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Preparation of ferroelectric ceramics in a film structure and their photovoltaic properties

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Abstract

This paper reports the formation of a new-layered film structure and the highly improved photovoltaic output of the lead lanthanum zirconate titanate (PLZT) employed. The new structural design is described using an upper top transparent indium tin oxide (ITO) electrode. The PLZT film structure exhibited V and μA output. The photovoltaic current of the PLZT film per unit width was more than 102 times larger than that of bulk PLZT, while the photovoltaic voltage per unit thickness in the layered film structure was almost the same as that in bulk ceramics and single crystals. These differences are due to the characteristics of the film structure and configuration of the electrode. The PLZT film also has the advantage of easily controllable parameters: film thickness, illuminated area, and illumination intensity. A simple model is used for the phenomenological explanation of the improved photovoltaic effect of the PLZT film.

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Acknowledgement

The authors express their thanks to Ms. K. Tanaka (AIST) for the sample preparation, and Ms. T. Imai (AIST) for manuscript preparation. We are also grateful to Dr. T. Eiju and Dr. K. Tanie (AIST) for their encouragement during this study. This study was supported in part by the Grant-in-Aid for Young Scientists, 14750044 (KAKENHI) program.

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Authors and Affiliations

  1. Institute of Mechanical System Engineering, National Institute of Advanced Industrial Science and Technology, 1-2 Namiki, Tsukuba, 305-8564, Ibaraki, Japan

    M. Ichiki & R. Maeda

  2. Intelligent System Institute, National Institute of Advanced Industrial Science and Technology, 1-2 Namiki, Tsukuba, 305-8564, Ibaraki, Japan

    Y. Morikawa

  3. School of Information Environment, Tokyo Denki University, 2-1200 Muzai-Gakuendai, Inzai, 270-1382, Chiba, Japan

    Y. Mabune & T. Nakada

  4. Institute for Structural and Engineering Materials, National Institute of Advanced Industrial Science and Technology, 807-1 Shuku-machi, Tosu, 841-0052, Saga, Japan

    K. Nonaka

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  1. M. Ichiki
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  2. Y. Morikawa
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  3. Y. Mabune
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  4. T. Nakada
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  5. K. Nonaka
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  6. R. Maeda
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Correspondence to M. Ichiki.

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Ichiki, M., Morikawa, Y., Mabune, Y. et al. Preparation of ferroelectric ceramics in a film structure and their photovoltaic properties. Microsyst Technol 12, 143–148 (2005). https://doi.org/10.1007/s00542-005-0020-z

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  • DOI: https://doi.org/10.1007/s00542-005-0020-z

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