiral quantum-Hall edge states in graphene", Appl. Phys. Lett. 94, 162113 (2009). *Selected for the May 4, 2009 issue of Virtual Journal of Nanoscale Science & Technology
5. Dong-Keun Ki, Dongchan Jeong, Jae-Hyun Choi, Hu-Jong Lee*, and Kee-Su Park, "Inelastic scattering in a mono-layer graphene sheet: A weak-localization study", Phys. Rev. B 78, 125409 (2008).
4. Dongchan Jeong, Dong-Keun Ki, Myung-Ho Bae, Hu-Jong Lee, Chul-Ho Lee, Jinkyoung Yoo, and Gyu-Chul Yi*, "Observation of Single-Electron Transport in a Zn0.8Mg0.2O/ZnO Coaxial Heterostructure Nanorod", J. Korean Phys. Soc. 53, 962 (2008).
3. Dong-Keun Ki and Hu-Jong Lee*, "Observation of Spin-Singlet Proximity Effect in a Superconductor/Ferromagnet Interface", J. Korean Phys. Soc. 52, 386 (2008).
2. Yong-Duk Jin, Dong-Keun Ki, and Hu-Jong Lee*, "Josephson Vortex Dynamics in Tilted Magnetic Fields", Prog. Supercond. 9, 140 (2008).
1. Jonghwa Eom*, Yun-Sok Shin, Hu-Jong Lee, Dong-Kun Kie, Taegon Kim, and Jonghan Song, "Coexistence of the Kondo and the Superconducting Proximity Effects in AuFe/Al Loops", J. Korean Phys. Soc. 48, 446 (2006).
Invited Articles
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2009
2. Dong-Keun Ki and Hu-Jong Lee, "그래핀의 전자수송 특성 (Electron transport properties of graphene)", 물리학과 첨단기술 (Physics and High Technology), published by Korean Physical Society 18, No 7 / 8 (2009). *written in Korean 1. Hu-Jong Lee and Dong-Keun Ki, "Transport Properties in Graphene", APCTP Bulletin 23-24, page 7-12 (2009).