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New method for interface characterization in heterojunction solar cells based on diffusion capacitance measurements

  • A. S. Gudovskikh
  • , R. Chouffot
  • , J. P. Kleider
  • , N. A. Kaluzhniy
  • , V. M. Lantratov
  • , S. A. Mintairov
  • , J. Damon-Lacoste
  • , D. Eon
  • , P. Roca i Cabarrocas
  • , P. J. Ribeyron
  • Institute of Bioorganic Chemistry
  • Centre national de la recherche scientifique
  • Ioffe Institute
  • Institut polytechnique de Paris
  • Univ. Joseph Fourier-Grenoble 1

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

The capabilities of the new method based on the measurement of the diffusion capacitance are explored for the interface characterization of both anisotype and isotype heterojunctions. The influence of interface properties such as interface defect density and band discontinuities on diffusion capacitance is demonstrated. The value of the diffusion capacitance is shown to decrease upon interface defect recombination, whatever the type of the heterointerface (isotype or anisotype). Illustrations are given on two different types of high efficiency heterojunction solar cells, namely a-Si:H/c-Si and AlInP/GaInP solar cells.

Original languageEnglish
Pages (from-to)6786-6790
Number of pages5
JournalThin Solid Films
Volume516
Issue number20
DOIs
Publication statusPublished - 30 Aug 2008

Keywords

  • Capacitance
  • Heterojunctions
  • Interface
  • Solar cell

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