Absorption coefficient of bulk and thin film Cu

Claudia Malerba, Francesco Biccari, Cristy Leonor Azanza Ricardo, Mirco D'Incau, Paolo Scardi, Alberto Mittiga

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The optical absorption coefficient of thin film and bulk Cu2O at room temperature is obtained from an accurate analysis of their transmittance and reflectance spectra. These absorption spectra are modeled, together with the low temperature data reported in the literature, using an analytical expression to assess and quantify the role of the different absorption mechanisms. The results suggest that direct forbidden transitions and indirect transitions play an almost equally relevant role. A table of the optical constants of Cu2O single crystal is given for reference. © 2011 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)2848 - 2854
Number of pages7
JournalSolar Energy Materials and Solar Cells
Issue number10
Publication statusPublished - Oct 2011


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films

Cite this

Malerba, C., Biccari, F., Leonor Azanza Ricardo, C., D'Incau, M., Scardi, P., & Mittiga, A. (2011). Absorption coefficient of bulk and thin film Cu. Solar Energy Materials and Solar Cells, 95(10), 2848 - 2854. https://doi.org/10.1016/j.solmat.2011.05.047