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首页> 外文期刊>Japanese journal of applied physics >Anomalous photovoltaic effects in Pt/single-domain-structured BiFeO3/Pt coplanar capacitors on SrTiO3 substrates
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Anomalous photovoltaic effects in Pt/single-domain-structured BiFeO3/Pt coplanar capacitors on SrTiO3 substrates

机译:SrTiO3基板上Pt /单畴结构BiFeO3 / Pt共面电容器中的光伏异常效应

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摘要

Recently, anomalous photovoltaic effects in BiFeO3 (BFO) thin films have attracted much attention. To investigate anomalous photovoltaic effects in BFO thin films, the photovoltaic properties of single-domain structured BFO should be determined. In this study, Pt/single-domain-structured BFO/Pt coplanar capacitors have been fabricated on SrTiO3 substrates, and the illuminated laser power density, BFO film thickness, measurement direction, polarization direction of light, and sample rotation angle dependences of short-circuit current and open-circuit voltage have been investigated. It is found that such anomalous photovoltaic effects are due to second-order nonlinear optical effects including carrier excitation. Moreover, the values of independent elements in the bulk photovoltaic tensor (beta), namely, beta(33), beta(31), beta(15), and beta(22) have been evaluated. (C) 2015 The Japan Society of Applied Physics
机译:最近,BiFeO3(BFO)薄膜中的异常光伏效应引起了人们的广泛关注。为了研究BFO薄膜中的异常光伏效应,应确定单域结构BFO的光伏特性。在这项研究中,已经在SrTiO3衬底上制造了Pt /单域结构BFO / Pt共面电容器,并且照明激光功率密度,BFO膜厚度,测量方向,光的偏振方向以及样品旋转角度对短时间的依赖性已经研究了电路电流和开路电压。发现这种异常的光伏效应是由于包括载流子激发的二阶非线性光学效应引起的。此外,已评估了整体光伏张量(beta)中独立元素的值,即beta(33),beta(31),beta(15)和beta(22)。 (C)2015年日本应用物理学会

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  • 来源
    《Japanese journal of applied physics》 |2015年第10s期|10NA16.1-10NA16.6|共6页
  • 作者单位

    Univ Hyogo, Grad Sch Engn, Dept Elect Engn & Comp Sci, Himeji, Hyogo 6712201, Japan;

    Univ Hyogo, Grad Sch Engn, Dept Elect Engn & Comp Sci, Himeji, Hyogo 6712201, Japan;

    Univ Hyogo, Grad Sch Engn, Dept Elect Engn & Comp Sci, Himeji, Hyogo 6712201, Japan;

    Univ Hyogo, Grad Sch Engn, Dept Elect Engn & Comp Sci, Himeji, Hyogo 6712201, Japan;

    Univ Hyogo, Grad Sch Engn, Dept Elect Engn & Comp Sci, Himeji, Hyogo 6712201, Japan;

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