Ph.D. in Engineering, University of Tokyo

Nanomaterials, Nanomaterials

Nanostructural physics, Nanostructure physics

Crystal engineering, Crystal engineering

Applied physical properties, Applied materials

Thin film/surface and interfacial physical properties, Thin-film surfaces and interfaces

2020
Shinshu University Faculty of Textile Science and Technology Division of Machinery and Robotics Associate Professor

2019 - 2020
National Institute for Materials Science (NIMS) Center for Materials Research by Information Integration, Materials Data Science Group NIMS Invited Researcher

2018 - 2020
Tohoku University Advanced Institute for Materials Research, Non-equilibrium Materials Group Associate Professor

2015 - 2018
Osaka University Graduate School of Engineering Science, Department of Systems Innovation Division of Mathematical Science

2012 - 2018
National Institute for Materials Science (NIMS), International Center for Materials Nanoachitectonics (MANA), Guest Researcher

2012 - 2015
University of Tsukuba, Graduate School of Pure and Applied Sciences, Postdoctoral Researcher

2010 - 2012
National Institute for Materials Science (NIMS), International Center for Materials Nanoachitectonics (MANA), NIMS Posdoctoral Researcher

2006 - 2010, University of Tokyo, Graduate School of Engineering, Department of Applied Physics

2004 - 2006, University of Tokyo, Graduate School of Engineering, Department of Applied Physics

2000 - 2004, Tokyo Institute of Technology, Faculty of Science, Department of Physics

1994 - 2000, Kaisei Junior & Senior High School

2018
Committee Member, JSAP Professional Group, Phonon Engineering Group

2017
Program Committee Member (Area 11 Advanced Materials: Synthesis / Crystal Growth / Characterization), SSDM (International Conference on Solid State Devices and Materials)

2023
The Japan Society of Mechanical Engineers, Miura Award
Student presentation award for master thesis in my research group

2023
Faculty of Textile Science and Technology, Shinshu University, Harizuka Award
Student presentation award for graduate thesis in my research group

2021
Faculty of Textile Science and Technology, Harizuka Award
Student presentation award for graduate thesis in my research group

2020
Japan Society of Applied Physics, Thin Film and Surface Physics Division, JSAP Thin Film and Surface Physics Division, Paper Award

2019
CRDAM, Institute for Materials Research (IMR), Tohoku University, Best Collaborative Research Award, IMR, Tohoku University

2016
The Japan Society of Applied Physics, JSAP Poster Award

2013
ACSIN12/ICSPM-21, ACSIN12/ICSPM-21 Best Poster Award

2013
The Japan Society of Applied Physics, JSAP Poster Award

2012
7th International Workshop on Nano-Scale Spectroscopy & Nanotechnology (NSS-7), NSS-7 Best Poster Award

Nanospectroscopic Investigation of Individual Free-standing Semiconductor Nanocrystals Using In-situ Nanoprobe-Cathodoluminescence Technique
Kentaro Watanabe
The Paper of Technical Meeting on Electronic Materials (22-23 Nov. 2023), EFM23004, 19 Nov. 2023, Invited
Lead, Last, Corresponding

Bulk diffusion regulated nanopore formation during vapor phase dealloying of a Zn-Cu alloy
Yanjie Xia, Zhen Lu, Jiuhui Han, Fan Zhang, Daixiu Wei, Kentaro Watanabe, Mingwei Chen
Acta Materialia, 238, 118210, 01 Oct. 2022, Refereed, Not invited

Vapor Phase Dealloying Kinetics of MnZn Alloys
Zhen Lu, Fan Zhang, Daixiu Wei, Jiuhui Han, Yanjie Xia, Jing Jiang, Mingwang Zhong; Akihiko Hirata, Kentaro Watanabe, Alain Karma, Jonah Erlebacher, Mingwei Chen
Acta Materialia, 212, 116916, 15 Jun. 2021, Refereed

3D Bimodal Porous Amorphous Carbon with Self-Similar Porosity by Low-Temperature Sequential Chemical Dealloying
Jiuhui Han, Hongping Li, Zhen Lu, Gang Huang, Isaac Johnson, Kentaro Watanabe, Mingwei Chen
CHEMISTRY OF MATERIALS, 33(3), 1013-1021, 01 Feb. 2021, Refereed

Spin-orbit torque generated by a ferromagnet / a metallic glass bilayer
Satoshi Iihama, Yuya Koike, Zhen Lu, Kentaro Watanabe, Mingwei Chen, Shigemi Mizukami
APPLIED PHYSICS EXPRESS, 13(5), 053002, 20 Apr. 2020, Refereed

Ultrastable Silicon Anode by Three-Dimensional Nanoarchitecture Design
Gang Huang, Jiuhui Han, Zhen Lu, Daixiu Wei, Hamzeh Kashani, Kentaro Watanabe, Mingwei Chen
ACS Nano, 14(4), 4374-4382, 18 Mar. 2020, Refereed

The interaction of deformation twins with long-period stacking ordered precipitates in a magnesium alloy subjected to shock loading
Fan Zhang, Yu Ren, Zhiqing Yang, Huhu Su, Zhen Lu, Chengwen Tan, Hailong Peng, Kentaro Watanabe, Bin Li, Matthew R Barnett, Mingwei Chen
Acta Materialia, 188, 203-214, 05 Feb. 2020, Refereed

Methodology of Thermoelectric Power Factor Enhancement by Nanoscale Thermal Management in Bulk SiGe Composites
Shunya Sakane, Takafumi Ishibe, Masato Kashino, Kentaro Watanabe, Takeshi Fujita, Yoshinari Kamakura, Nobuya Mori, Yoshiaki Nakamura
ACS Applied Energy Materials, 3, 1235-1241, 30 Dec. 2019, Refereed

リチウム空気電池における反応中のダイナミクス観察
韓 久慧, 渡辺 健太郎, 陳 明偉
「リチウムイオン電池の分析、解析と評価技術 事例集」, 第７章(第１節), 453-464, 29 Nov. 2019, Invited

Bottom-up on surface synthesis of two-dimensional Graphene nanoribbon networks and their thermoelectric properties
Takahiro Kojima, Takahiro Nakae, Zhen Xu, Chinnusamy Saravanan, Kentaro Watanabe, Yoshiaki Nakamura, Hiroshi Sakaguchi
Chemistry - An Asian Journal, 14, 4400-4407, 14 Nov. 2019, Refereed

Three-Dimensional Nanoporous Co9S4P4 Pentlandite as a Bifunctional Electrocatalyst for Overall Neutral Water Splitting
Tan Yongwen, Luo Min, Liu Pan, Cheng Chun, Han Jiuhui, Watanabe Kentaro, Chen Mingwei
ACS Applied Materials and Interfaces, 11(4), 3880-3888, 07 Jan. 2019, Refereed

Vapor phase dealloying: a versatile approach for fabricating 3D nanoporous materials
Han Jiuhui, Li Cheng, Lu Zhen, Wang Hao, Wang Zhili, Watanabe Kentaro, Chen Mingwei
Acta Materialia, 163, 161-172, Jan. 2019, Refereed

Enhanced thermoelectric performance of Ga-doped ZnO film by controlling crystal quality for transparent thermoelectric films
Atsuki Tomeda, Takafumi Ishibe, Tatsuhiko Taniguchi, Ryo Okuhata, Kentaro Watanabe, Yoshiaki Nakamura
Thin Solid Films, 666, 185-190, 30 Nov. 2018, Refereed

Lithiophilic 3D nanoporous nitrogen-doped graphene for dendrite-free and ultrahigh-rate lithium metal anodes
Huang Gang, Han Jiuhui, Zhang Fan, Wang Ziqian, Kashani Hamzeh, Watanabe Kentaro, Chen Mingwei
ADVANCED MATERIALS, 31(2), 1805334, 06 Nov. 2018, Refereed

Methodology of thermoelectric power factor enhancement by controlling nanowire interface
Takafumi Ishibe, Atsuki Tomeda, Kentaro Watanabe, Yoshinari Kamakura, Nobuya Mori, Nobuyasu Naruse, Yutaka Mera, Yuichiro Yamashita, Yoshiaki Nakamura
ACS Applied Materials and Interfaces, 10(43), 37709-37716, 10 Oct. 2018, Refereed

Heavily Doped and Highly Conductive Hierarchical Nanoporous Graphene for Electrochemical Hydrogen Production
Linghan Chen,Jiuhui Han,Yoshikazu Ito,Takeshi Fujita,Gang Huang,Kailong Hu,Akihiko Hirata,Kentaro Watanabe,Mingwei Chen
Angewandte Chemie International Edition, 57(40), 13302-13307, 24 Aug. 2018, Refereed

Formation of various epitaxial nanodots in Si films for thermoelectric materials
Sakane Shunya, Watanabe Kentaro, Fujita Takeshi, Naruse Nobuyasu, Nakamura Yoshiaki
Journal of Physics: Conference Series, 1052, 012135, 26 Jul. 2018, Refereed

Thermoelectric performances in transparent ZnO films including nanowires as phonon scatterers
Takafumi Ishibe, Atsuki Tomeda, Kentaro Watanabe, Yoshiaki Nakamura
Journal of Physics: Conference Series, 1052, 012126, 26 Jul. 2018, Refereed

Areal density control of ZnO nanowires in physical vapor transport using Ge nanocrystals
Takafumi Ishibe, Tatsuhiko Taniguchi, Tsukasa Terada, Atsuki Tomeda, Kentaro Watanabe, Yoshiaki Nakamura
Japanese Journal of Applied Physics, 57(8S1), 08NB07, 17 Jul. 2018, Refereed

Growth of epitaxial FeGeγ nanocrystals with incommensurate Nowotny chimney-ladder phase on Si substrate
Tsukasa Terada, Takafumi Ishibe, Kentaro Watanabe, Yoshiaki Nakamura
Japanese Journal of Applied Physics, 57(8S1), 08NB01, 28 Jun. 2018, Refereed

Resistive switching characteristics of isolated core-shell iron oxide / germanium nanocrystals epitaxially grown on Si substrates
Hideki Matsui, Takafumi Ishibe, Tsukasa Terada, Shunya Sakane, Kentaro Watanabe, Shotaro Takeuchi, Akira Sakai, Shigeru Kimura, Yoshiaki Nakamura
APPLIED PHYSICS LETTERS, 112(3), 031601, 15 Jan. 2018, Refereed

Nanostructure design for control of phonon andelectron transports
Nakamura Yoshiaki, Watanabe Kentaro
ECS Transactions, 80(1), 93-100, 03 Oct. 2017, Refereed

Epitaxial multilayers of beta-FeSi2 nanodots/Si for Si-based nanostructured electronic materials
Shunya Sakane, Masayuki Isogawa, Kentaro Watanabe, Jun Kikkawa, Shotaro Takeuchi, Akira Sakai, Yoshiaki Nakamura
Journal of Vacuum Science and Technology A, 35(4), 041402, 02 Jun. 2017, Refereed

Thermoelectric properties of epitaxial beta-FeSi2 thin films/Si(111) and enhancement approach of its thermoelectric performance
Tatsuhiko Taniguchi, Shunya Sakane, Shunsuke Aoki, Ryo Okuhata, Takafumi Ishibe, Kentaro Watanabe, Takeyuki Suzuki, Takeshi Fujita, Yoshiaki Nakamura
Journal of Electronic Materials, 46(5), 3235-3241, May 2017, Refereed

Thermal Conductivity Measurement of Thermoelectric Thin Films by a Versatility-Enhanced 2ω Method
Ryo Okuhata, Kentaro Watanabe, Satoaki Ikeuchi, Akihiro Ishida, Yoshiaki Nakamura
Journal of Electronic Materials, 46(5), 3089-3096, May 2017, Refereed

Embedded-ZnO Nanowire Structure for High-Performance Transparent Thermoelectric Materials
Takafumi Ishibe, Atsuki Tomeda, Kentaro Watanabe, Jun Kikkawa, Takeshi Fujita, Yoshiaki Nakamura
Journal of Electronic Materials, 46(5), 3020-3024, May 2017, Refereed

Thermoelectric properties of epitaxial β-FeSi2 thin films grown on Si(111) substrates with various film qualities
Kentaro Watanabe, Tatsuhiko Taniguchi, Shunya Sakane, Shunsuke Aoki, Takeyuki Suzuki, Takeshi Fujita, Yoshiaki Nakamura
Japanese Journal of Applied Physics, 56(5S1), 05DC04, Apr. 2017, Refereed

Independent control of phonon and electron transport in Si-based nanoarchitectures with epitaxial Ge nanodots
Watanabe Kentaro,Yamasaka Shuto,Ishibe Takafumi,Sakane Shunya,Sawano Kentarou,Nakamura Yoshiaki
Proceedings of 1st Asian Conference onThermal Sciences 2017 (ACTS 2017), 1-3, Mar. 2017

Effect of Fe coating of nucleation sites on epitaxial growth of Fe oxide nanocrystals on Si substrates
Takafumi Ishibe, Kentaro Watanabe, Yoshiaki Nakamura
Japanese Journal of Applied Physics, 55(8S1), 08NB12, 11 Jun. 2016, Refereed

Epitaxial iron oxide nanocrystals with memory function grown on Si substrates
Takafumi Ishibe, Hideki Matsui, Kentaro Watanabe, Shotaro Takeuchi, Akira Sakai, Yoshiaki Nakamura
APPLIED PHYSICS EXPRESS, 9(5), 055508, 25 Apr. 2016, Refereed

Independent control of electrical and heat conduction by nanostructure designing for Si-based thermoelectric materials
Shuto Yamasaka, Kentaro Watanabe, Shunya Sakane, Shotaro Takeuchi, Akira Sakai, Kentarou Sawano, Yoshiaki Nakamura
SCIENTIFIC REPORTS, 6, 28838, Mar. 2016, Refereed

Arbitrary cross-section SEM-cathodoluminescence imaging of growth sectors and local carrier concentrations within micro-sampled semiconductor nanorods
Kentaro Watanabe, Takahiro Nagata, Seungjun Oh, Yutaka Wakayama, Takashi Sekiguchi, Janos Volk, Yoshiaki Nakamura
NATURE COMMUNICATIONS, 7, 10609, 16 Feb. 2016, Refereed

Fabrication of Carrier-Doped Si Nanoarchitecture for Thermoelectric Material by Ultrathin SiO2 Film Technique
Tomohiro Ueda, Shunya Sakane, Takafumi Ishibe, Kentaro Watanabe, Shotaro Takeuchi, Akira Sakai, Yoshiaki Nakamura
Journal of Electronic Materials, 45(3), 1914-1920, 2016, Refereed

Cross-sectional electric field distributions in BaSi2 homo and BaSi2/Si hetero pn junctions
Masakazu Baba, Kentaro Watanabe, Kosuke O. Hara, Takashi Sekiguchi, Weijie Du, Ryota Takabe, Kaoru Toko, Noritaka Usami, Takashi Suemasu
IEEE Xplore Digital Library, 0206-0208, Dec. 2015

Metamorphic GaAs/GaAsBi Heterostructured Nanowires
Fumitaro Ishikawa, Yoshihiko Akamatsu, Kentaro Watanabe, Fumihiko Uesugi, Shunsuke Asahina, Uwe Jahn, Satoshi Shimomura
NANO LETTERS, 15(11), 7265-7272, 26 Oct. 2015, Refereed

Cathodoluminescence and Photoconductive Characteristics of Single-Crystal Ternary CdS/CdSe/CdS Biaxial Nanobelts
Linfeng Hu, Jian Yan, Yong Kim, Guangtao Fei, Kentaro Watanabe, Takashi Sekiguchi, Lide Zhang, Xiaosheng Fang
SMALL, 11(13), 1531-1536, 01 Apr. 2015, Refereed

Cross-sectional potential profile across a BaSi2 pn junction by Kelvin probe force microscopy
Daichi Tsukahara, Masakazu Baba, Kentaro Watanabe, Takashi Kimura, Kosuke O. Hara, Weijie Du, Noritaka Usami, Kaoru Toko, Takashi Sekiguchi, Takashi Suemasu
Japanese Journal of Applied Physics, 54(3), 030306, Mar. 2015, Refereed

Band-Gap Deformation Potential and Elasticity Limit of Semiconductor Free-Standing Nanorods Characterized in Situ by Scanning Electron Microscope-Cathodoluminescence Nanospectroscopy
Kentaro Watanabe, Takahiro Nagata, Yutaka Wakayama, Takashi Sekiguchi, Róbert Erdéryi, János Volk
ACS Nano, 9(3), 2989-3001, 17 Feb. 2015, Refereed

Grain boundaries characterization of semiconducting BaSi2 thin films on a polycrystalline Si substrate
Masakazu Baba, Kosuke O. Hara, Kentaro Watanabe, Weijie Du, Daichi Tsukahara, Kaoru Toko, Karolin Jiptner, Takashi Sekiguchi, Noritaka Usami, Takashi Suemasu
IEEE Xplore Digital Library, 0206-0208, Oct. 2014

Nonwetting and Optical Properties of Hexagonal Boron Nitride Films
Amir Pakdel, Chunyi Zhi, Yoshio Bando, Kentaro Watanabe, Takashi Sekiguchi, Tomonobu Nakayama, Dmitri Golberg
GSTF Digital Library, Sep. 2014

Cross-sectional observation of stacking faults in 4H-SiC by KOH etching on nonpolar {1-100} face, cathodoluminescence imaging, and transmission electron microscopy
Yao Yongzhao, Ishikawa Yukari, Sugawara Yoshihiro, Sato Koji, Shirai Takayuki, Danno Katsunori, Suzuki Hiroshi, Sakamoto Hidemitsu, Bessho Takeshi, Dierre Benjamin, Watanabe Kentaro, Sekiguchi Takashi
Japanese Journal of Applied Physics, 53(8), 081301, Aug. 2014, Refereed

Si-based new material for high-efficiency thin film solar cells
Weijie Du, Masakazu Baba, Kaoru Toko, Kosuke O. Hara, Kentaro Watanabe, Takashi Sekiguchi, Noritaka Usami, Takashi Suemasu
IEEE Xplore Digital Library, 69-72, Jul. 2014

Analysis of the electrical properties of Cr/n-BaSi2 Schottky junction and n-BaSi2/p-Si heterojunction diodes for solar cell applications
Weijie Du,Masakazu Baba,Kaoru Toko,Kosuke O. Hara,Kentaro Watanabe,Takashi Sekiguchi,Noritaka Usami,Takashi Suemasu
JOURNAL OF APPLIED PHYSICS, 115(22), 223701, Jun. 2014, Refereed

Focused ion beam imaging of defects in multicrystalline Si for photovoltaic application
Yoshiji Miyamura, Takashi Sekiguchi, Jun Chen, Jianyong Li, Kentaro Watanabe, Kazuhiro Kumagai, Atsushi Ogura
Acta Physica Polonica A, 125(4), 991-993, Apr. 2014, Refereed

Local electrical properties of n-AlInAs/i-GaInAs electron channel structures characterized by the probe-electron-beam-induced current technique
Kentaro Watanabe, Takeshi Nokuo, Jun Chen, Takashi Sekiguchi
Microscopy, 63(2), 161-166, Apr. 2014, Refereed

Comparison of slicing-induced damage in hexagonal SiC by wire sawing with loose abrasive, wire sawing with fixed abrasive, and electric discharge machining
Yukari Ishikawa, Yong-Zhao Yao, Yoshihiro Sugawara, Koji Sato, Yoshihiro Okamoto, Noritaka Hayashi, Benjamin Dierre, Kentaro Watanabe, Takashi Sekiguchi
Japanese Journal of Applied Physics, 53(7), 071301, Jan. 2014, Refereed

Evaluation of minority carrier diffusion length of undoped n-BaSi2 epitaxial thin films on Si(001) substrates by electron-beam-induced-current technique
Masakazu Baba, Kentaro Watanabe, Kosuke O. Hara, Kaoru Toko, Takashi Sekiguchi, Noritaka Usami, Takashi Suemasu
Japanese Journal of Applied Physics, 53(7), 078004, 2014, Refereed

Evaluation of potential variations around grain boundaries in BaSi2 epitaxial films by Kelvin probe force microscopy
Masakazu Baba, Sadahiro Tsurekawa, Kentaro Watanabe, Weijie Du, Kaoru Toko, Kosuke O. Hara, Noritaka Usami, Takashi Sekiguchi, Takashi Suemasu
APPLIED PHYSICS LETTERS, 103(14), 142113, Oct. 2013, Refereed

Cathodoluminescence Modulation of ZnS Nanostructures by Morphology, Doping, and Temperature
Hui Liu, Linfeng Hu, Kentaro Watanabe, Xinhua Hu, Benjamin Dierre, Bongsoo Kim, Takashi Sekiguchi, Xiaosheng Fang
ADVANCED FUNCTIONAL MATERIALS, 23(29), 3701-3706, Aug. 2013, Refereed

Conductive optical-fiber STM probe for local excitation and collection of cathodoluminescence at semiconductor surfaces
Kentaro Watanabe, Yoshiaki Nakamura, Masakazu Ichikawa
Optics Express, 21(16), 19261-19268, Aug. 2013, Refereed

High-yield boron nitride nanosheets from 'chemical blowing': towards practical applications in polymer composites
Wang Xuebin, Pakdel Amir, Zhi Chunyi, Watanabe Kentaro, Sekiguchi Takashi, Golberg Dmitri, Bando Yoshio
Journal of Physics-Condensed Matter, 24(31), 314205, Jul. 2012, Refereed

Cross sectional CL study of the growth and annihilation of pit type defects in HVPE grown (0001) thick GaN
Woong Lee, Hyunjae Lee, Seunghwan Park, Kentaro Watanabe, Kazuhiro Kumagai, Takahumi Yao, Jiho Chang, Takashi Sekiguchi
Journal of Crystal Growth, 351(1), 83-87, Apr. 2012, Refereed

Scanning tunneling microscope-based local electroluminescence spectroscopy of p-AlGaAs/i-GaAs/n-AlGaAs double heterostructure
Watanabe Kentaro, Ichikawa Masakazu, Nakamura Yoshiaki, Kuboya Shigeyuki, Katayama Ryuji, Onabe Kentaro
Journal of Vacuum Science & Technology B, 30(2), 021802, Feb. 2012, Refereed

Facile synthesis of vertically aligned hexagonal boron nitride nanosheets hybridized with graphitic domains
Pakdel Amir, Wang Xuebin, Zhi Chunyi, Bando Yoshio, Watanabe Kentaro, Sekiguchi Takashi, Nakayama Tomonobu, Golberg Dmitri
JOURNAL OF MATERIALS CHEMISTRY, 22(11), 4818-4824, Jan. 2012, Refereed

Cathodoluminescence study of nonuniformity in hydride vapor phase epitaxy-grown thick GaN films
Lee Woong, Watanabe Kentaro, Kumagai Kazuhiro, Park Seunghwan, Lee Hyunjae, Yao Takafumi, Chang Jiho, Sekiguchi Takashi
Journal of Electron Microscopy, 61(1), 25-30, Jan. 2012, Refereed

Crystal growth and characterization of gallium oxynitride nanowires grown on seed crystals
Masubuchi Yuji, Yamaoka Ryohei, Motohashi Teruki, Kirihara Kazuhiko, Lee Woong, Watanabe Kentaro, Sekiguchi Takashi, Kikkawa Shinichi
Journal of Crystal Growth, 337(1), 87-92, Oct. 2011, Refereed

Nature and role of various Si-based sensitizers for Er3+ ions in Silicon-rich silicon oxide thin films
Sébastien Cueff, Christophe Labbé, Kentaro Watanabe, Benjamin Dierre, Takashi Sekiguchi, Richard Rizk
Advanced Materials Research, 324, 81-84, Aug. 2011, Refereed

Development of Novel System Combining Scanning Tunneling Microscope-Based Cathodoluminescence and Electroluminescence Nanospectroscopies
Watanabe Kentaro, Nakamura Yoshiaki, Kuboya Shigeyuki, Katayama Ryuji, Onabe Kentaro, Ichikawa Masakazu
Japanese Journal of Applied Physics, 50(8S3), 08LB08, Aug. 2011, Refereed

カソードルミネセンス分析
関口 隆史, 渡辺 健太郎
ぶんせき, (7), 411-415, Jul. 2011, Refereed, Invited

Scanning tunneling microscope-cathodoluminescence measurement of the GaAs/AlGaAs heterostructure
Watanabe Kentaro, Nakamura Yoshiaki, Ichikawa Masakazu, Kuboya Shigeyuki, Katayama Ryuji, Onabe Kentaro
Journal of Vacuum Science & Technology B, 27(4), 1874-1880, Jun. 2009, Refereed

Local optical characterization related to Si cluster concentration in GaAs using scanning tunneling microscope cathodoluminescence spectroscopy
Watanabe Kentaro, Nakamura Yoshiaki, Ichikawa Masakazu
Japanese Journal of Applied Physics, 47(7S2), 6109-6113, Jul. 2008, Refereed

Spatial resolution of imaging contaminations on the GaAs surface by scanning tunneling microscope-cathodoluminescence spectroscopy
Watanabe Kentaro, Nakamura Yoshiaki, Ichikawa Masakazu
Applied Surface Science, 254(23), 7737-7741, Feb. 2008, Refereed

Measurements of local optical properties of Si-doped GaAs (110) surfaces using modulation scanning tunneling microscope cathodoluminescence spectroscopy
Watanabe Kentaro, Nakamura Yoshiaki, Ichikawa Masakazu
Journal of Vacuum Science & Technology B, 26(1), 195-200, Jan. 2008, Refereed

Quantum fluctuation of tunneling current in individual Ge quantum dots induced by a single-electron transfer
Nakamura Yoshiaki, Ichikawa Masakazu, Watanabe Kentaro, Hatsugai Yasuhiro
APPLIED PHYSICS LETTERS, 90(15), 153104-153106, Apr. 2007, Refereed

Observation of the quantum-confinement effect in individual Ge nanocrystals on oxidized Si substrates using scanning tunneling spectroscopy
Yoshiaki Nakamura, Kentaro Watanabe, Yo Fukuzawa, Masakazu Ichikawa
APPLIED PHYSICS LETTERS, 87(13), 133119-133121, Sep. 2005, Refereed

[Invited] Nanospectroscopic Investigation of Individual Free-standing Semiconductor Nanocrystals Using In-situ Nanoprobe-Cathodoluminescence Technique
Kentaro Watanabe
Technical Meeting on Electronic Materials, IEE Japan, 22 Nov. 2023, The Institute of Electrical Engineers of Japan, Invited

Si基板上のh-BNナノシート合成に向けた下地基板及びCVD条件の検討
岡本 朋大、岡部 稔也、渡辺 健太郎
2023年秋季<第84回>応用物理学会, 19 Sep. 2023, 応用物理学会, Not invited

Tuning CVD growth conditions for enlarging monolayer MoS2 crystal
Kakeru Fujii, Toshiya Okabe, Kentaro Watanabe
SSDM2023, 06 Sep. 2023, The Japan Society of Applied Physics, Not invited

Development of CL nano-spectroscopy for monolayer materials using wet sheet transfer technique
Toshiya Okabe, Kentaro Watanabe
SSDM2023, 06 Sep. 2023, The Japan Society of Applied Physics, Not invited

熱伝導率低減に向けた超高面密度Si自立ナノワイヤ周期配列の作製
内山 幹太、渡辺 健太郎
2023年春季<第70回>応用物理学会, 17 Mar. 2023, 応用物理学会, Not invited

超高面密度・完全配向ZnOナノロッド配列の周期構造化に向けたテンプレート基板の検討
野呂 拓未、目片 祥、渡辺 健太郎
2023年春季<第70回>応用物理学会, 17 Mar. 2023, 応用物理学会, Not invited

Impact of Oxygen Annealing Temperature on Electrical Conductivity of Individual Free-standing ZnO Nanowires Studied by In-situ “Differential” I-V Method
Kota Miyajima, Yuki Murata, Kentaro Watanabe
2022 International Conference on Solid State Devices and Materials (SSDM 2022), 28 Sep. 2022, The Japan Society of Applied Physics, Not invited

Heteroepitaxial Chemical Bath Deposition of Ultra-High Density ZnO Nanorod Ar-rays on Au thin-films: Impacts of Au thin-film crystallinity and Periodic Template
Sho Mekata, Yuki Murata, Kentaro Watanabe
2022 International Conference on Solid State Devices and Materials (SSDM 2022), 28 Sep. 2022, The Japan Society of Applied Physics, Not invited

ZnOナノ構造の溶液成長におけるH2O2添加効果の検討
北澤 裕太郎、渡辺 健太郎
2022年秋季<第83回>応用物理学会, 21 Sep. 2022, The Japan Society of Applied Physics, Not invited

添加剤を用いた溶液成長ZnOナノ結晶配列のアスペクト比制御とその薄膜化
武内 大和、渡辺 健太郎
2022年秋季<第83回>応用物理学会, 21 Sep. 2022, The Japan Society of Applied Physics, Not invited

湿式剥離転写技術を用いた原子層材料の顕微CL分光法の開発
岡部 稔也、藤井 駆、渡辺 健太郎
2022年秋季<第83回>応用物理学会, 20 Sep. 2022, The Japan Society of Applied Physics, Not invited

二次元材料MoS2の結晶粒径拡大に向けたCVD成長条件の検討
藤井 駆、岡部 稔也、渡辺 健太郎
2022年秋季<第83回>応用物理学会, 20 Sep. 2022, The Japan Society of Applied Physics, Not invited

[Invited] Nanospectroscopic / electrical analyses of individual free-standing semiconductor nanorods using in-situ nanoprobe-cathodoluminescence technique
Kentaro Watanabe
The 5th International Union of Materials Research Societies International Conference of Young Researchers on Advanced Materials (IUMRS-ICYRAM 2022), 04 Aug. 2022, International Union of Materials Research Societies (IUMRS), Invited

Solution-based Impurity Doping into Free-Standing Si Nanowire Arrays for Thermoelectric Power Generators
Ikutaroh Tanaka, Kentaro Watanabe
The 6th Asia-Pacific Conference on Semiconducting Silicides and Related Materials (APAC-Silicide 2022), 30 Jul. 2022, The Professional Group of Semiconducting Silicides and Related Materials, JSAP, Not invited

Thermal conductivity measurement of free-standing Si nanowire arrays using embedding organic medium
Kentaro Watanabe, Yoshiaki Nakamura
The 6th Asia-Pacific Conference on Semiconducting Silicides and Related Materials (APAC-Silicide 2022), 30 Jul. 2022, The Professional Group of Semiconducting Silicides and Related Materials, JSAP, Not invited

[Keynote] Nanospectroscopic investigation of individual free-standing semiconductor nanorods using in-situ nanoprobe-cathodoluminescence technique
Kentaro Watanabe
2021 Materials Research Society-Taiwan International Conference (2021 MRSTIC), 13 Nov. 2021, Materials Research Society-Taiwan, Invited

熱電発電応用に向けたSi自立ナノワイヤ配列への高濃度ドーピング
田中 幾多郎、渡辺 健太郎
2021年秋季<第82回>応用物理学会, 12 Sep. 2021, 応用物理学会, Not invited

超高面密度ZnOナノロッド配列のヘテロエピタキシャル溶液成長とその周期構造化
目片 祥、村田 雄生、渡辺 健太郎
2021年秋季<第82回>応用物理学会, 10 Sep. 2021, 応用物理学会, Not invited

単一自立ナノワイヤのその場差分I-V測定による電気伝導率評価
宮嶋 航汰、村田 雄生、渡辺 健太郎
2021年秋季<第82回>応用物理学会, 10 Sep. 2021, 応用物理学会, Not invited

酸素雰囲気アニールによるZnO自立ナノロッドの電気絶縁化とそのナノ分光・電気特性評価
村田 雄生、宮嶋 航汰、渡辺 健太郎
2021年秋季<第82回>応用物理学会, 10 Sep. 2021, 応用物理学会, Not invited

Impurity Doping and Ohmic Contact Fabrication on Free-Standing Si Nanowire Arrays for Thermoelectric Applications
Ikutaroh Tanaka, Kentaro Watanabe
2021 International Conference on Solid State Devices and Materials (SSDM 2021), 07 Sep. 2021, Japan Society of Applied Physics, Not invited

Heteroepitaxial Chemical Bath Deposition of Ultra-High Density ZnO Nanorod Arrays on Au films and Au Periodic Templates
Sho Mekata, Yuki Murata, Kentaro Watanabe
2021 International Conference on Solid State Devices and Materials (SSDM 2021), 07 Sep. 2021, Japan Society of Applied Physics, Not invited

In-situ Electrical Conductivity Measurements of Individual Free-standing Nanowires Grown on a Substrate
Kota Miyajima, Yuki Murata, Kentaro Watanabe
2021 International Conference on Solid State Devices and Materials (SSDM 2021), 07 Sep. 2021, Japan Society of Applied Physics, Not invited

Nanospectroscopic / In-situ Electrical Analyses of Indivudial ZnO Nanowires Insulated by Thermal Annealing in Oxygen Ambient
Yuki Murata, Kota Miyajima, Kentaro Watanabe
2021 International Conference on Solid State Devices and Materials (SSDM 2021), 07 Sep. 2021, Japan Society of Applied Physics, Not invited

顕微CL法を用いた単原子層シートのナノスケール発光/吸収分光
渡辺 健太郎、衣 瑋、陳 君、窪谷 茂幸
2020年秋季<第81回>応用物理学会, 10 Sep. 2020, 応用物理学会, Not invited

[Invited] Nanospectroscopic investigation of individual free-standing semiconductor nanowires using nanoprobe-cathodoluminscence techniques
Kentaro Watanabe
2018 IEEE 8th International Conference on Nanomaterials: Application & Properties (NAP-2018), 12 Sep. 2018, IEEE-Ukraine, Invited

[Invited] A versatile thermal conductivity measurement of free-standing nanowire array structures using embedding organic material films
Kentaro Watanabe,Yoshiaki Nakamura
2017 Global Research Efforts on Energy and Nanomaterials (GREEN 2017), 22 Dec. 2017, Asia Pacific Society for Materials Research, Invited

[招待講演] Nanoprobe-CL法による半導体単結晶自立ナノワイヤの顕微物性評価
渡辺健太郎
第８回真空・表面科学若手研究会, 27 Oct. 2017, 真空・表面科学若手研究会実行委員会, Invited

[Invited] Nanospectroscopic investigation of individual free-standing semiconductor nanowires using nanoprobe-cathodoluminscence techniques
Kentaro Watanabe
SSDM 2017, 22 Sep. 2017, 応用物理学会, Invited

[招待講演] Nanoprobe-CL法による半導体ナノ結晶の顕微物性評価
渡辺 健太郎
2016年春季<第63回>応用物理学会, 19 Mar. 2016, 応用物理学会, Invited

[依頼講演] 半導体ナノワイヤ歪変調バンドギャップのその場顕微評価
渡辺 健太郎，関口 隆史
国際ナノテクノロジー総合展・技術会議(nano tech 2015), 30 Jan. 2015, nano tech実行委員会, Not invited

[依頼講演] 半導体ナノワイヤのバンド端変形ポテンシャルと曲げ歪・表面弾性
渡辺 健太郎，関口 隆史
SATテクノロジー・ショーケース2015, 21 Jan. 2015, つくばサイエンス・アカデミー, Not invited

Composite Functional Materials, Nanomaterials Science and Engineering
Shinshu University

Advanced Electronic Materials
Shinshu University

Experimental Engineering and Machining IV
Shinshu University

Experimental Engineering and Machining II
Shinshu University

Thermodynamics II
Shinshu University

Experimental Engineering and Machining I
Shinshu University

Seminar of Functional Machinery and Mechanics I
Shinshu University

Energy Conversion Engineering
Shinshu University

Apr. 2008
The Japan Society of Applied Physics

圧電体自立ナノロッド配列を用いた高温環境下の自立圧電デバイスの創出
科学研究費補助金, 基盤研究(B)
Apr. 2020 - Mar. 2023

低次元半導体ナノ構造の超高密度配列の実現と革新的エネルギーデバイスの創出
科学研究費補助金, 文部科学省 卓越研究員事業
Nov. 2019 - Mar. 2024

Materials informatics-guided nano-fabrication and nano-characterization of hetero-nanostructure monolayers for transparent flexible 2D electronics
東北大学材料科学高等研究所
Sep. 2019 - Mar. 2020

数学・データ科学を用いた原子層トランジスタ材料の創出
May 2019 - Feb. 2020

He-ion beam lithography-assisted CVD synthesis and structural / optoelectronic characterization of nanometric lateral heterostructure in semiconducting monolayered transition metal dichalcogenides
東北大学材料科学高等研究所
Sep. 2018 - Mar. 2019

アモルファス系電池用材料の局所原子配列と充放電機構
科学研究費補助金, 基盤研究(A)
Apr. 2018 - Mar. 2020

ナノ構造の金属材料における評価と光学を使った特性の研究
科学研究費補助金, 特別研究員奨励費
2018 - 2019

Pd系金属ガラスの相分離組織に関する微視的観察
科学研究費補助金, 特別研究員奨励費
2018 - 2018

ナノ弾性の顕在化による超高面密度ZnO自立ナノロッド配列の圧電電荷出力の向上
科学研究費補助金, 基盤研究(C)
Apr. 2017 - Mar. 2020

溶液成長ZnOナノロッド圧電素子の圧電性・弾性評価と成長制御による圧電応答改善
科学研究費補助金, 若手研究(B)
01 Apr. 2014 - 31 Mar. 2016

絶縁性ナノ構造の発光特性評価に適したカソードルミネッセンス顕微分光法の開発
科学研究費補助金, 若手研究(B)
Apr. 2011 - Mar. 2013

科学技術振興機構『グローバルサイエンスキャンパス』委託事業 「大阪大学SEEDSプログラム」
大阪大学, 01 Apr. 2016 - 31 Mar. 2018

2019年度NIMS-Tohoku 戦略的共同研究パートナー
物質・材料研究機構、東北大学, May 2019, Others

Research Highlight "Conductive optical-fibre STM probe for local excitation and collection of cathodoluminescence at semiconductor surfaces"
Advances in Engineering, Canada, 20 Nov. 2013, Others