Journal Papers

category

Journal Papers 2021

●Time-Dependent Imprint in Hf0.5Zr0.5O2 Ferroelectric Thin Films
Kenshi Takada, Shuya Takarae, Kento Shimamoto, Norifumi Fujimura, Takeshi Yoshimura
Advanced Electronic Materials
https://doi.org/10.1002/aelm.202100151

●Ultralarge Photoluminescence Enhancement of Monolayer Molybdenum Disulfide by Spontaneous Superacid Nanolayer Formation
Y. Yamada, Y. Zhang, H. Ikeno, K. Shinokita, T. Yoshimura, A. Ashida, N. Fujimura, K. Matsuda, and D. Kiriya
ACS Applied Materials & Interfaces(in press)

●Strong Photoluminescence Enhancement from Bilayer Molybdenum Disulfide via the Combination of UV-irradiation and Superacid Molecular Treatment
Yuki Yamada, Takeshi Yoshimura, Atsushi Ashida, Norifumi Fujimura, Daisuke Kiriya
Applied Sciences 11(8), 3530 (2021).
https://doi.org/10.3390/app11083530

●Characteristics of Sputtered Lead Zirconate Titanate Thin Films with Different Layer Configurations and Large Thickness
K. Kanda, T. Koyama, T. Yoshimura, S. Murakami, K. Maenaka
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 68(5):1988-1993 (2021).
https://ieeexplore.ieee.org/document/9264229

Journal Papers 2020

●Dependency of direct and inverse transverse piezoelectric properties on composition in self-polarized epitaxial (KxNa1−x)NbO3 films grown via a hydrothermal method
A. Tateyama, Y. Ito, T. Shimizu, Y. Orino, M. Kurosawa, T.Yoshimura, H. Funakubo
Jpn. J. Appl. Phys. 59, SPPC03 (2020).
https://iopscience.iop.org/article/10.35848/1347-4065/aba9b3

●Good piezoelectricity of self-polarized thick epitaxial (K,Na)NbO3 films grown below the Curie temperature (240 °C) using a hydrothermal method
A. Tateyama, Y. Ito, Y. Nakamura, T. Shimizu, Y. Orino, M. Kurosawa, H. Uchida, T. Shiraishi, T. Kiguchi, T. J. Konno, T. Yoshimura, H. Funakubo
Appl. Phys. Lett. 117, 142903 (2020)
https://aip.scitation.org/doi/10.1063/5.0017990

●Supersensitive Ultrasound Probes for Medical Imaging by Piezoelectric MEMS with Complemented Transmitting and Receiving Transducers
K. Suzuki, Y. Nakayama, N. Shimizu, T. Mizuno, Y. Mita, T. Yoshimura
2020 IEEE International Ultrasonics Symposium (IUS), Las Vegas, NV, USA, 2020, pp. 1-4
https://ieeexplore.ieee.org/document/9251511

●Combinatorial study of the phase development of sputtered Pb(Zr,Ti)O3 films
M. Murase, T. Yoshimura and N. Fujimura
J. J. Appl. Phys. 59 SPPC05 (2020)
https://iopscience.iop.org/article/10.35848/1347-4065/abb4c0

●Investigation of Efficient Piezoelectric Energy Harvesting from Impulsive Force
S. Aphayvong, T. Yoshimura, S. Murakami, K. Kanda, N. Fujimura
J. J. Appl. Phys. 59 SPPD04 (2020)
https://iopscience.iop.org/article/10.35848/1347-4065/abad16

●Change in the defect structure of composition controlled single-phase YbFe2O4 epitaxial thin films
K. Shimamoto, J. Tanaka, K. Miura, D. Kiriya, T. Yoshimura, N. Fujimura
J. J. Appl. Phys. 59 SPPB07 (2020)
https://iopscience.iop.org/article/10.35848/1347-4065/aba9b2

●Photoactivation of Strong Photoluminescence in Superacid-Treated Monolayer Molybdenum Disulfide
Y. Yamada, K. Shinokita, Y. Okajima, S. N. Takeda, Y. Matsushita, K. Takei, T. Yoshimura, A. Ashida, N. Fujimura, K. Matsuda, D. Kiriya
ACS Appl. Mater. Interfaces, 2020, 12, 36496–36504 (2020)
https://pubs.acs.org/doi/abs/10.1021/acsami.0c09084

●Investigation of the electrocaloric effect in ferroelectric polymer film through direct measurement under alternating electric field
Y. Matsushita, T. Yoshimura, D. Kiriya, N. Fujimura
Appl. Phys. Express 13, 041007  (2020)
https://doi.org/10.35848/1882-0786/ab8053

●Valence states and the magnetism of Eu ions in Eu-doped GaN
T.Nunokawa, Y. Fujiwara, Y. Miyata, N. Fujimura, T.Sakurai, H.Ohta, A.Masago, H.Shinya, T. Fukushima, K. Sato, H. Katayama-Yoshida
Journal of Applied Physics 127, 083901 (2020)
https://doi.org/10.1063/1.5135743

Journal Papers 2019

Monolithic Integration of P(VDF-TrFE) Thin Film on CMOS for Wide-band Ultrasonic Transducer Arrays
K. Suzuki, Y. Nakayama, I. Kanagawa, Y. Matsushita, T. Mizuno, Y. Mita, T. Yoshimura
2019 IEEE International Ultrasonics Symposium (IUS) 807-810 (2019)
https://ieeexplore.ieee.org/document/8926015/

Quantitative analysis of the direct piezoelectric response of bismuth ferrite films by scanning probe microscopy
K. Kariya, T. Yoshimura, K. Ujimoto, N. Fujimura
Scientific Reports 9, 19727 (2019)
https://doi.org/10.1038/s41598-019-56261-w

Fabrication of chemical composition controlled YbFe2O4 epitaxial thin films
J. Tanaka, K. Miura, D. Kiriya, T. Yoshimura, A. Ashida, N. Fujimura
Jpn. J. Appl. Phys.  58, SLLB11 (2019)
https://doi.org/10.7567/1347-4065/ab3959

Piezoelectric energy harvesting from AC current-carrying wire
T. Yoshimura, K.Izumi, Y. Ueno, T. Minami, S. Murakami, N. Fujimura
Jpn. J. Appl. Phys. 58, SLLD10 (2019)
https://doi.org/10.7567/1347-4065/ab3e57

●The effect of small amount of oxygen during deposition on structural changes in sputtered HfO2-based films
K. Takada, Y. Saho, T. Yoshimura, N. Fujimura
Jpn. J. Appl. Phys. 58, SLLB03 (2019)
https://doi.org/10.7567/1347-4065/ab37cb

●Electronic Structure Mosaicity of Monolayer Transition Metal Dichalcogenides by Spontaneous Pattern Formation of Donor Molecules
H. Ichimiya, M. Takinoue, A. Fukui, T. Yoshimura, A. Ashida, N. Fujimura, D. Kiriya
ACS Appl. Mater. Interfaces, 11 (17), pp 15922–15926 (2019)
https://pubs.acs.org/doi/10.1021/acsami.9b03367

●Solvent engineering for strong photoluminescence enhancement of monolayer molybdenum disulfide in redox-active molecular treatment
H. Ichimiya, A. Fukui, Y. Aoki, Y. Yamada, T. Yoshimura, A. Ashida, N. Fujimura, D. Kiriya
Applied Physics Express, Volume 12, Number 5,051014,1-5 (2019)
https://iopscience.iop.org/article/10.7567/1882-0786/ab1544

●Electromechanical characteristics of piezoelectric vibration energy harvester with 2-degree-of-freedom system
Masaaki Aramaki, Takeshi Yoshimura, Shuichi Murakami, Kensuke Kanda, and Norifumi Fujimura
Appl. Phys. Lett. 114, 133902,1-4 (2019)
https://doi.org/10.1063/1.5093956

●Demonstration of high-performance piezoelectric MEMS vibration energy harvester using BiFeO3 film with improved electromechanical coupling factor
Masaaki Aramaki, Takeshi Yoshimura, Shuichi Murakami, Kazuo Satoh, Norifumi Fujimura
Sensors and Actuators A: Physical, Volume 291, 167-173,(2019)
https://doi.org/10.1016/j.sna.2019.03.050

●InAs FinFETs Performance Enhancement by Superacid Surface Treatment
Y. Zeng, S. Khandelwai, K. F. Shariar, Z. Wang, G. Lin, Q. Cheng, P. Cui, R. Opila, G. Balakrishnan, S. Addamane, P. Taheri, D. Kiriya, M. Hettick, A. Javey
IEEE Transactions on Electron Devices,66,4,1856-1861(2019)
https://ieeexplore.ieee.org/document/8663608/authors

Journal Papers 2018

●Flexible Electronics Toward Wearable Sensing
W. Gao, H. Ota, D. Kiriya, K. Takei, A. Javey
Acc. Chem. Res(2019)
https://pubs.acs.org/doi/10.1021/acs.accounts.8b00500

●Systematic Study of Photoluminescence Enhancement in Monolayer Molybdenum Disulfide by Acid Treatment
Daisuke Kiriya, Yuh Hijikata, Jenny Pirillo, Ryo Kitaura, Akihito Murai, Atsushi Ashida, Takeshi Yoshimura, Norifumi Fujimura
Langmuir, 34, 10234-10249 (2018)
https://pubs.acs.org/doi/pdfplus/10.1021/acs.langmuir.8b01425

●Fabrication and characterization of (Ba,La)SnO3 semiconducting epitaxial films on (111) and (001) SrTiO3 substrates
Kohei Miura, Daisuke Kiriya, Takeshi Yoshimura, Atsushi Ashida, and Norifumi Fujimura
Physica Status Solidi A,1700800,1-7(2018)
https://onlinelibrary.wiley.com/doi/epdf/10.1002/pssa.201700800

●Reaction of N,N’-dimethylformamide and divalent viologen molecule to generate an organic dopant for molybdenum disulfide
Akito Fukui, Kohei Miura, Hisashi Ichimiya, Akihiro Tsurusaki, Kento Kariya, Takeshi Yoshimura, Atsushi Ashida, Norifumi Fujimura, and Daisuke Kiriya
AIP Advances, 8, 055313, 1-7(2018)
https://aip.scitation.org/doi/full/10.1063/1.5029315

●Investigation of mechanical nonlinear effect in piezoelectric MEMS vibration energy harvesters
Masaaki Aramaki, Kyohei Izumi, Takeshi Yoshimura, Shuichi Murakami, Kazuo Satoh, Kensuke Kanda, and Norifumi Fujimura
Japanese Journal of Applied Physics Volume 57, 11S,11UD03,1-4 (2018)
http://iopscience.iop.org/article/10.7567/JJAP.57.11UD03/pdf

●Direct piezoelectric response in vinylidene fluoride–trifluoroethylene copolymer films
Yuji Matsushita, Izuru Kanagawa, Takeshi Yoshimura and Norifumi Fujimura
Japanese Journal of Applied Physics, Volume 57, Number 11S ,11UG01,1-4(2018)
http://iopscience.iop.org/article/10.7567/JJAP.57.11UG01

●The effect of crystal distortion and domain structure on piezoelectric properties of BiFeO3 thin films
Naoki Okamoto, Kento Kariya, Takeshi Yoshimura, and Norifumi Fujimura
Japanese Journal of Applied Physics Volume 57, 11S,11UF07,1-4 (2018)
http://iopscience.iop.org/article/10.7567/JJAP.57.11UF07

●Tuning Transition-Metal Dichalcogenide Field-Effect Transistors by Spontaneous Pattern Formation of
an Ultrathin Molecular Dopant Film
Hisashi Ichimiya, Masahiro Takinoue, Akito Fukui, Kohei Miura, Takeshi Yoshimura, Atsushi Ashida,
Norifumi Fujimura and Daisuke Kiriya
ACS Nano, 12, 10, 10123-10129(2018)
https://pubs.acs.org/doi/abs/10.1021/acsnano.8b04914

●Fabrication of Y Doped HfO2 Epitaxial Films Directly on (001)Si Substrate
Daiki KAMADA,Kenshi TAKADA,Takeshi YOSHIMURA,and Norifumi FUJIMURA
材料(Journal of the Society of Materials Science, Japan),Vol. 67,No. 9, pp. 844-848(2018)
https://www.jstage.jst.go.jp/article/jsms/67/9/67_844/_pdf

●Characterization of piezoelectric MEMS vibration energy harvesters using random vibration
Shuichi Murakami, Takeshi Yoshimura, Yusuke Kanaoka, Kazuki Tsuda, Kazuo Satoh, Kensuke Kanda, and Norifumi Fujimura
Japanese Journal of Applied Physics 57, 11UD10 (2018)
http://iopscience.iop.org/article/10.7567/JJAP.57.11UD10/meta

 

Academic book
●Chapter 11 Microenergy harvesting using BiFeO3 films
Takeshi Yoshimura
Nanoscale Ferroelectric-Multiferroic Materials for Energy Harvesting Applications,ELSEVIER(2018)

Journal Papers 2017

●Crystallographic polarity effect of ZnO on thin film growth of pentacene
Tatsuru Nakamura, Takahiro Nagata, Ryoma Hayakawa, Takeshi Yoshimura, Seungjun Oh,
Nobuya Hiroshiba, Toyohiro Chikyow, Norifumi Fujimura and Yutaka Wakayama
Japanese Journal of Applied Physics, Volume 56, Number 4S (2017)
http://iopscience.iop.org/article/10.7567/JJAP.56.04CJ03/meta

●Growth and ferroelectric properties of La and Al codoped BiFeO3 epitaxial films
Hirokazu Izumi,Takeshi Yoshimura,Norifumi Fujimura
Journal of Applied Physics 121, 174102 (2017)
http://aip.scitation.org/doi/10.1063/1.4982909

●Strain Dependent Electronic Structure and Band Offset Tuning at Heterointerfaces
of ASnO3 (A=Ca, Sr, and Ba) and SrTiO3
John D. Baniecki, Takashi Yamazaki, Dan Ricinschi, Quentin Van Overmeere,
Hiroyuki Aso, Yusuke Miyata, Hiroaki Yamada, Norifumi Fujimura, Ronald Maran,
Toshihisa Anazawa, Nagarajan Valanoor & Yoshihiko Imanaka
Scientific Reports 7,41725 (2017)
https://www.researchgate.net/publication/313732519

●Photoelectron spectroscopic study on monolayer pentacene thin film/ polar ZnO
single crystal hybrid interface
Takahiro Nagata, Tatsuru Nakamura, Ryoma Hayakawa, Takeshi Yoshimura,
Seungjun Oh, Nobuya Hiroshiba, Toyohiro Chikyow, Norifumi Fujimura,
andYutaka Wakayama
Applied Physics Express, 10, 025702 1-4(2017)
http://iopscience.iop.org/article/10.7567/APEX.10.025702

●Development of piezoelectric bistable energy harvester based on buckled beam with axially
constrained end condition for human motion
Ali M. Eltanany, Takeshi Yoshimura, Norifumi Fujimura, Mohamed R. Ebied and Mohamed G. S. Ali
Japanese Journal of Applied Physics, Volume 56, Number 10S (2017)
http://iopscience.iop.org/article/10.7567/JJAP.56.10PD02

●Origin of the photoinduced current of strongly correlated YMnO3 ferroelectric epitaxial films
Kohei Miura, Lejun Zhang, Daisuke Kiriya, Atsushi Ashida, Takeshi Yoshimura and Norifumi Fujimura
Japanese Journal of Applied Physics, Volume 56, Number 10S (2017)
https://doi.org/10.7567/JJAP.56.10PB08

●Ultrafast dynamics of coherent optical phonon correlated with the antiferromagnetic transition
in a hexagonal YMnO3 epitaxial film
Takayuki Hasegawa, Norifumi Fujimura, and Masaaki Nakayama
Appl. Phys. Lett. 111, 192901 (2017)
https://doi.org/10.1063/1.5003269

 

Academic book

●非鉛強誘電体薄膜を用いた圧電MEMS振動発電
Takeshi Yoshimura, Norifumi Fujimura
ケミカルエンジニヤリング, 2018(VOL.63 No.1)

Journal Papers 2016

●General Thermal Texturization Process of MoS2 for Efficient Electrocatalytic
Hydrogen Evolution Reaction
D.Kiriya,P.Lobaccaro, H. Y. Y. Nyein, P. Taheri, M. Hettick, H. Shiraki, C. M. Sutter-Fella,
P. Zhao, W. Gao, R. Maboudian, J. W. Ager, A. Javey
Nano Letters, 16, 4047-4053 (2016)
http://pubs.acs.org/doi/abs/10.1021/acs.nanolett.6b00569

●Superacid passivation of crystalline silicon surfaces
J.Bullock, D. Kiriya, N. Grant, A. A. Zacatzi, M. Hettick, T. Kho, P. Phang,
H. C. Sio, D. Yan, D. Macdonald, R. M. Wallace, A. Cuevas, A. Javey
ACS Applied Materials Interfaces, 8, 24205-24211 (2016)
http://pubs.acs.org/doi/abs/10.1021/acsami.6b07822

High Luminescence Efficiency in MoS2 Grown by Chemical Vapor Deposition
M.Amani, R. A. Burke, X. Ji, P. Zhao, D.-H. Lien, P. Taheri, G. H. Ahn,
D. Kiriya, J. W. Ager III, E.
ablonovitch, J. Kong, M. Dubey, A. Javey
ACS Nano. 10, 6535-6541 (2016)
http://pubs.acs.org/doi/abs/10.1021/acsnano.6b03443

High efficiency piezoelectric MEMS vibration energy harvesters using
(100) oriented BiFeO3 Films
M.Aramaki, K. Izumi, T. Yoshimura, S. Murakami, and N. Fujimura
Proc. of the 30th IEEE International Conference on Micro Electro Mechanical Systems, 829-832 (2016)

Control of native acceptor density in epitaxial Cu2O thin films grown by electrochemical deposition
Atsushi Ashida, Shunsuke Sato, Takeshi Yoshimura, Norifumi Fujimura,
Journal of Crystal Growth, in press
https://doi.org/10.1016/j.jcrysgro.2016.11.023

●Ferroelectric properties of (Pb,La)(Zr,Ti)O3 capacitors employing Al-doped ZnO top electrodes
prepared by pulsed laser deposition under different oxygen pressures
Y.Takada, N. Okamoto, T. Saito, K. Kondo, T. Yoshimura, N. Fujimura, K. Higuchi and A. Kitajima
Japanese Journal of Applied Physics, 55, 06JB04(2016)
https://www.researchgate.net/publication/303595631

●Al: ZnO Top Electrodes Deposited with Various Oxygen Pressures for Ferroelectric
(Pb, La)(Zr,Ti)O3 Capacitors
Y.Takada, N. Okamoto, T. Saito, K. Kondo, T. Yoshimura, N. Fujimura, K. Higuchi and A. Kitajima
Electronics Letters, 52, 230−232 (2016)
https://www.researchgate.net/publication/287801699

●Fabrication of Doped Pb(Zr,Ti)O3 Capacitors on Pt Substrates with Different Orientations
R.Tamano, T. Amano, Y. Takada, N. Okamoto, T. Saito, T. Yoshimura, N. Fujimura, K. Higuchi and A. Kitajima
Electronics Letters, 52 (16), 1399-1401 (2016)
https://www.researchgate.net/publication/303982232

●Evaluatioion of Deuterium ion Profile in (Pb,La)(Zr,Ti)O3 Capacitors Structures with Conductive Oxide Top Electrode by Time of Flight Secondary Ion Mass Spectrometry
Y. Takada, R. Tamano, N. Okamoto, T. Saito, T. Yoshimura, N. Fujimura, K. Higuchi, A. Kitajima
and R. Shishido
Proc. 2016 IEEE ISAF/ECAPD/PFM, 1−4 (2016).

●Comparative Study of Ferroelectric (K,Na)NbO3 Thin Films Pulsed Laser Deposition on Platinum Substrates with Different Orientation
R.Tamano, Y. Takada, N. Okamoto. T. Saito, K. Higuchi, A. Kitajima, T. Yoshimura, and N. Fujimura
Proc. 2016 IEEE ISAF/ECAPD/PFM, 1−4 (2016)
http://ieeexplore.ieee.org/document/7578063/

●Comparative Study of Hydrogen – and Deuterium – induced Degradation of Ferroelectric (Pb,La)(Zr,Ti)O3 Capacitors Using Time of Flight Secondary Ion Measurement
Y.Takada, N. Okamoto, T. Saito, T. Yoshimura, N. Fujimura, K. Higuchi, A. Kitajima, and R. Shishido
IEEE Trans. Ultrason. Ferroelectr. Freq. Control, 63, 1668-1673 (2016)
http://ieeexplore.ieee.org/document/7524024/

●Thickness dependence of piezoelectric properties of BiFeO3 films fabricated using rf magnetron sputtering system
Masaaki Aramaki, Kento Kariya, Takeshi Yoshimura, Shuichi Murakami, and Norifumi Fujimura
Japanese Journal of Applied Physics 55, 10TA16 (2016)
http://doi.org/10.7567/JJAP.55.10TA16

●Effects of (Bi1/2,Na1/2)TiO3 on the electrical properties of BiFeO3-based thin films
Jin Hong Choi, Takeshi Yoshimura, and Norifumi Fujimura
Japanese Journal of Applied Physics 55, 10TA17 (2016)
http://doi.org/10.7567/JJAP.55.10TA17

●Direct measurements of electrocaloric effect in ferroelectrics using thin-film thermocouples
Yuji Matsushita, Atsushi Nochida, Takeshi Yoshimura, and Norifumi Fujimura
Japanese Journal of Applied Physics 55, 10TB04 (2016)
http://doi.org/10.7567/JJAP.55.10TB04

●Large enhancement of positive magnetoresistance by Ce doping in Si epitaxial thin films
Yusuke Miyata, Kazuya Ueno, Yoshihiko Togawa, Takeshi Yoshimura, Atsushi Ashida, and Norifumi Fujimura
Applied Physics Letters 109, 112101 (2016)
http://dx.doi.org/10.1063/1.4962393

●Fabrication of (Ba,La)SnO3  Films on (111) SrTiO3  Substrate
Kohei MIURA,Ryo KASHIMOTO,Takeshi YOSHIMURA,Atsushi ASHIDA,Norifumi FUJIMURA
Journal of the Society of Materials Science, Japan Vol.65,No.9,pp638-641(2016)
https://www.jstage.jst.go.jp/article/jsms/65/9/65_638/_pdf

●Lowering the growth temperature of strongly-correlated YbFe2O4 thin films prepared by pulsed laser deposition
Ryo Kashimoto, Takeshi Yoshimura, Atsushi Ashida, Norifumi Fujimura
Thin Solid Films 614, 44-46 (2016)
http://dx.doi.org/10.1016/j.tsf.2016.04.044

●Low temperature formation of highly resistive ZnO films using nonequilibrium N2/O2 plasma generated near atmospheric pressure
Yukinori Nose, Takeshi Yoshimura, Atsushi Ashida, Tsuyoshi Uehara, Norifumi Fujimura
Thin Solid Films 616, 415-418 (2016)
http://dx.doi.org/10.1016/j.tsf.2016.09.009

●Novel chemical vapor deposition process of ZnO films using nonequilibrium N2 plasma
generated near atmospheric pressure with small amount of O2 below 1%
Yukinori Nose, Takeshi Yoshimura, Atsushi Ashida, Tsuyoshi Uehara, and Norifumi Fujimura
Journal of Applied Physics 119, 175302 (2016)
http://dx.doi.org/10.1063/1.4948326

●Low-voltage operation of Si-based ferroelectric field effect transistors using organic ferroelectrics, poly(vinylidene fluoride–trifluoroethylene), as a gate dielectric
Yusuke Miyata, Takeshi Yoshimura, Atsushi Ashida, and Norifumi Fujimura
Japanese Journal of Applied Physics 55, 04EE04 (2016)
http://doi.org/10.7567/JJAP.55.04EE04

●Reliability of the properties of (Pb,La)(Zr,Ti)O3 capacitors with non–noble metal oxide electrodes stored in an H2 atmosphere
Takada, N. Okamoto, T. Saito, K. Kondo, T. Yoshimura, N. Fujimura, K. Higuchi, A. Kitajima, and R. Shishido
MRS Advances 1, 369−374 (2016)
https://www.researchgate.net/publication/295848348

 

Academic book

Novel Ferroelectric-Gate Field-Effect Thin Film Transistors (FeTFTs): Controlled Polarization-Type FeTFTs
Norifumi Fujimura, Takeshi Yoshimura
Topics in Applied Physics 131, Ferroelectric-Gate Field Effect Transistor Memories, 111-138(2016)

http://dx.doi.org/10.1007/978-94-024-0841-6_6

 

Journal Papers 2015

●Interface energetics and atomic structure of epitaxial La1−xSrxCoO3 on Nb:SrTiO3
Quentin Van Overmeere,John D. Baniecki,Takashi Yamazaki,Dan Ricinschi,Hiroyuki Aso,Yusuke Miyata,Hiroaki Yamada,Norifumi Fujimura,Yuji Kataoka,Yoshihiko Imanaka
Appl. Phys. Lett. 106, 241602 (2015)
http://aip.scitation.org/doi/full/10.1063/1.4922880

●Effect of excess Pb on ferroelectric characteristics of conductive Al-dopect ZnO and Sn-doped In2O3 top electrodes in PbLaZrTiOx capacitors
Y. Takada, T. Tsuji, N. Okamoto, T. Saito, K. Kondo, T. Yoshimura, N. Fujimura, K. Higuchi, A. Kitajima, and A. Oshima
International Journal of Materials Research, 106, 83-87 (2015).
http://www.hanser-elibrary.com/doi/abs/10.3139/146.111154

●Effect of Al-doped ZnO or Sn-doped In2O3 electrode on ferroelectric properties of (Pb,La)(Zr,Ti)O3 capacitors
Y.Takada, T. Tsuji, N. Okamoto, T. Saito, K. Kondo, T. Yoshimura, N. Fujimura, K. Higuchi, A. Kitajima and H. Iwai
Japanese Journal of Applied Physics, 54, 05ED03 1-6 (2015).
http://iopscience.iop.org/article/10.7567/JJAP.54.05ED03/meta

●Enhancement of piezoelectric properties of BiFeO3 films for vibration energy harvesting
T.Yoshimura, K. Kariya, N. Fujimura, and S. Murakami
Proc. of the Seventeenth US-Japan Seminar on Dielectric and Piezoelectric Ceramics, C-P-15 (2015)

●Direct measurement of electrocaloric effect in barium titanate thin films
Y.Matsushita, T. Yoshimura and N. Fujimura Proc. of The Seventeenth US-Japan Seminar on Dielectric and Piezoelectric Ceramics, C-P-04 (2015).

●Piezoelectric MEMS vibrational energy harvester using BiFeO3 films
T.Yoshimura, S. Murakami, K. Kariya, and N. Fujimura
Proc. of the 32nd International Japan-Korea Seminar on Ceramic, PL-1 (2015).

●Direct measurement of the electrocaloric effect in ferroelectrics using thin film thermocouple Y.Matsushita, T. Yoshimura, and N. Fujimura
Proc. of the 32nd International Japan-Korea Seminar on Ceramic, EL-12 (2015).
http://iopscience.iop.org/article/10.7567/JJAP.55.10TB04/pdf

●Effect of Al-doped ZnO or Sn-doped In2O3 electrode on ferroelectric properties of (Pb,La)(Zr,Ti)O3 capacitors
Y.Takada, T. Tsuji, N. Okamoto, T. Saito, K. Kondo, T. Yoshimura, N. Fujimura, K. Higuchi, A. Kitajima, and H. Iwai
Japanese Journal of Applied Physics 54, 05ED03 1-6 (2015).
http://iopscience.iop.org/article/10.7567/JJAP.54.05ED03/meta

●Hydrogen profile measurement of (Pb,La)(Zr,Ti)O3 capacitor with conductive electrode after hydrogen annealing
Y.Takada, N. Okamoto, T. Saito, K. Kondo, T. Yoshimura, N. Fujimura, K. Higuchi, A. Kitajima, H. Iwai, and R. Shishido
Proc. 2015 IEEE ISAF/ISIF/PFM, 163−166 (2015).
http://ieeexplore.ieee.org/document/7172695/

●Growth and characterization of (1 − x)BiFeO3x(Bi0.5,K0.5)TiO3 thin films
Jin Hong Choi, Takeshi Yoshimura and Norifumi Fujimura
Japanese Journal of Applied Physics 54, 10NA14 (2015)
http://dx.doi.org/10.7567/JJAP.54.10NA14

●Theoretical analysis of linear and nonlinear piezoelectric vibrational energy harvesters for human walking
Ali M. Eltanany, Takeshi Yoshimura1, Norifumi Fujimura, Nour Z. Elsayed, Mohamed R. Ebied, and Mohamed G. S. Ali
Japanese Journal of Applied Physics 54, 10ND02 (2015)
http://dx.doi.org/10.7567/JJAP.54.10ND02

●Evaluation of the electronic states in highly Ce doped Si films grown by low temperature molecular beam epitaxy system
Yusuke Miyata, Yukinori Nose, Takeshi Yoshimura, Atsushi Ashida, Norifumi Fujimura
J. Crystal Growth 425.158-161(2015)
http://dx.doi.org/10.1016/j.jcrysgro.2015.03.013

●Effects of polarization of polar semiconductor on electrical properties of poly(vinylidene fluoride-trifluoroethylene)/ZnO heterostructures
H. Yamada, T. Yoshimura and N. Fujimura
Journal of Applied Physics 117, 234101 (2015)
http://dx.doi.org/10.1063/1.4922668

 

Academic Book

●Recent Design and Application of Energy Harvesting
Takeshi Yoshimura(Participation writing)
エレクトロニクスシリーズ,シーエムシー出版(2015).
https://www.cmcbooks.co.jp/products/detail.php?product_id=4965

Journal Papers 2014

●Output power of piezoelectric MEMS vibration energy harvesters under random oscillations
K Kariya, T Yoshimura, S Murakami and N Fujimura
Journal of Physics: Conference Series 557 (2014) 012101
http://dx.doi.org/10.1088/1742-6596/557/1/012101

●Piezoelectric properties of (100) orientated BiFeO3 thin films on LaNiO3
Kento Kariya, Takeshi Yoshimura, Shuichi Murakami, and Norifumi Fujimura
Japanese Journal of Applied Physics 53(2014) 08NB02
http://dx.doi.org/10.7567/JJAP.53.08NB02

●Enhancement of piezoelectric properties of (100)-orientated BiFeO3 films on (100)LaNiO3/Si
Kento Kariya, Takeshi Yoshimura, Shuichi Murakami, and Norifumi Fujimura
Japanese Journal of Applied Physics 53(2014)09PA14
http://dx.doi.org/10.7567/JJAP.53.09PA14

●Improved reliability properties of (Pb,La) (Zr,Ti)O3 ferroelectric capacitors by thin aluminium-doped zinc oxide buffer layer
Y.Takada, T.Tsuji,N. Okamoto,T. Saito ,K. Kondo,T.Yoshimura, N.Fujimura,  K.Higuchi, A.Kitajima
Electronics Letters Vol.50,Issue11(2014)799-801
http://dx.doi.org/10.1049/el.2014.0187

●Near-surface structure of polar ZnO surfaces prepared by pulsed laser deposition
T. Nakamura, T. Yoshimura, A. Ashida, N. Fujimura
Thin Solid Films, 559(May 2014)88–91
http://dx.doi.org/10.1016/j.tsf.2013.11.065

●Aluminum-doped zinc oxide electrode for robust (Pb,La)(Zr,Ti)O3 capacitors: effect of oxide insulator encapsulation and oxide buffer layer
Yoko Takada,Toru Tsuji,Naoki Okamoto,Takeyasu Saito,Kazuo Kondo,Takeshi Yoshimura,Norifumi Fujimura,Koji Higuchi,Akira Kitajima,Akihiro Oshima
Journal of Materials Science: Materials in Electronics 25(May 2014)2155-2161
http://dx.doi.org/10.1007/s10854-014-1853-y

●Correlation between the intra-atomic Mn3+ photoluminescence and antiferromagnetic transition in an YMnO3 epitaxial film
Masaaki Nakayama, Yoshiaki Furukawa, Kazuhiro Maeda, Takeshi Yoshimura, Hiroshi Uga, and Norifumi Fujimura
Applied Physics Express 7(Feb2014)023002
http://dx.doi.org/10.7567/APEX.7.023002

●Crystal structure and local piezoelectric properties of strain-controlled (001) BiFeO3 epitaxial thin films
K. Ujimoto, T. Yoshimura, K. Wakazono,A. Ashida,N. Fujimura
Thin Solid Films 550(Jan 2014)738-741
http://dx.doi.org/10.1016/j.tsf.2013.10.178

Journal Papers 2013

●Near-surface structure of polar ZnO surfaces prepared by pulsed laser deposition
T.Nakamura, T. Yoshimura, A. Ashida, N. Fujimura
Thin Solid Films available online 20 Nov.2013.
http://www.sciencedirect.com/science/article/pii/S0040609013019184

●Crystal structure and local piezoelectric properties of strain-controlled (001) BiFeO3 epitaxial thin films
K.Ujimoto, T. Yoshimura, K. Wakazono, A. Ashida, N. Fujimura
Thin Solid Films, 550, 738-741 (2014).
http://www.sciencedirect.com/science/article/pii/S0040609013018117

●Correlation between the intra-atomic Mn3+ photoluminescence and antiferromagnetic transition in an YMnO3 epitaxial film
M.Nakayama, Y. Furukawa, K. Maeda, T. Yoshimura, H. Uga, N. Fujimura
Applied Physics Express, 7, 023002 (2014).
Spotlight paper.
https://www.researchgate.net/publication/274002743

●Aluminum-doped zinc oxide electrode for robust (Pb,La)(Zr,Ti)O3 capacitors: effect of oxide insulator encapsulation and oxide buffer layer
Yoko Takada, Toru Tsuji, Naoki Okamoto, Takeyasu Saito, Kazuo Kondo, Takeshi Yoshimura, Norifumi Fujimura, Koji Higuchi, Akira Kitajima, Akihiro Oshima
Journal of Materials Science: Materials in Electronics , 25, 2155-2161 (2014).
https://www.researchgate.net/publication/261409625

●Development of piezoelectric MEMS vibration energy harvester using (100) oriented BiFeO3 ferroelectric film
S Murakami, T Yoshimura, K Satoh, K Wakazono, K Kariya and N Fujimura
Journal of Physics:Conference Series 476(2013)012007
http://dx.doi.org/10.1088/1742-6596/476/1/012007

●Enhancement of Direct Piezoelectric Properties of Domain-Engineered(100)BiFeO3 Films
Takeshi Yshimura,Katsuya Ujimoto,Yusaku Kawahara,keisuke Wakazono,Kento Kariya,Norifumi Fujimura,Syuichi Murakami
Japanese Journal of Applied Physics, 52 (Sep2013)09KA03
http://dx.doi.org/10.7567/JJAP.52.09KA03

●High-concentration Rare Earth Ion Doping to Si Using Reconstructed Surface Structure
Yusuke MIYATA,Yoshitaka OKUYAMA and Norifumi FUJIMURA
Journal of smart processing.2(2013)219-223
http://dx.doi.org/10.7791/jspmee.2.219

●Comparative study of electrical properties of PbLaZrTiOx capacitors with Al-doped ZnO and ITO top electrodes
Y. Takada, T. Tsuji, N. Okamoto, T. Saito, K. Kondo, T. Yoshimura, N. Fujimura, K. Higuchi, A. Kitajima, A. Oshima
2013 Joint IEEE International Symposium on Applications of Ferroelectric and Workshop on Piezoresponse Force Microscopy, ISAF/PFM 2013
6748710(July 2013) 360-362
http://dx.doi.org/10.1109/ISAF.2013.6748710

●Electrical properties of PbLaZrTiOx capacitors with conductive oxide buffer layer on Pt electrodes
T. Saito, Y. Takada, T. Tsuji, N. Okamoto, K. Kondo, T. Yoshimura, N. Fujimura, K. Higuchi, A. Kitajima, A. Oshima
2013 Joint IEEE International Symposium on Applications of Ferroelectric and Workshop on Piezoresponse Force Microscopy, ISAF/PFM 2013
6748734(July 2013)205-207
http://dx.doi.org/10.1109/ISAF.2013.6748734

●Fabrication and Electric Properties of Ferroelectric-Gate Thin Film Transistors with Nano-Channel
Yuhei Nomura ,Takeshi Yoshimura,Norifumi Fujimura
J.Vac.Soc.Jpn.56(Jun2013) 172-175
http://dx.doi.org/10.3131/jvsj2.56.172

●Piezoelectric Vibrational Energy Harvester Using Lead-Free Ferroelectric BiFeO3 Films
Takeshi Yoshimura,Shuichi Murakami,Keisuke Wakazono,Kento Kariya,Norifumi Fujimura
Appl. Phys. Express,6(May2013) 051501
http://dx.doi.org/10.7567/APEX.6.051501

●Effect of Target Surface Microstructure on Morphological and Electrical Properties of Pulsed-Laser-Deposited BiFeO3 Epitaxial Thin Films
Katsuya Ujimoto,Takeshi Yoshimura,Atsushi Ashida,Norifumi Fujimura
Japanese Journal of Applied Physics, 52(Apr 2013) 045803
http://dx.doi.org/10.7567/JJAP.52.045803

●Effects of La substitution for BiFeO3 epitaxial thin films
K.Wakazono,Y. Kawahara,K. Ujimoto,T. Yoshimura, N. Fujimura
Journal of the Korean Physical Society ,62(Apr 2013)1069-1072
http://dx.doi.org/10.3938/jkps.62.1069

●Effect of the annealing temperature of P(VDF/TrFE) thin films on their ferroelectric properties
Yoshiki Yachi,Takeshi Yoshimura,Norifumi Fujimura
Journal of the Korean Physical Society,62 (Apr 2013) 1065-1068
http://dx.doi.org/10.3938/jkps.62.1065

●Field Effect of Magnetic Semiconductor Si:Ce Thin Films Using Organic Ferroelectrics
Yusuke Miyata,Hiroshi Takata,Yoshitaka Okuyama,Takeshi Yoshimura,Norifumi Fujimura
J.Vac.Soc.Jpn.56(Apr 2013)136-138
http://dx.doi.org/10.3131/jvsj2.56.136

●Orientation Control of ZnO Films Deposited Using Nonequilibrium Atmospheric Pressure N2/O2 Plasma
Yukinori Nose,Tatsuru Nakamura,Takeshi Yoshimura,Atsushi Ashida,Tsuyoshi Uehara,Norifumi Fujimura
Japanese Journal of Applied Physics, 52(Jan 2013) 01AC03
http://dx.doi.org/10.7567/JJAP.52.01AC03

Journal Papers 2012

●Local pH control by electrolysis for ZnO epitaxial deposition on a Pt cathode
S.Yagi, Y. Kondo, Y. Satake, A. Ashida, N. Fujimura
Electrochimica Acta, 62, 348–353 (2012).
https://www.researchgate.net/publication/256696723

●Direct piezoelectric properties of (100) and (111) BiFeO3 epitaxial thin films
K.Ujimoto, T. Yoshimura, A. Ashida, N. Fujimura
Appl. Phys. Lett., 100, 102901 1-3 (2012).
http://aip.scitation.org/doi/10.1063/1.3692579

●Electrical properties of sol-gel derived PbLaZrTiOx capacitors with nonnoble metal oxide top electrodes
Yoko Takada,Toru Tsuji,Naoki Okamoto,Takeyasu Saito,K. Kondo,Takeshi Yoshimura,Norifumi Fujimura,Koji Higuchi,Akira Kitajima,andAkihiro Oshima
ECS Transactions,50(2012)43-48
http://dx.doi.org/doi:10.1149/05034.0043ecst

●Direct piezoelectric properties of (100) and (111) BiFeO3 epitaxial thin films
K. Ujimoto, T. Yoshimura, A. Ashida and N. Fujimura
Applied Physics Letters, 100(2012) 102901
http://dx.doi.org/10.1063/1.3692579

●Electronic transport in organic ferroelectric gate field-effect transistors with ZnO channel
H. Yamada, T. Yoshimura, N. Fujimura
Mater. Res.Soc. Symp. Proc., 1430 (2012)  mrss12-1430-e04-08
http://dx.doi.org/10.1557/opl.2012.900

●Low Temperature Growth of ZnO Thin Films by Non Equilibrium Atmospheric Pressure N2/O2 Plasma
and The Growth Morphology of the Films
Yukinori Nose,Takeshi Yoshimura,Atsushi Ashida,Tsuyoshi Uehara and Norifumi Fujimura
Journal of the Society of Materials Science, Japan,Vol.61,No.9,pp756-759(2012)
http://dx.doi.org/10.2472/jsms.61.756

●Electric Conduction of TiO2 Nanotube Field Effect Transistor Fabricated by Dielectrophoresis
Masayuki Ishii,Masahiro Terauchi,Takeshi Yoshimura,Tadachika Nakayama and Norifumi Fujimura
Journal of the Society of Materials Science, Japan,Vol.61,No.9,pp766-770(2012)
http://dx.doi.org/10.2472/jsms.61.766

●Growth temperature and thickness dependences of crystal and micro domain structures of BiFeO 3 epitaxial films
Katsuya Ujimoto, Takeshi Yoshimura, Norifumi Fujimura
Proceedings of 2012 21st IEEE Int. Symp. on Applications of Ferroelectrics held jointly with 11th IEEE European Conference on the Applications of Polar Dielectrics and IEEE PFM, ISAF/ECAPD/PFM 2012(2012)6297846
http://dx.doi.org/10.1109/ISAF.2012.6297846

●Control of Crystal Structure of BiFeO3 Epitaxial Thin Films by the Growth Condition and the Piezoelectric Properties
Yusaku Kawahara, Katsuya Ujimoto, Takeshi Yoshimura, Norifumi Fujimura
Japanese Journal of Applied Physics,51(2012)09LB04
http://dx.doi.org/10.1143/JJAP.51.09LB04

●Effect of Ferroelectric Polarization on Carrier Transport in Controlled Polarization-Type Ferroelectric Gate Field-Effect Transistors with Poly(vinylidene fluoride–tetrafluoroethylene)/ZnO Heterostructure
Hiroaki Yamada, Takeshi Yoshimura , Norifumi Fujimura
Japanese Journal of Applied Physics,51(2012) 11PB01
http://dx.doi.org/10.1143/JJAP.51.11PB01

●Investigation of Gas Sensing Characteristics of TiO2 Nanotube Field-Effect Transistor
Masayuki Ishii, Masahiro Terauchi, Takeshi Yoshimura, Tadachika Nakayama, Norifumi Fujimura
Japanese Journal of Applied Physics,51(2012)11PE10
http://dx.doi.org/10.1143/JJAP.51.11PE10

●Local pH control by electrolysis for ZnO epitaxial deposition on a Pt cathode
Shunsuke Yagi,Yusuke Kondo,Yuichi Satake,Atsushi Ashida,Norifumi Fujimura
Electrochimica Acta 62(Feb2012)348–353
http://dx.doi.org/10.1016/j.electacta.2011.12.059

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