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Akira Nagaoka · SciRah

Researcher profile · Semantic Scholar

Akira Nagaoka

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Akira Nagaoka — researcher profile on SciRah

h-index: 20
Works: 82
Citations: 1,059

Most-cited papers

Effects of sodium on electrical properties in Cu2ZnSnS4 single crystal
Akira Nagaoka, H. Miyake, T. Taniyama, K. Kakimoto +3 more
2014119 citations
Semantic Scholar
Correlation between intrinsic defects and electrical properties in the high-quality Cu2ZnSnS4 single crystal
Akira Nagaoka, H. Miyake, T. Taniyama, K. Kakimoto +1 more
201373 citations
Semantic Scholar
Preparation of Cu2ZnSnS4 single crystals from Sn solutions
Akira Nagaoka, K. Yoshino, H. Taniguchi, T. Taniyama +1 more
201271 citations
Semantic Scholar
Evaluation of hydrogen absorption behaviour during acid etching for surface modification of commercial pure Ti, Ti–6Al–4V and Ni–Ti superelastic alloys
Akira Nagaoka, K. Yokoyama, J. Sakai
201047 citations
Semantic Scholar
High p-type doping, mobility, and photocarrier lifetime in arsenic-doped CdTe single crystals
Akira Nagaoka, D. Kuciauskas, J. McCoy, M. Scarpulla
201846 citations Open access
Semantic Scholar
Photocarrier localization and recombination dynamics in Cu[2]ZnSnS[4] single crystals
L. Phuong, M. Okano, Y. Yamada, Akira Nagaoka +2 more
201342 citations Open access
Semantic Scholar
Topological Insulator-Based van der Waals Heterostructures for Effective Control of Massless and Massive Dirac Fermions.
S. Chong, K. Han, Akira Nagaoka, R. Tsuchikawa +7 more
2018Nano letters (Print)41 citations Open access
Semantic Scholar
Doping properties of cadmium-rich arsenic-doped CdTe single crystals: Evidence of metastable AX behavior
Akira Nagaoka, D. Kuciauskas, M. Scarpulla
201741 citations Open access
Semantic Scholar
Growth of Cu2ZnSnSe4 single crystals from Sn solutions
Akira Nagaoka, K. Yoshino, H. Taniguchi, T. Taniyama +1 more
201241 citations
Semantic Scholar
Comparison of Sb, As, and P doping in Cd-rich CdTe single crystals: Doping properties, persistent photoconductivity, and long-term stability
Akira Nagaoka, K. Nishioka, K. Yoshino, R. Katsube +3 more
202038 citations Open access
Semantic Scholar
Enhancement in surface mobility and quantum transport of Bi2−xSbxTe3−ySey topological insulator by controlling the crystal growth conditions
K. Han, Su-Kong Chong, A. Oliynyk, Akira Nagaoka +4 more
2018Scientific Reports29 citations Open access
Semantic Scholar
Temperature-dependent photocarrier recombination dynamics in Cu2ZnSnS4 single crystals
L. Phuong, M. Okano, Y. Yamada, Akira Nagaoka +2 more
201428 citations Open access
Semantic Scholar
Growth and characterization of Cu2ZnSnS4 single crystals
Akira Nagaoka, K. Yoshino, H. Taniguchi, T. Taniyama +2 more
201328 citations
Semantic Scholar
Growth and characterization of Arsenic doped CdTe single crystals grown by Cd-solvent traveling-heater method
Akira Nagaoka, K. Han, S. Misra, Thomas Wilenski +2 more
201725 citations Open access
Semantic Scholar
Ultrafast free-carrier dynamics in Cu2ZnSnS4 single crystals studied using femtosecond time-resolved optical spectroscopy
L. Phuong, M. Okano, Yoshiharu Yamada, Genki Yamashita +6 more
201424 citations Open access
Semantic Scholar
Growth of Cu2ZnSnS4 Single Crystal by Traveling Heater Method
Akira Nagaoka, K. Yoshino, H. Taniguchi, T. Taniyama +1 more
201123 citations Open access
Semantic Scholar
Free-carrier dynamics and band tails in Cu[2] ZnSn (S[x]Se[1−x] )[4] : Evaluation of factors determining solar cell efficiency
L. Phuong, M. Okano, Genki Yamashita, M. Nagai +4 more
201522 citations
Semantic Scholar
Polarized Raman spectroscopy of Cu-poor and Zn-rich single-crystal Cu2ZnSnSe4
D. Nam, Jungcheol Kim, Jae-Ung Lee, Akira Nagaoka +6 more
201422 citations
Semantic Scholar
Growth and characterization of Cu2ZnSn(SxSe1−x)4 alloys grown by the melting method
Akira Nagaoka, K. Yoshino, H. Taniguchi, T. Taniyama +2 more
201422 citations
Semantic Scholar
Effects of the hydrogen absorption conditions on the hydrogen embrittlement behavior of Ni-Ti superelastic alloy
K. Yokoyama, Akira Nagaoka, J. Sakai
201222 citations Open access
Semantic Scholar
Direct Observation of Group-V Dopant Substitutional Defects in CdTe Single Crystals.
Akira Nagaoka, K. Kimura, A. Ang, Y. Takabayashi +6 more
2023Journal of the American Chemical Society20 citations
Semantic Scholar
Thermo-physical properties of Cu2ZnSnS4 single crystal
Akira Nagaoka, K. Yoshino, K. Aoyagi, T. Minemoto +4 more
201420 citations
Semantic Scholar
Arsenic doped Cd-rich CdTe: equilibrium doping limit and long lifetime for high open-circuit voltage solar cells greater than 900 mV
Akira Nagaoka, K. Nishioka, K. Yoshino, D. Kuciauskas +1 more
2019Applied Physics Express18 citations Open access
Semantic Scholar
Na-doped Cu2ZnSnS4 single crystal grown by traveling-heater method
Akira Nagaoka, M. Scarpulla, K. Yoshino
201618 citations Open access
Semantic Scholar
The single-crystal multinary compound Cu2ZnSnS4 as an environmentally friendly high-performance thermoelectric material
Akira Nagaoka, T. Masuda, S. Yasui, T. Taniyama +1 more
201817 citations Open access
Semantic Scholar
Photocarrier dynamics in undoped and Na-doped Cu2ZnSnS4 single crystals revealed by ultrafast time-resolved terahertz spectroscopy
L. Phuong, M. Okano, Genki Yamashita, M. Nagai +4 more
201517 citations Open access
Semantic Scholar
Growth of CuSbS2 Single Crystal as an Environmentally Friendly Thermoelectric Material
Akira Nagaoka, Manato Takeuchi, K. Yoshino, S. Ikeda +3 more
2019Physica Status Solidi (a)15 citations
Semantic Scholar
Environmentally friendly thermoelectric sulphide Cu2ZnSnS4 single crystals achieving a 1.6 dimensionless figure of merit ZT
Akira Nagaoka, K. Yoshino, T. Masuda, Taylor D. Sparks +2 more
202114 citations
Semantic Scholar
Phase diagram of the Ag2SnS3–ZnS pseudobinary system for Ag2ZnSnS4 crystal growth
Akira Nagaoka, K. Yoshino, K. Kakimoto, K. Nishioka
202113 citations
Semantic Scholar
Growth and characterization of indium-doped Zn3P2 bulk crystals
R. Katsube, Hiroyuki Hayashi, Akira Nagaoka, K. Yoshino +2 more
201611 citations
Semantic Scholar
Growth and characterization of Cu 2 ZnSn(S x Se 1-x ) 4 single crystal grown by traveling heater method
Akira Nagaoka, R. Katsube, S. Nakatsuka, K. Yoshino +5 more
201511 citations Open access
Semantic Scholar
Review on Group-V Doping in CdTe for Photovoltaic Application
Akira Nagaoka, Santosh K. Swain, Amit H. Munshi
2024IEEE Journal of Photovoltaics10 citations
Semantic Scholar
n-type kesterite thermoelectric (Cu1−xAgx)2ZnSnS4 single crystals exceeding dimensionless figure of merit value of 1.0
Akira Nagaoka, Shoma Miura, Koki Nakashima, Yuichi Hirai +3 more
2024Applied Physics Letters9 citations
Semantic Scholar
Solution growth of chalcopyrite compounds single crystal
Akira Nagaoka, Y. Nose, H. Miyake, M. Scarpulla +1 more
20159 citations
Semantic Scholar
Cation ratio fluctuations in Cu2ZnSnS4 at the 20 nm length scale investigated by analytical electron microscopy
J. Aguiar, M. E. Erkan, Dennis S. Pruzan, Akira Nagaoka +4 more
20168 citations
Semantic Scholar
Controlling the conduction type in a thermoelectric material (Cu1-xAgx)2ZnSnS4
K. Okamoto, Akira Nagaoka, Katsuma Nagatomo, K. Yoshino +2 more
2022Journal of Physics and Chemistry of Solids7 citations Open access
Semantic Scholar
Physicochemical insights into semiconductor properties of a semitransparent tantalum nitride photoanode for solar water splitting.
T. Higashi, H. Nishiyama, Y. Pihosh, Kaisei Wakishima +6 more
2023Physical Chemistry, Chemical Physics - PCCP6 citations
Semantic Scholar
Photoelectrochemical properties of p-type CuBi2O4 prepared by spray pyrolysis of carbon-free precursor aqueous solution combined with post-annealing treatment
Kaisei Wakishima, Tomohiro Higashi, Akira Nagaoka, Kenji Yoshino
2023New Journal of Chemistry5 citations
Semantic Scholar
Growth and Characterization of Arsenic-Doped CdTe1−xSex Single Crystals Grown by the Cd-Solvent Traveling Heater Method
Akira Nagaoka, K. Nishioka, K. Yoshino, D. Kuciauskas +1 more
2020Journal of Electronic Materials4 citations Open access
Semantic Scholar
Effects of chalcogen composition on the thermoelectric properties in Cu2ZnSn(S1−xSex)4 single crystals
Akira Nagaoka, T. Masuda, S. Yasui, T. Taniyama +1 more
2018Japanese Journal of Applied Physics4 citations
Semantic Scholar
Chalcostibite Single-Crystal CuSbS2 as High-Performance Thermoelectric Material
Akira Nagaoka, Manato Takeuchi, Yusuke Shigeeda, Koki Kamimizutaru +2 more
20203 citations Open access
Semantic Scholar
The Effect Of Chloride Ion and Dissolved Oxygen Concentration On Passivation pH of SUS304 Stainless Steel
Akira Nagaoka, R. Matsuhashi, Kiyomi Nose, K. Matsuoka +1 more
20203 citations Open access
Semantic Scholar
Solution growth of chalcopyrite Cu(In1−xGax)Se2 single crystals for high open-circuit voltage photovoltaic device
Akira Nagaoka, Yusuke Shigeeda, K. Nishioka, T. Masuda +1 more
2021High Temperature Materials and Processes2 citations Open access
Semantic Scholar
Temperature Dependence of Linear Thermal Expansion of CuGaSe2 Crystals
Akira Nagaoka, K. Yoshino, T. Taniyama, H. Miyake
20122 citations Open access
Semantic Scholar
Peculiarities of Linear Thermal Expansion of CuInS2 Single Crystals
Akira Nagaoka, K. Yoshino, T. Taniyama, H. Miyake
20112 citations Open access
Semantic Scholar
Growth and thermoelectric characterization of chalcopyrite ZnSnSb2 with pseudocubic structure
Yusuke Shigeeda, Akira Nagaoka, K. Yoshino, K. Nishioka
2021Journal of Physics and Chemistry of Solids1 citations Open access
Semantic Scholar
Erratum: “Arsenic doped Cd-rich CdTe: equilibrium doping limit and long lifetime for high open-circuit voltage solar cells greater than 900 mV” [Appl. Phys. Express 12, 081002 (2019)]
Akira Nagaoka, K. Nishioka, K. Yoshino, D. Kuciauskas +1 more
2019Applied Physics Express1 citations Open access
Semantic Scholar
Group-V doping impact on Cd-rich CdTe single crystals grown by traveling-heater method
Akira Nagaoka, K. Yoshino, Y. Nose, D. Kuciauskas +1 more
20171 citations
Semantic Scholar
Growth of CZTS Single Crystals
Akira Nagaoka, K. Yoshino
20151 citations
Semantic Scholar
Photoelectrical properties of undoped and Na-doped Cu2ZnSnS4 single crystals measured by optical time-resolved spectroscopy
L. Phuong, M. Okano, Y. Yamada, Akira Nagaoka +2 more
2015Photovoltaic Specialists Conference1 citations
Semantic Scholar

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K. Nishioka — researcher profile on SciRah

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L. Phuong — researcher profile on SciRah

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