39. “2p interlayer exciton revealed by hybridization in bilayer MoS2”, Soonyoung Cha†, Zhaoran Xu†, Tianyi Ouyang†, Hongyu Yao, Raj Kumar Paudel, Takashi Taniguchi, Kenji Watanabe, Andrew Y. Joe, Yia-Chung Chang, Nathaniel M. Gabor, and Chun Hung Lui, Submitted, doi.org/10.21203/rs.3.rs-6734783/v1 (2025).
38. “Brightening interlayer excitons by electric-field-driven hole transfer in bilayer WSe2”, Tianyi Ouyang†, Erfu Liu†, Soonyoung Cha†, Raj Kumar Paudel, Yiyang Sun, Zhaoran Xu, Takashi Taniguchi, Kenji Watanabe, Nathaniel M. Gabor, Yia-Chung Chang, and Chun Hung Lui, Submitted, arXiv:2506.22660 (2025).
37. “Protocol for patterning of van der Waals heterostructures using sequential chemical vapor deposition”, Soonyoung Cha†, Hyeuk-Jin Han†, Ji-Hoon Ahn, and Gangtae Jin, Star Protocols, 6, 103755 (2025).
36. “Electrically switching ferroelectric order in multilayer 3R-MoS2”, Tianyi Ouyang†, Soonyoung Cha†, Yiyang Sun, Takashi Taniguchi, Kenji Watanabe, Nathaniel M. Gabor, and Chun Hung Lui, Nano Letters 25, 1459-1465 (2025).
35. “Enhancing resonant second harmonic generation in bilayer WSe2 by layer-dependent exciton-polaron effect”, Soonyoung Cha†, Tianyi Ouyang†, Kenji Watanabe, Takashi Taniguchi, Nathaniel M. Gabor, and Chun Hung Lui, Nano Letters 24, 14847-14853 (2024).
34. “Correlation-driven nonequilibrium exciton site transition in a WSe2/WS2 moiré supercell”, Jinjae Kim, Jiwon Park, Hyojin Choi, Taeho Kim, Soonyoung Cha, Ye Won Lee, Kenji Watanabe, Takashi Taniguchi, Jonghwan Kim, Moon-Ho Jo, and Hyunyong Choi, Nature Communications 15, 3312 (2024).
33. “Dephasing dynamics accessed by high harmonic generation: direct determination of quantum decoherence”, Youngjae Kim, Minjeong Kim, Soonyoung Cha, Shinyoung Choi, Cheol-Joo Kim, B. J. Kim, Moon-ho Jo, Jonghwan Kim, and JaeDong Lee, Nano Letters 24, 1277-1283 (2024).
32. “Spinful hinge states in the higher-order topological insulators WTe2”, Jekwan Lee, Jaehyeon Kwon, Eunho Lee, Jiwon Park, Soonyoung Cha, Kenji Watanabe, Takashi Taniguchi, Moon-Ho Jo, and Hyunyong Choi, Nature Communications 14, 1801 (2023).
31. “Non-epitaxial single-crystal 2D material growth by geometric confinement”, Ki Seok Kim, Doyoon Lee, Celesta S. Chang, Seunghwan Seo, Yaoqiao Hu, Soonyoung Cha, Hyunseok Kim, Jiho Shin, Ju-Hee Lee, Sangho Lee, Justin S. Kim, Ki Hyun Kim, Jun Min Suh, Yuan Meng, Bo-In Park, Jung-Hoon Lee, Hyung-Sang Park, Hyun S. Kum, Moon-Ho Jo, Geun Young Yeom, Kyeongjae Cho, Jin-Hong Park, Sang-Hoon Bae, and Jeehwan Kim, Nature 614, 88-94 (2023).
30. “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, and Jonghwan Kim, Nature Communications 13, 6630 (2022).
29. “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, and Jonghwan Kim, Nature Communications 12, 7134 (2021).
28. “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, Dong Hwan Yang, Cheolhee Han, Hyungju Ahn, Jekwan Lee, Hyunyong Choi, Jonghwan Kim, Si-Young Choi, and Moon-Ho Jo, Nature Nanotechnology 16, 1092-1098 (2021).
27. “Reconfigurable photo-induced doping of two-dimensional van der Waals semiconductors using different photon energy”, Seung-Young Seo, Gunho Moon, Odongo F. N. Okello, Min Yeong Park, Cheolhee Han, Soonyoung Cha, Hyunyong Choi, Han Woong Yeom, Si-Young Choi, Jewook Park, and Moon-Ho Jo, Nature Electronics 4, 38-44 (2021).
26. “Ultrafast non-excitonic valley Hall effect using MoS2/WTe2 heterobilayer”, Jekwan Lee, Wonhyoek Heo, Myungjun Cha, Kenji Watanabe, Takashi Taniguchi, Jehyun Kim, Dohun Kim, Soonyoung Cha, Moon-Ho Jo, and Hyunyong Choi, Nature Communications 12, 1635 (2021).
25. “Light absorption and emission dominated by trions in the type-I van der Waals heterostructures”, Hyemin Bae, Suk Hyun Kim, Seungmin Lee, Minji Noh, Ouri Karni, Aidan L. O’Beirne, Elyse Barré, Sangwan Sim, Soonyoung Cha, Moon-Ho Jo, Tony F. Heinz, and Hyunyong Choi, ACS Photonics 8, 1972-1978 (2021).
24. “Programmed band-gap modulation within van der Waals semiconductor monolayers by metalorganic vapor-phase epitaxy”, Chang-Soo Lee, Gangtae Jin, Seung-Young Seo, Juho Kim, Cheolhee Han, Min Yeong Park, Heonsu Ahn, Suk-Ho Lee, Soonyoung Cha, and Moon-Ho Jo, Chemistry of Materials 32, 5084-5090 (2020).
23. “Role of weak interlayer coupling in ultrafast exciton-exciton annihilation in two-dimensional rhenium dichalcogenides”, Sangwan Sim, Doeon Lee, Jekwan Lee, Myungjun Cha, Soonyoung Cha, Wonhyeok Heo, Sungjun Cho, Wooyoung Shim, Kyusang Lee, Jinkyoung Yoo, Rohit Prasankumar, Hyunyong Choi, and Moon-Ho Jo, Physical Review B 101, 174309 (2020).
22. “Picosecond competing dynamics of apparent semiconducting-metallic phase transition in the topological insulator Bi2Se3”, Sangwan Sim, Doeon Lee, Jekwan Lee, Myungjun Cha, Soonyoung Cha, Wonhyeok Heo, Sungjun Cho, Wooyoung Shim, Kyusang Lee, Jinkyoung Yoo, Rohit Prasankumar, Hyunyong Choi, and Moon-Ho Jo, ACS Photonics 7, 759-764 (2020).
21. “Sub-band-gap photoresponse caused by hot electron injection in Au nanorod decorated van der Waals semiconductor monolayers”, Juho Kim, Gangtae Jin, Min Yeong Park, Soonyoung Cha, Yoon-Jong Moon, and Moon-Ho Jo, Journal of the Korean Physical Society 77, 127-132 (2020).
20. “Light polarization-controlled conversion of ultrafast coherent-incoherent exciton dynamics in few-layer ReS2”, Sangwan Sim, Doeon Lee, Jekwan Lee, Hyemin Bae, Minji Noh, Soonyoung Cha, Moon-Ho Jo, Kyusang Lee, and Hyunyong Choi, Nano Letters 19, 7464-7469 (2019).
19. “Generation, transport and detection of valley-locked spin photocurrent in WSe2-graphene-Bi2Se3 heterostructures”, Soonyoung Cha†, Minji Noh†, Je-Hyun Kim, Jangyup Son, Hyemin Bae, Doeon Lee, Hoil Kim, Jekwan Lee, Hoseung Shin, Sangwan Sim, Seunghoon Yang, Sooun Lee, Wooyoung Shim, Chul-Ho Lee, Moon-Ho Jo, Jun Sung Kim, Dohun Kim, and Hyunyong Choi, Nature Nanotechnology 13, 910-914 (2018).
18. “Writing monolithic integrated circuits on a two-dimensional semiconductor with a scanning light probe”, Seung-Young Seo, Jaehyun Park, Jewook Park, Kyung Song, Soonyoung Cha, Sangwan Sim, Si-Young Choi, Han Woong Yeom, Hyunyong Choi, and Moon-Ho Jo, Nature electronics 1, 512-517 (2018).
17. “Ultrafast quantum beats of anisotropic excitons in atomically thin ReS2”, Sangwan Sim, Doeon Lee, Taeyoung Kim, Soonyoung Cha, Ji Ho Sung, Sungjun Cho, Wooyoung Shim, Moon-Ho Jo, and Hyunyong Choi, Nature Communications 9, 351 (2018).
16. “Role of Spin Hall effect in the topological side surface conduction”, Jekwan Lee, Sangwan Sim, Soohyun Park, Chihun In, Seungwan Cho, Seungmin Lee, Soonyoung Cha, Sooun Lee, Hoil Kim, Jehyun Kim, Wooyoung Shim, Jun Sung Kim, Dohun Kim, and Hyunyong Choi, ACS Photonics 5, 3347-3352 (2018).
15. “Ultrafast hot-carrier photovoltaics of type-I monolayer heterojunctions in the broad spectral ranges”, Ji Ho Sung†, Soonyoung Cha†, Hoseok Heo, Sangwan Sim, Juho Kim, Hyunyong Choi, and Moon-Ho Jo, ACS Photonics 4, 429-434 (2017).
14. “Highly-sensitive, gate-tunable room temperature infrared photodetection based on graphene-Bi2Se3 heterostructure”, Jaeseok Kim, Sungjoon Park, Houk Jang, Nikesh Koirala, Jae-Bok Lee, Un Jeong Kim, Hong-Seok Lee, Young-Geun Roh, Hyangsook Lee, Sangwan Sim, Soonyoung Cha, Chihun In, Jun Park, Jekwan Lee, Minji Noh, Jisoo Moon, Maryam Salehi, Jiho Sung, Sang-Soo Chee, Moon-Ho Ham, Moon-Ho Jo, Seongshik Oh, Jong-Hyun Ahn, Sung Woo Hwang, Dohun Kim, and Hyunyong Choi, ACS Photonics 4, 482-488 (2017).
13. “1s-intraexcitonic dynamics in monolayer MoS2 probed by ultrafast mid-infrared spectroscopy”, Soonyoung Cha†, Ji Ho Sung†, Sangwan Sim, Jun Park, Hoseok Heo, Moon-Ho Jo, and Hyunyong Choi, Nature Communications 7, 10768 (2016).
12. “Unusually effieicnt photocurrent extraction in monolayer van der Waals heterostructure by tunneling through discretized barriers”, Woo Jong Yu, Quoc An Vu, Hyemin Oh, Hong Gi Nam, Hailong Zhou, Soonyoung Cha, Joo-Youn Kim, Alexandra Carvalho, Munseok Jeong, Hyunyong Choi, A.H. Castro Neto, Young Hee Lee, and Xiangfeng Duan, Nature Communications 7, 13278 (2016).
11. “Selectively tunable optical Stark effect of anisotropic excitons in atomically thin ReS2”, Sangwan Sim, Doeon Lee, Minji Noh, Soonyoung Cha, Chan Ho Soh, Ji Ho Sung, Moon-Ho Jo, and Hyunyong Choi, Nature Communications 7, 13569 (2016).
10. “Solvent-assisted gel printing for micropatterning thin organic–inorganic hybrid perovskite films”, Beomjin Jeong, Ihn Hwang, Sung Hwan Cho, Eui Hyuk Kim, Soonyoung Cha, Jinseong Lee, Han Sol Kang, Suk Man Cho, Hyunyong Choi, and Cheolmin Park, ACS Nano 10, 9026-9035 (2016).
9. “Composition control of plasmon-phonon interaction using topological quantum-phase transition in photoexcited (Bi1-xInx)2Se3”, Sangwan Sim, Jun Park, Nikesh Koirala, Seungmin Lee, Matthew Brahlek, Jisoo Moon, Maryam Salehi, Jaeseok Kim, Soonyoung Cha, Ji Ho Sung, Moon-Ho Jo, Seongshik Oh, and Hyunyong Choi, ACS Photonics 3, 1426-1431 (2016).
8. “Interlayer orientation dependent light absorption and emission in monolayer semiconductor stacks”, Hoseok Heo, Ji Ho Sung, Soonyoung Cha, Bo-Gyu Jang, Gangtae Jin, Donghun Lee, Ji-Hoon Ahn, Myoung-Jae Lee, Ji Hoon Shim, Hyunyong Choi, and Moon-Ho Jo, Nature Communications 6, 7372 (2015).
7. “Flexible transition metal dichalcogenide nanosheets for band selective photo-detection”, Dhinesh Babu Velusamy, Richard Hahnkee Kim, Soonyoung Cha, June Huh, Reza Khazaeinezhad, Sahar Hosseinzadeh Kassani, Giyoung Song, Suk Man Cho, Sung Hwan Cho, Ihn Hwang, Jinseong Lee, Kyunghwan Oh, Hyunyoug Choi, and Cheolmin Park, Nature Communications 6, 8063 (2015).
6. “Ultra-high modulation depth exceeding 2,400 % in the optically-controlled topological surface plasmons”, Sangwan Sim, Houk Jang, Nikesh Koirala, Matthew Brahlek, Jisoo Moon, Ji Ho Sung, Jun Park, Soonyoung Cha, Seongshik Oh, Moon-Ho Jo, Jong-Hyun Ahn, and Hyunyong Choi, Nature Communications 6, 8814 (2015).
5. “Rotation-misfit-free heteroepitaxial stacking and stitching growth of hexagonal transition-metal dichalcogenide monolayers by nucleation kinetics controls”, Hoseok Heo, Ji Ho Sung, Gangtae Jin, Ji-Hoon Ahn, Myoung Jae Lee, Soonyoung Cha, Hyunyong Choi, and Moon-Ho Jo, Advanced Materials 27 3803-3810 (2015).
4. “Tunable Fano quantum-interference dynamics using topological phase transition in (Bi1-xInx)2Se3”, Sangwan Sim, Nikesh Koirala, Matthew Brahlek, Ji Ho Sung, Jun Park, Soonyoung Cha, Moon-Ho Jo, Seongshik Oh, and Hyunyong Choi, Physical Review B 91, 235438 (2015).
3. “Ultrafast terahertz dynamics of hot Dirac-electron surface scattering in the topological insulator Bi2Se3”, Sangwan Sim, Matthew Brahlek, Nikesh Koirala, Soonyoung Cha, Seongshik Oh, and Hyunyong Choi, Physical Review B 89, 165137 (2014).
2. “Ultrafast spin-resolved spectroscopy reveals dominant exciton dynamics in conducting polymer polyaniline”, Soonyoung Cha, Yoochan Hong, Jaemoon Yang, Inhee Maeng, Seung Jae Oh, Kiyoung Jeong, Jin-Suck Suh, Seungjoo Haam, Yong-Min Huh, and Hyunyong Choi, Journal of Physical Chemistry C, 117, 20371-20375 (2013).
1. “Ultrafast zero balance of the oscillator-strength sum rule in graphene”, Jaeseok Kim, Seong Chu Lim, Seung Jin Chae, Inhee Maeng, Younghwan Choi, Soonyoung Cha, Young Hee Lee, and Hyunyong Choi, Scientific Reports 3, 2663 (2013).
†: equal contributors
First-authored publications are marked in red