Determination of material inhomogeneities in CuIn(Se,S)(2) solar cell materials by high resolution cathodoluminescence topography

Journal article
(Original article)


Publication Details

Author(s): Oehlschläger F, Müller J, Künecke U, Hoelzing A, Schurr R, Hock R, Wellmann P
Journal: Energy Procedia
Publication year: 2010
Volume: 2
Journal issue: 1
Conference Proceedings Title: Energy Procedia 2 (2010)
Pages range: 183-188
ISSN: 1876-6102
Language: English


Abstract


CIS based polycrystalline semiconductors are used for thin film solar cells in laboratory and industry. Nevertheless, even for highly efficient absorbers from different growth techniques, these films are reported to contain inhomogeneities from nanometer to millimeter scale. In this paper we have analyzed inhomogeneities on a sub-mu m scale of CuIn(Se,S)(2) solar cell absorber materials processed by annealing of elemental layer precursors using high spatial resolution cathodoluminescence mapping. The measurements were carried out in a scanning electron microscope which has cathodoluminescence (CL) and energy dispersive x-ray fluorescence (EDX) capabilities to study materials composition. Cathodoluminescence from CuIn(Se,S)(2) at energies around 0.9 eV to 1.2 eV was detected by a spectrometer with a cooled InGaAs photo diode array. For better luminescence signals, the samples were cooled down to 80K (liquid nitrogen). From the energetic position of the cathodoluminescence peaks we have deduced the varying CuIn(Se,S)(2) materials composition. EDX measurements were carried out to verify the CL. (C) 2010 Published by Elsevier Ltd


FAU Authors / FAU Editors

Künecke, Ulrike Dr.-Ing.
Professur für Werkstoffwissenschaften (Werkstoffe der Elektrotechnik)
Müller, Julian Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)
Oehlschläger, Felix
Institute Materials for Electronics and Energy Technology (i-MEET)
Wellmann, Peter Prof. Dr.-Ing.
Professur für Werkstoffwissenschaften (Werkstoffe der Elektrotechnik)


Additional Organisation
Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)


How to cite

APA:
Oehlschläger, F., Müller, J., Künecke, U., Hoelzing, A., Schurr, R., Hock, R., & Wellmann, P. (2010). Determination of material inhomogeneities in CuIn(Se,S)(2) solar cell materials by high resolution cathodoluminescence topography. Energy Procedia, 2(1), 183-188. https://dx.doi.org/10.1016/j.egypro.2010.07.026

MLA:
Oehlschläger, Felix, et al. "Determination of material inhomogeneities in CuIn(Se,S)(2) solar cell materials by high resolution cathodoluminescence topography." Energy Procedia 2.1 (2010): 183-188.

BibTeX: 

Last updated on 2019-29-05 at 08:43