• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2015 Fiscal Year Annual Research Report

分子プレカーサー法による金属酸化物薄膜太陽電池の形成

Research Project

Project/Area Number 25410204
Research InstitutionKogakuin University

Principal Investigator

佐藤 光史  工学院大学, 公私立大学の部局等, 教授 (10154105)

Project Period (FY) 2013-04-01 – 2016-03-31
Keywords分子プレカーサー法 / Cu2O / TiO2 / 薄膜
Outline of Annual Research Achievements

高い導電性と適切な厚さをもつ緻密なCu2Oのp型半導体薄膜を,AlドープZnO(AZO)基板上,およびAZO基板上にn型半導体のチタニア(アナターゼ)薄膜上にそれぞれ形成し,酸化物からなるp-n接合型薄膜太陽電池の創製を試みた。薄膜形成のために,新たな分子プレカーサー溶液を開発し,化学的な形成を検討した。
調製した新規プレカーサー溶液をそれぞれのn型半導体膜上に塗布,熱処理し,Cu2O薄膜の形成を試みた。AZO基板上に直接形成した場合は,Cu2O単一相が得られなかった一方,アナターゼ膜上に形成した場合は,200 nm厚のCu2O単一相が得られた。このように,Cu2O薄膜形成は,下地層が組成に大きく影響することが明らかとなった。オージェ電子分光法で深さ方向に対する組成を分析した結果,AZO上にCu2Oを直接形成した場合は,ZnがCu2Oの表面層まで拡散するのに対し,アナターゼを下地層とする場合,同様な拡散は防止されることが明らかとなった。
形成した各積層膜の光照射下での電流-電圧特性を調べた。各積層膜は,太陽電池として動作し,AZOとCu2O膜の間にチタニア膜を形成したデバイスの変換効率は,AZO基板上に直接形成した膜に比べて約100倍高い0.001%を示した。以上のように,化学的湿式法の分子プレカーサー法は,200 nmの膜厚をもつ緻密なp型Cu2O薄膜の形成に有効だった。また,この薄膜とn型AZOまたはn型チタニアとのp-n接合により形成したデバイスは,太陽電池として動作した。チタニア相は,緻密で平滑なCu2O薄膜の形成や,金属イオンの相間拡散を防止するため,変換効率の向上に有効なことがわかった。

Remarks

所属異動のため、2016年度内にwebページを移行する予定です。

  • Research Products

    (14 results)

All 2016 2015 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 2 results) Presentation (9 results) (of which Int'l Joint Research: 9 results,  Invited: 4 results) Book (1 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Photovoltaic lithium-ion battery fabricated by molecular precursor method2016

    • Author(s)
      Hiroki Nagai, Tatsuya Suzuki, Yoshihisa Takahashi, Mitsunobu Sato
    • Journal Title

      Functional Materials Letters

      Volume: - Pages: -

    • DOI

      -

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Conductive and semi-transparent Cu thin film fabricated using molecular precursor solutions2015

    • Author(s)
      Hiroki Nagai, Shohei Mita, Ichiro Takano, Tohru Honda, Mitsunobu Sato
    • Journal Title

      Material Letters

      Volume: 141 Pages: 235-237

    • DOI

      10.1016/j.matlet.2014.11.056

    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Effects of active materials for the cathode of photovoltaic lithium-ion battery2015

    • Author(s)
      Hiroki Nagai, Yoshihisa Takahashi, Tatsuya Suzuki and Mitsunobu Sato
    • Organizer
      Energy Materials and Natotechnology meeting on photocatalysis
    • Place of Presentation
      Las Vegas
    • Year and Date
      2015-11-21 – 2015-11-24
    • Int'l Joint Research
  • [Presentation] A novel devices – Photovoltaic lithium ion battery -, Energy Materials and Natotechnology photocatalysis2015

    • Author(s)
      Mitsunobu Sato
    • Organizer
      Energy Materials and Natotechnology meeting on photocatalysis
    • Place of Presentation
      Las Vegas
    • Year and Date
      2015-11-21 – 2015-11-24
    • Int'l Joint Research / Invited
  • [Presentation] Molecular Precursor Method for Functional Thin Films - 20 Year's Challenges -2015

    • Author(s)
      Mitsunobu Sato
    • Organizer
      International Symposium on Advanced Technology
    • Place of Presentation
      Tokyo
    • Year and Date
      2015-10-31 – 2015-11-03
    • Int'l Joint Research / Invited
  • [Presentation] Fabrication of photovoltaic lithium-ion battery with various cathodes2015

    • Author(s)
      Yoshihisa Takahashi, Hiroki Nagai, Tatsuya Suzuki, Mitsunobu Sato
    • Organizer
      International Symposium on Advanced Technology
    • Place of Presentation
      Tokyo
    • Year and Date
      2015-10-31 – 2015-11-03
    • Int'l Joint Research
  • [Presentation] 20th Anniversary of Molecular Precusor Method2015

    • Author(s)
      Mitsunobu Sato
    • Organizer
      2015 INTERNATIONAL SYMPOSIUM ON NANO SCIENCE AND TECHNOLOGY
    • Place of Presentation
      Tainan
    • Year and Date
      2015-10-28 – 2015-10-30
    • Int'l Joint Research / Invited
  • [Presentation] Next-generation Devices Fabricated by the Molecular Precursor Method2015

    • Author(s)
      Mitsunobu Sato
    • Organizer
      The 22nd International SPACC Symposium (The Society of Pure and Applied Coordination Chemistry)
    • Place of Presentation
      Namibia
    • Year and Date
      2015-08-13 – 2015-08-17
    • Int'l Joint Research / Invited
  • [Presentation] Thin film fabrication of tandem-structured Cu and Titania by using molecular precursors2015

    • Author(s)
      Ryo Sano, Hiroki Nagai, Mitsunobu Sato
    • Organizer
      The 22nd International SPACC Symposium (The Society of Pure and Applied Coordination Chemistry)
    • Place of Presentation
      Namibia
    • Year and Date
      2015-08-13 – 2015-08-17
    • Int'l Joint Research
  • [Presentation] Fabrication of a p-type cuprous oxide thin film in air by the molecular precursor method2015

    • Author(s)
      Tatsuya Suzuki, Reiji Kobayashi, Hiroki Nagai, Tohru Honda, Mitsunobu Sato
    • Organizer
      The 22nd International SPACC Symposium (The Society of Pure and Applied Coordination Chemistry)
    • Place of Presentation
      Namibia
    • Year and Date
      2015-08-13 – 2015-08-17
    • Int'l Joint Research
  • [Presentation] Fabrication of Copper-doped Li4Ti5O12 Thin Films Using the Molecular Precursor Method2015

    • Author(s)
      Keisuke Honma, Hiroki Nagai, Binggong Yan, Tohru Honda, Ichiro Takano, Li Lu, Mitsunobu Sato
    • Organizer
      8th International Conference on Materials for Advanced Technologies
    • Place of Presentation
      Singapore
    • Year and Date
      2015-06-28 – 2015-07-03
    • Int'l Joint Research
  • [Book] Alkali-ion Batteries2016

    • Author(s)
      Hiroki Nagai, Mitsunobu Sato
    • Total Pages
      -
    • Publisher
      Intech
  • [Remarks] 配位工学研究室 - 工学院大学

    • URL

      http://www.ns.kogakuin.ac.jp/~wwf1017/

  • [Patent(Industrial Property Rights)] リチウムイオン二次電池2015

    • Inventor(s)
      佐藤光史,永井裕己
    • Industrial Property Rights Holder
      佐藤光史,永井裕己
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      110001519
    • Filing Date
      2015-10-02

URL: 

Published: 2017-01-06  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi