Get access
Advertisement

Improving spectral response of monocrystalline silicon photovoltaic modules using high efficient luminescent down-shifting Eu3+ complexes

Authors

  • Jian Liu,

    1. State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, China
    2. Academician Work Station of Changzhou Trina Solar Energy Co., Ltd., Changzhou, Jiangsu Province, China
    Search for more papers by this author
  • Kai Wang,

    1. State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, China
    Search for more papers by this author
  • Wei Zheng,

    1. State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, China
    Search for more papers by this author
  • Wei Huang,

    1. State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, China
    Search for more papers by this author
  • Cheng-Hui Li,

    Corresponding author
    1. Academician Work Station of Changzhou Trina Solar Energy Co., Ltd., Changzhou, Jiangsu Province, China
    • State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, China
    Search for more papers by this author
  • Xiao-Zeng You

    Corresponding author
    1. Academician Work Station of Changzhou Trina Solar Energy Co., Ltd., Changzhou, Jiangsu Province, China
    • State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing, China
    Search for more papers by this author

Correspondence: Cheng-Hui Li and Xiao-Zeng You, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China.

E-mail: chli@nju.edu.cn; youxz@nju.edu.cn

ABSTRACT

One way to improve the spectral response of solar cells in the ultraviolet (UV) region is to convert high energy photons into lower energy ones via luminescent down-shifting (LDS) technique. Eu3+ complexes are excellent LDS species because of their high luminescence quantum efficiency and large Stokes-shift. In this paper, we aim to optimize the LDS property of Eu3+ complexes for monocrystalline silicon (c-Si) photovoltaic (PV) modules by chemical modification of the UV absorbing antenna ligands. Our results show that the LDS performances of Eu3+ complexes are strongly dependent on their absorption and emission properties. By carefully modifying the absorption and emission features, the LDS performances of Eu3+ complexes can be significantly improved. The spectroscopic features of the Eu3+ complex with a bispinene-containing bipyridyl ligand match well with the requirement of ideal LDS species for the c-Si PV module. Simple coating of polyvinyl acetate film doped with this complex onto the surface of c-Si PV module leads to increase of the external quantum efficiency in the UV region and enhancement of the PV module efficiency η (from 16.05% to 16.37%). Copyright © 2012 John Wiley & Sons, Ltd.

Get access to the full text of this article

Ancillary