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首页> 外文期刊>Japanese journal of applied physics >Light trapping for silicon photovoltaic cells illuminated by solar-pumped lasers emitting at 1064 nm
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Light trapping for silicon photovoltaic cells illuminated by solar-pumped lasers emitting at 1064 nm

机译:硅光伏电池的光阱被发射出1064 nm的太阳泵浦激光照射

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摘要

We have demonstrated a significant light-trapping effect for a silicon photovoltaic cell using a bandpass filter on the front surface and a diffuse reflector on the back surface, which is coupled with a solar-pumped laser emitting at 1064 nm, as a new approach to highly efficient solar photovoltaics. We carried out Monte-Carlo simulation of the light-trapping process to consider the effects of realistic optical properties of the surface treatments, and clarified the requisites to remarkably improve the absorbance of the cell. A multilayer bandpass filter consisting of TiO2 and SiO2 was employed, in which the thickness of each layer was optimized. A Si surface roughened by acid etching and covered with a Ag layer realized sufficient diffuse reflection properties. The prototype for optical evaluations using a 45-mu m-thick Si wafer, which is extremely thin compared with conventional silicon solar cells, almost perfectly absorbed the monochromatic incident light even though the wavelength was very close to the absorption edge. (C) 2015 The Japan Society of Applied Physics
机译:我们已经展示了一种硅光伏电池的显着集光效果,该技术采用了前表面的带通滤光片和后表面的漫反射镜,并结合了以1064 nm发射的太阳能泵浦激光作为一种新的制造方法。高效的太阳能光伏发电。我们进行了光捕获过程的蒙特卡洛模拟,以考虑表面处理的实际光学特性的影响,并阐明了显着提高细胞吸收率的必要条件。使用了由TiO2和SiO2组成的多层带通滤光片,其中每一层的厚度都得到了优化。通过酸蚀刻而粗糙化并覆盖有Ag层的Si表面实现了足够的漫反射特性。使用45微米厚的Si晶片进行光学评估的原型,与传统的硅太阳能电池相比,它非常薄,即使波长非常接近吸收边缘,它也几乎可以完美吸收单色入射光。 (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8s1期|08KD13.1-08KD13.6|共6页
  • 作者

    Takeda Yasuhiko; Ito Tadashi;

  • 作者单位

    Toyota Cent Res & Dev Labs Inc, Nagakute, Aichi 4801192, Japan.;

    Toyota Cent Res & Dev Labs Inc, Nagakute, Aichi 4801192, Japan.;

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  • 正文语种 eng
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