豊橋技術科学大学

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Izaki, Masanobu

Affiliation Department of Mechanical Engineering
Title Professor
Fields of Research Thin film science and technology / Solid-state electrochemistry/Energy conversion
Degree Doctor of Engineering
Academic Societies The Electrochemical Society(USA) /american Chemical Society(ACS)/Japan Society of Applied Physics /The Electrochemical Society of Japan /
E-mail m-izaki@me
Please append ".tut.ac.jp" to the end of the address above.
Laboratory website URL http://www.tf.me.tut.ac.jp
Researcher information URL(researchmap) Researcher information

Research

水溶液中での電気化学反応を利用した薄膜形成技術(ソフト溶液プロセス)による、半導体ならびに強磁性体酸化物の直接形成と物性制御ならびに太陽電池などの半導体素子構築に関する研究を行っています。化学熱力学計算に基づく水溶液光・電気化学反応の設計,電気化学ヘテロエピタキシャル成長による高品質酸化物(ZnO,Cu2O,CuO)の形成、有機半導体の配列制御による物性制御、ナノ構造体構築と形状制御,不純物制御による物性制御による高機能化などの基礎的な研究に加え、新規な酸化物系太陽電池・光電極,酸化物半導体の相関物性制御による新機能発現、有機半導体の成長の科学,に取り組んでいます。現在、以下のような研究を行っています。
1.  水の中から酸化物半導体を創るー熱力学に立脚した溶液化学成膜プロセスの設計と実証
2.  原子や分子を綺麗に並べるーヘテロエピタキシャル成長による高品質ナノ構造体の構築と物性発現
3. エネルギーと電子を操るー光からの電気エネルギー・水素製造

Theme1:Preparation of metal oxide and metallic smart layers by electrochemical process designed using thermodynamics

Overview
Thermodynamic calculation of the solution chemical properties, and the CuO/Cu2O bilayer photocathode fabricated by the electrochemical process designed using thermodynamics

The direct preparation process of ZnO layer has been discovered at 1996, and the advantages of the solution chemical process and the thermodynamic design has been revealed by demonstrating the direct preparation of Fe3O4, Cu2O, CuO, CeO2, and Ag2O. And, the process is extending to fabricate directly the bilayers and nanostructures with excellent photoactivity.

Selected publications and works

伊﨑昌伸、他、日本金属学会誌, 57, 182(1993) : Ni-Al
M. Izaki, et al., Appl. Phys. Lett., 68,2439(1996).: ZnO
M. Izaki, et al., Met. Mater. Trans., A, 27A, 483(1996) : Fe-C
M. Izaki, Electrochem. Solid State Lett., 1, 215(1997).: In2O3
M. Izaki, et al., Advanced Materials, 13(2000), 142. : Fe3O4
M. Izaki, Electrodeposition of Iron and Iron Alloys, Modern Electroplating 4th edition(JOHN WILEY & SONS, 2000)
M. izaki, et al., J. Mater. Chem., 11, 1972(2001). : CeO2
M. Izaki, et al., J. Electrochemical. Soc., 152, C179(2005). : Cu2O
M. Izaki, Electrodeposition of Iron and Iron Alloys, Modern Electroplating 5th edition(JOHN WILEY & SONS, 2010)
M. Izaki, et al. J. Electrochemical. Soc., 158, D578(2011). : CuO
伊﨑昌伸、水溶液電気化学製膜法による酸化物半導体膜の形成と太陽電池への展開(技術情報協会、2014)
伊﨑昌伸、CERAMICS JAPAN, 51, 504(2016).
M. Izaki, J. Jpn Inst. Met. Mater., 84, 177(2020)
M. Izaki, et al., ACS OMEGA, 5, 683(2020). : CuO/Cu2O bilayers
T. Shinagawa, M. izaki, et al., ACS OMEGA, 6, 2312(2021)
M. Izaki, et al., J. Electrochem. Soc., 168, 112510(2021).
D. Katsuma, M. Izaki, et al., J. Electrochem. Soc., 169, 042501(2022).

Keywords

electrochemistry, thermodynamics, oxide, semiconductor

Theme2:Ordered arrangement of the atoms and molecules

Overview
Room temperature ultraviolet-light emitting ZnO vertical nanowire, and growth steps formed on the <001>-C8-BTBT layer

Fundamental studies on oxide photovoltaic devices with copper oxide (Cu2O & CuO)-light-absorbing layers and hybrid photovoltaic devices composed of oxide semiconductors and organic semiconductors such as C60 and phthalocyanine compounds are performed to open the door to high performance solar cells by using solution electrochemical process and vacuum processes including electron-beam and thermal evaporation and sputtering techniques under financial supports of JSPS, JST, and NEDO. Figure shows the change in surface potential of the surface for Ga:ZnO:Cu-phthalocyanine bulk heterojunction layer by irradiating light with photon-assisted kelvin force microscopy(PKFM).

M. Izaki, et al., J. Phys. D: Appl. Phys., 40(2007), 3326.
M. Izaki, et al., American Chemical Society, Appl. Mater. Interface, 4(2012), 3558.M. Izaki, et al.,American Chemical Society, Appl. Mater. Interface, 5(2013), 9386.
M. Izaki, et al., RSC Advance, 4(2014), 14956.

Selected publications and works

M. Izaki, et al., Advanced Materials, 15,2000(2003).
M. Kobayashi, M. Izaki, et al., Appl. Phys. Lett., 106, 081909(2015).
M. Izaki, et al., Phys. Status Solidi A, 214, 1600473(2017).
伊﨑昌伸、湖山貴之、他、構造体及び構造体の製造方法、特願2017-083466(2017).
A. M. Moh, M. Izaki, Phys. Status Solidi A, 215, 1700862(2018).A. M. Moh, M. Izaki, Phys. Status Solidi A, 215, 1700862(2018).
H. Ohara, S. Wakazuki, P. L. Khoo, M. Kobayashi, A. Nakanishi, M. Nakamura, S. Watase, J. Shinozaki, M. Izaki, J. Electrochem. Soc., 169(2022), 042507.

Keywords

ordered nanostructure, heteroepitaxial growth, ZnO, scintillator

Theme3:Energy conversion of sustainable solar energy

Overview
CuO-Cu2O bilayer and nano composite fabricated by electrochemical reactions, and the photovoltaic performance

Theoretical design and consideration of the solution electrochemical process based on thermochemistry are performed to develop the process for preparing smart oxide semiconductors from aqueous solutions. The calculation of potential-pH diagram and solubility curves is carried out for the process we use, and we have demonstrated the advantage of the thermochemistry simulation for the design of the CuO semiconductor preparation process. And, light-assisted electrochemical process for stacking the n-ZnO on p-Cu2O has been developed based on the chemistry of the semiconductor/solution interface as shown in figure.

M. Izaki, et al., Electrochem. Solid State Lett., 14, D30(2011).
B. M. Fariza, M. izaki, et al., Thin Solid Films, 520(2012), 2261.

Selected publications and works

(Metal oxide photovoltaic devices)
M. Izaki, et al., J. Physics D, 40,3326(2007). (Top1% paper in Physics)
M. izaki, et al., ACS Appl. Mater. Interface, 6, 13461(2014).
M. Izaki, et al., Japanese patent, 2017-54917(2017).
M. Izaki, et al., ACS Appl. Ener. Mater., 2, 4833(2019).
M. Izaki, et al., ACS OMEGA, 6, 27587(2021).

(Organic photovoltaic devices)
M. Izaki, et al., ACS Appl. Mater. Interface, 5, 9386(2013).
M. Izaki, et al., RSC Advance, 4, 14956(2014).
M. Hiramoto, M. izaki, et al., ACS Appl. Ener. Mater., 2, 2087(2019).

(Other)
伊﨑昌伸、無機太陽電池、新エネルギー最前線(化学同人, 2006)
伊﨑昌伸、Cu2O系太陽電池、化合物薄膜太陽電池の最新技術(シーエムシー出版、2007)
伊﨑昌伸、CBD方によるバッファ層の形成技術、化合物薄膜太陽電池の最新技術II(シーエムシー出版、2014)
伊﨑昌伸、エネルギーデバイス、3, 52(2016).
伊﨑昌伸、銅酸化物系太陽電池、次世代の太陽電池・太陽光発電(技術情報協会、2018)

Keywords

sustainable solar energy, photovoltaic device, hydrogen gas generation

Title of class

Introduction to mechanical engineering(B11530050),Physics III(B1013007b), Material science(B11620210),Fundamental Material Science(B11622010),Projective research(B11510080),Mterial processing technology(M21622030),Production enginnering(D311030030),Science and technology of thin films(M41630080)

Others (Awards, Committees, Board members)

著書:
伊﨑昌伸、分担執筆、レアメタル便覧(丸善, 2011).
伊﨑昌伸、分担執筆、化学便覧基礎編改訂6版(丸善, 2020)


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