Sakama Hiroshi - My portal - researchmap

Profile Information

Affiliation: Professor, Faculty of Science and Technology, Department of Engineering and Applied Sciences, Sophia University

Degree: 工学士(東京大学)
工学修士(東京大学)
博士（工学）(東京大学)

Contact information: h-sakamasophia.ac.jp
Researcher number: 10242017
J-GLOBAL ID: 200901016096031949
researchmap Member ID: 1000012285

1999-1997 Reserach on surface at University of Tokyo
1997- Research on thinfilms at Sophia University

(Subject of research)
Study on Surface Structure
Crystal growth of thin films
Discovery of new fluorescent materials

Research Interests

9

Research Areas

5

Education

1

Apr, 1979 - Mar, 1983

Faculty of Engineering, The University of Tokyo

Awards

1

Mar, 2005

Journal of Surface Science and Nanotechnology 論文賞

Papers

53

Estimation of photocatalytic activity of TiO<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e346" altimg="si44.svg"><mml:msub><mml:mrow /><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math> in vacuum using a quartz crystal microbalance technique for space applications

Naoki Shimosako, Hiroshi Sakama, Tadayasu Dotani

Acta Astronautica, Sep, 2023
Long-term change of transmission spectra of quartz glass contaminated with oleamide in vacuum

Naoki Shimosako, Hiroshi Sakama, Tadayasu Dotani

Acta Astronautica, Nov, 2022
Basic photocatalytic activity of ZrO2 thin films fabricated by a sol-gel method under UV-C irradiation

Naoki Shimosako, Hiroshi Sakama

Thin Solid Films, 732 138786-138786, Aug, 2021
Quantum efficiency of photocatalytic activity by GaN films

N. Shimosako, H. Sakama

AIP Adv., 11(2) 025019-025019, Feb, 2021 Peer-reviewed
Influence of vacuum environment on photocatalytic degradation of methyl red by TiO2 thin film

Naoki Shimosako, Hiroshi Sakama

Acta Astronautica, 178 1693-1698, Oct 7, 2020 Peer-reviewed
Mass decrease in contaminants by photocatalytic decomposition of TiO2 in vacuum

Naoki Shimosako, Motohiro Kato, Hiroshi Sakama

Proceedings of SPIE, Systems Contamination: Prediction, Control, and Performance 2020, 11489 114890S1-114890S6, Aug 21, 2020 Peer-reviewed
Tolerance to Electron Beams of TiO2 Film Photocatalyst

N. Shimosako, K. Yoshino, K. Shimazaki, E. Miyazaki, H. Sakama

Thin Solid Films, 686 137421-1-137421-6, Sep 30, 2019 Peer-reviewed
Effects of vacuum on photocatalytic activity of TiO2

Shimosako Naoki, Egashira Toshiki, K. Yoshino, Shimazaki Kazunori, Miyazaki Eiji, Sakama Hiroshi

Proceedings of SPIE, Systems Contamination: Prediction, Control, and Performance 2018, 10748 1074810-1-1074810-8, Sep 1, 2018 Peer-reviewed
Effects of atomic oxygen on titanium dioxide thin film

Naoki Shimosako, Yukihiro Hara, Kazunori Shimazaki, Eiji Miyazaki, Hiroshi Sakama

Acta Astronautica, 146 1-6, May 1, 2018 Peer-reviewed
Influence of electronic structure on visible light photocatalytic activity of nitrogen-doped TiO2

Daigo Kusano, Masato Emori, Hiroshi Sakama

RSC ADVANCES, 7(4) 1887-1898, 2017 Peer-reviewed
What Determines the Lifetime of Photoexcited Carriers on TiO2 Surfaces?

Kenichi Ozawa, Susumu Yamamoto, Ryu Yukawa, Roya Liu, Masato Emori, Koki Inoue, Taku Higuchi, Hiroshi Sakama, Kazuhiko Mase, Iwao Matsuda

JOURNAL OF PHYSICAL CHEMISTRY C, 120(51) 29283-29289, Dec, 2016 Peer-reviewed
Decomposition of Dioctyl phthalate (DOP) using Titanium Dioxide Photocatalyst in a Vacuum for Contamination Removal of Spacecraft

下迫直樹, 島﨑一紀, 宮崎英治, 坂間弘

Proceedings of the SICE Annual Conference 2016, 2016 20-23, Sep 1, 2016 Peer-reviewed
Capturing transiently charged states at the C-60/TiO2(110) interface by time-resolved soft X-ray photoelectron spectroscopy

Kenichi Ozawa, Susumu Yamamoto, Ryu Yukawa, Kazuma Akikubo, Masato Emori, Hiroshi Sakama, Iwao Matsuda

ORGANIC ELECTRONICS, 31 98-103, Apr, 2016 Peer-reviewed
Decomposition of dioctyl phthalate (DOP) using titanium dioxide photocatalyst in a vacuum

N. Shimosako, K. Shimazaki, E. Miyazaki, H. Sakama

SYSTEMS CONTAMINATION: PREDICTION, CONTROL, AND PERFORMANCE 2016, 9952 99520O-1-99520O-8, 2016 Peer-reviewed
Photoexcited carrier behaviour at the fullerene/titania interface studied by time-resolved photoelectron spectroscopy

Ozawa Kenichi, Emori Masato, Yukawa Ryu, Akikubo Kazuma, Sakama Hiroshi, Yamamoto Susumu, Matsuda Iwao

Abstract of annual meeting of the Surface Science of Japan, 35 88-88, 2015
Development of the titanium dioxide photocatalyst for the purpose of the decomposition of the molecular contaminations on spacecrafts

Shimosako Naoki, Sakama Hiroshi

Abstract of annual meeting of the Surface Science of Japan, 35 231-231, 2015
Electron-hole recombination on ZnO(0001) single-crystal surface studied by time-resolved soft X-ray photoelectron spectroscopy

R. Yukawa, S. Yamamoto, K. Ozawa, M. Emori, M. Ogawa, Sh Yamamoto, K. Fujikawa, R. Hobara, S. Kitagawa, H. Daimon …

APPLIED PHYSICS LETTERS, 105(15) 151602-1-151602-4, Oct, 2014 Peer-reviewed
Polarization-dependent ARPES measurement for valence band of anatase TiO2

Masato Emori, Akiko Sakino, Kenichi Ozawa, Hiroshi Sakama

SOLID STATE COMMUNICATIONS, 188 15-18, Jun, 2014 Peer-reviewed
Shockley surface state on alpha-brass(111) and its response to oxygen adsorption

Kenichi Ozawa, Yuhei Mimori, Hiroo Kato, Masato Emori, Hiroshi Sakama, Saori Imanishi, Kazuyuki Edamoto, Kazuhiko Mase

SURFACE SCIENCE, 623 6-12, May, 2014 Peer-reviewed
Electron-Hole Recombination Time at TiO2 Single-Crystal Surfaces : Infuluence of Surface Band Bending

Kenichi Ozawa, Masato Emori Susumu, Yamamoto Ryu Yukawa, Shingo Yamamoto Rei Hobara, Kazushi Fujikawa, Hiroshi Sakama, Iwao Matsuda

The journal of physical chemistry letters,, 5(11) 1953-1957, May, 2014 Peer-reviewed

More

Misc.

20

Evaluation of Photocatalytic Activity of ZrO₂ Thin Film in Vacuum for Spacecraft Application

下迫直樹, KNUTSSON Josefine, 坂間弘

宇宙科学技術連合講演会講演集(CD-ROM), 65th, 2021
TiO₂薄膜の電子線照射に対する耐性

吉野光祐, 下迫直樹, 島崎一紀, 宮崎英治, 坂間弘

応用物理学会秋季学術講演会講演予稿集(CD-ROM), 79th, 2018
Surface Photovoltage Effect and Photoexcited Carrier Dynamics in Space Charge Layer on TiO₂ Surfaces

Ozawa Kenichi, Yamamoto Susumu, Yukawa Ryu, Liu Roya, Emori Masato, Inoue Koki, Higuchi Taku, Sakama Hiroshi, Mase Kazuhiko, Matsuda Iwao

Meeting Abstracts of the Physical Society of Japan, 72.1 2599-2599, 2017
原子層堆積法によるBiFeO₃薄膜の成長

平林三寛, 中村葵, ZHA S., 下迫直樹, 坂間弘

応用物理学会春季学術講演会講演予稿集(CD-ROM), 64th, 2017
TiO₂薄膜における光励起キャリアダイナミクスの結晶構造依存性

佐藤夏子, 井口歩武, 竹澤宏紀, 荒井悠里, 下迫直樹, 坂間弘, 江馬一弘, 欅田英之

応用物理学会春季学術講演会講演予稿集(CD-ROM), 64th, 2017
Decomposition of Contamination Model Materials by Titanium Dioxide Photocatalyst

60 3p, Sep 6, 2016
19pBP-9 Lifetime of Photoexcited Carriers on Rutile TiO_2 Surfaces : Dependence on Surface Orientation

Ozawa K., Yamamoto S., Inoue K., Higuchi T., Sakama H., Liu R.-Y., Matsuda I., Mase K.

Meeting Abstracts of the Physical Society of Japan, 71.1 1473, 2016
Rutile-TiO₂単結晶光生成キャリアダイナミクスにおける結晶軸依存性

佐藤夏子, 五十嵐樹莉, 井口歩武, 井出寛子, 下迫直樹, 坂間弘, 江馬一弘, 欅田英之

応用物理学会春季学術講演会講演予稿集(CD-ROM), 63rd, 2016
原子層堆積法による酸化ビスマスの成長

平林三寛, 田中優, 小松周平, 坂間弘

応用物理学会春季学術講演会講演予稿集(CD-ROM), 63rd, 2016
宇宙機の汚染物質除去を目的とした二酸化チタン光触媒による真空環境における汚染物質分解

下迫直樹, 島崎一紀, 宮崎英治, 坂間弘

応用物理学会秋季学術講演会講演予稿集(CD-ROM), 77th, 2016
Mo-NドープアナターゼTiO₂(001)単結晶薄膜の作製と電子状態

樋口拓, 井上剛貴, 中部邦章, 江森万里, 坂間弘

応用物理学会秋季学術講演会講演予稿集(CD-ROM), 76th, 2015
7aAJ-5 Recombination time of photoexcited carriers on single crystal TiO_2 surfaces

Ozawa Kenichi, Emori Masato, Yamamoto Susumu, Yukawa Ryu, Yamamoto Shingo, Hobara Rei, Fujikawa Kazushi, Sakama Hiroshi, Matsuda Iwao

Meeting abstracts of the Physical Society of Japan, 69(2) 501-501, Aug 22, 2014
原子層成長法による酸化鉄の成長

田中優, 田沼格, 坂間弘

応用物理学会春季学術講演会講演予稿集(CD-ROM), 61st, 2014
Electronic Structure of Anatase (TiO_2) under UV radiation.

Tezuka Y., Emori M., Sakama H., Mikami M., Oura R., Sasaki Y., Nozawa S., Iwazumi T., Isozumi Y., Ishiwata Y. …

Meeting Abstracts of the Physical Society of Japan, 68 672-672, 2013
28pPSB-15 Electronic Structure Study of Anatase (TiO_2) by means of X-ray Raman Scattering Spectroscopy. II

Tezuka Y., Emori M., Sakama H., Jin S., Oura R., Sasaki Y., Nozawa S., Iwazumi T., Isozumi Y., Ishiwata Y. …

Meeting Abstracts of the Physical Society of Japan, 68 836-836, 2013
CドープTiO₂の作製

真野昌平, 江森万里, 草野大悟, 崎野亜紀子, 岩崎達也, 坂間弘

応用物理学会春季学術講演会講演予稿集(CD-ROM), 60th, 2013
18pPSB-6 Electronic Structure Study of Anatase (TiO_2) by means of X-ray Raman Scattering Spectroscopy

Tezuka Y., Sakama H., Jin S., Oura R., Sasaki Y., Nozawa S., Iwazumi T., Isozumi Y., Ozawa K., Emori M.

Meeting Abstracts of the Physical Society of Japan, 67 682-682, 2012
19pPSB-37 Optical properties of anatase TiO_2 film with controlled oxygen vacancies

Goto Masako, Iijima Kouji, Enomoto Shogo, Kunugita Hideyuki, Ema Kazuhiro, Tsukamoto Masanori, Ichikawa Noriya, Sakama Hiroshi

Meeting abstracts of the Physical Society of Japan, 62(1) 737-737, Feb 28, 2007
Low-Energy Electron Diffraction

SAKAMA Hiroshi, ICHIKAWA Noriya

50(8) 607-611, May 15, 2005
The Expansion of Surface Science

SAKAMA Hiroshi

23(7) 403-403, Jul 10, 2002

Books and Other Publications

2

ナノテクノロジーのための表面電子回折法

Apr 1, 2003
ナノテクノロジーのための表面電子回折法（表面分析技術選書）

坂間弘 (Role: Joint author)

丸善, 2003

Presentations

3

オレアミドに汚染された光学ガラスの透過率変化

下迫直樹, 坂間弘, 堂谷忠靖

第66回宇宙科学技術連合講演会, Nov 1, 2022
宇宙機コンタミネーションの分解を目的とした二酸化チタン光触媒の開発

下迫直樹, 坂間弘

第35回表面科学学術講演会, Dec 3, 2015, 日本表面科学会
分子状コンタミネーション除去を目的とした光触媒の開発

下迫直樹, 坂間弘

第59回宇宙科学技術連合講演会, Oct, 2015

Professional Memberships

3

Research Projects

6

Space application of GaN photocatalyst

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2021 - Mar, 2024
Growth of multiferroic superlattices using UV-assisted ALD

Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research, Grant-in-Aid for Challenging Exploratory Research, Japan Society for the Promotion of Science, Apr, 2014 - Mar, 2017

Sakama Hiroshi
Growth of RT multiferroic artificial superlattice using ALD

Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research, Grant-in-Aid for Challenging Exploratory Research, Japan Society for the Promotion of Science, 2011 - 2013

SAKAMA Hiroshi
分子の特性を最大に引き出すナノサイズ構造体がつくる場の研究

科学技術振興機構, 2005 - 2007

坂間弘
The development of spin-polarized scanning electron microscope

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A), Grant-in-Aid for Scientific Research (A), Japan Society for the Promotion of Science, 1996 - 1997

SAKAMOTO Hiroshi, KAWAZU Akira
The study of disordered phases on solid surfaces by diffuse low-energy electron diffraction

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, 1995 - 1996

SAKAMA Hiroshi, KAWAZU Akira

Industrial Property Rights

1

特許5564701号常温磁性強誘電性超格子およびその製造方法

坂間弘, 市川能也

Social Activities

4

日本表面科学会関東支部幹事

Other

Apr 1, 2015
応用物理学会薄膜表面分科会常任幹事

Other

Apr 1, 2013 - Mar 31, 2015
日本表面科学会協議員

Other

Apr 1, 2013
応用物理学会薄膜表面分科会幹事

Other

Apr 1, 1994

Other

4

（教育実績）電子メディアの活用

Apr, 2005

地球環境と科学技術Ⅰでパワーポイントで講義ノートを作り呈示した。
（教育実績）テキストの作成

Apr, 2000

基礎物理コースⅡでテキストを作った
(Teaching achievements)guidance in the method of writing reports

Apr, 1997
（免許・資格）第二種酸素欠乏危険作業主任者、特定化学物質等作業主任者