Keywords
Profile
ISHIKAWA Ryo
| ■Faculty: | Graduate School of Science and Engineering | ■TEL: | ||
| ■Position: | Assistant Professor | ■FAX: | ||
| ■Address: | 255 Shimo-Okubo, Sakura-ku, Saitama City, Saitama 338-8570, JAPAN | ■Mail Address: | ||
| ■Web site: |
Profile
Assigned Class
- Faculty of Engineering
Academic Societies
- Academic Societies
- The Japan Society of Applied Physics
Academic Background
- Degree
- Doctor of Science , Saitama University
Research
Books, Articles, etc.
- Articles
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Coherent optical response driven by non-equilibrium electron–phonon dynamics in a layered transition-metal dichalcogenide
,APL Materials,12(2):021102 2024
Fukuda, Takumi Makino, Kotaro Saito, Yuta Fons, Paul Ando, Atsushi Mori, Takuya Ishikawa, Ryo Ueno, Keiji Afalla, Jessica Hase, Muneaki -
Ultrafast melting of charge-density wave fluctuations at room temperature in 1T-TiSe2 monitored under non-equilibrium conditions
,Applied Physics Letters,122(24):243101 2023
Mizukoshi, Yu Fukuda, Takumi Komori, Yuta Ishikawa, Ryo Ueno, Keiji Hase, Muneaki -
自己偏析を活用した ペロブスカイト太陽電池の高性能化
,光技術コンタクト,60:21-28 2022
石川 良，白井 肇 -
静電相互作用を用いた凹凸基板上への電子輸送層の形成と ペロブスカイト太陽電池への応用
,光アライアンス,33(12):49-52 2022
石川 良，白井 肇 -
Improved efficiency of methylammonium-free perovskite thin film solar cells by fluorinated ammonium iodide treatment
,Organic Electronics,78:105596 2020
Ryo Ishikawa, Keiji Ueno, Hajime Shirai -
Self-assembled Fluorinated Polymer Passivation Layer for Efficient Perovskite Thin-film Solar Cells
,Chemistry Letters,49(1):87-90 2020
Yuma Moriya, Ryo Ishikawa, Shuhei Akiyama, Keiji Ueno, Hajime Shirai -
Effect of thermally annealed atomic-layer-deposited AlOx/chemical tunnel oxide stack layer at the PEDOT:PSS/n-type Si interface to improve its junction quality
,Journal of Applied Physics,128:045305 2020
Md Enamul Karim, Yuki Nasuno, Abdul Kuddus, Tomofumi Ukai, Shunji Kurosu, Masahide Tokuda, Yasuhiko Fujii, Tatsuro Hanajiri, Ryo Ishikawa, Keiji Ueno, Hajime Shirai -
Synthesis of AlOx thin films by atmospheric-pressure mist chemical vapor deposition for surface passivation and electrical insulator layers
,Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films,38:033413 2020
Arifuzzaman Rajib, Karim Md Enamul, Shunji Kurosu, Tomofumi Ukai, Masahide Tokuda, Yasuhiko Fujii, Tatsuro Hanajiri, Ryo Ishikawa, Keiji Ueno, Hajime Shirai -
Improved efficiency of methylammonium-free perovskite thin film solar cells by fluorinated ammonium iodide treatment
,Organic Electronics,78(March 2020):105596 2020
RyoIshikawa, KeijiUeno, HajimeShirai -
Self-assembled Fluorinated Polymer Passivation Layer for Efficient Perovskite Thin-film Solar Cells
,Chemistry Letters,49(1):87-90 2020
Yuma Moriya ,Ryo Ishikawa ,Shuhei Akiyama ,Keiji Ueno and Hajime Shirai -
Role of the solvent in large crystal grain growth of inorganic-organic halide FA0.8Cs0.2PbIxBr3 − x perovskite thin films monitored by ellipsometry
,Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena,37(6):062401 2019
Koki Kawamura, Ryo Ishikawa, Yoko Wasai, Nataliya Nabatova-Gabain, Shun-ji Kurosu, Tomofumi Ukai, Masahide Tokuda, Yasuhiko Fujii, Tatsuo Hanajiri, Keiji Ueno, Hajime Shirai -
Highly crystalline large-grained perovskite films using two additives without an antisolvent for high-efficiency solar cells
,Thin Solid Films,679:27-34 2019
Ryo Ishikawa, Keiji Ueno, Hajime Shirai -
Role of the solvent in large crystal grain growth of inorganic-organic halide FA0.8Cs0.2PbIxBr3 − x perovskite thin films monitored by ellipsometry
,Journal of Vacuum Science & Technology B,37(6):062401 2019
Koki Kawamura, Ryo Ishikawa, Yoko Wasai, Nataliya Nabatova-Gabain, Shun-ji Kurosu3Tomofumi Ukai, Masahide Tokuda. Yasuhiko Fujii, Tatsuro Hanajiri, Keiji Ueno, and Hajime Shirai -
Thiocyanate Containing Two-Dimensional Cesium Lead Iodide Perovskite, Cs2PbI2(SCN)2: Characterization, Photovoltaic Application, and Degradation Mechanism
,ACS Appl. Mater. Interfaces,10:42363-42371 2018
Youhei Numata, Yoshitaka Sanehira, Ryo Ishikawa, Hajime Shirai, Tsutomu Miyasaka -
Fabrication of [CH(NH2)2]0.8Cs0.2PbI3 Perovskite Thin Films for n-i-p Planar-structure Solar Cells by a One-step Method Using 1-Cyclohexyl-2-pyrrolidone as an Additive
,Chemistry Letters,47:905-908 2018
Ryo Ishikawa, Keiji Ueno, Hajime Shirai -
Nb-doped amorphous titanium oxide compact layer for formamidinium-based high efficiency perovskite solar cells by low-temperature fabrication
,Journal of Materials Chemistry A,6:9583-9591 2018
Youhei Numata, Ryo Ishikawa, Yoshitaka Sanehira, Atsushi Kogo, Hajime Shirai, Tsutomu Miyasaka -
Barium hydroxide hole blocking layer for front- and back-organic/crystalline Si heterojunction solar cells
,Journal of Applied Physics,122:055101 2017
Jaker Hossain, Koji Kasahara, Daisuke Harada, A. T. M. Saiful Islam, Ryo Ishikawa, Keiji Ueno, Tatsuro Hanajiri, Yoshikata Nakajima, Yasuhiko Fujii, Masahide Tokuda, and Hajime Shirai -
Fabrication of {CH(NH2)2}1−xCsxPbI3 Perovskite Thin Films by Two-step Method and Its Application to Thin Film Solar Cells
, Chemistry Letters,46(4):612-615 2017
Ryo Ishikawa ,Keiji Ueno and Hajime Shirai -
sciencedirect.com の [HTML] Crystalline-Si heterojunction with organic thin-layer (HOT) solar cell module using poly (3, 4-ethylenedioxythiophene): poly (styrene sulfonate)(PEDOT: PSS)
,Solar Energy Materials and Solar Cells 2017
Koji Kasahara, Jaker Hossain, Daisuke Harada, Koki Ichikawa, Ryo Ishikawa, Hajime Shirai -
Fabrication of {CH(NH2)2}1-xCsxPbI3 perovskite thin films by two-step method and its application to thin film solar cells
,Chemistry Letters ,46(4):612-615 2016
Ryo Ishikawa, Keiji Ueno,and Hajime Shirai -
Nafion-Modified PEDOT:PSS as a Transparent Hole-Transporting Layer for High-Performance Crystalline-Si/Organic Heterojunction Solar Cells with Improved Light Soaking Stability
,ACS Applied Materials & Interfaces ,8(46):31926–31934 2016
Jaker Hossain, Qiming Liu, Takuya Miura, Koji Kasahara, Daisuke Harada, Ryo Ishikawa, Keiji Ueno, and Hajime Shirai -
Role of Isopropyl Alcohol Solvent in the Synthesis of Organic–Inorganic Halide CH(NH2)2PbIxBr3–x Perovskite Thin Films by a Two-Step Method
,J. Phys. Chem. C 120 (2016) 25371–25377,120(44):25371–25377 2016
Takanori Yamanaka, Kenta Masumori, Ryo Ishikawa, Keiji Ueno, and Hajime Shirai -
Effect of substrate bias on mist deposition of conjugated polymer on textured crystalline-Si for efficient c-Si/organic heterojunction solar cells
,physica status solidi (a),213(7):1922–1925 2016
Tatsuya Ohki, Koki Ichikawa, Jaker Hossain, Yasuhiko Fujii, Tatsuro Hanajiri, Ryo Ishikawa, Keiji Ueno, Hajime Shirai -
Highly Efficient Solution-Processed Poly(3,4-ethylenedio-xythiophene):Poly(styrenesulfonate)/Crystalline?Silicon Heterojunction Solar Cells with Improved Light-Induced Stability
,Advanced Energy Materials,5:DOI: 10.1002/aenm.201500744 2015
Qiming Liu, Ryo Ishikawa, Shuji Funada, Tatsuya Ohki, Keiji Ueno, Hajime Shirai -
Double resonance Raman modes in monolayer and few-layer MoTe2
,PHYSICAL REVIEW B,91:205415 2015
Huaihong Guo, Teng Yang, Mahito Yamamoto, Lin Zhou, Ryo Ishikawa, Keiji Ueno, Kazuhito Tsukagoshi, Zhidong Zhang, Mildred S. Dresselhaus, and Riichiro Saito -
Efficient organic/polycrystalline silicon hybrid solar cells
,Nano Energy,11:260-266 2015
Qiming Liu, Tatsuya Ohki, Dequan Liu, Hiromitsu Sugawara, Ryo Ishikawa, Keiji Ueno, Hajime Shirai -
Real-time measurement of optical anisotropy during film growth using a chemical mist deposition of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)
,Journal of Applied Physics,115:123514 2014
Taiga Hiate, Naoto Miyauchi, Qiming Liu, Ryo Ishikawa, Keiji Ueno and Hajime Shirai -
Self-assembled silver nanowires as top electrode for poly(3,4-ethylenedioxythiophene):poly(stylenesulfonate)/n-silicon solar cell
,Thin Solid Films,558:306-310 2014
Ishwor Khatri, Ayo Hoshino, Fumiya Watanabe, Qiming Liu, Ryo Ishikawa, Keiji Ueno, Hajime Shirai -
Self assembled silver nanowire mesh as top electrode for organic–inorganic hybrid solar cell
,Canadian Journal of Physics,925(7/8):867-870 2014
Ishwor Khatri, Qiming Liu, Ryo Ishikawa, Keiji Ueno, Hajime Shirai -
Improved photovoltaic performance of crystalline-Si/organic Schottky junction solar cells using ferroelectric polymers
,Applied Physics Letters,106:163503 2013
Q. Liu, . Khatri, R. Ishikawa, A. Fujimori, K. Ueno, K. Manabe, H. Nishino, and H. Shirai Citation: -
Effects of molybdenum oxide molecular doping on the chemical structure of poly(3,4-ethylenedioxythiophene):poly(stylenesulfonate) and on carrier collection efficiency of silicon/poly(3,4-ethylenedioxythiophene):poly(stylenesulfonate) heterojunction solar
,Applied Physics Letters,102:183503 2013
Liu, Qiming Khatri, Ishwor Ishikawa, Ryo Ueno, Keiji Shirai, Hajime -
Increased Organic Photovoltaic Cell Efficiency by Incorporating a Nonionic Fluorinated Surfactant Cathode Interlayer
,Applied Physics Express,5(12):121601 2012
Ryo Ishikawa, Hajime Shirai, and Keiji Ueno - Presentation
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Nafion-Modified PEDOT:PSS/c-Si Solar Cells
第77回応用物理学会秋季学術講演会:15p-P13-2 201609
Qiming Liu、Jaker Hossain、Takuya Miura、Daisuke Harada、Ryo Ishikawa、Keiji Ueno、Hajime Shirai