• 
  Rudigier, E.; Luck, I.; Scheer, R.: Quality assessment of CuInS₂-based solar cells by Raman scattering. Applied Physics Letters 82 (2003), p. 4370-4372

10.1063/1.1582362

Abstract:
In this work the spectroscopic linewidth of the Raman A1-mode of CuInS2 thin films is investigated. A broadening for the A1-mode with an asymmetric slope towards larger wavenumbers is observed. The comparison with parameters of the solar cells formed out of these thin films reveal a direct correlation between the linewidth of the A1-mode and the solar cell data. A decrease of open circuit voltage and fill factor of the cells is found for linewidths larger than 3.6 cm-1. For linewidths smaller than 3.6 cm-1, a saturated behavior of the solar cell parameters is observed. This saturation indicates other origins of performance limitation to be present in CuInS2 based devices.