SAKOMURA Masaru

Affiliation

Faculty of Engineering, Division of Materials Science and Chemical Engineering

Job Title

Lecturer

Date of Birth

1964

Research Fields, Keywords

Photoinduced Electron Transfer, Artificial Photosynthesis, Molecular Device, Organic Ultra-thin Films

Mail Address

E-mail address

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Education 【 display / non-display

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    1990

    Tokyo Institute of Technology   Unfinished Course

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    1988

    Tokyo Institute of Technology   Graduated

Degree 【 display / non-display

  • Doctor of Engineering - Tokyo Institute of Technology

Campus Career 【 display / non-display

  • 2007.4
     
     

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Materials Science and Chemical Engineering   Lecturer  

  • 2001.4
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    2007.3

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Materials Science and Chemical Engineering   Research Assistant  

  • 1991.1
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    2001.3

    Duty   Yokohama National UniversitySchool of Engineering   Research Assistant  

  • 2018.4
     
     

    Concurrently   Yokohama National UniversityGraduate school of Engineering Science   Department of Chemistry, Chemical Engineering and Life Science   Lecturer  

  • 2011.4
     
     

    Concurrently   Yokohama National UniversityCollege of Engineering Science   Department of Chemistry, Chemical Engineering and Life Science   Lecturer  

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Academic Society Affiliations 【 display / non-display

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    日本化学会

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    高分子学会

Research Areas 【 display / non-display

  • Nanotechnology/Materials / Functional solid state chemistry

  • Nanotechnology/Materials / Fundamental physical chemistry  / Physical Chemistry

 

Research Career 【 display / non-display

  • Intramolecular Electron Transfer within a Model Compound of a Photosynthetic Reaction Center

    Project Year:

  • Study on Photofunctional Organic Ultra-thin Films

    Project Year:

  • Development of High-Efficiency Organic Thin Film Solar Cells

    Project Year:

  • Devices on Molecular and DNA Levels

    Grant-in-Aid for Scientific Research  

    Project Year:

Books 【 display / non-display

  • Encyclopedia of Electrochemistry

    Masamichi Fujihira, Masaru Sakomura( Role: Joint author)

    Wiley-VCH: Weinheim 

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    Language:English Book type:Scholarly book

Thesis for a degree 【 display / non-display

  • Study of photoelectric conversion by linear amphiphilic acceptor-sensitizer-donor triads

    2002.5

    Doctoral Thesis   Single Work  

  • Photoelectric conversion by a linear A-S-D triad monolayer

    1988.2

    Master Thesis   Single Work  

Papers 【 display / non-display

  • Effect of insertion of bathocuproine buffer layer at grating-structured cathode-organic-layer interface in bulk-heterojunction solar cells

    Masaru Sakomura, Yuya Yokokura, Yusuke Takagi, Kazuyoshi Ueda

    AIP Advances   10   015144-1 - 015144-8   2020.1  [Reviewed]

    DOI

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    Language:English   Publishing type:Research paper (scientific journal)   Joint Work  

    Other Link: https://aip.scitation.org/doi/10.1063/1.5129351

  • Chemically modified indium-tin-oxide electrodes for heterojunction organic solar cells based on differenet organic donors

    Ganbaatar Tumen-Ulzii, Delgerjargal Altantsetseg, Nyamjargal Ochirkhuyag, Delgertsetseg Byambasuren … Show more authors

    Chemistry Select   2 ( 15 )   4230 - 4233   2017.5  [Reviewed]

    DOI

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Wiley   Joint Work  

    In this study, we have examined the correlation between work function (WF) of indium-tin-oxide (ITO) and open-circuit voltage (Voc) of heterojunction photovoltaic (PV) cells based on different donor materials. Device configurations of ITO(modified)/SubPc/C60/BCP/Al and ITO(modified)/ZnPc/C60/BCP/Al were used in this study. Surface modification of ITO electrode through p-substituted benzenesulfonyl chlorides with different electron withdrawing terminal groups (C6H5-, Cl- and NO2-) has exploited to change the WF of ITO up to 5.28 eV with NO2-.Chemically modified ITOs and SubPc, ZnPc were used as anode electrode and donor materials, respectively. In order to find the correlation of Voc, two different donor materials with different HOMO levels were used in PV cells.When the SubPc was used as a donor in PV cells, the Voc was strongly dependent on WF of ITO. However, for ZnPc, the Voc was almost independent on WF of ITO due to its low HOMO level and formed ohmic contact at the interface between chemically modified ITO electrodes and ZnPc.

    Other Link: https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/slct.201700482

  • Detailed investigation of dependencies of photovoltaic performances of P3HT:PC61BM based solar cells on anodic work function modified by surface treatment of indium-tin-oxide electrode with benzenesulfonyl chloride derivatives

    Byambasuren Delgertsetseg, Namsrai Javkhlantugs, Erdenebileg Enkhtur, Yuya Yokokura, Takayuki Ooba, … Show more authors

    Organic Electronics   23   164 - 170   2015.4  [Reviewed]

    DOI Web of Science

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier B. V.   Joint Work  

    The photovoltaic (PV) characteristics of bulk-heterojunction (BHJ) solar cells based on poly(3-hexylthiophene) and [6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PC61BM) were improved using indium tin oxide (ITO) anode electrodes modified chemically with CH3O-,H-,Cl-,CF3-,and NO2-terminated benzenesulfonyl chlorides as a self-assembled monolayer(SAM).The ITO electrode surfaces were easily treated through the chemical modification of the reactive -SO2Cl binding group, and the work function(WF)of the modified ITO was effectively changed depending on the permanent dipole moments introduced in the para-position of benzenesulfonyl chloride. We examined the correlation between the ITO WFs corrected by the change in the contact potential difference and the calculated dipole moments of the SAM models. Moreover, we examined the PV characteristics of the P3HT:PC61BM based BHJ organic PV cells using the SAMs or poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)-treated ITOs with different WFs lying within ±0.2 eV from the highest occupied molecular orbital(HOMO)level of P3HT. We found that the enhancement effect of the SAMs on the power-conversion efficiency(ηP)reached a maximum with Cl(ηP=3.72%),and became larger than that of PEDOT:PSS (ηP = 3.62%).Two distinct Jsc dependencies, increasing and decreasing with the increasing WF of the anode ITO,were observed at higher and lower WFs than the HOMO level of the donor, respectively.Almost constant Voc values (around0.6V)were observed with different SAM-modified ITOs,which suggested that Fermi level pinning was achieved by aligning the anode Fermi level and positive polaronic level of the donor polymer.

  • Improved performances of ITO electrodes treated by molecular-self assembly

    Byambasuren Delgertsetseg, Khayankhyarvaa Sarangerel, Namsrai Javkhlantugs, Masaru Sakomura, Kazuyo … Show more authors

    Rev.Téc.Ing.Univ.Zulia   37 ( 3 )   35 - 40   2014.12  [Reviewed]

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    Language:English   Publishing type:Research paper (scientific journal)   Joint Work  

  • Improvement of open-circuit voltage in organic photovoltaic cells with chemically modified indium-tin oxide

    K. Sarangerel, B. Delgertsetseg, N. Javkhalantugs, M. Sakomura, C. Ganzorig

    World Journal of Nano Science and Engineering   3   113 - 120   2013.12  [Reviewed]

    DOI

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Scientific Research   Joint Work  

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Review Papers 【 display / non-display

  • Enhanced performance in organic photovoltaic cells with chemically modified indium-tin oxide anode electrode

    B. Delgertsetseg, K. Sarangerel, A. Delgerjargal, N. Javkhlantugs, C. Ganzorig, K. Ueda, M. Sakomura

    8th International Forum on Strategic Technology   2013.6  [Reviewed]  [Invited]

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    Language:English   Publishing type:Article, review, commentary, editorial, etc. (international conference proceedings)   Joint Work  

  • 有機薄膜太陽電池の高効率化

    藤平正道、迫村 勝

    学術月報   58 ( 7 )   542 - 546   2005.7

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Publisher:日本学術振興会   Joint Work  

  • 図解バイオ活用技術のすべて

    藤平正道教授(東京工業大学)

    工業調査会   206 - 211,226-230   2004.6

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Joint Work  

Grant-in-Aid for Scientific Research 【 display / non-display

  • 電荷輸送層を省いた積層構造による低コスト型ペロブスカイト太陽電池の創製

    Grant number:21K04684  2021.4 - 2024.3

    独立行政法人日本学術振興会  Grant-in-Aid for Scientific Research(C)

    Investigator(s):迫村 勝

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    Authorship:Principal investigator  Grant type:Competitive

Other external funds procured 【 display / non-display

  • DVD-Rを用いた新型太陽電池創り

    2020.4 - 2021.3

    Private Foundations  日本文具財団助成金

    Investigator(s):迫村 勝

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    Authorship:Principal investigator 

Presentations 【 display / non-display

  • LB法を用いたITO電極表面の自己組織化修飾とペロブスカイト型太陽電池への応用

    野村 将大,西堂 菜月,鈴木 健吾,迫村 勝

    第13回CSJ化学フェスタ2023  日本化学会

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    Event date: 2023.10

    Language:Japanese   Presentation type:Poster presentation  

    Venue:タワーホール船堀  

  • 斜め蒸着法での銀電極形成における自己陰影効果への有機バッファー層挿入による影響

    木川 藍子,黒木 皓太,迫村 勝

    第12回CSJ化学フェスタ2022  日本化学会

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    Event date: 2022.10

    Language:Japanese   Presentation type:Poster presentation  

    Venue:タワーホール船堀  

  • 自己組織化単分子膜修飾ITO電極上に形成したペロブスカイト膜の表面特性調査と太陽電池デバイス化の検討

    森 友萌,野村 将大,富永 宇,迫村 勝

    第11回CSJ化学フェスタ2021  日本化学会

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    Event date: 2021.10

    Language:Japanese   Presentation type:Poster presentation  

    Venue:リモート開催  

  • フッ化炭素系有機薄膜表面のフォースカーブ解析

    池田 航大,迫村 勝

    第11回CSJ化学フェスタ2021  日本化学会

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    Event date: 2021.10

    Language:Japanese   Presentation type:Poster presentation  

    Venue:リモート開催  

  • DFT計算によるLB膜修飾SnO2電極基板の電子特性の研究

    小宮 大樹,迫村 勝

    第10回CSJ化学フェスタ2020 

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    Event date: 2020.10

    Language:Japanese   Presentation type:Poster presentation  

    Venue:リモート開催  

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Preferred joint research theme 【 display / non-display

  • Study on Organic Solar Cells

  • Study on Molecular Solar Cells

 

Charge of on-campus class subject 【 display / non-display

  • 2024   Solution Theories

    Graduate school of Engineering Science

Charge of off-campus class subject 【 display / non-display

  • 溶液化学

    2022.9 - 2023.3 Institution:青山学院大学

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    Level:Undergraduate (specialized) 

 

Committee Memberships 【 display / non-display

  • 日本化学会関東支部

    2021.4 - 2023.3  代表正会員

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    Committee type:Academic society 

  • 日本化学会関東支部

    2019.4 - 2021.3  代表正会員

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    Committee type:Academic society