Publications

  1. Tianzhuo Zhan, Keita Sahara, Haruki Takeuchi, Ryo Yokogawa, Kaito Oda, Zhicheng Jin, Shikang Deng, Motohiro Tomita, Yen-Ju Wu, Yibin Xu, Takeo Matsuki, Haidong Wang, Mengjie Song, Sujun Guan, Atsushi Ogura, and Takanobu Watanabe, “Modification and Characterization of Interfacial Bonding for Thermal Management of Ruthenium Interconnects in Next-Generation Very-Large-Scale Integration Circuits,” ACS Applied Materials and Interfaces Vol.14, pp.7392-7404 (2022). doi/10.1021/acsami.1c20366
  2. Md Mehdee Hasan Mahfuz, Motohiro Tomita, Kazuaki Katayama, Tsubasa Kashizaki, Katsuk Abe, Takumi Hoshina, Takeo Matsuki, Takanobu Watanabe, “Performance demonstration of cavity-free planar multi-stage bileg and unileg silicon-nanowire thermoelectric generators,”  Japanese Journal of Applied Physics, in press.
  3. Tsubasa Kashizaki, Motohiro Tomita, Kazuaki Katayama, Takumi Hoshina, Takeo Matsuki,  Sylvia Chung, Takanobu Watanabe, “Effect of metal heat guide structure on the performance of planar Si thermoelectric generator embedded in SiO2 inter-layer dielectric,” Japanese Journal of Applied Physics, in press.
  4. (Featured Article) Sylvia Yuk Yee Chung, Motohiro Tomita, Ryo Yokogawa, Atsushi Ogura, Takanobu Watanabe, “Atomic Mass Dependency of a Localized Phonon Mode in SiGe Alloys,” AIP Advances Vol.11, 115225 (2021). doi.org/10.1063/5.0071699
  5. (Proceedings, Best Presenter Award) Hiroshi Inokawa, Yuto Goi, Yoshiaki Yorigami, Kyohei Shirotori, Hiroaki Satoh, Motohiro Tomita, Takeo Matsuki, Hiroya Ikeda, Takanobu Watanabe, “Substrate Bias Effect on SOI-based Thermoelectric Power Generator,” International Conference on QiR (Quality in Research), (2021).
  6. (Featured Article, Front Cover Paper) Sylvia Yuk Yee Chung, Motohiro Tomita, Junya Takizawa, Ryo Yokogawa, Atsushi Ogura, Haidong Wang and Takanobu Watanabe, “Dependency of a localized phonon mode intensity on compositional cluster size in SiGe alloys, ” AIP Advances Vol. 11, 075017 (2021). doi.org/10.1063/5.0055307
  7. Ryohei Yamaguchi, Taiki Ishii, Masamichi Matsumoto, Angana Borah, Naoki Tanaka, Kaito Oda, Motohiro Tomita, Takanobu Watanabe, and Tsuyohiko Fujigaya “Thermal Deposition Method for p–n Patterning of Carbon Nanotube Sheets for Planar-type Thermoelectric Generator,” Journal of Materials Chemistry A, Vol.9, pp.12188-12195, (2021). doi.org/10.1039/D1TA02206G
  8. Tsuyohiko Fujigaya, Masamichi Matsumoto, Keisuke Shima, Ryohei Yamaguchi, Masakazu Mukaida, Motohiro Tomita, Takao Ishida, Takanobu Watanabe, “Control of Anisotropic Conduction of Carbon Nanotube Sheets and Their Use as Planar-type Thermoelectric Conversion Materials,” Science and Technology of Advanced Materials (STAM), Vol.22, pp.272-279, (2021). doi.org/10.1080/14686996.2021.1902243
  9. Taichi Nozawa, Keita Nakamura, Ryosuke Katsuyama, Syunki Kuwajima, Ziyan Li, Akira Nomizu, Riku Okamoto, Toshitatsu Munakata and Takanobu Watanabe, “The WiFly: Flapping-wing Small Unmanned Aerial Vehicle with Centre-of-Gravity Shift Mechanism,”  Journal of Robotics and Mechatronics, Vol.33, No.2, pp.205-215 (2021). doi.org/10.20965/jrm.2021.p0205
  10. Md Mehdee Hasan Mahfuz, Motohiro Tomita, Shuhei Hirao, Kazuaki Katayama, Kaito Oda, Takashi Matsukawa, Takeo Matsuki, Takanobu Watanabe, “Designing bileg silicon-nanowire thermoelectric generator with cavity-free structure,” Japanese Journal of Applied Physics, Vol. 60, SBBF07 (2021). doi.org/10.35848/1347-4065/abd9d0
  11. Jianbo Liang,  Yuji Nakamura,  Tianzhuo Zhan, Yutaka Ohno, Yasuo Shimizu, Kazu Katayama, Takanobu Watanabe, Hideto Yoshida, Yasuyoshi Nagai, Hongxing Wang, Makoto Kasu, Naoteru Shigekawa, “Fabrication of high-quality GaAs/diamond heterointerface for thermal management applications,” Diamond and Related Materials, Vol. 111, 108207 (2021). doi.org/10.1016/j.diamond.2020.108207
  12. Sylvia Yuk Yee Chung, Motohiro Tomita, Ryo Yokogawa, Atsushi Ogura, and Takanobu Watanabe, “Observation of an Unidentified Phonon Peak in SiGe Alloys and Superlattices Using Molecular Dynamics,” ECS Transactions, Vol. 98, 533-546 (2020). doi.org/10.1149/09805.0533ecst
  1. Khotimatul Fauziah, Yuhei Suzuki, Takuto Nogita, Yoshinari Kamakura, Takanobu Watanabe, Faiz Salleh, and Hiroya Ikeda, “Effect of phonon-boundary scattering on phonon-drag factor in Seebeck coefficient of Si wire,” AIP Advances, Vol. 10, 075015 (2020). doi.org/10.1063/5.0016043
  2. Tianzhuo Zhan, Kaito Oda,  Shuaizhe Ma, Motohiro Tomita, Zhicheng Jin, Hiroki Takezawa, Kohei Mesaki, YenJu Wu, Yibin Xu, Takashi Matsukawa, Takeo Matsuki, Takanobu Watanabe, “Effect of Thermal Boundary Resistance of Metal/Dielectric Interface on Temperature Increase of Interconnects in Deeply Scaled VLSI, ” ACS Applied Materials & Interfaces, Vol 12, pp.22347−22356 (2020), doi:10.1021/acsami.0c03010
  3. (Japanese) Rina Sankawa, Takuya Onishi, Kohei Takahashi, Motohiro Tomita, Kotaro Mura, Takahiro Nakamura, Tetsuo Yoshimitsu, Takahiro Imai, Takanobu Watanabe, “Direct Observation of Dielectric Breakdown Path at Silica/Epoxy Interface with a Micro-gap Electrode Device,” IEEJ Transactions on Fundamentals and Materials, Vol. 140, pp.64-69 (2020). doi:10.1541/ieejfms.140.64
  4. Khotimatul Fauziah, Yuhei Suzuki, Yuki Narita, Yoshinari Kamakura, Takanobu Watanabe, Faiz Salleh, Hiroya Ikeda, “Effect of Phonon-Drag Contributed Seebeck Coefficient on Si-Wire Thermopile Voltage Output,” IEICE Transactions on Electronics  E102–C, No.6, pp.475-478 (2019). doi:10.1587/transele.2018FUS0003
  5. Takanobu Watanabe, Motohiro Tomita, Tianzhuo Zhan, Keisuke Shima, Yuya Himeda, Ryo Yamato, Takashi Matsukawa, Takeo Matsuki, “Cavity-Free Micro Thermoelectric Energy Harvester with Si Nanowires,” ECS Transactions 89, pp.95-110 (2019). doi:10.1149/08903.0095ecst
  6. Ryo Yokogawa, Motohiro Tomita, Takanobu Watanabe, and Atsushi Ogura, ” Evaluation of thermal conductivity characteristics in Si nanowire covered with oxide by UV Raman spectroscopy,” Japanese Journal of Applied Physics 58, SDDF04, (2019). doi:10.7567/1347-4065/ab0889
  7. Motohiro Tomita, Masataka Ogasawara, Takuya Terada, and Takanobu Watanabe,
    “Evaluating the Relationship between Phonon and Thermal Properties of Group IV Alloys Using Molecular Dynamics Simulation,” ECS Transactions 86(7), pp.337-345 (2018). doi:10.1149/08607.0337ecst
  8. Ryo Yokogawa, Shuichiro Hashimoto, Kouta Takahashi, Shunsuke Oba, Motohiro Tomita, Masashi Kurosawa, Takanobu Watanabe, and Atsushi Ogura,
    “Evaluation of Laterally Graded Silicon Germanium Wires for Thermoelectric Devices Fabricated by Rapid Melting Growth,” ECS Transactions 86(7), pp.87-93 (2018). doi:10.1149/08607.0087ecst
  9. Motohiro Tomita, Shunsuke Ohba, Yuya Himeda, Ryo Yamato, Keisuke Shima, Takehiro Kumada, Mao Xu, Hiroki Takezawa, Kohei Mesaki, Kazuaki Tsuda, Shuichiro Hashimoto, Tianzhuo Zhan, Hui Zhang, Yoshinari Kamakuri, Yuhei Suzuki, Hiroshi Inokawa, Hiroya Ikeda, Takashi Matsukawa, Takeo Matsuki, Takanobu Watanabe, “Modeling, Simulation, Fabrication and Characterization of a 10 μW/cm2 Class Si-Nanowire Thermoelectric Generator for IoT Applications,” IEEE Transaction on Electron Devices, vol.65, pp.5180-5188 (2018). doi:10.1109/TED.2018.2867845
  10. (Proceedings) Motohiro Tomita, Shunsuke Ohba, Yuya Himeda, Ryo Yamato, Keisuke Shima, Takehiro Kumada, Mao Xu, Hiroki Takezawa, Kohei Mesaki, Kazuaki Tsuda, Shuichiro Hashimoto, Tianzhuo Zhan, Hui Zhang, Yoshinari Kamakuri, Yuhei Suzuki, Hiroshi Inokawa, Hiroya Ikeda, Takashi Matsukawa, Takeo Matsuki, Takanobu Watanabe, “10μW/cm2-Class High Power Density Silicon Thermoelectric Energy Harvester Compatible with CMOS-VLSI Technology,” 2018 Symposium on VLSI Technology,  Digest of Technical  Papers, pp. 93-94, (2018).
  1. Tianzhuo Zhan, Ryo Yamato, Shuichiro Hashimoto, Motohiro Tomita, Shunsuke Oba, Shunsuke, Yuya Himeda, Kohei Mesaki, Hiroki Takezawa, Ryo Yokogawa, Yibin Xu, Takashi Matsukawa, Atsushi Ogura, Yoshinari Kamakura, Takanobu Watanabe, “Miniaturized planar Si-nanowire micro-thermoelectric generator using exuded thermal field for power generation,” Science and Technology of Advanced Materials (STAM), Vol. 19, 443-453, (2018).  doi:10.1080/14686996.2018.1460177.
  2. Hui Zhang, Taiyu Xu, Shuichiro Hashimoto, Takanobu Watanabe, “The Possibility of mW/cm2-class On-Chip Power Generation Using Ultra-Small Si Nanowire based Thermoelectric Generators,” IEEE Transactions on Electron Devices, Vol. 65, pp.2016-2023 (2018). doi:10.1109/TED.2018.2817641
  3. Motohiro Tomita, Masataka Ogasawara, Takuya Terada, and Takanobu Watanabe, “Development of interatomic potential of Ge(1-x-y)SixSny ternary alloy Semiconductors for classical lattice dynamics simulation,” Japanese Journal of Applied Physics, Vol. 57, 04FB04 (2018). doi:10.7567/JJAP.57.04FB04
  4. (Japanese) Fundamental Study on Application of the Nanocomposite to an Electrical Rotating Machine),” IEEJ Transactions on Fundamentals and Materials, Vol. 137, pp.645-651 (2017). doi:10.1541/ieejfms.137.645
  5. (Proceedings) Takuya Onishi, Shuichiro Hashimoto, Motohiro Tomita, Takanobu Watanabe, Kotaro Mura, Toshihiro Tsuda, and Tetsuo Yoshimitsu, “Nano-scale Evaluation of Electrical Tree Initiation in Silica/Epoxy Nano-composite Thin Film,” Conference Proceedings of  International Symposium Electrical Insulating Materials (ISEIM) 2017. doi: 10.23919/ISEIM.2017.8088759
  6. Shuichiro Hashimoto, Ryo Yokogawa, Shunsuke Oba, Shuhei Asada, Taiyu Xu, Motohiro Tomita, Atsushi Ogura, Takashi Matsukawa, Meishoku Masahara, and Takanobu Watanabe, “Enhanced nickelidation rate in silicon nanowires with interfacial lattice disorder,”  Journal of Applied Physics, Vol. 122, 144305 (2017). doi: 10.1063/1.4999195
  7. (Proceedings) Takanobu Watanabe, “Molecular Dynamics of Dipole Layer Formation at High-k/SiO2 Interface,” ECS Transcations, Vol. 80, pp.312-325 (2017). doi: 10.1149/08001.0313ecst
  8. Shuichiro Hashimoto, Shuhei Asada, Taiyu Xu, Shunsuke  Oba, Yuya Himeda, Ryo Yamato, Takashi Matsukawa, Takeo Matsuki, and Takanobu Watanabe, “Anomalous Seebeck Coefficient Observed in Silicon Nanowire Micro Thermoelectric Generator,” Applied Physics Letters, Vol. 111, 023105 (2017). doi:10.1063/1.4993150
  9. Ryo Yokogawa, Shuichiro Hashimoto, Shuhei Asada, Motohiro Tomita, Takanobu Watanabe, and Atsushi Ogura, “Evaluation of controlled strain in silicon nanowire by UV Raman spectroscopy,”  Japanese Journal of Applied Physics, Vol. 56, 06GG10 (2017). doi:10.7567/JJAP.56.06GG10
  10. Jiayang Fei, Ryota Kunugi, Takanobu Watanabe, and Koji Kita, “Anomalous flatband voltage shift of AlFxOy/Al2O3 MOS capacitors: A consideration on dipole layer formation at dielectric interfaces with different anions,” Applied Physics Letters, Vol. 110, 162907 (2017). doi:10.1063/1.4980059
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