Cathodoluminescence of Cu(In,Ga)Se2 Thin Films Used in High-Efficiency Solar Cells

Manuel J. Romero, Kannan Ramanathan, Miguel A. Contreras, Mowafak M. Al-Jassim, Rommel Noufi, Peter Sheldon

Research output: Contribution to journalArticlepeer-review

85 Scopus Citations


The cathodoluminescence (CL) spectroscopy and spectrum imaging were used to analyze Cu(In,Ga)Se 2 thin films used in high-efficiency solar cells. The photon energy of the emission spectrum was consistent at grain boundaries with respect to the excitation density. The location of the excitation influenced the shift by decade of the emission spectrum. A model for radiative recombination to be applied to these chalcopyrite compounds was also described.

Original languageAmerican English
Pages (from-to)4770-4772
Number of pages3
JournalApplied Physics Letters
Issue number23
StatePublished - 8 Dec 2003

NREL Publication Number

  • NREL/JA-520-33541


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