Understanding CIGS device performances through photoreectance spectroscopy

Antonin Moreau*, David Fuertes-Marron, Irene Artacho, Ludovic Escoubas, Jean Jacques Simon, Carmen M. Ruiz, Veronica Bermudez

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Cu(In1-x,Gax)S2 was studied using photoreectance spectroscopy. In this study, efforts are devoted to optimizing PR set-up for measuring CIGS grown by electrodeposition: issues such as photoluminescence perturbation, high roughness and scattering are addressed. Dual frequency photoreectance, where both probe and pump beams are modulated, is proposed here to over come the poor signal to noise ratio. Considering the low electric field regime, material parameters are extracted by employing the third derivative functional form of dielectric functions to fit data. The reliability of the technique is finally tested by measuring PR spectra on a specific 15 × 15 cm2 wafer and explanations of PR line-shape evolution on this wafer are discussed.

Original languageEnglish
Title of host publicationThin Film Solar Technology IV
DOIs
Publication statusPublished - 2012
Externally publishedYes
EventThin Film Solar Technology IV - San Diego, CA, United States
Duration: 12 Aug 201313 Aug 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8470
ISSN (Print)0277-786X

Conference

ConferenceThin Film Solar Technology IV
Country/TerritoryUnited States
CitySan Diego, CA
Period12/08/1313/08/13

Keywords

  • CuInGaS
  • Dual frequency
  • Electrodeposition
  • Photoreectance
  • Solar cell

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