九州大学大学院総合理工学府量子プロセス理工学専攻吉武研究室，Yoshitake Laboratory, Department of Applied Science for Electronics and Materials, Kyushu University, キーワード：薄膜，太陽電池，ナノ微結晶ダイヤモンド，鉄シリサイド，Fe-Si系人工格子，スピントロニクス，レーザーアブレーション，スパッタリング，同軸型アークプラズマガン，吸収端近傍X線吸収微細構造，X線光電子分光，keywords: ph

2020

Eslam Abubakr, Abdelrahman Zkria, Shinya Ohmagari, Yu̅ki Katamune, Hiroshi Ikenoue, and Tsuyoshi Yoshitake
Laser-Induced Phosphorus-Doped Conductive Layer Formation on Single-crystal Diamond Surfaces
ACS Applied Materials & Interfaces, 12 (2020) pp. 57619-57626
DOI: 10.1021/acsami.0c18435

Mahmoud SHABAN, Abdelrahman ZKRIA, and Tsuyoshi YOSHITAKE
Temperature-Dependent Impedance Spectra of Nitrogen-Doped Ultrananocrystalline Diamond Films Grown on Si Substrates
IEEE Access, inpress
DOI: 10.1109/ACCESS.2020.3046969

堺研一郎，奥山哲也，三木弘史，村上秀樹，大曲新矢，吉武剛
高専生のためのスピントロニクス入門－巨大磁気抵抗(GMR)効果とトンネル磁気抵抗(TMR)効果－
久留米高専紀要、第36巻 (2021) 25-28頁

Abdelrahman Zkria, Mohamed Egiza, Ariful Haque, Eslam Abubakr, Jagdish Narayan, and Tsuyoshi Yoshitake
Monitoring laser-induced structural evolution of hydrogenated nanodiamond composite films prepared by coaxial arc plasma deposition
Applied Physics Express, Vol. 13, No. 10 (2020) 105503.
https://iopscience.iop.org/article/10.35848/1882-0786/abb871

Takuya Sakai, Takeru Hamasaki, Kazuki Kudo, Ken-ichiro Sakai, Hiroyuki Deguchi, and Tsuyoshi Yoshitake
Spin-Valve Effects in Fe/N-Doped Carbon/Fe3Si Trilayered Films" by .
JJAP Conf. Proc., Vol. 8 (2020) 011202.
https://doi.org/10.7567/JJAPCP.8.011202

Zkria Abdelrahman, Mahmoud Shaban, Abubakr Eslam, and Tsuyoshi Yoshitake
Impedance spectroscopy analysis of n-type (nitrogen-doped) ultrananocrystalline diamond/p-type Si heterojunction diodes
Physica Scripta, Vol. 95, No. 9 (2020) 095803.
https://doi.org/10.1088/1402-4896/aba97e

Peerasil Charoenyuenyao, Nathaporn Promros, Rawiwan Chaleawpong, Nattakorn Borwornpornmetee, Pattarapol Sittisart, Yūki Tanaka, and Tsuyoshi Yoshitake
Impact of Annealing Temperature and Carbon Doping on the Wetting and Surface Morphology of Semiconducting Iron Disilicide Formed via Radio Frequency Magnetron Sputtering
Thin Solid Films, Vol. 709 (2020) 138248.
https://doi.org/10.1016/j.tsf.2020.138248

Rawiwan Chaleawpong, Nathaporn Promros, Peerasil Charoenyuenyao, Nattakorn Borwornpornmetee, Pattarapol Sittisart, Phongsaphak Sittimart, Yūki Tanaka, Tsuyoshi Yoshitake
Photovoltaic, capacitance-voltage, conductance-voltage, and electrical impedance characteristics of p-type silicon/intrinsic-silicon/n-type semiconducting iron disilicide heterostructures built via facing target direct-current sputtering
Thin Solid Films, Vol. 709, (2020) 138229.
https://doi.org/10.1016/j.tsf.2020.138229

Rawiwan Chaleawpong, Nathaporn Promros, Abdelrahman Zkria, Peerasil Charoenyuenyao, Eslam Abubakr, and Tsuyoshi Yoshitake
Diode parameters and ultraviolet light detection characteristics of n-type silicon/p-type nanocrystalline diamond heterojunctions at different temperatures
Thin Solid Films, Vol. 709 (2020) 138222.
http://doi.org/10.1016/j.tsf.2020.138222

Abdelrahamn Zkria, Eslam Abubakr, Phongsaphak Sittimartt and Tsuyoshi Yoshitake
Analysis of electrical characteristics of Pd/n-nanocarbon/p-Si heterojunction diodes: by C-V-f and G/w-V-f
Journal of Nanomaterials, Vol. 2020, Article ID 4917946, 9 pages, 2020.
https://doi.org/10.1155/2020/4917946.

Ali M. Ali, Mohamed Egiza, Koki Murasawa, Hiroaki Sugita, Tanja Deckert-Gaudig, Volker Deckert, and Tsuyoshi Yoshitake
Influence of adhesion intermediate layers on the stability of nanodiamond composite films deposited on Si substrates by coaxial arc plasma
Applied Physics Express, Vol. 13, No. 6 (2020) 065506.
https://doi.org/10.35848/1882-0786/ab91d1

Takeshi Hara, Hiroki Hashiguchi, Masumi Ogishima, Daisuke Fujimoto, Tsuyoshi Yoshitake
Electrochemical Detection Characteristics of the Composite Films of Boron-doped Nanocrystalline Diamond and Amorphous Carbon Prepared using the Coaxial Arc Plasma Deposition Method
IEEJ Transactions on Electrical and Electronic Engineering, 15: 1121-1122 (2020)
DOI:10.1002/tee.23157

田中佑樹、吉田智博、内田聖也、村澤功基、福井康雄、櫻井正俊、工藤昌輝、鳥山誉亮、吉武　剛
CAPD 法によるナノコンポジット窒化アルミニウム薄膜の合成
九州大学中央分析センター報告、第37号（2019）pp. 18-22.
http://bunseki.kyushu-u.ac.jp/bunseki/centerhoukoku#2019

Ali M. Ali, Tanja Deckert-Gaudig, Mohamed Egiza, Volker Deckertc, and Tsuyoshi Yoshitake
Near- and Far-Field Raman Spectroscopic Studies of Nanodiamond Composite Films Deposited by Coaxial Arc Plasma
Applied Physics Letters, Vol. 116, Issue 4 (2020) 041601.
https://doi.org/10.1063/1.5142198
DOI: 10.1063/1.5142198

2019

Eslam Abubakr, Takuya Sakai, Abdelrahman Zkria, Yūki Katamune, Shinya Ohmagari, Kaname Imokawa, Hiroshi Ikenoue, and Tsuyoshi Yoshitake
Study on electrode formation for spin injection into singlecrystalline diamond
The Institute of Electronics, Information and Communication Engineers (IEICE) Technical Report, MRIS2019-37 (2019-10)

堺研一郎，坂井拓也，石本浩起，田部井哲夫，西嶋雅彦，吉武剛
鉄シリサイド鉄シリサイド材料による新規スピントロニク素子の創製材料による新規スピントロニク素子の創製
電子情報通信学会信学技報，MRIS2019-27 (2019-10)

花島隆泰，鈴木淳市，加倉井和久，宮田登，武田全康，竹市悟志，吉武剛，堺研一郎，出口博之
偏極中性子反射率による[Fe3Si/FeSi2]20人工格子の磁気構造解析
電子情報通信学会信学技報，MRIS2019-24 (2019-10)

TAKESHI HARA, MASAYA ONISHI, TAKUMI TAKENAGA, YUTA INOUE, MASUMI OGISHIMA, DAISUKEFUJIMOTO, TSUYOSHI YOSHITAKE
Characteristics of Electrochemical Electrodes Containing Composite Films of Boron-doped Nanocrystalline Diamond and Amorphous Carbon Prepared using a Coaxial arc Plasma Deposition Method
Journal of the Institute of Industrial Applications Engineers Vol.7, No.3, pp.99-105, (2019)
DOI: 10.12792/JIIAE.7.99

Abdelrahman Zkria, Ariful Haque, Mohamed Egiza, Eslam Abubakr, Koki Murasawa, Tsuyoshi Yoshitake, Jagdish Narayan
Laser-induced structure transition of diamond-like carbon coated on cemented carbide and formation of reduced graphene oxide
MRS Communications, 28 June 2019, pp. 1-6
DOI: https://doi.org/10.1557/mrc.2019.88

Mohamed Egiza, Kouki Murasawa, Ali M. Ali, Yasuo Fukui, Hidenobu Gonda, and Masatoshi Sakurai, and Tsuyoshi Yoshitake
Enhanced hardness of nanocarbon films deposited on cemented tungsten carbide substrates by coaxial arc plasma deposition owing to employing silicon-doped graphite targets
Japanese Journal of Applied Physics, Vol. 58, No. 7, July 2019, 075507.
https://iopscience.iop.org/article/10.7567/1347-4065/ab289f

Ali M. Ali, Mohamed Egiza, Koki Murasawa, Yasuo Fukui, Hidenobu Gonda, Masatoshi Sakurai, and Tsuyoshi Yoshitake
Negative Bias Effects on Deposition and Mechanical Properties of Ultrananocrystalline Diamond/Amorphous Carbon Composite Films Deposited on Cemented Carbide Substrates by Coaxial Arc Plasma
Diamond and Related Materials, Vol. 96, June 2019, pp. 67-73.
https://doi.org/10.1016/j.diamond.2019.04.031

Eslam Abubakr, Abdelrahman Zkria, Yūki Katamune, Shinya Ohmagari, Kaname Imokawa, Hiroshi Ikenoue, and Tsuyoshi Yoshitake
Formation of Low Resistivity Layers on Singlecrystalline Diamond by Excimer Laser Irradiation
Diamond and Related Materials, Vol. 95, May 2019, pp. 166-173.
https://doi.org/10.1016/j.diamond.2019.04.013

Yūki Katamune, Satoshi Takeichi, Ryota Ohtani, Satoshi Koizumi, Eiji Ikenaga, Kazutaka Kamitani, Takeharu Sugiyama, and Tsuyoshi Yoshitake
Electrical properties of boron-incorporated ultrananocrystalline diamond/hydrogenated amorphous carbon composite films
Applied Physics A (2019) 125:295
https://link.springer.com/article/10.1007/s00339-019-2607-8

Rawiwan Chaleawpong, Nathaporn Promros, Peerasil Charoenyuenyao, Takanori Hanada, Shinya Ohmagari, and Tsuyoshi Yoshitake
Temperature Dependence of Alternating Current Impedance in n-Type Si/B-doped p-Type Ultrananocrystalline Diamond Heterojunctions Produced through Pulsed Laser Deposition
Journal of Nanoscience and Nanotechnology, Vol. 19, No. 3, Mar 2019, pp. 1567-1573.
https://doi.org/10.1166/jnn.2019.16232

Peerasil Charoenyuenyao, Nathaporn Promros, Rawiwan Chaleawpong, Bunpot Saekow, Supanit Porntheeraphat, Tsuyoshi Yoshitake
Influence of Annealing Temperature on Mechanical and Wetting Properties of β-FeSi2 Films Built Using Facing-Targets Direct-Current Sputtering
to be published in J. Nanoscience and Nanotechnology

Abdelrahman Zkria, Fouad Abdel-Wahab, Yuki Katamune, Tsuyoshi Yoshitake
Optical and structural characterization of ultrananocrystalline diamond/hydrogenated amorphous carbon composite films deposited via coaxial arc plasma
Curr. Appl. Phys. Vo. 19 (2019) pp. 143-148.
https://doi.org/10.1016/j.cap.2018.11.012

Chaleawpong, Rawiwan; Promros, Nathaporn; Charoenyuenyao, Peerasil; Hanada, Takanori; Ohmagari, Shinya; Zkria, Abdelrahman; Yoshitake, Tsuyoshi
Diode Parameters of Heterojunctions Comprising p-Type Ultrananocrystalline Diamond Films and n-Type Si Substrates
J. Nanosci. Nanotechnol., Vo. 19 (2019) pp. 1567-1573.
https://doi.org/10.1166/jnn.2019.16232

2018

Mohamed Egiza, Hiroshi Naragino, Aki Tominaga, Kenji Hanada, Kazutaka Kamitani, Takeharu Sugiyama, Eiji Ikenaga, Koki Murasawa, Hidenobu Gonda, Masatoshi Sakurai, and Tsuyoshi Yoshitake
Effects of Air Exposure on Hard and Soft X-ray Photoemission Spectra of Ultrananocrystalline Diamond/Amorphous Carbon Composite Films
Coatings 2018, 8(10), 359
https://doi.org/10.3390/coatings8100359

Rawiwan Chaleawpong, Nathaporn Promros, Peerasil Charoenyuenyao, Adison Nopparuchikun, Phongsaphak Sittimart, Tomohiro Nogami, and Tsuyoshi Yoshitake
Production of p-Type Si/n-Type β-FeSi2 Heterojunctions using Facing-Targets Direct-Current Sputtering and Evaluation of Their Resistance and Interface State Density
Physica Status Solidi A, 1701022, Volume 215, Issue 20, 2018
https://doi.org/10.1002/pssa.201701022

Rei Fukuta, Naoya Yamamoto, Fumitaro Ishikawa, Masashi Matsushita, Tsuyoshi Yoshitake, Hiroshi Ikenoue, Hiroaki Ohfuji, Toru Shinmei, Tetsuo Irifune
Pulsed laser irradiation as a process of conductive surface formation on nano-polycrystalline diamond
Jpn. J. Appl. Phys. Vol. 57, No. 11 (2018) 118004.
https://doi.org/10.7567/JJAP.57.118004

R. Chaleawpong, N. Promros, P. Charoenyuenyao, A. Nopparuchikun, P. Sittimart, T. Nogami, T. Yoshitake
Production of p-Type Si/n-Type β-FeSi2 Heterojunctions Using Facing-Targets Direct-Current Sputtering and Evaluation of Their Resistance and Interface State Density
Physica Status Solidi (A), Volume 215, Issue 20, 24 October 2018, Article number 1701022
DOI: 10.1002/pssa.201701022

Mahmoud Shaban, Abdelrahman Zkria, and Tsuyoshi Yoshitake
Characterization and design optimization of heterojunction photodiodes comprising n-type ultrananocrystalline diamond/hydrogenated amorphous carbon composite and p-type Si
Materials Science in Semiconductor Processing, Vol. 86 (2018) pp. 115-121.
https://doi.org/10.1016/j.mssp.2018.06.028

Peerasil Charoenyuenyao, Nathaporn Promros, Rawiwan Chaleawpong, and Tsuyoshi Yoshitake
Surface morphology and wettability for thin films of beta-iron disilicide produced through direct-current sputtering utilizing a pair of facing targets
MATEC Web of Conferences, Volume 192, 14 August 2018, Article number 01054
DOI: 10.1051/matecconf/201819201054

Satoshi Takeichi, Takashi Nishiyama, Mitsuru Tabara, Shuichi Kawawaki, Masamichi Kohno, Koji Takahashi, and Tsuyoshi Yoshitake
Hydrogenation effects on thermal conductivity of ultrananocrystalline diamond/amorphous carbon com-posite films prepared by coaxial arc plasma deposition
Appl. Phys. Express, Vol. 11, No. 6 (2018) 065101.
https://doi.org/10.7567/APEX.11.065101

Eslam Abubakr, Yūki Katamune, Abdelrahman Zkria, Hiroshi Ikenoue, and Tsuyoshi Yoshitake
Laser-induced phosphorus doping for singlecrystalline diamond in phosphoric acid liquid
to be published in J. Phys. Conf. Series

Hiroki Ishimoto, Kazuki Kudo, Tetsuo Tabei, Kazushi Okada, Shinji Yamada, Tadashi Sato, Ken-ichiro Sakai, and Tsuyoshi Yoshitake
Fabrication of lateral-type spin-valve comprising FeSi2 spin-transfer layers by electron beam lithography
to be published in J. Phys. Conf. Series

Weerasaruth Kaenrai, Nathaporn Promros, Phongsaphak Sittimart, Rawiwan Chaleawpong, Peerasil Charoenyuenyao, Thanachai Changcharoen, Adison Nopparuchikun, Tomohiro Nogami, and Tsuyoshi Yoshitake
Photovoltaic Properties and Series Resistance of p-Type Si/Intrinsic Si/n-Type Nanocrystalline FeSi2 Heterojunctions Created by Utilizing Facing-Targets Direct-Current Sputtering
to be pubkished in Journal of Nanoelectronics and Nanotechnology

Rawiwan Chaleawpong, Nathaporn Promros, Peerasil Charoenyuenyao, Takanori Hanada, Shinya Ohmagari, Abdelrahman Zkria, and Tsuyoshi Yoshitake
Junction parameters of boron-doped p-type ultrananocrystalline diamond/hydrogenated amorphous carbon composite/n-type silicon heterojunctions formed by pulsed laser deposition
to be published in Journal of Nanoelectronics and Nanotechnology

Takanori Hanada, Shinya Ohmagari, Abdelrahman Zkria, and Tsuyoshi Yoshitake
Photoconduction of p-type Ultrananocrystalline Diamond/Hydrogenated Amorphous Carbon Composite Films in Metal-Semiconductor-Metal Geometry
to be published in J. Phys. Conf. Series

Naofumi Nishikawa, Satoshi Takeichi, Takanori Hanada, Shuya Tategami, Atsuhiko Fukuyama, and Tsuyoshi Yoshitake
Minority carrier lifetime in ultrananocrystalline diamond/hydrogenated amorphous carbon composite films
Trans. Mat. Res. Soc. Jpn, Vol. 43, issue 2 (2018) pp. 49-52.
https://doi.org/10.14723/tmrsj.43.49

2017

吉田智博, 内田聖也, 村澤功基, 工藤昌輝, 鳥山誉亮, 福井康雄, 櫻井正俊, 吉武剛
反応性同軸型アークプラズマ堆積法によるAlNナノコンポジット硬質薄膜の作製
表面技術協会速報論文, Vol. 68，No. 12 (2017) pp. 83-85.

Satoshi Takeichi, Takashi Nishiyama, Mitsuru Tabara, Shuichi Kawawaki, Masamichi Kohno, Koji Takahashi, and
Tsuyoshi Yoshitake
Effects of hydrogenation on thermal transport in ultrananocrystalline diamond/amorphous carbon composite films
Proceedings of 11th International Symposium on Atomic Level Characterizations for New Materials and Devices ’17 (ALC17) Proceedings (2017) pp. 343-345.

Satoshi Takeichi, Naofumi Nishikawa, Shuya Tategami, Atsuhiko Fukuyama, and Tsuyoshi Yoshitake
Photodetection properties of heterojunction diodes comprising boron-doped ultrananocrystalline diamond films
prepared by coaxial arc plasma deposition and n-type silicon substrates
Proceedings of 11th International Symposium on Atomic Level Characterizations for New Materials and Devices ’17 (ALC17) (2017) pp. 346-348.

Mohamed Egiza, Kouki Murasawa, Ali M. Ali, Yasuo Fukui, Hidenobu Gonda, and Masatoshi Sakurai, and Tsuyoshi Yoshitake
Doping Effects of Boron on Mechanical Properties of Ultrananocrystalline Diamond/Amorphous Carbon Com-posite Films Deposited on Cemented Carbide Substrates by Coaxial Arc Plasma Deposition
Proceedings of 11th International Symposium on Atomic Level Characterizations for New Materials and Devices ’17 (ALC17) (2017) pp. 368-370.

Kazuki Kudo, S. Takeichi, K. Nakashima, K. Sakai, M. Nishijima and T. Yoshitake
Structural Evaluations of Fe/Boron-Doped Carbon/Fe3Si Spin-Valve Junctions
Proceedings of 11th International Symposium on Atomic Level Characterizations for New Materials and Devices ’17 (ALC17) (2017) pp. 64-66.

Kazuki Kudo, S. Takeichi, K. Nakashima, K. Sakai and T. Yoshitake
Magnetoresistance Effects in Spin-Valves Comprising N-Doped Carbon Interlayers
Proceedings of 11th International Symposium on Atomic Level Characterizations for New Materials and Devices ’17 (ALC17) (2017) pp. 79-81.

Ali M.Ali, Mohamed Egiza, Koki Murasawa, Yasuo Fukui, Hidenobu Gonda, Masatoshi Sakurai, and Tsuyoshi Yoshitake
Hard Coating of Ultrananocrystalline Diamond/Nonhydrogenated Amorphous Carbon
Composite Films on Si Substrates by Coaxial Arc Plasma Deposition
Proceedings of 11th International Symposium on Atomic Level Characterizations for New Materials and Devices ’17 (ALC17) (2017) pp. 194-196.

Naofumi Nishikawa, Satoshi Takeichi, Takanori Hanada, Shuya Tategami, Atsuhiko Fukuyama, Tsuyoshi Yoshitake
Minority Carrier Lifetimes in Nitrogen-doped Ultrananocrystalline Diamond/Hydrogenated Amorphous Carbon Composite Films
Proceedings of the CSS on Energy and Environmental Science and Technology (2017) pp.162-163.

Ali M. Ali, Mohamed Egiza, Koki Murasawa, Yasuo Fukui, Hidenobu Gonda, Masatoshi Sakurai, and Tsuyoshi Yoshitake
Negative bias effects on the growth and mechanical properties of ultrananocrystaline diamond/amorphous carbon films deposited on cemented carbide substrates by coaxial arc plasma deposition.
Proceedings of the CSS on Energy and Environmental Science and Technology (2017) pp. 204-205.

Kazuki Kudo, Satoshi Takeichi, Kazutoshi Nakashima, Ken-ichiro Sakai,and Tsuyoshi Yoshitake
Magnetoresistance effects in Fe/nanodiamond/Fe3Si trilayered junctions at room temperature
Proceedings of the Cross Straits Symposium on Energy and Environmental Science and Technology (2017) pp. 202-203.

Naofumi Nishikawa, Satoshi Takeichi, Shuya Tategami, Atsuhiko Fukuyama, and Tsuyoshi Yoshitake
Hydrogenation effects on minority carrier lifetime in ultrananocrystalline diamond/amorphous carbon films prepared by coaxial arc plasma deposition
Proceeding of International Exchange and Innovation Conference on Engineering and Sciences (IEICES 2017), pp. 167-170.

吉武剛
博多大津と大宰府～古からの国際港博多と西の都として外交と防衛を司った大宰府～
応用物理第86巻 8月増刊号（2017） ii～ix頁．

Abdelrahman Zkria and Tsuyoshi Yoshitake
Temperature-dependent current-voltage characteristics and ultraviolet light detection of heterojunction diodes comprising n-type ultrananocrystalline diamond/hydrogenated amorphous carbon composite films and p-type Si substrates
Jpn. J. Appl. Phys., Vol. 56, No. 7S2 (2017) 07KD04.
https://doi.org/10.7567/JJAP.56.07KD04

Adison Nopparuchikun, Nathaporn Promros, Phongsaphak Sittimart, Peeradon Onsee, Asanlaya Duangrawa, Sakmongkon Teakchaicum, Tomohiro Nogami and Tsuyoshi Yoshitake
Interface-state density estimation of n-type nanocrystalline FeSi2/p-type Si heterojunctions fabricated by pulsed laser deposition
Adv. Nat. Sci.: Nanosci. Nanotechnol. Vol. 8, No. .3 (2017) 035016.
doi:10.1088/2043-6254/aa7241

Hitoshi UMEZAWA, Hiroki GIMA, Khaled DRICHE, Yukako KATO, Tsuyoshi YOSHITAKE, Yoshiaki MOKUNO, and Etienne GHEERAERT
Defect and field-enhancement characterization using electron-beam induced current analysis
Appl. Phys. Lett., Vol. 110, Issue 18 (2017) 182103.
doi: http://dx.doi.org/10.1063/1.4982590

Kazuki Kudo, Kazutoshi Nakashima, Satoshi Takeichi, Rezwan Ahmed, Seigi Mizuno, Ken-ichiro Sakai, Masahiko Nishijima, and Tsuyoshi Yoshitake
Film Structures of Fe/B-doped Carbon/Fe3Si Spin Valve Junctions
JJAP Conf. Proc., Vol. 5, 011502 (2017)
doi:10.7567/JJAPCP.5.011502

Kazuya Ishibashi, Kazuki Kudo, Kazutoshi Nakashima, Yuki Asai, Ken-ichiro Sakai, Hiroyuki Deguchi, and Tsuyoshi Yoshitake
Temperature-dependent Magnetoresistance Effects in Fe3Si/FeSi2/Fe3Si Trilayered Spin Valve Junctions
JJAP Conf. Proc., Vol. 5, 011501 (2017).
doi:10.7567/JJAPCP.5.011501

Tomohiro Nogami, Hirokazu Kishimoto, Ryuji Baba, Nathaporn Promros, and Tsuyoshi Yoshitake
Effects of nitrogen doping on optical and electrical properties of nanocrystalline FeSi2 films prepared by sputtering
JJAP Conf. Proc., Vol. 5, 011103 (2017).
doi:10.7567/JJAPCP.5.011103

Takanori Hanada, Shinya Ohmagari, Abdelrahman Zkria, Nathaporn Promros, and Tsuyoshi Yoshitake
Photodetection Characteristics of Heterojunctions Comprising p-Type Ultrananocrystalline Diamond/Hydrogenated Amorphous Carbon Composite Films and n-Type Si Substrates at Low Temperatures
Journal of Nanoelectronics and Nanotechnology, Vol. 17, No. 5 (2017) pp. 3348-3351.
DOI: https://doi.org/10.1166/jnn.2017.14104

Abdelrahman Zkria, Hiroki Gima, Tsuyoshi Yoshitake
Application of nitrogen-doped ultrananocrystalline diamond/hydrogenated amorphous carbon composite films for ultraviolet detection
Appl. Phys. A, Vol. 123, issue 581 (2017) 167 (6 pages)
DOI 10.1007/s00339-017-0798-4

S. Takeichi, T. Nishiyam, M. Tabara, S. Kawawaki, M. Kohno, K. Takahashi, and T. Yoshitake
Thermal conductivity of Ultrananocrystalline Diamond/Hydrogenated Amorphous Carbon Composite Films Prepared by Coaxial Arc Plasma Deposition
ECS Transactions, Vol. 75, Issue 25 (2017) pp. 27-32.
doi: 10.1149/07525.0027ecst

Y. Katamune, S. Al-Riyami, S. Takeichi, and T. Yoshitake
Study on Defects in Ultrananocrystalline Diamond/Amorphous Carbon Composite Films Prepared by Physical Vapor Deposition
ECS Transactions, Vol. 75, Issue 25 (2017) pp. 45-52.
doi: 10.1149/07525.0045ecst

Hiroki Gima, Itsuro Suzuki, and Tsuyoshi Yoshitake
N-type Conduction in Ultrananocrystalline Diamond/Hydrogenated Amorphous Carbon Composite Films Prepared by Coaxial Arc Plasma Deposition Using Li3PO4-Blended Graphite Targets
ECS Transactions, Vol. 75, Issue 25 (2017) pp. 37-44.
doi: 10.1149/07525.0037ecst

Hiroki Gima, Abdelrahman Zkria, Yūki Katamune, Ryota Ohtani, Satoshi Koizumi, and Tsuyoshi Yoshitake
Chemical Bonding Structural Analysis of Nitrogen-Doped Ultrananocrystalline Diamond/Hydrogenated Amorphous Carbon Composite Films Prepared by Coaxial Arc Plasma Deposition
Appl. Phys. Express, Vol. 10, No. 1 (2017) 015801.
https://doi.org/10.7567/APEX.10.015801

2016

Takanori Hanada
Modifying the Feed-in Tariff System in Japan: An Environmental Perspective
Evergreen, Vol. 03, Issue 02 (2016) pp. 54-58.

Hiroki Gima and Tsuyoshi Yoshitake
A Comparative Study of Energy Security in Okinawa Prefecture and the State of Hawaii
Evergreen, Vol. 03, Issue 02 (2016) pp. 36-44.

Satoshi Takeichi, Takashi Nishiyama, Mitsuru Tabara, Shuichi Kawawaki, Masamichi Kohno, Koji Takahashi, and Tsuyoshi Yoshitake
Thermal Conductivity Measurements of Ultrananocrystalline Diamond/Hydrogenated Amorphous Carbon Composite Films by Time-Domain Thermoreflectance
Proceedings of International Forum for Green Asia 2016 (2016) pp. 57-58.

Takanori Hanada, Shinya Ohmagari, Abdelrahman Zkria, and Tsuyoshi Yoshitake
Barrier Height of Au Contact on p-Type Ultrananocrystalline Diamond/Hydrogenated Amorphous Carbon Composite Films
Proceedings of International Forum for Green Asia 2016 (2016) pp. 13-14.

Hiroki Gima and Tsuyoshi Yoshitake
Chemical Bonding Structural Analysis of Nitrogen-Doped Ultrananocrystalline Diamond/Hydrogenated Amorphous Carbon Composite Films Prepared by Coaxial Arc Plasma Deposition
Proceedings of International Forum for Green Asia 2016 (2016) pp. 11-12.

Kazutoshi Nakashima, Kazuki Kudo, Satoshi Takeichi, Ken-ichiro Sakai, and Tsuyoshi Yoshitake
Spin valves comprising nitrogen-doped carbon interlayers
Proceedings of the 18th Cross Straits Symposium on Energy and Environmental Science & Technology (2016) pp. 45-46.

Rezwan Ahmed, Kazuki Kudo, Satoshi Takeichi, Ken-ichiro Sakai, Masahiko Nishijima, Tsuyoshi Yoshitake, and Seigi Mizuno
Fabrication of spin valve junctions comprising Fe3Si/B-doped carbon/Fe trilayers
Proceedings of the 18th Cross Straits Symposium on Energy and Environmental Science & Technology (2016) pp. 27-28.

Satoshi Takeichi, Takashi Nishiyama, Mitsuru Tabara, Shuichi Kawawaki, Masamichi Kohno, Koji Takahashi, and Tsuyoshi Yoshitake
Thermal conduction evaluation of ultrananocrystalline diamond/hydrogenated amorphous carbon composite films by time-domain thermoreflectance
Proceedings of the 18th Cross Straits Symposium on Energy and Environmental Science & Technology (2016) pp. 31-32.

Adison Nopparuchikun, Nathaporn Promros, Sakmongkon Teakchaicum, Peeradon Onsee, Asanlaya Duangrawa, Phongsaphak Sittimart, Hirokazu Kishimoto, Tomohiro Nogami, and Tsuyoshi Yoshitake
C-V-f and G-V-f Characteristics of n-Type β-FeSi2/p-Type Si Heterojunctions Fabricated by Using Radio Frequency Magnetron Sputtering
Proceedings of International Symposium on Dry Process, (2016) pp. 129-130.

Nathaporn Promros, Ryuji Baba, Hirokazu Kishimoto, Phongsaphak Sittimart, Takanori Hanada, Kenji Hanada, Abdelrahman Zkria, Mahmoud Shaban, and Tsuyoshi Yoshitake
Characterization of n-Type Nanocrystalline Iron Disilicide/Intrinsic Ultrananocrystalline Diamond/Amorphous Carbon Composite/p-type Silicon Heterojuncrion at Low Temperatures
J. Nanoelectronics and Optoelectronics, Vol. 11, No. 5 (2016) pp. 579-584.

Abdelrahman Zkria, Mahmoud Shaban, Takanori Hanada, Nathaporn Promros, and Tsuyoshi Yoshitake
Current transport mechanisms in n-type ultrananocrystalline diamond/p-type Si heterojunctions
Journal of Nanoelectronics and Nanotechnology, Vol. 16, No. 12 (2016) pp. 12749-12753(5).
DOI: http://dx.doi.org/10.1166/jnn.2016.13663

Hiroshi Naragino, Mohamed Egiza, Aki Tominaga, Koki Murasawa, Hidenobu Gonda, Masatoshi Sakurai, and Tsuyoshi Yoshitake
Hard coating of ultrananocrystalline diamond/nonhydrogenated amorphous carbon composite films on cemented tungsten carbide by coaxial arc plasma deposition
Appl. Phys. A, Vol. 122 (2016) 122:761.
doi:10.1007/s00339-016-0284-4

Mahmoud Shaban, Amr M. Bayoumi, Doaa Farouk, Mohamed B. Saleh, Tsuyoshi Yoshitake
Evaluation of photovoltaic properties of nanocrystalline-FeSi2/Si heterojunctions
Solid-State Electronics, Vol. 123 (2016) pp. 111-118.
http://dx.doi.org/10.1016/j.sse.2016.05.006

Abdelrahman Zkria, Yuki Katamune, and Tsuyoshi Yoshitake
Effects of Nitrogen doping on the electrical conductivity and optical absorption of ultrananocrystalline diamond/hydrogenated amorphous carbon films prepared by coaxial arc plasma deposition
Jpn. J. Appl. Phys. Vol. 55, No. 7S2 (2016) 07LE01.
http://doi.org/10.7567/JJAP.55.07LE01

Nathaporn Promros, Ryuji Baba, Motoki Takahara, Tarek M. Mostafa, Phongsaphak Sittimart, Mahmoud Shaban, and Tsuyoshi Yoshitake
Epitaxial Growth of beta-FeSi2 Thin Films on Si(111) Substrates by Radio Frequency Magnetron Sputtering and Their Application to Near-Infrared Photodetection
Jpn. J. Appl. Phys. Vol. 55, No. 6S2 (2016) 06HC03.
http://doi.org/10.7567/JJAP.55.06HC03

G. Degutis, P. Pobedinskas, S. Turner, Y.-G.Lu, S. AlRiyami, B. Ruttens,T. Yoshitake, J. D'Haen, K. Haenen, J. Verbeeck, and A. Hardy, and M.K. Van Bael
CVD diamond growth from nanodiamond seeds buried under a thin chromium layer
Diamond & Related Materials, Vol. 64 (2016) pp. 163–168.
http://dx.doi.org/10.1016/j.diamond.2016.02.013

Mohamed Egiza, Hiroshi Naragino, Aki Tominaga, Kouki Murasawa, Hidenobu Gonda, Masatoshi Sakurai, and Tsuyoshi Yoshitake
Si and Cr Doping Effects on Growth and Mechanical Properties of Ultrananocrystalline Diamond/Amorphous Carbon Composite Films Deposited on Cemented Carbide Substrates by Coaxial Arc Plasma Deposition
Evergreen, Vol. 03, Issue 01, pp. 32-36, March 2016.
http://www.tj.kyushu-u.ac.jp/leading/en/c_publication/EG2016-3-1content/Pages%2032-36.pdf

Hiroshi Naragino, Mohamed Egiza, Aki Tominaga, Koki Murasawa, Hidenobu Gonda, Masatoshi Sakurai, and Tsuyoshi Yoshitake
Fabrication of ultrananocrystalline diamond/nonhydrogenated amorphous carbon composite films for hard coating by coaxial arc plasma deposition
Evergreen, Vol. 03, Issue 01, pp. 1-5, March 2016.
http://www.tj.kyushu-u.ac.jp/leading/en/c_publication/EG2016-3-1content/Pages%201-5.pdf

原　武嗣，大西雅也，藤本大輔，吉武　剛
同軸型アークプラズマ蒸着法により作製したホウ素添加超ナノ微結晶ダイヤモンド／アモルファス炭素混相膜の電気化学特性
産業応用工学会論文誌，Vol. 4, No. 1, pp. 31-32 (Mar. 2016).
DOI: 10.12792/jjiiae.004.01.06

Hiroshi Naragino, Mohamed Egiza, Aki Tominaga, Koki Murasawa, Hidenobu Gonda, Masatoshi Sakurai, and Tsuyoshi Yoshitake
Room-temperature hard coating of ultrananocrystalline diamond/nonhydrogenated amorphous carbon composite films on tungsten carbide by coaxial arc plasma deposition
Jpn. J. Appl. Phys. (Rapid Communication) Vol. 55, No. 3 (2016) 030302.
http://doi.org/10.7567/JJAP.55.030302

Department of Applied Science for Electronics and Materials, Kyushu University