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- Kaoru Toko
- 17th IEEE International Conference on Micro…
- 2004
A taste sensor with global selectivity, i.e., electronic tongue, is composed of several kinds of lipid/polymer membranes for transforming information of taste substances into electronic signal. The… (More)
- Kosuke Hara, Noritaka Usami, +4 authors Takashi Suemasu
- 2013 IEEE 39th Photovoltaic Specialists…
- 2013
We have found that post-growth annealing of BaSi<sub>2</sub> epitaxial films drastically modifies carrier-recombination kinetics. In fact, the 1/e decay time of excess carriers in 1640-nm-thick… (More)
- Ryota Takabe, Kaoru Toko, Takashi Suemasu
- 2016 Compound Semiconductor Week (CSW) [Includes…
- 2016
We fabricated 850-nm-thick BaSi<sub>2</sub> films on p-Ge(111) substrates by molecular beam epitaxy using the template grown by solid phase epitaxy (SPE), and characterized their crystalline… (More)
- Ryota Takabe, Hiroki Takeuchi, +5 authors Takashi Suemasu
- 2016 IEEE 43rd Photovoltaic Specialists…
- 2016
We fabricated native oxide/BaSi<sub>2</sub> and amorphous Si(a-Si, 5 nm) structures on n-Si(111) by molecular beam epitaxy and evaluated the band alignments at the interfaces by x-ray photoelectron… (More)
- Suguru Yachi, Ryota Takabe, Daichi Tsukahara, Hiroki Takeuchi, Kaoru Toko, Takashi Suemasu
- 2016 Compound Semiconductor Week (CSW) [Includes…
- 2016
Summary form only given. We fabricated p-BaSi<sub>2</sub>/n-Si solar cells by forming a 20-nm-thick B-doped p-BaSi<sub>2</sub> epitaxial layer (p = 2.2 × 10<sup>18</sup> cm<sup>-3</sup>) on an… (More)
- Kaoru Toko, Ryota Yoshimine, Kenta Moto, Takashi Suemasu
- Scientific Reports
- 2017
High-carrier mobility semiconductors on insulators are essential for fabricating advanced thin-film transistors, allowing for three-dimensional integrated circuits or high-performance mobile… (More)
- Weijie Du, Masakazu Baba, Kaoru Toko, Noritaka Usami, Takashi Suemasu
- 2014 IEEE 40th Photovoltaic Specialist Conference…
- 2014
An n-BaSi<sub>2</sub>/p-Si hetero-junction has been successfully fabricated by molecular beam epitaxy (MBE) of the undoped n-BaSi<sub>2</sub> layer on the p-Si substrate. The θ-2θ x-ray… (More)
- Weijie Du, Masakazu Baba, +5 authors Takashi Suemasu
- 2014 21st International Workshop on Active-Matrix…
- 2014
Current status and future prospects towards BaSi<sub>2</sub> pn junction solar cells are presented. As a preliminary step toward forming a BaSi<sub>2</sub> pn junction diode, a Cr/n-BaSi<sub>2</sub>… (More)
- Masakazu Baba, Kosuke Hara, +7 authors Takashi Suemasu
- 2014 IEEE 40th Photovoltaic Specialist Conference…
- 2014
Grain boundaries (GBs) and crystalline quality of semiconducting BaSi<sub>2</sub> films grown on polycrystalline Si (pc-Si) substrates by molecular beam epitaxy were analyzed using Kelvin probe force… (More)
- Ryota Takabe, Kaoru Toko, Kosuke Hara, Noritaka Usami, Takashi Suemasu
- 2015 IEEE 42nd Photovoltaic Specialist Conference…
- 2015
We grow BaSi<sub>2</sub> films on Ge(111) substrates using various templates. First, we form 30 nm BaGe<sub>2</sub> templates by deposition of Ba on hot Ge, followed by molecular beam epitaxy (MBE)… (More)