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Ternary wurtzite-type narrow band gap oxide semiconductor; Fabrication of thin-films and application to thin-film solar cells

Research Project

Project/Area Number 26289239
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Inorganic materials/Physical properties
Research InstitutionTohoku University (2016)
Osaka University (2014-2015)

Principal Investigator

Omata Takahisa  東北大学, 多元物質科学研究所, 教授 (80267640)

Co-Investigator(Kenkyū-buntansha) 喜多 正雄  富山高等専門学校, その他部局等, 准教授 (00413758)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2016: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2015: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2014: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Keywords結晶成長 / 太陽電池 / セラミックス / 先端機能デバイス / 光物性
Outline of Final Research Achievements

We studied fabrication method of β-CuGaO2 thin-films. First, we fabricated β-NaGaO2 thin-films as precursor materials; then, the film was subjected to ion-exchange of Na+ ions in the precursor films with Cu+. We successfully fabricated β-NaGaO2 thin-films by magnetron sputtering using β-NaGaO2 as a target material. β-CuGaO2 thin-films that exhibits good surface morphology were fabricated by ion-exchange of Na+ ions in the precursor β-NaGaO2 thin-film with Cu+ ions in CuCl vapor. Although the preferential orientation of the β-NaGaO2 films could not be controlled by magnetron sputtering, it was successfully controlled using electron-beam evaporation and sapphire substrates with various crystal orientations. However, the composition of precursor β-NaGaO2 film fabricated by sputtering and evaporation methods exhibited Na-poor composition. We found CVD is the preferable method to fabricate high quality and stoichiometric β-NaGaO2 precursor films.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • 2014 Annual Research Report

Research Products

(45 results)

All 2017 2016 2015 2014

All Journal Article (9 results) (of which Peer Reviewed: 7 results,  Open Access: 2 results,  Acknowledgement Compliant: 6 results) Presentation (36 results) (of which Int'l Joint Research: 12 results,  Invited: 5 results)

  • [Journal Article] Multinary wurtzite-type oxide semiconductors: present status and perspectives2017

    • Author(s)
      I. Suzuki, T. Omata
    • Journal Title

      Semicond. Sci. Technol.

      Volume: 32

    • DOI

      10.1088/1361-6641/32/1/013007

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] First-Principles Study of CuGaO2 Polymorphs: Delafossite α-CuGaO2 and Wurtzite β-CuGaO22016

    • Author(s)
      Issei Suzuki, Hiraku Nagatani, Masao Kita, Yuki Iguchi, Chiyuki Sato, Hiroshi Yanagi, Naoki Ohashi, Takahisa Omata
    • Journal Title

      Inorg. Chem.

      Volume: 55 Pages: 7610-7616

    • DOI

      10.1021/acs.inorgchem.6b01012

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] High temperature phases with wurtzite-derived structure in Zn2LiGaO4-ZnO alloy system2016

    • Author(s)
      M. Kita, T. Fukada, S. Yamaguchi, T. Omata
    • Journal Title

      J Alloys Comp.

      Volume: 688 Pages: 69-76

    • DOI

      10.1016/j.jallcom.2016.06.249

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] First principles calculations of ternary wurtzite β-CuGaO22016

    • Author(s)
      Issei Suzuki, Hiraku Nagatani, Masao Kita, Yuki Iguchi, Chiyuki Sato, Hiroshi Yanagi, Naoki Ohashi, Takahisa Omata
    • Journal Title

      J. Appl. Phys.

      Volume: 119 Pages: 095701-095701

    • DOI

      10.1063/1.4942619

    • Related Report
      2016 Annual Research Report 2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 新しい酸化物エネルギー材料の設計とその合成プロセスの開発2016

    • Author(s)
      小俣孝久
    • Journal Title

      鉱山

      Volume: 69(10) Pages: 22-30

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Wurtzite-derived ternary I-III-O2 semiconductors2015

    • Author(s)
      T Omata, H Nagatani, I Suzuki and M Kita
    • Journal Title

      Sci. Technol. Adv. Mater.

      Volume: 16 Pages: 024902-024902

    • DOI

      10.1088/1468-6996/16/2/024902

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Structural and Thermal Properties of Ternary Narrow-Gap Oxide Semiconductor; Wurtzite-Derived β-CuGaO22015

    • Author(s)
      Hiraku Nagatani, Issei Suzuki, Masao Kita, Masahiko Tanaka, Yoshio Katsuya, Osami Sakata, Shogo Miyoshi, Shu Yamaguchi, and Takahisa Omata
    • Journal Title

      Inorg. Chem.

      Volume: 54 Pages: 1698-1704

    • DOI

      10.1021/ic502659e

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Structure of β-AgGaO2; ternary I-III-VI2 oxide semiconductor with a wurtzite-derived structure2015

    • Author(s)
      Hiraku Nagatani, Issei Suzuki, Masao Kita, MasahikoTanaka, Yoshio Katsuya, Osami Sakata, Takahisa Omata
    • Journal Title

      J. Solid State Chem.

      Volume: 222 Pages: 66-70

    • DOI

      10.1016/j.jssc.2014.11.012

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Ternary and Quaternary Wurtzite-type Oxide Semiconductors; New Materials and Their Properties2015

    • Author(s)
      T. Omata
    • Journal Title

      Proceedings of SPIE

      Volume: 9364

    • DOI

      10.1117/12.2175570

    • Related Report
      2014 Annual Research Report
    • Acknowledgement Compliant
  • [Presentation] 酸化物の形態・構造制御 -酸化亜鉛量子ドット,新しい酸化物半導体を中心に-2017

    • Author(s)
      小俣孝久
    • Organizer
      (公財)科学技術交流財団第3回「機能性酸化物膜の液相エピタキシャル結晶成長研究会」
    • Place of Presentation
      科学技術交流財団 研究交流センター・名古屋市
    • Year and Date
      2017-03-06
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Band Gap Engineering of Wurtzite β-CuGaO2 by Alloying with β-CuAlO2 and β-LiGaO2 and Their Electronic Structures2016

    • Author(s)
      T. Omata, H. Nagatani, Y. Mizuno, I. Suzuki, M. Kita, N. Ohashi
    • Organizer
      The 9th International Workshop on Zinc Oxide and Related Materials (IWZnO 2016)
    • Place of Presentation
      台北・台湾
    • Year and Date
      2016-10-30
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Control of Electrical Conductivity of Ternary Wurtzite β-AgGaO22016

    • Author(s)
      H. Nagatani, I. Suzuki, M. Kita, T. Omata
    • Organizer
      The 9th International Workshop on Zinc Oxide and Related Materials (IWZnO 2016)
    • Place of Presentation
      台北・台湾
    • Year and Date
      2016-10-30
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Flux growth of ternary wurtzite β-NaGaO2 and β-LiGaO2 single crystals2016

    • Author(s)
      A. Kakinuma, I. Suzuki, M. Ueda, T. Omata
    • Organizer
      The 9th International Workshop on Zinc Oxide and Related Materials (IWZnO 2016)
    • Place of Presentation
      台北・台湾
    • Year and Date
      2016-10-30
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] New quaternary narrow gap oxide semiconductor Cu2ZnGeO4 with a wurtzite-derived Structure2016

    • Author(s)
      M. Kita, I. Suzuki, H. Nagatani, Y. Mizuno, M. Inoue, T. Omata
    • Organizer
      The 9th International Workshop on Zinc Oxide and Related Materials (IWZnO 2016)
    • Place of Presentation
      台北・台湾
    • Year and Date
      2016-10-30
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Band Gap Engineering of Wurtzite-Type Narrow Band Gap Oxide Semiconductor β-CuGaO22016

    • Author(s)
      T. Omata, Y. Mizuno, H. Nagatani, I. Suzuki, M. Kita
    • Organizer
      Pacific Rim Meeting on Electrochemical and Solid-State Science 2016 (PRiME 2016)
    • Place of Presentation
      ホノルル・米国
    • Year and Date
      2016-10-02
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 新しいエネルギー材料の開発-全酸化物太陽電池材料,中温作動型燃料電池材料-2016

    • Author(s)
      小俣孝久
    • Organizer
      日本鉱業協会新材料部会研究会 平成 28 年度第2回講演会
    • Place of Presentation
      日本協業協会・東京都千代田区
    • Year and Date
      2016-09-09
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Ternary and Quaternary Wurtzite-type Oxide Semiconductors: β-CuGaO2 and Its Related Materials2016

    • Author(s)
      T. Omata, Y. Mizuno, I. Suzuki, H. Nagatani, Masao Kita
    • Organizer
      The 43rd International Symposium on Compound Semiconductors (ISCS 2016)
    • Place of Presentation
      富山国際会議場・富山市
    • Year and Date
      2016-06-30
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Fabrication of β-CuGaO2 thin films; An Oxide Thin-Film Solar Cell Absorber2015

    • Author(s)
      Issei Suzuki, Hiraku Nagatani, Masao Kita and Takahisa Omata
    • Organizer
      2015 MRS Fall Meeting & Exhibit
    • Place of Presentation
      ボストン(USA)
    • Year and Date
      2015-11-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of β-CuGaO2 Thin Films; An Oxide Thin-Film Solar Cell Absorber2015

    • Author(s)
      Issei Suzuki, Hiraku Nagatani, Masao Kita and Takahisa Omata
    • Organizer
      The 9th Symposium on Transparent Oxide and Related Materials for Electronics and Optics (TOEO-9)
    • Place of Presentation
      つくば国際会議場(茨城県つくば市)
    • Year and Date
      2015-10-19
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Band Gap Engineering of Wurtzite-type Narrow Band Gap Semiconductor β-CuGaO22015

    • Author(s)
      Yuki Mizuno, Hiraku Nagatani, Issei Suzuki, Masao Kita and Takahisa Omata
    • Organizer
      The 9th International Conference on the Science and Technology for Advanced Ceramics (STAC-9)
    • Place of Presentation
      つくば国際会議場(茨城県つくば市)
    • Year and Date
      2015-10-19
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Flux Growth of β-NaGaO2 Single Crystals and their Ion-Exchange to Fabricate β-CuGaO2 and β-AgGaO22015

    • Author(s)
      13.Ayako Kakinuma, Issei Suzuki, Masato Ueda and Takahisa Omata
    • Organizer
      The 9th International Conference on the Science and Technology for Advanced Ceramics (STAC-9)
    • Place of Presentation
      つくば国際会議場(茨城県つくば市)
    • Year and Date
      2015-10-19
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ウルツ鉱型酸化物半導体の物質開拓I-III-O2およびI2-II-IV-O4化合物2015

    • Author(s)
      小俣孝久
    • Organizer
      電気化学会 固体化学の新しい指針を探る研究会 第78回研究会
    • Place of Presentation
      大阪大学(大阪府吹田市)
    • Year and Date
      2015-10-02
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] ウルツ鉱型関連構造の四元系ナローギャップ酸化物半導体Cu2ZnGeO4の合成2015

    • Author(s)
      喜多正雄、鈴木一誓、長谷拓、水野裕貴、小俣孝久
    • Organizer
      日本セラミックス協会 第28回秋季シンポジウム
    • Place of Presentation
      富山大学(富山県富山市)
    • Year and Date
      2015-09-16
    • Related Report
      2015 Annual Research Report
  • [Presentation] ウルツ鉱型酸化物半導体β-CuGaO2, β-AgGaO2 への不純物ドーピング2015

    • Author(s)
      長谷拓、鈴木一誓、小俣孝久、喜多正雄
    • Organizer
      日本セラミックス協会 第28回秋季シンポジウム
    • Place of Presentation
      富山大学(富山県富山市)
    • Year and Date
      2015-09-16
    • Related Report
      2015 Annual Research Report
  • [Presentation] ウルツ鉱型ナローバンドギャップ半導体β-CuGaO2 のバンドエンジニアリング2015

    • Author(s)
      水野裕貴、長谷拓、鈴木一誓、喜多正雄、小俣孝久
    • Organizer
      日本セラミックス協会 第28回秋季シンポジウム
    • Place of Presentation
      富山大学(富山県富山市)
    • Year and Date
      2015-09-16
    • Related Report
      2015 Annual Research Report
  • [Presentation] Novel Ternary Wurtzite Semiconductor β-CuGaO22015

    • Author(s)
      Issei Suzuki, Hiraku Nagatani, Masao Kita, Hiroshi Yanagi, Naoki Ohashi and Takahisa Omata
    • Organizer
      17th International Conference on II-VI Compounds and Related Materials
    • Place of Presentation
      パリ(フランス)
    • Year and Date
      2015-09-13
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of β-CuGaO2 Thin Films2015

    • Author(s)
      Issei Suzuki, Hiraku Nagatani, Masao Kita and Takahisa Omata
    • Organizer
      17th International Conference on II-VI Compounds and Related Materials
    • Place of Presentation
      パリ(フランス)
    • Year and Date
      2015-09-13
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 酸化物薄膜太陽電池材料β-CuGaO2の薄膜作製2015

    • Author(s)
      鈴木一誓、長谷拓、喜多正雄、小俣孝久
    • Organizer
      資源素材学会 平成27年度資源・素材関係学協会合同秋季大会
    • Place of Presentation
      愛媛大学(愛媛県松山市)
    • Year and Date
      2015-09-08
    • Related Report
      2015 Annual Research Report
  • [Presentation] フラックス 法によるβ-NaGaO2単結晶の育成とそのイオン交換2015

    • Author(s)
      柿沼綾子、鈴木一誓、上田正人、小俣孝久
    • Organizer
      資源素材学会 平成27年度資源・素材関係学協会合同秋季大会
    • Place of Presentation
      愛媛大学(愛媛県松山市)
    • Year and Date
      2015-09-08
    • Related Report
      2015 Annual Research Report
  • [Presentation] ウルツ鉱型酸化物半導体β-CuGaO2, β-AgGaO2への不純物ドーピング2015

    • Author(s)
      長谷拓、鈴木一誓、喜多正雄、小俣孝久
    • Organizer
      資源素材学会 平成27年度資源・素材関係学協会合同秋季大会
    • Place of Presentation
      愛媛大学(愛媛県松山市)
    • Year and Date
      2015-09-08
    • Related Report
      2015 Annual Research Report
  • [Presentation] 新規酸化物半導体:ウルツ鉱型 β-CuGaO22015

    • Author(s)
      鈴木一誓、長谷拓、喜多正雄、井口雄喜、佐藤千友紀、柳博、大橋直樹、小俣孝久
    • Organizer
      日本セラミックス 協会2015年 年会
    • Place of Presentation
      岡山大学
    • Year and Date
      2015-03-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] ウルツ鉱型β-CuGaO2の第一原理計算2015

    • Author(s)
      鈴木一誓、長谷拓、喜多正雄、井口雄喜、佐藤千友紀、柳博、大橋直樹、小俣孝久
    • Organizer
      日本セラミックス 協会2015年 年会
    • Place of Presentation
      岡山大学
    • Year and Date
      2015-03-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] Ternary and Quaternary Wurtzite-type Oxide Semiconductors; New Materials and Their Properties2015

    • Author(s)
      T. Omata
    • Organizer
      SPIE: Photonics WEST2015; Oxidebased
    • Place of Presentation
      San Fransisco, USA
    • Year and Date
      2015-02-07 – 2015-02-12
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] CuAlO2との混晶化よるβ-CuGaO2のバンドギャップエンジニアリング2014

    • Author(s)
      水野 裕貴、長谷 拓、鈴木 一誓、小俣 孝久
    • Organizer
      資源素材学会関西支部 第11回・若手研究者・学生のための研究発表会
    • Place of Presentation
      京都大学
    • Year and Date
      2014-12-12
    • Related Report
      2014 Annual Research Report
  • [Presentation] Novel Ternary Wurtzite-type Semiconductor, β-CuGaO22014

    • Author(s)
      I. Suzuki, H. Nagatani, M. Kita, H. Yanagi, N. Ohashi and T. Omata
    • Organizer
      2014 MRS Fall Meeting & Exhibit
    • Place of Presentation
      Boston, USA
    • Year and Date
      2014-12-01 – 2014-12-05
    • Related Report
      2014 Annual Research Report
  • [Presentation] First Principle Calculations of Wurtzite β-CuGaO2 and β-AgGaO22014

    • Author(s)
      I. Suzuki, H. Nagatani, M. Kita, Y. Iguchi, C. Sato, H. Yanagi, N. Ohashi and T. Omata
    • Organizer
      2014 MRS Fall Meeting & Exhibit
    • Place of Presentation
      Boston, USA
    • Year and Date
      2014-12-01 – 2014-12-05
    • Related Report
      2014 Annual Research Report
  • [Presentation] First Principle Calculation of Electronic Band Structure of Wurtzite β-CuGaO2 and β-AgGaO22014

    • Author(s)
      I. Suzuki, H. Nagatani, M. Kita, Y. Iguchi, C. Sato, H. Yanagi, N. Ohashi and T. Omata.
    • Organizer
      8th International Workshop on Zinc Oxide and Related Materials
    • Place of Presentation
      Naigara Falls, Canada
    • Year and Date
      2014-09-07 – 2014-09-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] Band Gap Narrowing of ZnO by Alloying with β-AgGaO22014

    • Author(s)
      I. Suzuki, Y. Arima, M. Kita, T. Omata.
    • Organizer
      8th International Workshop on Zinc Oxide and Related Material
    • Place of Presentation
      Niagara Falls, Canada
    • Year and Date
      2014-09-07 – 2014-09-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] A New Ternary Oxide Semiconductor; Wurtzite CuGaO22014

    • Author(s)
      H. Nagatani, I. Suzuki, M. Kita, H. Yanagi, N. Ohashi and T. Omata
    • Organizer
      8th International Workshop on Zinc Oxide and Related Materials
    • Place of Presentation
      Niagara Falls, Canada
    • Year and Date
      2014-09-07 – 2014-09-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] Wurtzite I-III-O2 Ternary Oxide Semiconductors; New Mtaerials and Application2014

    • Author(s)
      T. Omata
    • Organizer
      8th International Workshop on Zinc Oxide and Related Material
    • Place of Presentation
      Niagara Falls, Canada
    • Year and Date
      2014-09-07 – 2014-09-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] ウルツ鉱型β-CuGaO2、β-AgGaO2の第一原理計算2014

    • Author(s)
      鈴木一誓、長谷拓、喜多正雄、井口雄喜、佐藤千友紀、柳博、大橋直樹、小俣孝久
    • Organizer
      第9回日本セラミックス協会関西支部学術講演会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2014-07-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] 直接遷移型ナローギャップ半導体;ウルツ鉱型β-CuGaO22014

    • Author(s)
      長谷拓、鈴木一誓、喜多正雄、柳博、田中雅彦、勝矢良雄、坂田修身、大橋直樹、小俣孝久
    • Organizer
      第9回日本セラミックス協会関西支部学術講演会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2014-07-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] CuAlO2との混晶化によるウルツ鉱型CuGaO2のバンドギャップエンジニアリング2014

    • Author(s)
      水野裕貴、長谷拓、鈴木一誓、喜多正雄、小俣孝久
    • Organizer
      第9回日本セラミックス協会関西支部学術講演会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2014-07-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] First Principle Calculations of Electronic Band Structures of Wurtzite β-CuGaO2 and β-AgGaO22014

    • Author(s)
      I. Suzuki, H. Nagatani, M. Kita, Y. Iguchi, C. Sato, H. Yanagi, N. Ohashi and T. Omata
    • Organizer
      The Eighth International Conference on the Science and Technology for Advanced Ceramics (STAC8)
    • Place of Presentation
      Yokohama, Japan
    • Year and Date
      2014-06-25 – 2014-06-27
    • Related Report
      2014 Annual Research Report
  • [Presentation] A New Direct and Narrow Band Gap Oxide Semiconductor; Wurtzite CuGaO22014

    • Author(s)
      H. Nagatani, I. Suzuki, M. Kita, H. Yanagi, N. Ohashi and T. Omata
    • Organizer
      The Eighth International Conference on the Science and Technology for Advanced Ceramics (STAC8)
    • Place of Presentation
      Yokohama, Japan
    • Year and Date
      2014-06-25 – 2014-06-27
    • Related Report
      2014 Annual Research Report

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Published: 2014-04-04   Modified: 2018-03-22  

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