Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	The influence of stoichiometry and annealing temperature on the properties of CuIn0.7Ga0.3Se2 and CuIn 0.7Ga0.3Te2 thin films
Δημιουργός/Συγγραφέας:	Fiat S. Koralli P. Bacaksiz E. Giannakopoulos K.P. [EL] Κομπίτσας, Μιχάλης[EN] Kompitsas, Michael G. Manolakos D.E. Çankaya G.
Ημερομηνία:	2013
Γλώσσα:	Αγγλικά
ISSN:	0040-6090
DOI:	10.1016/j.tsf.2013.07.032
Περίληψη:	CuIn0.7Ga0.3Se2 and CuIn 0.7Ga0.3Te2 thin films have been prepared by the electron beam evaporation technique and annealed at various temperatures (450 C, 475 C, 500 C, 525 C and 600 C).Optical transmittance measurements have been carried out in the wavelength range 300-1200 nm.The films show high absorption in the solar radiation spectral range, and their optical band gaps range from 1.33 eV to 1.22 eV for CuIn0.7Ga0.3Se 2 and from 1.13 eV to 1.06 eV for CuIn0.7Ga 0.3Te2, depending on the annealing temperature.X-ray diffraction (XRD) indicates the films are crystallized in a single phase with the chalcopyrite structure and a preferred orientation along the (112) plane.The dependence of the lattice parameters on the composition of the films is investigated.Surface morphology has been determined by atomic force microscopy (AFM) and scanning electron microscopy (SEM).These results are correlated with the XRD microstructural analysis.© 2013 Elsevier B.V.All rights reserved.
Τίτλος πηγής δημοσίευσης:	Thin Solid Films
Τόμος/Κεφάλαιο:	545
Σελίδες:	64-70
Θεματική Κατηγορία:	[EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry
Λέξεις-Κλειδιά:	Atomic force microscopy Chalcopyrite compounds Copper indium gallium selenide Copper indium gallium telluride Electron-beam evaporation Optical characterization X-ray diffraction
Αξιολόγηση από ομότιμους (peer reviewed):	Ναι
Σημειώσεις:	2010/12 This work is supported by the Gaziosmanpaşa University Scientific Research Project (BAP) with the grand contract no. 2010/12 .
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο