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    • 7. 发明申请
    • PHOTOVOLTAIC CELLS AND SOLAR CELL USING THE SAME
    • 光电池和使用它的太阳能电池
    • US20090183765A1
    • 2009-07-23
    • US12089410
    • 2006-10-04
    • Yasuo ChibaLiyuan HanNaoki KoideMasami Kido
    • Yasuo ChibaLiyuan HanNaoki KoideMasami Kido
    • H01L31/02
    • H01G9/2031H01G9/2059Y02E10/542
    • A photovoltaic cell having improved photoelectric conversion efficiency is provided. Furthermore, a solar cell employing such a photovoltaic cell is also provided. The photovoltaic cell is composed of a photoelectric conversion layer (31) made of a porous semiconductor layer (11) that has adsorbed a dye, a carrier transporting layer (4), and a pair of electrodes (3, 7). A total haze ratio of the porous semiconductor layer (11) of the photoelectric conversion layer (31) in a near infrared region is 60% or more to 95% or less. Especially when the porous semiconductor layer (11) is made of a plurality of layers, the haze ratio of the porous semiconductor layer in the near infrared region that is furthest from a light incident side is preferably 60% or more to 95% or less.
    • 提供了具有改善的光电转换效率的光伏电池。 此外,还提供了使用这种光伏电池的太阳能电池。 光电池由吸附了染料的多孔半导体层(11),载流子传输层(4)和一对电极(3,7)构成的光电转换层31构成。 近红外区域中的光电转换层(31)的多孔半导体层(11)的总雾度比为60%以上且在95%以下。 特别是多孔半导体层11由多层构成时,最靠近光入射侧的近红外区域的多孔半导体层的雾度比优选为60%以上且95%以下。