Cathodoluminescence of Cu(In,Ga)Se[sub 2] thin films used in high-efficiency solar cells

Romero, Manuel J.; Ramanathan, Kannan; Contreras, Miguel A.; Al-Jassim, Mowafak M.; Noufi, Rommel; Sheldon, Peter
December 2003
Applied Physics Letters;12/8/2003, Vol. 83 Issue 23, p4770
Academic Journal
Cathodoluminescence spectroscopy and spectrum imaging are employed to investigate Cu(In,Ga)Se[sub 2] (CIGS) thin films used in high-efficiency solar cells. We have found a nonuniform spatial distribution for the photon energy. The shift by decade of the emission spectrum is also found to depend systematically on the location of excitation. In addition, the photon energy at grain boundaries is not affected by the external excitation. A model for radiative recombination to be applied to these chalcopyrite compounds should explain these results, and some suggestions are considered. © 2003 American Institute of Physics.


Related Articles

  • Cathodoluminescence of Cu diffusion in CdTe thin films for CdTe/CdS solar cells. Romero, Manuel J.; Albin, David S.; Al-Jassim, Mowafak M.; Wu, Xuanzhi; Moutinho, Helio R.; Dhere, Ramesh G. // Applied Physics Letters;10/14/2002, Vol. 81 Issue 16, p2962 

    We investigate the distribution of Cu acceptor states in CdTe thin films used in high-efficiency solar cells. These states are CUed and Cu[sup +, sub i - V[sup -, sub Cd] complexes, which are relatively deep and shallow acceptors, respectively. Cathodoluminescence spectroscopy and imaging show...

  • Combined electron backscatter diffraction and cathodoluminescence measurements on CuInS2/Mo/glass stacks and CuInS2 thin-film solar cells. Abou-Ras, D.; Jahn, U.; Nichterwitz, M.; Unold, T.; Klaer, J.; Schock, H.-W. // Journal of Applied Physics;Jan2010, Vol. 107 Issue 1, p014311-1 

    Electron backscatter diffraction (EBSD) and cathodoluminescence (CL) measurements in a scanning electron microscope were performed on cross sections of CuInS2 thin films and ZnO/CdS/CuInS2/Mo/glass thin-film solar cells. The CuInS2 layers analyzed for the present study were grown by a rapid...

  • Stress distribution mapping of GaAs on Si conformal layers. Martínez, O.; Sanz, L. F.; Jiménez, J.; Martín-Martín, A.; Gérard, B.; Gil-Lafon, E. // Journal of Applied Physics;3/1/2007, Vol. 101 Issue 5, p054901 

    Cathodoluminescence and micro-Raman studies of GaAs on Si layers grown by the conformal method show a characteristic quasiperiodic modulation of the stress distribution perpendicular to the growth direction. Using the capability of the spectral imaging in the cathodoluminescence technique, the...

  • Explanation of red spectral shifts at CdTe grain boundaries. Moseley, J.; Al-Jassim, M. M.; Moutinho, H. R.; Guthrey, H. L.; Metzger, W. K.; Ahrenkiel, R. K. // Applied Physics Letters;12/2/2013, Vol. 103 Issue 23, p233103 

    We use cathodoluminescence spectrum imaging to investigate the nanoscale properties of CdTe thin-films for solar cells deposited by close-spaced sublimation. Luminescence emission is detected (bands) at ∼1.32 eV and ∼1.50 eV, which are consistent with Z- and Y-bands. For the grains in...

  • NEW COEFFICIENTS OF THE MINORITY CARRIER LIFETIME AND BANDGAP NARROWING MODELS IN THE TRANSPARENT EMITTER OF THIN FILM SILICON SOLAR CELLS. Zerga, A.; Benosman, M.; Dujardin, F.; Benyoucef, B.; Charles, J.-P. // Active & Passive Electronic Components;Jan2003, Vol. 26 Issue 1, p1 

    In this study we have determined new coefficients for the physical model describing the band-gap narrowing and the minority carriers lifetime. This was accomplished according to the doping level of the thin emitter. This model allows us to take into account both the effects of the heavy doping...

  • Band offsets at the ZnSe/CuGaSe[sub 2] (001) heterointerface. Bauknecht, A.; Blieske, U.; Kampschulte, T.; Albert, J.; Sehnert, H.; Lux-Steiner, M.Ch.; Klein, A.; Jaegermann, W. // Applied Physics Letters;2/22/1999, Vol. 74 Issue 8, p1099 

    Studies the formation of the ZnSe/CuGaSe[sub 2] thin-film solar cells by x-ray photoelectron spectroscopy. Generation of ZnSe on CuGaSe[sub 2] epilayers; Valence-band offset determined; Deposition of ZnSe from a homemade Knudsen cell.

  • Spatial collection efficiency of a solar cell. Sinkkonen, J.; Ruokolainen, J. // Applied Physics Letters;1/9/1995, Vol. 66 Issue 2, p206 

    Investigates the spatial collection efficiency C(z) of a solar cell. Determination of the C function from the spectral response; Information on several cell parameters; Examples of c-silicon and thin films cadmium silicide/cadmium telluride cells.

  • N-side illuminated microcrystalline silicon solar cells. Gross, A.; Vetterl, O.; Lambertz, A.; Finger, F.; Wagner, H.; Dasgupta, A. // Applied Physics Letters;10/22/2001, Vol. 79 Issue 17, p2841 

    Thin-film microcrystalline silicon solar cells illuminated through the n layer were studied and compared with classical p-layer illuminated cells. To investigate the corresponding charge carrier extraction properties, variation of the intrinsic absorber layer thickness was carried out. It was...

  • Influence of Na and H2O on the surface properties of Cu(In,Ga)Se2 thin films. Heske, C.; Richter, G.; Zhonghui Chen; Fink, R.; Umbach, E.; Riedl, W.; Karg, F. // Journal of Applied Physics;9/1/1997, Vol. 82 Issue 5, p2411 

    Investigates the influence of humidity on the electronic surface of Na-containing polycrystalline Cu(In,Ga)Se2 solar cell thin films on soda-lime glass substrates by x-ray, photo ultraviolet photoemission and by Auger electron spectroscopy. Different interactions between Na, H2O and the...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics