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The Role of Nanotubes in Carbon Nanotube-Silicon Solar Cells

机译:纳米管在碳纳米管-硅太阳能电池中的作用

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摘要

The mechanism of action of nanotube-silicon heterojunction solar cells is under discussion with literature reports suggesting either p-n or Schottky junction characteristics. The crux of the issue is whether the nanotubes contribute to the observed photocurrent or not. In order to further understand the mechanism of action of these solar cells, devices were fabricated using nanotubes sorted by (n,m) species, so that the excitonic transition is well defined and is outside the range of absorption of silicon and such that any contribution to the photocurrent from the nanotubes should be easily resolved from that of the silicon by analysis of the photocurrent spectrum. The devices exhibited the photocurrent spectra of silicon only, indicating that the nanotubes do not contribute to the photocurrent. However, by changing the back contact electrode material, results were obtained that appear to show such a contribution.
机译:纳米管-硅异质结太阳能电池的作用机理正在讨论之中,有文献报道表明p-n或肖特基结特性。问题的关键是纳米管是否有助于观察到的光电流。为了进一步了解这些太阳能电池的作用机理,使用了按(n,m)物质分类的纳米管制造了器件,从而使激子跃迁得到了很好的定义,并且超出了硅的吸收范围,因此任何贡献通过分析光电流谱,可以容易地将碳纳米管的光电流与硅的光电流解析开。这些器件仅表现出硅的光电流谱,表明纳米管对光电流没有贡献。然而,通过改变背接触电极材料,获得的结果似乎显示出这种贡献。

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  • 来源
    《Advanced energy materials》 |2013年第8期|1091-1097|共7页
  • 作者单位

    Centre for Nanoscale Science and Technology Flinders University Bedford Park, SA 5042, Australia;

    Institute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) 76021 Karlsruhe, Germany;

    Institute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) 76021 Karlsruhe, Germany;

    Light Tecnnology Institute (LTI) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe, Germany;

    Light Tecnnology Institute (LTI) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe, Germany;

    Light Tecnnology Institute (LTI) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe, Germany,DFG Centre for Functional Nanostructures (CFN) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe, Germany;

    Centre for Nanoscale Science and Technology Flinders University Bedford Park, SA 5042, Australia;

    Light Tecnnology Institute (LTI) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe, Germany,DFG Centre for Functional Nanostructures (CFN) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe, Germany;

    Institute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) 76021 Karlsruhe, Germany;

    Institute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) 76021 Karlsruhe, Germany,DFG Centre for Functional Nanostructures (CFN) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe, Germany,Institute of Materials Science Technische Universitaet Darmstadt 64287 Darmstadt, Germany;

    Institute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) 76021 Karlsruhe, Germany;

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