Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 6, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3080654
Keywords
Auger electron spectra; copper compounds; electrodeposition; indium compounds; Raman spectra; semiconductor growth; semiconductor thin films; solar cells; ternary semiconductors; X-ray diffraction
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Funding
- LARCIS [SES6-CT-2005-019757]
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This work reports the electrochemical synthesis and characterization of CuIn(S,Se)(2) layers with graded composition from a S-rich surface region toward a Se-rich back region. The process includes the single step electrodeposition of a CuInSe2 precursor followed by a sulfurization step. Cross-sectional Raman microprobe measurements have allowed to characterize the complex graded structure of the layers. These data have been correlated with in-depth Auger electron spectroscopy and x-ray diffraction. Preliminary simulations of solar cells with different kinds of absorbers corroborate the potential of these complex graded layers for the development of low cost high efficiency devices.
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