Publications
Journals
39. Heavy electron doping in monolayer MoS2 on a freestanding N-face GaN substrate, Kaipeng Rong, Keisuke Shinokita, Peishan Yu, Takahiko Endo, Tsutomu Araki, Yasumitsu Miyata, Kazunari Matsuda, and Shinichiro Mouri, Applied Physics Express (2024) [Impact Factor] https://doi.org/10.35848/1882-0786/ad8c9b
38. Synthesis of Arrayed Tungsten Disulfide Nanotubes, Abdul Ahad, Yohei Yomogida, Md. Ashiqur Rahman, Akane Ihara, Yasumitsu Miyata, Yasushi Hirose, Keisuke Shinokita, Kazunari Matsuda, Zheng Liu, and Kazuhiro Yanagi, Nano Letters (2024) [Impact Factor] https://doi.org/10.1021/acs.nanolett.4c03895
37. Quantum coherence and interference of a single moiré exciton in nano-fabricated twisted monolayer semiconductor heterobilayers, H. Wang, H. Kim, D. Dong, K. Shinokita, K. Watanabe, T. Taniguchi, and K. Matsuda, Nature Communications 15, 4905 (2024) [Impact Factor] https://doi.org/10.1038/s41467-024-48623-4 (Press release)
36. 180 °-twisted bilayer ReSe2 as an artificial noncentrosymmetric semiconductor, S. Akatsuka, M. Sakano, T. Yamamoto, T. Nomoto, R. Arita, R. Murata, T. Sasagawa, K. Watanabe, T. Taniguchi, N. Mitsuishi, M. Kitamura, K. Horiba, K. Sugawara, S. Souma, T. Sato, H. Kumigashira, K. Shinokita, H. Wang, K. Matsuda, S. Masubuchi, T. Machida, and K. Ishizaka, Physical Review Research 6, L022048 (2024) [Impact Factor] https://doi.org/10.1103/PhysRevResearch.6.L022048
35. Symmetry Engineering in Twisted Bilayer WTe2, Yijin Zhang, Keisuke Kamiya, Takato Yamamoto, Masato Sakano, Xiaohan Yang, Satoru Masubuchi, Shota Okazaki, Keisuke Shinokita, Tongmin Chen, Kohei Aso, Yukiko Yamada-Takamura, Yoshifumi Oshima, Kenji Watanabe, Takashi Taniguchi, Kazunari Matsuda, Takao Sasagawa, Kyoko Ishizaka, and Tomoki Machida, Nano Letters 23, 9280 (2023) [Impact Factor] https://doi.org/10.1021/acs.nanolett.3c02327
34. Dynamics of Moiré Trion and Its Valley Polarization in a Microfabricated WSe2/MoSe2 Heterobilayer, Heejun Kim, Duanfei Dong, Yuki Okamura, Keisuke Shinokita, Kenji Watanabe, Takashi Taniguchi, and Kazunari Matsuda, ACS Nano 17, 13715 (2023). [Impact Factor] https://doi.org/10.1021/acsnano.3c02952
33. Shift Current Photovoltaics based on a Noncentrosymmetric Phase in in-plane Ferroelectric SnS, Yih-Ren Chang, Ryo Nanae, Satsuki Kitamura, Tomonori Nishimura, Haonan Wang, Yubei Xiang, Keisuke Shinokita, Kazunari Matsuda, Takashi Taniguchi, Kenji Watanabe, Kosuke Nagashio, Advanced Materials 35, 2301172 (2023). [Impact Factor] https://doi.org/10.1002/adma.202301172
32. Dynamics of Moiré Exciton in a Twisted MoSe2/WSe2 Heterobilayer, Heejun Kim, Kumpei Aino, Keisuke Shinokita, Wenjin Zhang, Kenji Watanabe, Takashi Taniguchi, Kazunari Matsuda, Advanced Optical Materials 11, 2300146 (2023). [Impact Factor] https://doi.org/10.1002/adom.202300146
31. Valley Relaxation of the Moiré Excitons in a WSe2/MoSe2 Heterobilayer, Keiuske Shinokita, Kenji Watanabe, Takashi Taniguchi, and Kazunari Matsuda, ACS Nano 16, 16862 (2022). [Impact Factor] https://doi.org/10.1021/acsnano.2c06813
30. Continuous color-tunable light-emitting devices based on compositionally graded monolayer transition metal dichalcogenide alloys, Jiang Pu, Hao Ou, Tomoyuki Yamada, Naoki Wada, Hibiki Naito, Hiroto Ogura, Takahiko Endo, Zheng Liu, Toshifumi Irisawa, Kazuhiro Yanagi, Yusuke Nakanishi, Yanlin Gao, Mina Maruyama, Susumu Okada, Keisuke Shinokita, Kazunari Matsuda, Yasumitsu Miyata, Taishi Takenobu, Advanced Materials 34, 2203250 (2022). [Impact Factor] https://doi.org/10.1002/adma.202203250
29. Magnon-Coupled Intralayer Moiré Trion in Monolayer Semiconductor–Antiferromagnet Heterostructures, Yan Zhang, Heejun Kim, Wenjin Zhang, Kenji Watanabe, Takashi Taniguchi, Yanlin Gao, Mina Maruyama, Susumu Okada, Keisuke Shinokita, Kazunari Matsuda, Advanced Materials, 34, 2200301(2022). [Impact Factor] https://doi.org/10.1002/adma.202200301
28. Radiative lifetime and dynamics of trions in few-layered ReS2, Xiaofan Wang, Keisuke Shinokita, and Kazunari Matsuda, Applied Physics Letters 119, 113103 (2021) [Impact Factor] https://doi.org/10.1063/5.0059198
27. Intrinsic Electronic Transport Properties and Carrier Densities in PtS2 and SnSe2: Exploration of n+-Source for 2D Tunnel FETs, Yuichiro Sato, Tomonori Nishimura, Dong Duanfei, Keiji Ueno, Keisuke Shinokita, Kazunari Matsuda, Kosuke Nagashio, Advanced Electronic Materials 7, 2100292 (2021) [Impact Factor] https://doi.org/10.1002/aelm.202100292
26. Resonant Coupling of a Moiré Exciton to a Phonon in a WSe2/MoSe2 Heterobilayer, Keisuke Shinokita, Yuhei Miyauchi, Kenji Watanabe, Takashi Taniguchi, and Kazunari Matsuda, Nano Letters 21, 5938 (2021) [Impact Factor] https://doi.org/10.1021/acs.nanolett.1c00733, https://arxiv.org/abs/2012.08720
25. Ultralarge Photoluminescence Enhancement of Monolayer Molybdenum Disulfide by Spontaneous Superacid Nanolayer Formation, Yuki Yamada, Yan Zhang, Hidekazu Ikeno, Keisuke Shinokita, Takeshi Yoshimura, Atsushi Ashida, Norifumi Fujimura, Kazunari Matsuda, and Daisuke Kiriya, ACS Appl. Mater. Interfaces 13, 25280 (2021) [Impact Factor] https://doi.org/10.1021/acsami.1c04980
24. Controllable Magnetic Proximity Effect and Charge Transfer in 2D Semiconductor and Double‐Layered Perovskite Manganese Oxide van der Waals Heterostructure, Yan Zhang, Keisuke Shinokita, Kenji Watanabe, Takashi Taniguchi, Masato Goto, Daisuke Kan, Yuichi Shimakawa, Yutaka Moritomo, Taishi Nishihara, Yuhei Miyauchi, Kazunari Matsuda, Advanced Materials 32, 2003501 (2020). [Impact Factor] https://doi.org/10.1002/adma.202003501
23. Magnetic Field Induced Inter‐Valley Trion Dynamics in Monolayer 2D Semiconductor, Yan Zhang, Keisuke Shinokita, Kenji Watanabe, Takashi Taniguchi, Yuhei Miyauchi, Kazunari Matsuda, Advanced Functional Materials 31, 2006064 (2020). [Impact Factor] https://doi.org/10.1002/adfm.202006064
22. Exciton diffusion in hBN-encapsulated monolayer MoSe2, Takato Hotta, Shohei Higuchi, Akihiro Ueda, Keisuke Shinokita, Yuhei Miyauchi, Kazunari Matsuda, Keiji Ueno, Takashi Taniguchi, Kenji Watanabe, and Ryo Kitaura, Physical Review B 102, 115424 (2020). [Impact Factor] https://doi.org/10.1103/PhysRevB.102.115424
21. Photo-activation of Strong Photoluminescence in Superacid-treated Monolayer Molybdenum Disulfide, Yuki Yamada, Keisuke Shinokita, Yasuo Okajima, Sakura N Takeda, Yuji Matsushita, Kuniharu Takei, Takeshi Yoshimura, Atsushi Ashida, Norifumi Fujimura, Kazunari Matsuda, and Daisuke Kiriya, ACS Appl. Mater. Interfaces 12, 36496 (2020). [Impact Factor] https://doi.org/10.1021/acsami.0c09084
20. Bright and highly valley polarized trions in chemically doped monolayer MoS2, Wenjin Zhang, Kenya Tanaka, Yusuke Hasegawa, Keisuke Shinokita, Kazunari MATSUDA and Yuhei MIYAUCHI, Applied Physics Express 13, 035002 (2020). [Impact Factor] https://doi.org/10.35848/1882-0786/ab7485
19. Phonon-mediated intervalley relaxation of positive trions in monolayer WSe2, Keisuke Shinokita, Xiaofan Wang, Yuhei Miyauchi, Kenji Watanabe, Takashi Taniguchi, Satoru Konabe, and Kazunari Matsuda, Physical Review B 100, 161304(R) (2019). [Impact Factor] https://doi.org/10.1103/PhysRevB.100.161304
18. Experimental Evidence of the Anisotropic and Stable Charged Excitons (Trions) in Atomically Thin 2D ReS2, Xiaofan Wang, Keisuke Shinokita, Yuhei Miyauchi, Nguyen Thanh Cuong, Susumu Okada, and Kazunari Matsuda, Advanced Functional Materials 29, 1905961 (2019). [Impact Factor] https://doi.org/10.1002/adfm.201905961
17. Vapor phase selective growth of two-dimensional perovskite/WS2 heterostructures for optoelectronic applications, Ufuk Erkılıç, Pablo Solís-Fernández, Hyun Goo Ji, Keisuke Shinokita, Yung-Chang Lin, Mina Maruyama, Kazu Suenaga, Susumu Okada, Kazunari Matsuda, and Hiroki Ago, ACS Applied Materials & Interfaces 11, 40503 (2019). [Impact Factor] https://doi.org/10.1021/acsami.9b13904
16. Ultrafast dynamics of bright and dark positive trions for valley polarization in monolayer WSe2, Keisuke Shinokita, Xiaofan Wang, Yuhei Miyauchi, Kenji Watanabe, Takashi Taniguchi, Satoru Konabe, and Kazunari Matsuda, Physical Review B 99, 245307 (2019). [Impact Factor] https://doi.org/10.1103/PhysRevB.99.245307
15. Continuous Control and Enhancement of Excitonic Valley Polarization in Monolayer WSe2 by Electrostatic Doping, Keisuke Shinokita, Xiaofan Wang, Yuhei Miyauchi, Kenji Watanabe, Takashi Taniguchi, and Kazunari Matsuda, Advanced Functional Materials 29, 1900260 (2019). [Impact Factor] https://doi.org/10.1002/adfm.201900260
14. Planar Perovskite Solar Cells with High Efficiency and Fill Factor Obtained Using Two-Steps Growth Process, Fengjiu Yang, Jiewei Liu, Xiaofan Wang, Kenya Tanaka, Keisuke Shinokita, Yuhei Miyauchi, Atsushi Wakamiya, and Kazunari Matsuda, ACS Applied Materials & Interfaces 11, 15680 (2019). [Impact Factor] https://doi.org/10.1021/acsami.9b02948
13. Direct and Indirect Exciton Dynamics in Few‐Layered ReS2 Revealed by Photoluminescence and Pump‐Probe Spectroscopy, Xiaofan Wang, Keisuke Shinokita, Hong En Lim, Nur Baizura Mohamed, Yuhei Miyauchi, Nguyen Thanh Cuong, Susumu Okada, and Kazunari Matsuda, Advanced Functional Materials 29, 1806169 (2018). [Impact Factor] https://doi.org/10.1002/adfm.201806169
12. Photoluminescence quantum yields for atomically thin-layered ReS2: Identification of indirect-bandgap semiconductors, Nur Baizura Mohamed, Keisuke Shinokita, Xiaofan Wang, Hong En Lim, Dezhi Tan, Yuhei Miyauchi, and Kazunari Matsuda, Applied Physics Letters 113, 121112 (2018). [Impact Factor] https://doi.org/10.1063/1.5037116
11. High Bending Durability of Efficient Flexible Perovskite Solar Cells Using Metal Oxide Electron Transport Layer, Fengjiu Yang, Jiewei Liu, Hong En Lim, Yasuhisa Ishikura, Keisuke Shinokita, Yuhei Miyauchi, Atsushi Wakamiya, Yasujiro Murata, and Kazunari Matsuda, The Journal of Physical Chemistry C 122, 17088 (2018). [Impact Factor] https://doi.org/10.1021/acs.jpcc.8b05008
10. Efficient photocarrier transfer and effective photoluminescence enhancement in Type I monolayer MoTe2/WSe2 heterostructure, Takao Yamaoka, Hong En Lim, Sandhaya Koirala, Keisuke Shinokita, Mina Maruyama, Susumu Okada, Yuhei Miyauchi, and Kazunari Matsuda, Advanced Functional Materials 28, 1801021 (2018). [Impact Factor] https://doi.org/10.1002/adfm.201801021
9. Carrier transport and photoresponse in GeSe/MoS2 heterojunction p-n diodes, D. Tan, X. Wang, W. Zhang, H. E. Lim, K. Shinokita, Y. Miyauchi, M. Maruyama, S. Okada, and K. Matsuda, Small 14, 1704559 (2018). [Impact Factor] https://doi.org/10.1002/smll.201704559
8. Roles of Polymer Layer in Enhanced Photovoltaic Performance of Perovskite Solar Cells via Interface Engineering, Fengjiu Yang, Hong En Lim, Feijiu Wang, Masashi Ozaki, Ai Shimazaki, Jiewei Liu, Nur Baizura Mohamed, Keisuke Shinokita, Yuhei Miyauchi, Atsushi Wakamiya, Yasujiro Murata, Kazunari Matsuda, Advanced Materials Interfaces 131, 1701256 (2017). [Impact Factor] https://doi.org/10.1002/admi.201701256
7. Long radiative lifetimes of excitons in monolayer transition-metal dichalcogenides MX2 (M=Mo, W; X=S, Se), Nur Baizura Mohamed, Hong En Lim, Feijiu Wang, Sandhaya Koirala, Shinichiro Mouri, Keisuke Shinokita, Yuhei Miyauchi and Kazunari Matsuda, Applied Physics Express 11, 015201 (2017). [Impact Factor] https://doi.org/10.7567/APEX.11.015201
6. Hydrogen bond and lifetime dynamics in diluted alcohols, Evgeniia Salamatova, Ana V. Cunha, Keisuke Shinokita, Thomas la Cour Jansen and Maxim Pshenischnikov, Physical Chemistry Chemical Physics 19, 27960 (2017). [Impact Factor] https://doi.org/10.1039/C7CP03222F
5. Strong Amplification of Coherent Acoustic Phonons by Intraminiband Currents in a Semiconductor Superlattice, Keisuke Shinokita, Klaus Reimann, Michael Woerner, Thomas Elsaesser, Rudolf Hey, and Christos Flytzanis, Physical Review Letters 116, 075504 (2016). [Impact Factor] https://doi.org/10.1103/PhysRevLett.116.075504
4. Hydrogen bond dynamics in bulk alcohols, Keisuke Shinokita, Ana V. Cunha, Thomas L. C. Jansen and Maxim S. Pshenichnikov, The Journal of Chemical Physics 142, 212450 (2015). [Impact Factor] https://doi.org/10.1063/1.4921574
3. Terahertz-Induced Optical Emission of Photoexcited Undoped GaAs Quantum Wells, K. Shinokita, H. Hirori, K. Tanaka, T. Mochizuki, C. Kim, H. Akiyama, L. N. Pfeiffer and K. W. West, Physical Review Letters 111, 067401 (2013). [Impact Factor] https://doi.org/10.1103/PhysRevLett.111.067401
2. Extraordinary carrier multiplication gated by a picosecond electric field pulse, H. Hirori, K. Shinokita, M. Shirai, S. Tani, Y. Kadoya, and K. Tanaka, Nature Communications 2, 594 (2011). [Impact Factor] https://doi.org/10.1038/ncomms1598
1. Dynamical Franz-Keldysh effect in GaAs/AlGaAs multiple quantum wells induced by single-cycle terahertz pulses, K. Shinokita, H. Hirori, M. Nagai, N. Satoh, Y. Kadoya, and K. Tanaka, Applied Physics Letters 97, 211902 (2010). [Impact Factor] https://doi.org//10.1063/1.3518483
Proceedings
C13. Dynamics of Moiré Exciton in MoSe2-WSe2 Heterstrosucture, Heejun Kim, Keisuke Shinokita, Wenjin Zhang, Kenji Watanabe, Takashi Taniguchi, and Kazunari Matsuda, JSAP-OSA Joint Symposia 2021, 10a_N305_9. https://opg.optica.org/abstract.cfm?uri=JSAP-2021-10a_N305_9
C12. Moiré exciton-phonon resonance in WSe2/MoSe2 heterobilayer, Keisuke Shinokita, Yuhei Miyauchi, Kenji Watanabe, Takashi Taniguchi, and Kazunari Matsuda, JSAP-OSA Joint Symposia 2021, 10a_N305_10. https://opg.optica.org/abstract.cfm?uri=JSAP-2021-10a_N305_10
C11. Doping Control of Valley Depolarization of Neutral Exciton in Monolayer WSe2, Keisuke Shinokita, Xiaofan Wang, Yuhei Miyauchi, and Kazunari Matsuda, JSAP-OSA Joint Symposia 2018, 20p-221B-6. https://www.osapublishing.org/abstract.cfm?uri=JSAP-2018-20p_221B_6
C10. Optical properties of vertically stacked MoTe2/WSe2 heterostructure, Hong En Lim, Takao Yamaoka, Sandhaya Koirala, Xiaofan Wang, Keisuke Shinokita, Mina Maruyama, Susumu Okada, Yuhei Miyauchi, and Kazunari Matsuda, JSAP-OSA Joint Symposia 2018, 20p-221B-11. https://www.osapublishing.org/abstract.cfm?uri=jsap-2018-20p_221B_11
C9. Coherent Acoustic Phonon Amplification in a Strongly Coupled Semiconductor Superlattice under Intraminiband Transport, Keisuke Shinokita, Klaus Reimann, Michael Woerner, Thomas Elsaesser, Rudolf Hey, and Christos Flytzanis, International Conference on Ultrafast Phenomena 2016, UW4A. 1. https://doi.org/10.1364/UP.2016.UW4A.1
C8. Amplification of Coherent Sub-Terahertz Phonons by Interaction with Drift Currents in a Semiconductor Superlattice, Keisuke Shinokita, Klaus Reimann, Michael Woerner, Thomas Elsaesser, Rudolf Hey, and Christos Flytzanis, Conference on Lasers and Electro-Optics, OSA Technical Digest (online) (Optical Society of America, 2016), paper FW1N.7. https://doi.org/10.1364/CLEO_QELS.2016.FW1N.7
C7. Hydrogen Bond Dynamics in Alcohols Studied by 2D IR Spectroscopy, Keisuke Shinokita, Ana Cunha, Thomas Jansen, and Maxim S. Pshenichnikov, 19th International Conference on Ultrafast Phenomena, OSA Technical Digest (online) (Optical Society of America, 2014), paper 08.Tue.P2.27. https://doi.org/10.1364/UP.2014.08.Tue.P2.27
C6. Photoluminescence Flash Induced by Intense Single-Cycle Terahertz Pulses in Undoped GaAs Quantum Wells, K. Shinokita, H. Hirori, K. Tanaka, T. Mochizuki, C. Kim, H. Akiyama, L. N. Pfeiffer, and K. W. West, 2013 Conference on Lasers and Electro-Optics Pacific Rim, (Optical Society of America, 2013), paper MC2_2. https://www.osapublishing.org/abstract.cfm?uri=CLEOPR-2013-MC2_2
C5. High-power THz pulse generation and nonlinear THz spectroscopy, K. Shinokita, H. Hirori, K. Tanaka, T. Mochizuki, C. Kim, H. Akiyama, L. N. Pfeiffer, K. W. West, Proc. SPIE 8604, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XII, 86040B (March 18, 2013). https://doi.org/10.1117/12.2008309
C4. Extraordinary carrier multiplication in GaAs MQWs induced by intense terahertz pulse, H. Hirori, K. Shinokita, M. Shirai, S. Tani, Y. Kadoya, K. Tanaka, Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on, Houston, TX, 2011, pp. 1-2. https://doi.org/10.1109/irmmw-THz.2011.6104913
C3. Highly Efficient Carrier Multiplication and Bright Exciton Luminescence under Intense Terahertz Pulse, H. Hirori, K. Shinokita, M. Shirai, S. Tani, Y. Kadoya, and K. Tanaka, CLEO:2011 - Laser Applications to Photonic Applications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper PDPC8. https://doi.org/10.1364/CLEO_AT.2011.PDPC8
C2. Dynamical Franz-Keldysh effect in GaAs induced by monocycle terahertz pulse, K. Shinokita, H. Hirori, M. Nagai, N. Sato, Y. Kadoya, K. Tanaka, 35th International Conference on Infrared, Millimeter, and Terahertz Waves, Rome, 2010, pp. 1-1. https://doi.org/10.1109/ICIMW.2010.5612804
C1. Construction of compact MRI magnet with superconducting shield, K. Sinokita, R. Toda, Y. Sasaki, Journal of Physics: Conference Series 150 (1), 012041, 2009. https://doi.org/10.1088/1742-6596/150/1/012041
Reviews
R2. "2次元半導体とそのモアレ構造における光科学"、篠北啓介、松田一成、固体物理、58, 673-688 (2023) [Link]
R1. "ねじれて積層した2次元半導体のモアレ構造における新規な励起子光物性"、篠北啓介、松田一成、応用物理、92, 524-529 (2023) https://doi.org/10.11470/oubutsu.92.9_524
Novel exciton optical physics in moiré superlattice structure of twisted stacked two-dimensional semiconductors, Keisuke Shinokita, Kazunari Matsuda, JSAP Rev. 2023, 230214, https://doi.org/10.11470/jsaprev.230214
Books
B1. "単層遷移金属ダイカルコゲナイドの光機能性の開拓"、篠北啓介、松田一成、ポストグラフェン材料の創製と用途開発最前線～二次元ナノシートの物性評価、構造解析、合成、成膜プロセス技術、応用展開～ 柚原淳司監修 (株式会社エヌ・ティー・エス 2020) pp. 319-328. http://www.nts-book.co.jp/item/detail/summary/nano/20200400_42.html