Solar Cell Architecture: Giant Efficiency Enhancement of GaAs Solar Cells with Graded Antireflection Layers Based on Syringelike ZnO Nanorod Arrays (Adv. Energy Mater. 4/2011)

Authors

  • Li-Ko Yeh,

    1. Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
    Current affiliation:
    1. These authors contributed equally to this work
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  • Kun-Yu Lai,

    1. Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
    Current affiliation:
    1. These authors contributed equally to this work
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  • Guan-Jhong Lin,

    1. Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
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  • Po-Han Fu,

    1. Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
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  • Hung-Chih Chang,

    1. Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
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  • Chin-An Lin,

    1. Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
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  • Jr-Hau He

    Corresponding author
    1. Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan
    • Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan.
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Abstract

original image

Architecture innovations are crucial for enhancing the efficiency of solar cells (SCs), which depends on the probability of an incident photon being absorbed. GaAs SCs employing syringe-like ZnO nanorods, providing a smooth index transition from air to the SC surface, show an efficiency boost of 32%. This light-harvesting nanostructure is compatible with existing technology and applicable for various SCs, report Jr-Hau He and co-workers.

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