Silicon Nanowire Array Solar Cell Prepared by Metal-Induced Electroless Etching with a Novel Processing Technology

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概要

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• We inexpensively fabricated vertically aligned Si nanowire solar cells using metal-induced electroless etching and a novel doping technique. Co-doping of boron and phosphorus was achieved using a spin-on-doping method for the simultaneous formation of a front-side emitter and a back surface field in a one-step thermal cycle. Nickel electroless deposition was also performed in order to form a continuous metal grid electrode on top of an array of vertically aligned Si nanowires. A highly dense array of Si nanowires with low reflectivity was obtained using Ag nanoparticles of optimal size (60–90 nm). We also obtained an open circuit voltage of 544 mV, a short circuit current of 14.68 mA/cm2, and a cell conversion efficiency of 5.25% at 1.5AM illumination. The improved photovoltaic performance was believed to be the result of the excellent optical absorption of the Si nanowires and the improved electrical properties of the electroless deposited electrode.

• 2010-04-25

著者

• Seo Hong-seok

  Department Of Materials And Chemical Engineering Hanyang University

• Han-Don Um

  Department of Bio-Nano Technology, Hanyang University, Ansan 426-791, Korea

• Um Han-Don

  Department of Chemical Engineering, Hanyang University, Ansan 426-791, Korea

• Jung-Ho Lee

  Department of Chemical Engineering, Hanyang University, Ansan 426-791, Korea

• Jung-Ho Lee

  Department of Materials and Chemical Engineering, Hanyang University, Ansan 426-791, Korea

• Jin-Young Jung

  Department of Bio-Nano Technology, Hanyang University, Ansan 426-791, Korea

• Kwang-Tae Park

  Department of Bio-Nano Technology, Hanyang University, Ansan 426-791, Korea

• S. A.

  Department of Materials and Chemical Engineering, Hanyang University, Ansan 426-791, Korea

• Jung Jin-Young

  Department of Bio-Nano Technology, Hanyang University, Ansan 426-791, Korea

• Sang-Won Jee

  Department of Materials and Chemical Engineering, Hanyang University, Ansan 426-791, Korea

• Sang-Won Jee

  Department of Chemical Engineering, Hanyang University, Ansan 426-791, Korea

• Um Han-Don

  Department of Bionanotechnology, Hanyang University, Ansan, Gyeonggi 426-791, Republic of Korea

関連論文

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• Silicon Nanowire Array Solar Cell Prepared by Metal-Induced Electroless Etching with a Novel Processing Technology
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