The University of New South Wales

Depletion region recombination in solar cells: When does m = 2

Authors

Keith R. McIntosh, Pietro P. Altermatt and Gernot Heiser

    School of Computer Science and Engineering
    UNSW,
    Sydney 2052, Australia

Abstract

This paper examines the ideality factore of depletion-region recombination mDR, with a particular empahsis on its maximum valua. Several theoretical midels of depletion-region recombination are discussed and it is shown that the models with more assumptions tend to overestimate mDR. Numerical simulations are then used to determine the maximum vlaue of mDR for both step-junction and diffuesd-junction solar cells for the case when the trap density is unifirmlih distributed across the delpetion region. The maximum value of mDR is found to increase with doping from 1.7 to 2 for step juctions; and to be approximately 1.8 for all practical doping levels of diffused junctions.

BibTeX Entry

  @inproceedings{McIntosh_AH_00,
    month            = may,
    booktitle        = {Proceedings of the 16th European Photovoltaic Solar Energy Conference},
    author           = {Keith R. McIntosh and Pietro P. Altermatt and Gernot Heiser},
    year             = {2000},
    address          = {Glasgow, UK},
    pages            = {251--254},
    title            = {Depletion Region Recombination in Solar Cells: When Does m = 2}
  }

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