Polarization-Sensitive Photodiodes Composed of Organic Multilayer Thin Films

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Author(s)

    • Tanaka Hideyuki
    • Department of Applied Science for Electronics and Materials, Graduate School of Engineering Sciences, Kyushu University
    • Yasuda Takeshi
    • Department of Applied Science for Electronics and Materials, Graduate School of Engineering Sciences, Kyushu University
    • Fujita Katsuhiko
    • Department of Applied Science for Electronics and Materials, Graduate School of Engineering Sciences, Kyushu University
    • Tsutsui Tetsuo
    • Department of Applied Science for Electronics and Materials, Graduate School of Engineering Sciences, Kyushu University

Abstract

Organic double-layer p–n junction photovoltaic devices using copper phthalocyanine (CuPc) as a p-type layer and 3,4,9,10-perylenetetracarboxylic-bis-benzimidazole (PTCBI) as an n-type layer were prepared. Molecular orientation was introduced in the PTCBI layer by the rubbing method, whereas no orientation was introduced in the CuPc layer. The power conversion efficiency of the device under white polarized light illumination was 0.1%. Photocurrent anisotropy was observed at the spectral region of 400 to 750 nm. The photocurrent ratio when the light was parallel and perpendicularly polarized against the molecular orientation axis was as high as 1.57 at 540 nm. The observed photocurrent anisotropy, however, was much smaller than that expected from the anisotropy of optical absorption of the aligned PTCBI layer, that is 4.76, because of filtering effects.

Journal

  • Japanese Journal of Applied Physics

    Japanese Journal of Applied Physics 44(12), 8676-8678, 2005

    The Japan Society of Applied Physics

Codes

  • NII Article ID (NAID)
    130004533002
  • Text Lang
    ENG
  • ISSN
    0021-4922
  • Data Source
    J-STAGE 
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