KIM GROUP · POSTECH

Publications

2026

  1. Highly efficient, deep-ultraviolet luminescence in hBN moire quantum wells
    Chengyun Hong*, Fangzhou Zhao*, Su-Beom Song, Sangho Yoon, Seong-Joon Jeon, M. Ajmal Khan, Ye Tao, Dong-hwan Yang, Wanhee Lee, Junho Kim, Sera Yang, Hyungseob Cho, Sumin Lee, Seok Young Min, Kenji Watanabe, Takashi Taniguchi, Seunghyup Yoo, Changsoon Cho, Si-Young Choi, Hideki Hirayama, Lede Xian, Moon-Ho Jo†, Angel Rubio†, Jonghwan Kim†
    Science 391, 6791 (2026)
  2. Natural hyperbolicity of hexagonal boron nitride in the deep ultraviolet
    Bongjun Choi, Jason Lynch, Wangleong Chen, Seong-Joon Jeon, Hyungseob Cho, Kyungmin Yang, Jonghwan Kim†, Nader Engheta†, Deep Jariwala†
    Nature Communications 17, 2869 (2026)
  3. Observation of a high-temperature excitonic insulating phase in a monolayer Ta2NiSe5
    So Young Kim*, Kwangrae Kim*, Dowook Kim, Ji Eun Lee, Jieun Seok, Chang Il Kwon, Jo Hyun Yoon, Chang-Jong Kang, Jae Hoon Kim, H. W. Yeom, Tae-Hwan Kim†, Jonghwan Kim†, B. J. Kim†, Jun Sung Kim†
    Under Review

2025

  1. Quantum interference and occupation control in high harmonic generation from monolayer WS2
    Minjeong Kim*, Taeho Kim*, Anna Galler*, Dasol Kim, Alexis Chacon, Xiangxin Gong, Yuhui Yang, Rouli Fang, Kenji Watanabe, Takashi Taniguchi, B. J. Kim, Sang Hoon Chae, Moon-Ho Jo, Angel Rubio†, Ofer Neufeld†, Jonghwan Kim†
    Nature Communications 16, 9825 (2025)
  2. Single-crystalline monolayer semiconductors with coherent quantum transport by vicinal van der Waals epitaxy
    Gunho Moon*, Suk-Ho Lee*, Hyunje Cho*, Heewon Park, Heonsu Ahn, Chang-Won Choi, Sera Yang, Seung-Hyun Shin, Jinjae Kim, Jong Yun Choi, Seok-Young Min, Sumin Lee, Hyunjin Jung, Jaeyoung Kim, Jewook Park, Han Woong Yeom, Gil-Ho Lee, Myungchul Oh, Jong-Hoon Kang, Hyunyong Choi, Cheol-Joo Kim, Jonghwan Kim, Si-Young Choi, Moon-Ho Jo†
    Nature Electronics 8, 1182 (2025)
  3. High momentum two-dimensional propagation of emitted photoluminescence coupled with surface lattice resonance
    Yeonjeong Koo, Dong Kyo Oh, Jungho Mun, Artem N. Abramov, Mikhail Tyugaev, Yong Bin Kim, Inki Kim, Tae Ho Kim, Sera Yang, Yeseul Kim, Jonghwan Kim, Vasily Kravtsov, Junsuk Rho, Kyoung-Duck Park†
    Light: Science & Application 14, 218 (2025)
  4. Direct Imaging of Co-CUK-1 Framework with H2O Guests
    Dong-Hwan Yang, Minjeong Kim, Jinyoung Ko, Gi-Yeop Kim, Hyung Gyu Park, Sarah S. Park, Kyung Ho Cho, Ji Sun Lee, Jong-San Chang, U-Hwang Lee, Ryo Ishikawa, Naoya Shibata, Yousung Jung, Jonghwan Kim†, Teruyasu Mizoguchi†, Si-Young Choi†
    Small 21, 2411292 (2025)
  5. Electrical generation of color centers in hexagonal boron nitride
    Ivan Zhigulin*, Gyuna Park*, Karin Yamamura, Kenji Watanabe, Takashi Taniguchi, Milos Toth, Jonghwan Kim†, Igor Aharonovich†
    ACS Appl. Mater. Interfaces 17, 24129-24136 (2025)
  6. High harmonic generation in van der Waals two-dimensional materials
    Dasol Kim, Alexis Chacon, Jonghwan Kim†
    Curr. Opt. Photon. 9(2), 95-107 (2025)

2024

  1. Narrowband electroluminescence from color centers in hexagonal boron nitride
    Gyuna Park*, Ivan Zhigulin*, Hoyoung Jung, Jake Horder, Karin Yamamura, Yerin Han, Kenji Watanabe, Takashi Taniguchi, Igor Aharonovich†, Jonghwan Kim†
    Nano Letters 24, 15268-15274 (2024)
  2. Dephasing dynamics accessed by high harmonic generation: Determination of electron-hole coherence of dirac fermions
    Youngjae Kim, Minjeong Kim, Soonyoung Cha, Shinyoung Choi, Cheol-Joo Kim, B. J. Kim, Moon-Ho Jo, Jonghwan Kim†, J.D. Lee†
    Nano Letters 24, 1277-1283 (2024)
  3. Integrated 1D epitaxial mirror twin boundaries for ultrascaled 2D MoS2 field-effect transistors
    Heonsu Ahn*, Gunho Moon*, Hang-gyo Jung, Bingchen Deng, Dong-Hwan Yang, Sera Yang, Cheolhee Han, Hyunje Cho, Youngki Yeo, Cheol-Joo Kim, Chan-Ho Yang, Jonghwan Kim, Si-Young Choi, Hongkun Park, Jongwook Jeon, Jin-Hong Park, Moon-Ho Jo†
    Nature Nanotechnology 19, 955-961 (2024)
  4. Electroluminescence and photocurrent generation in pn-diode of trilayer phosphorene
    Sangho Yoon*, Taeho Kim*, Su-beom Song, Kenji Watanabe, Takashi Taniguchi, Jonghwan Kim†
    Journal of the Korean Physical Society 85, 520-524 (2024)
  5. Step-Directed Epitaxy of Unidirectional Hexagonal Boron Nitride on Vicinal Ge(110)
    Ju-Hyun Jung, Chao Zhao, Seong-Jun Yang, Jun-Ho Park, Woo-Ju Lee, Su-Beom Song, Jonghwan Kim, Chan-Cuk Hwang, Seung-Hwa Baek, Feng Ding, Cheol-Joo Kim
    Small Struct. 5, 2400297 (2024)
  6. Correlation-driven nonequilibrium exciton site transition in a WSe2/WS2 moiré supercell
    Jinjae Kim, Jiwon Park, Hyojin Choi, Taeho Kim, Soonyoung Cha, Yewon Lee, Kenji Watanabe, Takashi Taniguchi, Jonghwan Kim, Moon-Ho Jo, Hyunyong Choi
    Nature Communications 15, 3312 (2024)

2023

  1. Quantum spin nematic phase in a square-lattice iridate
    Hoon Kim, Jin-Kwang Kim, Junyoung Kwon, Jimin Kim, Hyun-Woo J. Kim, Seunghyeok Ha, Kwangrae Kim, Wonjun Lee, Jonghwan Kim, Gil Young Cho, Hyeokjun Heo, Joonho Jang, C. J. Sahle, A. Longo, J. Strempfer, G. Fabbris, Y. Choi, D. Haskel, Jungho Kim, J. -W. Kim, B. J. Kim†
    Nature 625, 264-269 (2023)
  2. Customizing radiative decay dynamics of two-dimensional excitons via position- and polarization-dependent vacuum-field interference
    Sanghyeok Park*, Dongha Kim*, Yun-Seok Choi, Arthur Baucour, Donghyeong Kim, Sangho Yoon, Kenji Watanabe, Takashi Taniguchi, Jonghwa Shin, Jonghwan Kim, Min-Kyo Seo†
    Nano Letters 23(6), 2158-2165 (2023)

2022

  1. Gate-tunable quantum pathways of high harmonic generation in graphene
    Soonyoung Cha*, Minjeong Kim*, Youngjae Kim*, Shinyoung Choi, Sejong Kang, Hoon Kim, Sangho Yoon, Gunho Moon, Taeho Kim, Ye Won Lee, Gil Young Cho, Moon Jeong Park, Cheol-Joo Kim, B. J. Kim, JaeDong Lee†, Moon-Ho Jo†, Jonghwan Kim†
    Nature Communications 13, 6630 (2022)
  2. Photoluminescence path bifurcations by spin flip in two-dimensional CrPS4
    Suhyeon Kim*, Sangho Yoon*, Hyo-Bin Ahn, Gangtae Jin, Moon-Ho Jo, Changgu Lee, Jonghwan Kim†, Sunmin Ryu†
    ACS Nano 16(10), 16385 (2022)
  3. Sr2IrO4/Sr3Ir2O7 superlattice for a model two-dimensional quantum Heisenberg antiferromagnet
    Hoon Kim, Joel Bertinshaw, J. Porras, B. Keimer, Jungho Kim, J.-W. Kim, Jimin Kim, Jonghwan Kim, Gahee Noh, Gi-Yeop Kim, Si-Young Choi, B. J. Kim†
    Phys. Rev. Research 4, 013229 (2022)

2021

  1. Deep-ultraviolet electroluminescence and photocurrent generation in graphene/hBN/graphene heterostructures
    Su-Beom Song*, Sangho Yoon*, So Young Kim, Sera Yang, Seung-Young Seo, Soonyoung Cha, Hyeon-Woo Jeong, Kenji Watanabe, Takashi Taniguchi, Gil-Ho Lee, Jun Sung Kim, Moon-Ho Jo, Jonghwan Kim†
    Nature Communications 12, 7134 (2021)
    [전자신문, Eurekalert!]
  2. Emerging superconductivity from a stripe charge order in IrTe2 nanoflakes
    Sungyu Park*, So Young Kim*, Hyoung Kug Kim, Min Jeong Kim, Taeho Kim, Hoon Kim, Gyu Seung Choi, C. J. Won, Sooran Kim, Kyoo Kim, Evgeny F. Talantsev, Kenji Watanabe, Takashi Taniguchi, Sang-Wook Cheong, B. J. Kim, H. W. Yeom, Jonghwan Kim†, Tae-Hwan Kim†, Jun Sung Kim†
    Nature Communications 12, 3157 (2021)
  3. Electrical control of anisotropic and tightly bound excitons in bilayer phosphorene
    Sangho Yoon*, Taeho Kim*, Seung-Young Seo, Seung-Hyun Shin, Su-Beom Song, B. J. Kim, Kenji Watanabe, Takashi Taniguchi, Gil-Ho Lee, Moon-Ho Jo, Diana Y. Qiu†, Jonghwan Kim†
    Phys. Rev. B 103, L041407 (2021)
  4. Heteroepitaxial van der Waals Semiconductor superlattices
    Gangtae Jin*, Chang-Soo Lee*, Odongo F. N. Okello, Suk-Ho Lee, Min Yeong Park, Soonyoung Cha, Seung-Young Seo, Gunho Moon, Seok Young Min, Dong-Hwan Yang, Cheolhee Han, Hyungju Ahn, Jekwan Lee, Hyunyong Choi, Jonghwan Kim, Si-Young Choi, Moon Ho Jo†
    Nature Nanotechnology 16, 1092 (2021)
  5. Observation of excitonic instability in Ta2NiSe5
    Kwangrae Kim*, Hoon Kim*, Jonghwan Kim, Changil Kwon, Jun Sung Kim, B. J. Kim†
    Nature Communications 12, 1969 (2021)
  6. γ-GeSe: a New Hexagonal Polymorph from Group IV–VI Monochalcogenides
    Sol Lee, Joong-Eon Jung, Han-gyu Kim, Yangjin Lee, Je Myoung Park, Jeongsu Jang, Sangho Yoon, Arnab Ghosh, Minseol Kim, Joonho Kim, Woongki Na, Jonghwan Kim, Hyoung Joon Choi, Hyeonsik Cheong, Kwanpyo Kim†
    Nano Letters 21, 4305-4313 (2021)

2020

  1. Evidence of higher-order topology in multilayer WTe2 from Josephson coupling through anisotropic hinge states
    Yong-Bin Choi*, Yingming Xie*, Chui-Zhen Chen, Jin-Ho Park, Su-Beom Song, Jiho Yoon, Bum Joon Kim, Takashi Taniguchi, Kenji Watanabe, Jonghwan Kim, Kin Chung Fong†, Mazhar N. Ali†, Kam Tuen Law†, Gil-Ho Lee†
    Nature Materials 19, 974 (2020)
  2. Nanowire Probe Interferometer for Scalable Humidity Mapping
    Namho Kim, Junho Lee, Moon-Jung Yong, Un Yang, Ji Tae Kim, Jonghwan Kim, Byung Mook Weon, Chong Cook Kim, Jung Ho Je†
    Advanced Materials Technologies 5, 1002 (2020)

2019

  1. Atomically thin three-dimensional membranes of van der Waals semiconductors by wafer-scale growth
    G. Jin, C. Lee, X. Liao, J. Kim, Z. Wang, O. F. N. Okello, B. Park, J. Park, C. Han, H. Heo, J. Kim, S. Oh, S. Choi, H. Park, M. Jo†
    Science Advances 5(7), eaaw3180 (2019)

2018

  1. Imaging of pure spin-valley diffusion current in WS2-WSe2 heterostructures
    C. Jin*, J. Kim*, M. I. B. Utama, E. C. Regan, H. Kleemann, H. Cai, Y. Shen, M. J. Shinner, A. Sengupta, K. Watanabe, T. Taniguchi, S. Tongay, A. Zettl, F. Wang†
    Science 360, 893 (2018)
  2. The role of momentum-dark excitons in the elementary optical response of bilayer WSe2
    J. Lindlau, M. Selig, A. Neumann, L. Colombier, J. Forste, V. Funk, M. Forg, J. Kim, G. Berghauser, T. Taniguchi, K. Watanabe, F. Wang, E. Malic, A. Hogele†
    Nature Communications 9, 2586 (2018)
  3. Reconfiguring crystal and electronic structures of MoS2 by substitutional doping
    Joonki Suh, Teck Leong Tan, Weijie Zhao, Joonsuk Park, Der-Yuh Lin, Tae-Eon Park, Jonghwan Kim, Chenhao Jin, Nihit Saigal, Sandip Ghosh, Zicong Marvin Wong, Yabin Chen, Feng Wang, Wladyslaw Walukiewicz, Goki Eda, Junqiao Wu†
    Nature Communications 9, 199 (2018)

2017

  1. Observation of ultralong valley lifetime in WSe2/MoS2 heterostructures
    J. Kim*, C. Jin*, B. Chen, H. Cai, T. Zhao, P. Lee, S. Kahn, K. Watanabe, T. Taniguchi, S. Tongay, M. F. Crommie, F. Wang†
    Science Advances 3, e1700518 (2017)
  2. Apparent breakdown of Raman selection rule at valley exciton resonances in monolayer MoS2
    S. G. Drapcho, J. Kim, X. Hong, C. Jin, S. Shi, S. Tongay, J. Wu, F. Wang†
    Physical Review B 95, 165417 (2017)
  3. Interlayer electron-phonon coupling in WSe2/hBN heterostructures
    C. Jin*, J. Kim*, J. Suh, K. Wu, B. Chen, Z. Shi, S. G. Drapcho, M. Kam, K. Watanabe, T. Taniguchi, S. Tongay, J. Wu, F. Wang†
    Nature Physics 13, 127-131 (2017)
  4. Direct observation of layer-dependent electronic structure in phosphorene
    L. Li*, J. Kim*, C. Jin*, G. Ye, D. Y. Qiu, F. H. Jornada, Z. Shi, L. Chen, Z. Zhang, F. Yang, K. Watanabe, T. Taniguchi, W. Ren, S. G. Louie†, X. Chen†, Y. Zhang†, F. Wang†
    Nature Nanotechnology 12, 21-25 (2017)

2010 ~ 2016

  1. On optical dipole moment and radiative recombination lifetime of excitons in WSe2
    C. Jin*, J. Kim*, K. Wu, B. Chen, E. S. Barnard, J. Suh, Z. Shi, S. G. Drapcho, J. Wu, P. J. Schuck, S. Tongay, F. Wang†
    Advanced Functional Materials, DOI:10.1002/adfm.201601741 (2016)
  2. Surface-normal electro-optic spatial light modulator using graphene integrated on a high-contrast grating resonator
    T. Sun*, J. Kim*, J Yuk, A. Zettl, F. Wang, C. Chang-Hasnain
    Optics Express 24(23), 26035-26043 (2016)
  3. Soliton-dependent plasmon reflection at bilayer graphene domain walls
    L. Jiang*, Z. Shi*, B. Zeng, S. Wang, J. Kang, T. Joshi, C. Jin, L. Ju, J. Kim, T. Lyu, Y. R. Shen, M. Crommie, H. Gao, F. Wang†
    Nature Materials 15, 840-844 (2016)
  4. Electronic structure, surface doping and optical response in epitaxial WSe2 thin films
    Y. Zhang†, M. M. Ugeda, C. Jin, S. Shi, A. J. Bradley, A. M. Recio, H. Ryu, J. Kim, S. Tang, Y Kim, B. Zhou, C. Hwang, Y. Chen, F. Wang, M. F. Crommie, Z. Hussain, Z. X. Shen†, S. Mo
    Nano Letters 16, 2485-2491 (2016)
  5. Ultrafast generation of pseudo-magnetic field for valley excitons in WSe2 monolayers
    J. Kim*, X. Hong*, C. Jin, S. Shi, C. S. Chang, M. C. Chiu, L. Li, F. Wang†
    Science 346, 1205-1208 (2014)
  6. Ultrafast charge transfer in atomically thin MoS2/WS2 heterostructures
    X. Hong*, J. Kim*, SF Shi*, Y. Zhang, C. Jin, Y. Sun, S. Tongay, J. Wu, Y. Zhang, F. Wang†
    Nature Nanotechnology 9, 682-686 (2014)
  7. Graphene for tunable nanophotonic resonators
    A. Majumdar, J. Kim, J. Vuckovic, F. Wang
    IEEE J. Sel. Top. Quantum Electron. 20(1), 68-71 (2014)
  8. Probing local strain at MX2-Metal boundaries with surface plasmon enhanced Raman scattering
    Y. Sun†, K. Liu, X. Hong, M. Chen, J. Kim, S. Shi, J. Wu, A. Zettl, F Wang†
    Nano Letters 14, 5329-5334 (2014)
  9. Three-dimensional spirals of atomic layered MoS2
    L. Zhang, K. Liu, AB Wong, J. Kim, X. Hong, C. Liu, T. Cao, SG Louie, F. Wang†, P. Yang†
    Nano Letters 14, 6418-6423 (2014)
  10. Electrical control of silicon photonic crystal cavity by graphene
    A. Mujumdar*, J. Kim*, J. Vuckovic, F. Wang†
    Nano Letters 13, 515-518 (2013)
  11. Electrical control of optical plasmon resonance with graphene
    J. Kim, H. Son, DJ Cho, B. Geng, W. Regan, S. Shi, K. Kim, A. Zettl, YR Shen, F. Wang†
    Nano Letters 12, 5598-5602 (2012)
  12. Emerging photoluminescence in monolayer MoS2
    A. Splendiani, L. Sun, Y. Zhang, T. Li, J. Kim, CY Chim, G. Galli, F. Wang†
    Nano Letters 10, 1271-1275 (2010)