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2013 Fiscal Year Final Research Report

Development of the solar cells using the ferroelectric semiconductor heterointerface

Research Project

  • PDF
Project/Area Number 24760545
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Inorganic materials/Physical properties
Research InstitutionUniversity of Yamanashi

Principal Investigator

YANAGI Hiroshi  山梨大学, 医学工学総合研究部, 准教授 (30361794)

Project Period (FY) 2012-04-01 – 2014-03-31
Keywords太陽電池 / 強誘電体
Research Abstract

BiFeO3 epitaxial films were prepared by hydrothermal synthesis method on the SrTiO3 single crystalline substrates. The resistance of the BiFeO3 epitaxial films was too large to measure ultraviolet photoelectron spectroscopy for determining the band diagram (the energy positions of the conduction band minimum and the valence band maximum) and too small to polarize them. Then, polarized BaTiO3 was employed as the test sample for the confirmation of the band slope induced by the polarization: clear band slope was observed by XPS measurements with a low-energy electron flood gun. As a result, open-circuit voltage which is larger than the band gap energy can be expected in polarized ferroelectric solar cells.

  • Research Products

    (3 results)

All 2013 Other

All Presentation (2 results) Remarks (1 results)

  • [Presentation] 水熱合成法によるエピタキシャルBiFeO_3薄膜の作製とその電子状態2013

    • Author(s)
      堀内隆弘,和田智志,柳博
    • Organizer
      第29回日本セラミックス協会関東支部研究発表会
    • Place of Presentation
      埼玉大学
    • Year and Date
      20130911-12
  • [Presentation] CuCdVO_4の結晶構造解析と電子状態観察2013

    • Author(s)
      井口雄喜,柳博
    • Organizer
      第29回日本セラミックス協会関東支部研究発表会
    • Place of Presentation
      埼玉大学
    • Year and Date
      20130911-12
  • [Remarks]

    • URL

      http://www.chem.yamanashi.ac.jp/

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Published: 2015-06-25  

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