The 63rd JSAP Spring Meeting, 2016

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Oral presentation

6 Thin Films and Surfaces » 6.1 Ferroelectric thin films

[21p-W641-1~19] 6.1 Ferroelectric thin films

Mon. Mar 21, 2016 1:45 PM - 7:00 PM W641 (W6)

Hironori Fujisawa(Univ. of Hyogo), Takeshi Yoshimura(Osaka Pref. Univ.), Shintaro Yasui(Titech)

5:30 PM - 5:45 PM

△ [21p-W641-14] Visible-Light Photovoltaic Effect in BiFeO3-based Ferroelectric Thin Films –Materials Design based on Gap-State Engineering–

〇(DC)Hiroki Matsuo1, Yuuki Kitanaka1, Yuuji Noguchi1, Masaru Miyayama1 (1.The Univ. of Tokyo)

Keywords:ferroelectrics,photovoltaic,thin film

In this presentation, we introduce a material design based on gap-state engineering for an enhancement of visible-light photovoltaic (PV) properties in BiFeO3 (BFO) ferroelectric thin films prepared by a pulsed-laser deposition method. We report an enhancement of the PV effect of the BFO films by Mn-doping. In addition, mechanisms of the improvement in the PV effect will be discussed based on a PV tensor analysis and electronic structure calculations.