論文 - 宇佐美 徳隆
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Investigation of the tunneling properties and surface morphologies of BaSi2/Si tunnel junctions for BaSi2 solar cell applications
W.Du, M.Baba, R.Takabe, N.Zhang, K.Toko, N.Usami, T.Suemasu
physica status solidi © 10 巻 頁: 1765-1768 2013年12月
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Fabrication of BaSi2 films on (111)-oriented Si layers formed by inverted Al-induced crystallization method on glass structure
R.Numata, K.Toko, N.Usami, T.Suemasu
physica status solidi © 10 巻 頁: 1769-1772 2013年12月
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Fabrication and characterizations of phosphorus-doped n-type BaSi2 epitaxial films grown by molecular beam epitaxy
R.Takabe, M.Baba, K.Nakamura, W.Du, M.A.Khan, S.Koike, K.Toko, K.O.Hara, N.Usami, T.Suemasu
physica status solidi © 10 巻 頁: 1753-1755 2013年12月
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Mechanism of strain relaxation in BaSi2 epitaxial films on Si(111) substrates during post-growth annealing and application for film exfoliation
K.O.Hara, N.Usami, K.Nakamura, R.Takabe, M.Baba, K.Toko, T.Suemasu
physica status solidi © 10 巻 頁: 1677-1680 2013年11月
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Determination of Bulk Minority-Carrier Lifetime in BaSi2 Earth-Abundant-Absorber Films by Utilizing a Drastic Enhancement of Carrier Lifetime by Post-Growth Annealing
K.O.Hara, N.Usami, K.Nakamura, R.Takabe, M.Baba, K.Toko, T.Suemasu
Applied Physics Express 6 巻 頁: 112302 2013年11月
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Determination of Bulk Minority-Carrier Lifetime in BaSi2 Earth-Abundant Absorber Films by Utilizing a Drastic Enhancement of Carrier Lifetime by Post-Growth Annealing
K.O.Hara, N.Usami, K.Nakamura, R.Takabe, M.Baba, K.Toko, T.Suemasu
Applied Physics Express 6 巻 ( 11 ) 頁: 112302 2013年10月
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Theory of open-circuit voltage and the driving force of charge separation in pn-junction solar cells
K.O.Hara, N.Usami
Journal of Applied Physics 114 巻 頁: 153101 2013年10月
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Evaluation of potential variations around grain boundaries in BaSi2 epitaxial films by Kelvin probe force microscopy
M.Baba, S.Tsurekawa, K.Watanabe, W.Du, K.Toko, K.O.Hara, N.Usami, T.Sekiguchi, T.Suemasu
Applied Physics Letters 103 巻 頁: 142113 2013年9月
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Investigation of the open-circuit voltage in solar cells doped with quantum dots
T.Tayagaki, Y.Hoshi, N.Usami
Scientific Reports 3 巻 頁: 2703 2013年9月
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Control of Grain Boundary Propagation in Mono-Like Si: Utilization of Functional Grain Boundaries
K.Kutsukake, N.Usami, Y.Ohno, Y.Tokumoto, I.Yonenaga
Applied Physics Express 6 巻 頁: 025505 2013年9月
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Effect of atomic-hydrogen irradiation on reduction of residual carrier concentration in β-FeSi2 films grown on Si substrates by atomic-hydrogen-assisted molecular beam epitaxy
Y.Funase, M.Suzuno, K.Toko, K.O.Hara, N.Usami, N.Saito, N.Yoshizawa, T.Suemasu
Journal of Crystal Growth 378 巻 頁: 365-367 2013年9月
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Enhancement of light emission from Ge quantum dots by photonic crystal nanocavities at room-temperature
XJ.Xu, N.Usami, T.Maruizumi, Y.Shiraki
JOURNAL OF CRYSTAL GROWTH 378 巻 頁: 636-639 2013年9月
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On the origin of the uniaxial strain induced in Si/Ge heterostructures with selective ion implantation technique
K.Sawano, Y.Hoshi, S.Nagakura, K.Arimoto, K.Nakagawa, N.Usami, Y.Shiraki
JOURNAL OF CRYSTAL GROWTH 378 巻 頁: 251-253 2013年9月
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Molecular beam epitaxy of boron doped p-type BaSi2 epitaxial films on Si(111) substrates for thin-film solar cells
M.A.Khan, K.O.Hara, K.Nakamura, W.J.Du, M.Baba, K.Toh, M.Suzuno, K.Toko, N.Usami, T.Suemasu
JOURNAL OF CRYSTAL GROWTH 378 巻 頁: 201-204 2013年9月
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Large photoresponsivity in semiconducting BaSi2 epitaxial films grown on Si(001) substrates by molecular beam epitaxy
S.Koike, K.Toh, M.Baba, K.Toko, K.O.Hara, N.Usami, N.Saito, N.Yoshizawa, T.Suemasu
JOURNAL OF CRYSTAL GROWTH 378 巻 頁: 198-200 2013年9月
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Gas-source MBE growth of strain-relaxed Si1-xCx on Si(100) substrates
K.Arimoto, S.Sakai, H.Furukawa, J.Yamanaka, K.Nakagawa, N.Usami, Y.Hoshi, K.Sawano, Y.Shiraki
JOURNAL OF CRYSTAL GROWTH 378 巻 頁: 212-217 2013年9月
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Formation of large-grain-sized BaSi2 epitaxial layers grown on Si(111) by molecular beam epitaxy
M.Baba, K.Toh, K.Toko, K.O.Hara, N.Usami, N.Saito, N.Yoshizawa, T.Suemasu
JOURNAL OF CRYSTAL GROWTH 378 巻 頁: 193-197 2013年9月
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Large-Grained Polycrystalline (111) Ge Films on Insulators by Thickness-Controlled Al-Induced Crystallization
K. Nakazawa, K. Toko, N. Saitoh, N.Usami and T. Suemasu
Ecs Journal of Solid State Science and Technology 2 巻 ( 11 ) 頁: Q195-Q199 2013年8月
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Control of Dip Shape in Photonic Nanostructures by Maskless Wet-Etching Process and Its Impact on Optical Properties
Y.Hoshi, WG.Pan, T.Kiguchi, K.Ooi, T.Tayagaki, N.Usami
JAPANESE JOURNAL OF APPLIED PHYSICS 52 巻 ( 8 ) 頁: UNSP 080202 2013年8月
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Double-Layered Ge Thin Films on Insulators Formed by an Al-Induced Layer-Exchange Process
K.Toko, K.Nakazawa, N.Saitoh, N.Yoshizawa, N.Usami, T.Suemasu
Crystal Growth & Design 13 巻 ( 9 ) 頁: 3908-3912 2013年7月