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The extraction of the surface recombination velocity of Si: P emitters using advanced silicon models

Authors

Pietro P. Altermatt, Jürgen O. Schumacher, Andres Cuevas, Stephen W. Glunz, Richard R. King, Gernot Heiser and Andreas Schenk

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

Abstract

The recombination velocity of minority carriers at the surface of phosphorus doped emitters is extracted from published measurements of the emitter saturation current by means of numerical simulations. In contrast to previous studies, Fermi-Dirac statistics and a quantum mechanically derived band gap narrowing model are used (instead of Boltzman statistics and empirical apparent BGN data). In this way, degeneracy effects are accounted for on a physical sounder basis, leading to consistency also at high dopant densities. Thes enables us to simulate emitters with dopant densities higher than 3×1019 cm-3, considerably more precisely than in the past.

BibTeX Entry

  @inproceedings{Altermatt_SCGKHS_00,
    author           = {Pietro P. Altermatt and J{\"u}rgen O. Schumacher and Andres Cuevas and Stephen W. Glunz and Richard
                        R. King and Gernot Heiser and Andreas Schenk},
    title            = {The extraction of the surface recombination velocity of {Si:P} emitters using advanced silicon
                        models},
    address          = {Glasgow, UK},
    month            = may,
    year             = {2000},
    booktitle        = {Proceedings of the 16th European Photovoltaic Solar Energy Conference},
    pages            = {102--105}
  }

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