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Hiroshi Hamasaki - IEEE Xplore Author Profile

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Author details

Hiroshi Hamasaki

Publications

3

Citations

1

Publications by Year

20212024

Co-Authors:

Yuhei HayamizuYumi HayashiNaoki HiramatsuAtsunobu IsobayashiHiroko Miki

Show All Co-Authors (16)

Hiroshi Hamasaki

Affiliation

Corporate Research & Development Center

Toshiba Corporation

Kawasaki, Japan

Publication Topics

Graphene Field-effect Transistor,
Acid Strength,
Aptamer,
Atomic Force Microscopy,
Biosensor,
Capacitive Sensor,
Changes In Capacity,
Charge Neutrality Point,
Chemical Sensors,
Chemical Vapor Deposition,
Citrate Ions,
Citric Acid

Publications

3

Citations

1

Publications by Year

20212024

Co-Authors:

Yuhei Hayamizu
Yumi Hayashi
Naoki Hiramatsu
Atsunobu Isobayashi
Hiroko Miki

Show All Co-Authors (16)

Author's Published Works

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Showing 1-3 of 3 results

Conferences (3)

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Hiroshi Hamasaki(3)
Miyuki Tabata(2)
Atsunobu Isobayashi(2)
Hideyuki Tomizawa(2)
Yuji Miyahara(2)
Toshiba Corporation, 1 Komukai-Toshiba-cho, Saiwai-Ku, Kawasaki, Japan(1)
Corporate Research & Development Center, Toshiba Corporation, Kawasaki, Kanagawa, Japan(1)
Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-Ku, Tokyo, Japan(1)
Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-Ku, Tokyo, Japan(1)
Corporate Research & Development Center, Toshiba Corporation, Kawasaki, Japan(1)
2021 International Conference on Electronics Packaging (ICEP)(1)
2023 IEEE Nanotechnology Materials and Devices Conference (NMDC)(1)
2024 IEEE SENSORS(1)
IEEE(3)
Kobe, Japan(1)
Paestum, Italy(1)
Tokyo, Japan(1)
Graphene Field-effect Transistor(2)
Acid Strength(1)
Aptamer(1)
Atomic Force Microscopy(1)
Biosensor(1)

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Results

Investigation of Hydrogen Spatial Distribution During Smoldering Fire in Capacitive MEMS Hydrogen Sensor Using Pt Thin Film

Yumi Hayashi;Naoki Hiramatsu;Hiroshi Hamasaki;Hiroaki Yamazaki

2024 IEEE SENSORS

Year: 2024 | Conference Paper |

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This paper describes a capacitive MEMS hydrogen sensor that is the first to utilize the change in film stress due to metal oxide reduction. Pt thin film is used as a hydrogen-sensing film in which tensile stress increases when the Pt oxide of the film surface is reduced by hydrogen. Since oxidation of Pt in air and reduction of Pt oxide by hydrogen occur simultaneously and cancel each other out, a...Show More

Investigation of Hydrogen Spatial Distribution During Smoldering Fire in Capacitive MEMS Hydrogen Sensor Using Pt Thin Film

Yumi Hayashi;Naoki Hiramatsu;Hiroshi Hamasaki;Hiroaki Yamazaki

2024 IEEE SENSORS

Year: 2024 | Conference Paper |

Photo-Induced Fermi Level Modulation of Graphene FETs: Expression Mechanism and Potential as Chemical Sensors

Yoshiaki Sugizaki;Yasutaka Nishida;Akiko Yuzawa;Miyu Nagai;Hiroko Miki;Hiroshi Hamasaki;Kazunori Motai;Yuhei Hayamizu;Miyuki Tabata;Yuji Miyahara;Atsunobu Isobayashi;Hideki Shibata;Hideyuki Tomizawa

2023 IEEE Nanotechnology Materials and Devices Conference (NMDC)

Year: 2023 | Conference Paper |

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Graphene FETs immobilized with some anions show extremely large modulation of the Fermi level upon light irradiation. The mechanism of the modulation is suggested to be the charge transfer between graphene and the anion, which makes photogating effect resulting from capacitive coupling of electrons or holes injection in the anion. We also found that the photo-response could be utilized as a chemic...Show More

Photo-Induced Fermi Level Modulation of Graphene FETs: Expression Mechanism and Potential as Chemical Sensors

Yoshiaki Sugizaki;Yasutaka Nishida;Akiko Yuzawa;Miyu Nagai;Hiroko Miki;Hiroshi Hamasaki;Kazunori Motai;Yuhei Hayamizu;Miyuki Tabata;Yuji Miyahara;Atsunobu Isobayashi;Hideki Shibata;Hideyuki Tomizawa

2023 IEEE Nanotechnology Materials and Devices Conference (NMDC)

Year: 2023 | Conference Paper |

A high-sensitivity olfactory system with a graphene FET biosensor and a portable odorant capture module

Hideyuki Tomizawa;Kou Yamada;Hiroshi Hamasaki;Yoshiaki Sugizaki;Miyuki Tabata;Yuji Miyahara;Atsunobu Isobayashi

2021 International Conference on Electronics Packaging (ICEP)

Year: 2021 | Conference Paper |

Cited by: Papers (1)

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In this paper, we report the demonstration of odorant capture and detection with a high-sensitivity olfactory system having a membrane-type odorant capture module. We carried out the odorant capture experiment with limonene and skatole gases as representative odorants, and the captured concentration was 7.6 nM and 0.2 µM, respectively. Furthermore, we have demonstrated 10 nM sensitivity by the gra...Show More

A high-sensitivity olfactory system with a graphene FET biosensor and a portable odorant capture module

Hideyuki Tomizawa;Kou Yamada;Hiroshi Hamasaki;Yoshiaki Sugizaki;Miyuki Tabata;Yuji Miyahara;Atsunobu Isobayashi

2021 International Conference on Electronics Packaging (ICEP)

Year: 2021 | Conference Paper |

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