Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Tomoaki Ide"'
Autor:
Keigo Takeda, Tomoaki Ide, Kazunori Koga, Daisuke Yamashita, Naho Itagaki, Hyunwoong Seo, Koichi Matsushima, Masaru Hori, Masaharu Shiratani
Publikováno v:
IEEE Transactions on Plasma Science. 45:323-327
We report densities and surface reaction probabilities of O and N atoms during sputter deposition of ZnInON films on ZnO templates, measured via vacuum ultraviolet absorption spectroscopy. O density is almost constant of $4.5 \times 10^{11}$ cm−3 i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::688b81d77c3413b1bdcd31bdb46b43f5
https://doi.org/10.1109/tps.2016.2632124
https://doi.org/10.1109/tps.2016.2632124
Autor:
Naho Itagaki, Koichi Matsushima, Masaharu Shiratani, Hyunwoong Seo, Tomoaki Ide, Kazunori Koga, Daisuke Yamashita
Publikováno v:
MRS Advances. 1:115-119
We study effects of deposition temperature on growth mode and surface morphology of hetero-epitaxial (ZnO)x(InN)1-x (ZION) films on ZnO templates. ZION films deposited at low temperature of RT-250oC grow two dimensionally, whereas ZION films deposite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71455c5a27831cec1015069342d5cdf4
https://doi.org/10.1557/adv.2015.59
https://doi.org/10.1557/adv.2015.59
Autor:
Masaharu Shiratani, Tomoaki Ide, Hyunwoong Seo, Koichi Matsushima, Ryota Shimizu, Kazunori Koga, Naho Itagaki, Daisuke Yamashita
Publikováno v:
Thin Solid Films. 587:106-111
We report on fabrication and photovoltaic characteristics of solar cells with ZnInON/ZnO multi-quantum wells (MQWs) in the intrinsic layer of p-i-n structure by RF magnetron sputtering. We employed two kinds of p layers: one is p-GaN and the other is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45d307167299a84e8be14a2ca9157a1d
https://doi.org/10.1016/j.tsf.2015.01.012
https://doi.org/10.1016/j.tsf.2015.01.012
Publikováno v:
Molecular Catalysis. 475:110488
NO direct decomposition on Y2O3 based oxide was studied and it was found that doping Ba and Ni simultaneously in Y2O3 is effective for achieving the high NO decomposition activity. The optimized amount for Ni and Ba doping is 5 and 0.5–1 mol%, resp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2295fde1e93fec80a54b521f305f6d81
https://doi.org/10.1016/j.mcat.2019.110488
https://doi.org/10.1016/j.mcat.2019.110488
Autor:
Ryota Shimizu, Kazunori Koga, Hyunwoong Seo, Koichi Matsushima, Naho Itagaki, Daisuke Yamashita, Masaharu Shiratani, Tomoaki Ide
Publikováno v:
MRS Proceedings. 1741
We succeeded in photovoltaic power generation of p-i-n solar cells utilizing epitaxial ZnInON film with a wide band gap of 3.1 eV as the intrinsic layer, suitable for a top cell of tandem solar cells. The solar cell shows a high open circuit voltage
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7efaf6d18d21cb6bb9f04f81b096069e
https://doi.org/10.1557/opl.2015.248
https://doi.org/10.1557/opl.2015.248
Autor:
Tomoaki Ide, Koichi Matsushima, Ryota Shimizu, Masaharu Shiratani, Hyunwoong Seo, Daisuke Yamashita, Naho Itagaki, Kazunori Koga
Publikováno v:
MRS Proceedings. 1741
Effects of surface morphology of buffer layers on ZnO/sapphire heteroepitaxial growth have been investigated by means of “nitrogen mediated crystallization (NMC) method”, where the crystal nucleation and growth are controlled by absorbed nitrogen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cb26f2d7caab66c8793bb919f16927c
https://doi.org/10.1557/opl.2015.87
https://doi.org/10.1557/opl.2015.87
Publikováno v:
2013 IEEE Antennas and Propagation Society International Symposium (APSURSI).
We have examined application of a planar patch array antenna to a multi-beam antenna of dielectric lens. Under several constraints of structure, the lens shape has been designed by the multi-objective genetic algorithm. We demonstrate that the design
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcef881fa0ce7e9be6007d05f8d970e0
https://doi.org/10.1109/aps.2013.6711689
https://doi.org/10.1109/aps.2013.6711689
Publikováno v:
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A. 55:639-645
The behavior of a pure copper subject to pure creep and cyclic creep under an imposed load is examined at room temperature, and at 250, 300, 350, 400 and 450°C to show the relation between these two kinds of phenomena. Formulating the cyclic creep b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59e7638aa76d2ec16994f7581ae3b2b5
https://doi.org/10.1299/kikaia.55.639
https://doi.org/10.1299/kikaia.55.639