研究者詳細 - 西川　亘

論文 - 西川　亘

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Exploring the structural and optical properties in Cs<inf>3</inf>Fe<inf>2</inf>Cl<inf>9</inf> perovskite through ruthenium doping

Thiri Htun, Hytham Elbohy, Hiroo Suzuki, Kazumasa Horigane, Chiyu Nakano, Takeshi Nishikawa, Aung Ko Ko Kyaw, Yasuhiko Hayashi

Journal of Materials Science: Materials in Electronics 36 ( 5 ) 2025年2月

Enhanced capacity of aluminum-ion batteries by adjusting the average pore size of the porous carbon cathode

Yifeng Chen, Hiroo Suzuki, Shu Fukumoto, Chiyu Nakano, Takeshi Nishikawa, Shigeyuki Umezawa, Yasuhiko Hayashi

Journal of Materials Chemistry A 13 ( 11 ) 8052 - 8058 2025年

Optical bandgap tuning in SnO2–MoS2 nanocomposites: manipulating the mass of SnO2 and MoS2 using sonochemical solution mixing

Chinkhai Ong, Weng Nam Lee, Yee Seng Tan, Patrik Ohberg, Yasuhiko Hayashi, Takeshi Nishikawa, Yuenkiat Yap

Journal of Materials Science: Materials in Electronics 36 ( 1 ) 2024年12月

掲載種別：研究論文（学術雑誌）出版者・発行元：Springer Science and Business Media LLC

Abstract

This study investigates controlled optical bandgap tuning through precise adjustment of the SnO₂ and MoS₂ mass in nanocomposites. A sonochemical solution mixing method, coupled with bath sonication, is employed for the preparation of SnO₂–MoS₂ nanocomposite. This approach allows for comprehensive characterization using UV–Vis FTIR, XRD, EDX, Raman spectroscopies, and FESEM, providing insights into morphology, chemical, and optical properties. Increasing the SnO₂ mass leads to a linear decrease in the optical bandgap energy, from 3.0 to 1.7 eV. Similarly, increasing the MoS₂ mass also results in a decrease in the optical bandgap energy, with a limitation of around 2.01 eV. This work demonstrates superior control over optical bandgap by manipulating the SnO₂ mass compared to MoS₂, highlighting the complexities introduced by MoS₂ 2D nanosheets during sonication. These findings hold significant value for optoelectronic applications, emphasizing enhanced control of optical bandgap through systematic mass manipulation.

DOI： 10.1007/s10854-024-14061-7

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その他リンク： https://link.springer.com/article/10.1007/s10854-024-14061-7/fulltext.html

Phenolphthalein: A Potent Small-Molecule Additive for High-Performance and Ambient-Air-Stable FAPbI₃ Perovskite Solar Cells

Hytham Elbohy, Hiroo Suzuki, Takeshi Nishikawa, Aung Ko Ko Kyaw, Yasuhiko Hayashi

ACS Applied Energy Materials 2024年3月

N‐DMBI Doping of Carbon Nanotube Yarns for Achieving High n‐Type Thermoelectric Power Factor and Figure of Merit

Hiroo Suzuki, Jun Kametaka, Shinya Nakahori, Yuichiro Tanaka, Mizuki Iwahara, Haolu Lin, Sergei Manzhos, Aung Ko Ko Kyaw, Takeshi Nishikawa, Yasuhiko Hayashi

Small Methods 2024年3月

掲載種別：研究論文（学術雑誌）出版者・発行元：Wiley

Abstract

The application of carbon nanotube (CNT) yarns as thermoelectric materials for harvesting energy from low‐grade waste heat including that generated by the human body, is attracting considerable attention. However, the lack of efficient n‐type CNT yarns hinders their practical implementation in thermoelectric devices. This study reports efficient n‐doping of CNT yarns, employing 4‐(1, 3‐dimethyl‐2, 3‐dihydro‐1H‐benzimidazole‐2‐yl) phenyl) dimethylamine (N‐DMBI) in alternative to conventional n‐dopants, with o‐dichlorobenzene emerging as the optimal solvent. The small molecular size of N‐DMBI enables highly efficient doping within a remarkably short duration (10 s) while ensuring prolonged stability in air and at high temperature (150 °C). Furthermore, Joule annealing of the yarns significantly improves the n‐doping efficiency. Consequently, thermoelectric power factors (PFs) of 2800, 2390, and 1534 µW m⁻¹ K⁻² are achieved at 200, 150, and 30 °C, respectively. The intercalation of N‐DMBI molecules significantly suppresses the thermal conductivity, resulting in the high figure of merit (ZT) of 1.69×10⁻² at 100 °C. Additionally, a π‐type thermoelectric module is successfully demonstrated incorporating both p‐ and n‐doped CNT yarns. This study offers an efficient doping strategy for achieving CNT yarns with high thermoelectric performance, contributing to the realization of lightweight and mechanically flexible CNT‐based thermoelectric devices.

DOI： 10.1002/smtd.202301387

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Influence of Dilution Upon the Ultraviolet-Visible Peak Absorbance and Optical Bandgap Estimation of Tin(IV) Oxide and Tin(IV) Oxide-Molybdenum(IV) Sulfide Solutions

Chin Khai Ong, Weng Nam Lee, Mohammad Khalid, Muhammad Amirul Aizat Mohd Abdah, Patrik Ohberg, Ling Hong Lim, Yasuhiko Hayashi, Takeshi Nishikawa, Yuenkiat Yap

Analytical Letters 58 ( 2 ) 196 - 212 2024年2月

Lead-free iron-doped Cs₃Bi₂Br₉ perovskite with tunable properties

Thiri Htun, Amr Elattar, Hytham Elbohy, Kosei Tsutsumi, Kazumasa Horigane, Chiyu Nakano, Xiaoyu Gu, Hiroo Suzuki, Takeshi Nishikawa, Aung Ko Ko Kyaw, Yasuhiko Hayashi

RSC Advances 14 ( 32 ) 23177 - 23183 2024年

Benzophenone: A Small Molecule Additive for Enhanced Performance and Stability of Inverted Perovskite Solar Cells. 国際誌

Hytham Elbohy, Hiroo Suzuki, Takeshi Nishikawa, Thiri Htun, Kosei Tsutsumi, Chiyu Nakano, Aung Ko Ko Kyaw, Yasuhiko Hayashi

ACS applied materials & interfaces 2023年9月

記述言語：英語掲載種別：研究論文（学術雑誌）

In this study, we investigated the impact of benzophenone (BP), a small molecule additive, on the performance and stability of inverted perovskite solar cells (PSCs). Specifically, we introduced BP into the perovskite precursor solution of FAPbI3 to fabricate PSCs with an ITO/PEDOT:PSS/BP:FAPbI3/PCBM/C60/PCB/Ag architecture. The incorporation of BP with an optimum concentration of 2 mg mL-1 significantly enhanced the power conversion efficiency (PCE) of the inverted PSC from 13.12 to 18.84% with negligible hysteresis. Notably, the BP-based PSCs retained ∼90% of their initial PCE after being stored in ambient air with 30% relative humidity at 25 °C for 700 h. In contrast, control devices showed rapid degradation, retaining only 30% of their initial value within 300 h under the same conditions. We attributed the superior performance and stability of the BP-based PSCs to the grain boundary passivation of the perovskite film. The improvement was mainly attributed to the intermolecular interaction between the O-donor Lewis base BP material and both Pb2+ and FA+ in FAPbI3. This effectively suppresses trap-assisted recombination and promotes the conversion of the δ-phase to photoactive and stable α-phase FAPbI3. Overall, our findings suggest that BP is a promising additive for improving the performance and stability of inverted PSCs.

DOI： 10.1021/acsami.3c09835

PubMed

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Dispersion stability of tin(IV) oxide nanoparticles in polar solvents and water aided by ultrasonication

Chinkhai Ong, Wengnam Lee, Linghong Lim, Wuyi Chong, Jingwen Chew, Yasuhiko Hayashi, Takeshi Nishikawa, Patrik Öhberg, Harith Ahmad, Yuenkiat Yap

Japanese Journal of Applied Physics 62 ( 3 ) 035002 - 035002 2023年3月

掲載種別：研究論文（学術雑誌）出版者・発行元：IOP Publishing

Abstract

Dispersion stability of tin(IV) oxide nanoparticles dispersed in N-Methy-2-Pyrrolidone (NMP), dimethylformamide (DMF) and distilled water assisted by ultrasonication was investigated, aiming to identify a suitable liquid medium to effectively disperse tin(IV) oxide for many useful applications. The dispersions’ stability was characterized using field emission scanning electron microscopy, ultraviolet–visible spectroscopy and Zeta potential. The results show that distilled water has the highest stability with optimum sonication of 1 h. NMP shows better stability and consistency than DMF at different sonication timings. Good agreement between ultraviolet–visible absorbance and Zeta potentials shows that both distilled water and NMP are good mediums to produce highly stable tin(V) oxide dispersion.

DOI： 10.35848/1347-4065/acc0b5

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その他リンク： https://iopscience.iop.org/article/10.35848/1347-4065/acc0b5/pdf

Mixed-halide copper-based perovskite R2Cu(Cl/Br)(4) with different organic cations for reversible thermochromism

Amr Elattar, Kosei Tsutsumi, Hiroo Suzuki, Takeshi Nishikawa, Aung Ko Ko Kyaw, Yasuhiko Hayashi

NEW JOURNAL OF CHEMISTRY 46 ( 45 ) 21737 - 21745 2022年11月

Enhancement of the mechanical and thermal transport properties of carbon nanotube yarns by boundary structure modulation

Ryo Shikata, Hiroo Suzuki, Yuta Hayashi, Taisuke Hasegawa, Yuho Shigeeda, Hirotaka Inoue, Wataru Yajima, Jun Kametaka, Mitsuaki Maetani, Yuichiro Tanaka, Takeshi Nishikawa, Satoshi Maeda, Yasuhiko Hayashi, Masaki Hada

NANOTECHNOLOGY 33 ( 23 ) 2022年6月

Single Crystals of Mixed-Cation Copper-Based Perovskite with Trimodal Bandgap Behavior

Amr Elattar, Wenhui Li, Hiroo Suzuki, Takashi Kambe, Takeshi Nishikawa, Aung Ko Ko Kyaw, Yasuhiko Hayashi

CHEMISTRY-A EUROPEAN JOURNAL 28 ( 26 ) 2022年5月

Modeling the wavelength of unresolved transition arrays in the extreme ultraviolet region from Sn to Hf ions by combining theoretical and experimental spectral data

A. Sasaki, K. Fujii, I. Murakami, H. A. Sakaue, T. Nishikawa, H. Ohashi, N. Nakamura

AIP ADVANCES 12 ( 2 ) 2022年2月

Highly Oriented Carbon Nanotube Supercapacitors

Kohei Komatsubara, Hiroo Suzuki, Hirotaka Inoue, Misaki Kishibuchi, Shona Takahashi, Tatsuki Marui, Shigeyuki Umezawa, Tomohiro Nakagawa, Kyohei Nasu, Mitsuaki Maetani, Yuichiro Tanaka, Miyato Yamada, Takeshi Nishikawa, Yoshifumi Yamashita, Masaki Hada, Yasuhiko Hayashi

ACS APPLIED NANO MATERIALS 5 ( 1 ) 1521 - 1532 2022年1月

Copper-incorporation for polytypism and bandgap engineering of MAPbBr₃ perovskite thin films with enhanced near-Infrared photocurrent-response

Amr Elattar, Jiban Kangsabanik, Kodai Nakao, Kosei Tsutsumi, Hiroo Suzuki, Takeshi Nishikawa, Kristian S. Thygesen, Yasuhiko Hayashi

Materials Chemistry Frontiers 6 ( 18 ) 2690 - 2702 2022年

Structure modulation for bandgap engineered vacancy-ordered Cs₃Bi₂Br₉ perovskite structures through copper alloying

Amr Elattar, Libor Kobera, Jiban Kangsabanik, Hiroo Suzuki, Sabina Abbrent, Takeshi Nishikawa, Kristian S. Thygesen, Jiri Brus, Yasuhiko Hayashi

Journal of Materials Chemistry C 10 ( 35 ) 12863 - 12872 2022年

Improved room-temperature thermoelectric characteristics in F4TCNQ-doped CNT yarn/P3HT composite by controlled doping

May Thu Zar Myint, Takeshi Nishikawa, Hirotaka Inoue, Kazuki Omoto, Aung Ko Ko Kyaw, Yasuhiko Hayashi

ORGANIC ELECTRONICS 90 2021年3月

Single crystal of two-dimensional mixed-halide copper-based perovskites with reversible thermochromism

Amr Elattar, Hiroo Suzuki, Ryuji Mishima, Kodai Nakao, Hiromi Ota, Takeshi Nishikawa, Hirotaka Inoue, Aung Ko Ko Kyaw, Yasuhiko Hayashi

Journal of Materials Chemistry C 9 ( 9 ) 3264 - 3270 2021年

Synthesis and characterization of conductive flexible cellulose carbon nanohorn sheets for human tissue applications. 国際誌

Karthik Paneer Selvam, Taichi Nagahata, Kosuke Kato, Mayuko Koreishi, Toshiyuki Nakamura, Yoshimasa Nakamura, Takeshi Nishikawa, Ayano Satoh, Yasuhiko Hayashi

Biomaterials research 24 18 - 18 2020年

記述言語：英語掲載種別：研究論文（学術雑誌）

Background: Conductive sheets of cellulose and carbon nanomaterials and its human skin applications are an interesting research aspect as they have potential for applications for skin compatibility. Hence it is needed to explore the effects and shed light on these applications. Method: To fabricate wearable, portable, flexible, lightweight, inexpensive, and biocompatible composite materials, carbon nanohorns (CNHs) and hydroxyethylcellulose (HEC) were used as precursors to prepare CNH-HEC (Cnh-cel) composite sheets. Cnh-cel sheets were prepared with different loading concentrations of CNHs (10, 20 50,100 mg) in 200 mg cellulose. To fabricate the bio-compatible sheets, a pristine composite of CNHs and HEC was prepared without any pretreatment of the materials. Results: The obtained sheets possess a conductivity of 1.83 × 10- 10 S/m and bio-compatible with human skin. Analysis for skin-compatibility was performed for Cnh-cel sheets by h-CLAT in vitro skin sensitization tests to evaluate the activation of THP-1 cells. It was found that THP-1 cells were not activated by Cnh-cel; hence Cnh-cel is a safe biomaterial for human skin. It was also found that the composite allowed only a maximum loading of 100 mg to retain the consistent geometry of free-standing sheets of < 100 μm thickness. Since CNHs have a unique arrangement of aggregates (dahlia structure), the composite is homogeneous, as verified by transmission electron microscopy (TEM) and, scanning electron microscopy (SEM), and other functional properties investigated by Raman spectroscopy, Fourier transform infrared spectroscopy (FT-IR), conductivity measurement, tensile strength measurement, and skin sensitization. Conclusion: It can be concluded that cellulose and CNHs sheets are conductive and compatible to human skin applications.

DOI： 10.1186/s40824-020-00194-3

PubMed

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Influence of pressure of nitrogen gas on structure and thermoelectric properties of acid-treated PEDOT: PSS films 査読

May Thu Zar Myint, Hirotaka Inoue, Susumu Ichimura, Takeshi Nishikawa, Yuta Nishina, Aung Ko Ko Kyaw, Yasuhiko Hayashi

Journal of Materials Science: Materials in Electronics 30 ( 14 ) 13534 - 13542 2019年7月

Bond Dissociation Triggering Molecular Disorder in Amorphous H2O 査読

M Hada, Y Shigeeda, S Koshihara, T Nishikawa, Y Yamashita, Y Hayashi

The Journal of Physical Chemistry A 122 ( 49 ) 9579 - 9584 2018年11月

研究最前線高速成長した長尺・高密度2層カーボンナノチューブから乾式紡績による線材の開発

林靖彦, 井上寛隆, 林拓磨, 徳永知春, 羽田真毅, 西川亘

Nanofiber : ナノファイバー学会誌 8 ( 1 ) 29 - 33 2017年7月

Investigation of the ionization balance of bismuth-to-tin plasmas for the extreme ultraviolet light source based on a computer-generated collisional radiative model 査読

Akira Sasaki ,Atsushi Sunahara ,Katsunobu Nishihara ,Takeshi Nishikawa*

AIP Advances 6 ( 10 ) 2016年10月

Atomic process modeling in dense hydrogenic plasmas by nearest neighbor approximation 査読

T. Nishikawa*

Journal of Physics: Conference Series 688 ( 1 ) 2016年4月

Atomic process modeling in dense hydrogenic plasmas by nearest neighbor approximation 査読

Takeshi Nishikawa

Journal of Physics: Conference Series 688 ( 1 ) 2016年3月

Atomic processes and equation of state of high Z plasmas for EUV sources and their effects on the spatial and temporal evolution of the plasmas 査読

Akira Sasaki ,Atushi Sunahara ,Hiroyuki Furukawa ,Katsunobu Nishihara,Takeshi Nishikawa*,Fumihiro Koike

Journal of Physics: Conference Series 688 ( 1 ) 2016年

22aAE-1 電子分布を考慮したプラズマ中イオン、原子ポテンシャルの評価と電子状態数密度の計算への応用

西川亘

日本物理学会講演概要集 71 965 - 965 2016年

Self-Assembled C-60 Fullerene Cylindrical Nanotubes by LLIP method 査読

Venkata Krishna R. Rao, P. S. Karthik, Venkata K. Abhinav, Zaw Lin, May Thu Zar Myint, Takeshi Nishikawa, Masaki Hada, Yoshifumi Yamashita, Yasuhiko Hayashi, Surya Prakash Singh

2016 IEEE 16TH INTERNATIONAL CONFERENCE ON NANOTECHNOLOGY (IEEE-NANO) 303 - 306 2016年

19aCP-12 中性水素原子を考慮した最近接近似ブラズマ中原子過程モデルにおける束縛状態の定義

西川亘

日本物理学会講演概要集 70 705 - 705 2015年

21aCJ-9 電子線照射により拡大した積層欠陥の縮小に伴う4H-SiCエピ膜中部分転位の運動

山下善文, 下村拓也, 西川亘, 林靖彦

日本物理学会講演概要集 70 2683 - 2683 2015年

Modeling of free electronic state density in hydrogenic plasmas based on nearest neighbor approximation 査読

Takeshi Nishikawa

PHYSICS OF PLASMAS 21 ( 7 ) 072713 2014年7月

Modeling of radiative properties of Sn plasmas for extreme-ultraviolet source (vol 107, 113303, 2010)

Akira Sasaki, Atsushi Sunahara, Hiroyuki Furukawa, Katsunobu Nishihara, Shinsuke Fujioka, Takeshi Nishikawa, Fumihiro Koike, Hayato Ohashi, Hajime Tanuma

JOURNAL OF APPLIED PHYSICS 108 ( 2 ) 2010年7月

Atomic processes in the LPP and LA-DPP EUV sources

Akira Sasaki, Katsunobu Nishihara, Atsushi Sunahara, Hiroyuki Furukawa, Takeshi Nishikawa, Fumihiro Koike

ALTERNATIVE LITHOGRAPHIC TECHNOLOGIES 7271 2009年

Plasma physics and radiation hydrodynamics in developing an extreme ultraviolet light source for lithographya… 査読

Katsunobu Nishihara, 間に12名, Takeshi Nishikawa, 後ろに12名

PHYSICS OF PLASMAS 15 ( 5 ) 056708-1 - 056708-11 2008年5月

EUV Source Design Flexibility for Lithography 査読

T Nishikawa, A Sunahara, A Sasaki, and K Nishihara

Journal of Physics: Conference Series 112 42065 2008年4月

Detailed atomic modeling of Sn plasmas for the EUV source 査読

A. Sasaki, A. Sunahara, K. Nishihawra, T. Nishikawa, F. Koike, and H.Tanuma

Journal of Physics: Conference Series 112 42062 2008年4月

Advanced laser-produced EUV light source for HVM with conversion efficiency of 5-6% and B-field mitigation of ions (Invited Paper)

Katsunobu Nishihara, 間に8名, Takeshi Nishikawa, 後ろに7名

SPIE Advance Lithography 6921 ( 33 ) 2008年2月

レーザー生成スズプラズマからの極端紫外光発生の放射流体シミュレーション査読

砂原淳、佐々木明、田沼肇、西原功修、*西川亘、小池文博、藤岡慎介、青田達也、山浦道照、島田義則、西村博明、井澤靖和、宮永憲明、三間圀興

プラズマ・核融合学会誌 920 2007年4月

Theoretical and experimental databases for high average power EUV light source by laser produced plasma 査読

H. Nishimura, K. Nishihara, S. Fujioka, T. Aota, T. Ando, M. Shimomura, K. Sakaguchi, Y. Simada, M. Yamaura, K. Nagai, T. Norimatsu, A. Sunahara, M. Murakami, A. Sasaki, H. Tanuma, F. Koike, K. Fuijma, C. Suzuki, S. Morita, T. Kato, T. Kagawa, T. Nishikawa, N. Miyanaga, Y. Izawa, K. Mima

AIP Conference Proceedings 926 270 - 280 2007年

レーザープラズマによるEUVリソグラフィー用光源の開発

宮永憲明, 西村博明, 藤岡慎介, 青田達也, 西原功修, 村上匡且, 姜永光, 乗松孝好, 長井圭治, 中塚正大, 藤田尚徳, 椿本孝治, 吉田英次, 井澤靖和, 島田義則, 山浦道照, 砂原淳, 古河裕之, 望月孝晏, 宮本修治, 天野壮, 藤原閲夫, 岡田龍雄, 窪寺昌一, 東口武史, 小池文博, 佐々木明, 香川貴司, 藤間一美, 加藤隆子, 田沼肇, 西川亘, 三間圀興

レーザー研究 35 ( Supplement ) S13 - S14 2007年

Development of EUV light source by laser-produced plasma

Y. Izawa, N. Miyanaga, H. Nishimura, 間に12人 *T. Nishikawa, H. Tanuma, T. Norimatsu, K. Nagai, Q. Gu, M. Nakatsuka, H. Fujita, K. Tsubakimoto, H. Yoshida, and K. Mima

Journal de physique IV 133 1161 - 1165 2006年6月

Numerical analysis of energy trasport by intense resonance line in Lithium plasmas

*T. Nishikawa, K. Gamada, A. Sunahara, K. Nishihara

Journal de physique IV 2006年6月

Conversion efficiency of LPP sources

Katsunobu Nishihara, Akira Sasaki, Atsushi Sunahara, Takeshi Nishikawa

EUV Sources for Lithography 339 - 370 2006年2月

Progress in LPP EUV source development at Osaka University

Noriaki Miyanaga, Hiroaki Nishimura, Shinsuke Fujioka, Tatsuya Aota, Shigeaki Uchida, Michiteru Yamaura, Yoshinori Shimada, Kazuhisa Hashimoto, Keiji Nagai, Takayoshi Norimatsu, Katsunobu Nishihara, Masakatsu Murakami, Vasilli Zhakhovskii, Young Gwang Kang, Atsushi Sunahara, Hiroyuki Furukawa, Akira Sasaki, Takeshi Nishikawa, Masahiro Nakatsuka, Hisanori Fujita, Koji Tsubakimoto, Hidetsugu Yoshida, Yasukazu Izawa, Kunioki Mima

EMERGING LITHOGRAPHIC TECHNOLOGIES X, PTS 1 AND 2 6151 U567 - U574 2006年

Opacity Effect on Extreme Ultraviolet Radiation from Laser-Produced Tin Plasmas

S. Fujioka, H. Nishimura, K. Nishihara, 間に13人 *T. Nishikawa, N. Miyanaga, Y. Izawa, and K. Mima

Phys. Rev. Lett. 95 ( 23 ) 2005年12月

Characterization of extreme ultraviolet emission from laser-produced spherical tin plasma generated with multiple laser beams

Y. Shimada, H. Nishimura, M. Nakai, K. Hashimoto, M. Yamaura, Y. Tao, K. Shigemori, T. Okuno, K. Nishihara, T. Kawamura, A. Sunahara, *T. Nishikawa, et al.

APPLIED PHYSICS LETTERS 86 ( 5 ) 1 - 3 2005年1月

Estimations on high energy ions and neutral particles from LPP EUV light sources 査読

H. Furukawa, T. Kawamura, T. Nishikawa, A. Sasaki, K. Fujima, S. Fujioka, H. Nishimura, K. Nishihara, N. Miyanaga, Y. Izawa, C. Yamanaka

Progress in Biomedical Optics and Imaging - Proceedings of SPIE 5751 ( II ) 789 - 797 2005年

Effect of the satellite lines and opacity on the extreme ultraviolet emission from high density Xe plasmas

Akira Sasaki, Katsunobu Nishihara, Masakatsu Murakami, Fumihiro Koike, Takashi Kagawa, *Takeshi Nishikawa, Kazumi Fujima, Tohru Kawamura, Hiroyuki Furukawa

Applied Physics Letter 85 5857 - 5859 2004年12月

レーザー生成球対称Snプラズマからの極短紫外線(EUV)放射特性

西村博明25名20番目

プラズマ・核融合学会誌 2004年4月

Estimation of emission efficiency for laser-produced EUV-plasmas

Kawamura, K. Fujima, F. Koike, H. Furukawa, A. Sunahara, *T. Nishikawa, A. Sasaki, T. Kagawa, R. More, M. Murakami, V. Zhakhovskii, T. Fujimoto, H. Tanuma, K. Nishihara

Proc. SPIE 5374 ( PART 2 ) 918 - 925 2004年4月

Theoretical simulation of extreme UV radiation source for lithography

K. Fujima, K. Nishihara, T. Kawamura, H. Furukawa, T. Kagawa, F. Koike, R. More, M. Murakami, *T. Nishikawa, A. Sasaki, A. Sunahara, V. Zhakhovskii, T. Fujimoto, H. Tanuma

Proc. SPIE 2004年4月

Simulation of the EUV spectrum of Xe and Sn plasmas

Akira Sasaki, Katsunobu Nishihara, Fumihiro Koike, Takashi Kagawa, *Takeshi Nishikawa, Kazumi Fujima, Tohru Kawamura and Hiroyuki Furukawa

special issue of the IEEE, Journal of Selected Topics in Quantum Electronics on "Short wavelength and EUV Lasers" 2004年1月

Theoretical modeling of laser-produced plasmas for development of extreme UV radiation source for lithography 査読

Nishihara K, Nishikawa T, Sasaki A, Kawamura T, Sunahara A, Furukawa H, Murakami M, Nishimura H, Shimada Y, Nakai M, Fujioka S, Shigemori K, Uchida S, Fujima K, More R, Koike F, Kagawa T, Zhakhovskii V, Hashimoto K, Yamaura M, Matsui R, Hibino T, Okuno T, Tao Y, Sohnatzadeh F.L, Nagai K, Norimatsu T, Tanuma H, Miyanaga N, Izawa Y

Inertial Fusion Sciences and Applications 2003 1069 - 1073 2004年

Simple atomic model based on the plasma microfield

Takeshi NISHIKAWA

Proceedings of Second International Conference on Inertial Fusion Sciences and Applications 2001, September 9-14, 2001, Kyoto (IFSA2001) 2001年4月

Novel Laboratory Fusion Sources

T. Kenmotsu, *T. Nishikawa, R. More

Proceedings of Second International Conference on Inertial Fusion Sciences and Applications 2001, September 9-14, 2001, Kyoto (IFSA2001) 2001年4月

Energy level data recommendation by screening constant

Takeshi NISHIKAWA

Journal of Qunatitative Spectroscopy and Radiative Transfer 67 ( 1 ) 43 - 54 2000年10月

Simple Expression of Occupation Probability in the ``Chemical Picture''

Takeshi NISHIKAWA

The Astrophysical Journal 532 ( 1 ) 670 - 672 2000年3月

SOFT-X-RAY SPECTRA OF HIGHLY IONIZED ELEMENTS WITH ATOMIC NUMBERS RANGING FROM 57 TO 82 PRODUCED BY COMPACT LASERS

GM ZENG, H DAIDO, T NISHIKAWA, H TAKABE, S NAKAYAMA, H ARITOME, K MURAI, Y KATO, M NAKATSUKA, S NAKAI

JOURNAL OF APPLIED PHYSICS 75 ( 4 ) 1923 - 1930 1994年2月

COMPUTATIONAL MODEL FOR NON-LTE ATOMIC PROCESS IN LASER-PRODUCED PLASMAS

H TAKABE, T NISHIKAWA

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 51 ( 1-2 ) 379 - 395 1994年1月

PLASMA X-RAY SOURCE OF VARIOUS MATERIALS PRODUCED BY COMPACT SOLID-STATE LASERS

GM ZENG, H DAIDO, S NAKAYAMA, K MURAI, T NISHIKAWA, S KIYOKAWA, H TAKABE, H ARITOME, M NAKATSUKA, Y KATO, S NAKAI

APPLICATIONS OF LASER PLASMA RADIATION 2015 45 - 56 1994年

Line Profile Modeling for non-LTE partially ionized plasmas based on average atom model with l-splitting

Laser and Particle Beams 11 ( 1 ) 81 - 87 1993年

NON-LTE ATOMIC MODELING FOR LASER-PRODUCED PLASMAS

H TAKABE, S NAKAMURA, T NISHIKAWA

LASER AND PARTICLE BEAMS 11 ( 1 ) 119 - 126 1993年

Statistical Approach for Calculating Opacities of High-Z Plasmas

Journal Plasma Fusion Research 68,145 1992年

統計手法を用いた高Zプラズマの原子モデル

核融合研究 68,145 1992年

X-RAY-EMISSION AND TRANSPORT IN GOLD PLASMAS GENERATED BY 351-NM LASER IRRADIATION

H NISHIMURA, H TAKABE, K KONDO, T ENDO, H SHIRAGA, K SUGIMOTO, T NISHIKAWA, Y KATO, S NAKAI

PHYSICAL REVIEW A 43 ( 6 ) 3073 - 3085 1991年3月

ION KINETIC EFFECT ON FUSION REACTION-RATE

T NISHIKAWA, H TAKABE, K MIMA

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 28 ( 10 ) 2004 - 2010 1989年10月

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