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Macielak, K., Maciaszek, M., Igalson, M., Zabierowski, P. & Barreau, N. (2015) Persistent Photoconductivity in Polycrystalline Cu(In,Ga)Se-2 Thin Films: Experiment Versus Theoretical Predictions. IEEE J. Photovolt. 5 1206–1211.
Added by: Laurent Cournède (2016-03-10 18:36:41) |
| Type de référence: Article DOI: 10.1109/JPHOTOV.2015.2423491 Numéro d'identification (ISBN etc.): 2156-3381 Clé BibTeX: Macielak2015 Voir tous les détails bibliographiques  |
Catégories: CESES, INTERNATIONAL Mots-clés: cu(in, Defects, devices, Ga)Se-2 ( CIGS) thin-film solar cells, metastabilities, model, photoconductivity, relaxation, solar-cells Créateurs: Barreau, Igalson, Maciaszek, Macielak, Zabierowski Collection: IEEE J. Photovolt. |
Consultations : 1/576
Indice de consultation : 4% Indice de popularité : 1% |
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The persistent increase of conductivity after illumination in CuInGaSe2 thin films was investigated as a function of the temperature and light intensity at its creation. Experimentally observed dependences were compared with the results of calculations based on the Lany-Zunger (L-Z) model relating the phenomenon to configurational changes of V-Se-V-Cu divacancy. The calculations showed that the description of all results within this model would require, in some cases, unrealistic values of cross section for electron capture by the center in donor configuration. We concluded that the model does not fully account for the observed phenomena, and that additional mechanisms, in particular to explain the temperature effect, are required.
Added by: Laurent Cournède |