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Han, J., Liao, C., Jiang, T., Xie, H., Zhao, K. & Besland, M. .-P. (2013) Investigation of copper indium gallium selenide material growth by selenization of metallic precursors. J. Cryst. Growth, 382 56–60. 
Added by: Laurent Cournède (2016-03-10 21:23:29)
Type de référence: Article
DOI: 10.1016/j.jcrysgro.2013.08.009
Numéro d'identification (ISBN etc.): 0022-0248
Clé BibTeX: Han2013b
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Catégories: CESES
Mots-clés: absorbers, Characterization, cigs formation, cu(in, cuinse2, diffusion, film solar-cells, ga)se-2, Inorganic compounds, morphology, Physical vapor deposition processes, Quaternary, se vapor, Semiconducting alloys, Semiconducting indium compounds, Solar cells, temperature, thin-films
Créateurs: Besland, Han, Jiang, Liao, Xie, Zhao
Collection: J. Cryst. Growth
Consultations : 11/938
Indice de consultation : 5%
Indice de popularité : 1.25%
Résumé     
We report a study of copper indium gallium selenide (CIGS) thin film growth in the annealing process at temperature range from 120 degrees C to 600 degrees C. Thin films were prepared by sputtering metal precursors and subsequent selenization process. Surface morphologies of thin films were observed by using high resolution field emission scanning electron microscopy (FESEM). Phases in quaternary systems Cu-In-Ga-Se were investigated by X-ray diffraction (XRD). Evolution of crystalline structure in the film surface was studied by Raman spectra. A possible reaction path from metallic precursors to a single CIGS phase was obtained by merging all results of SEM, XRD and Raman. Above 210 degrees C, selenium reacted with Cu and In to form binary selenide. CuSe crystalline platelets were observed clearly in the film surfaces. When temperature was reaching 380 degrees C, Cu2-xSe and InSe reacted with excess Se to form CuInSe2 (CIS) and contributed to the grain growth. Above 410 degrees C, Ga-rich phase was detected in the films. With increased temperature, Ga diffused into CIS crystalline lattices. Finally, at 600 degrees C, a single phase of Cu-In-Ga-Se quaternary system was formed. A large number of triangular and hexagonal structures were observed in the film due to a re-crystalline process at a high annealing temperature. (c) 2013 Elsevier B.V. All rights reserved.
Added by: Laurent Cournède  
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