کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
78628 49338 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structure, composition and optical properties of Cu2ZnSnS4 thin films deposited by Pulsed Laser Deposition method
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Structure, composition and optical properties of Cu2ZnSnS4 thin films deposited by Pulsed Laser Deposition method
چکیده انگلیسی

Polycrystalline Cu2ZnSnS4 (CZTS) thin films have been directly deposited on heating Mo-coated glass substrates by Pulsed Laser Deposition (PLD) method. The results of energy dispersive X-ray spectroscopy (EDX) indicate that these CZTS thin films are Cu-rich and S-poor. The combination of X-ray diffraction (XRD) results and Raman spectroscopy reveals that these thin films exhibit strong preferential orientation of grains along [1 1 2] direction and small Cu2−xS phase easily exists in CZTS thin films. The lattice parameters and grain sizes have been examined based on XRD patterns and Atom Force Microscopy (AFM). The band gap (Eg) of CZTS thin films, which are determined by reflection spectroscopy varies from 1.53 to 1.98 eV, depending on substrate temperature (Tsub). The optical absorption coefficient of CZTS thin film (Tsub=450 °C) measured by spectroscopic ellipsometry (SE) is above 104 cm−1.

Figure optionsDownload as PowerPoint slideHighlights
► Cu2ZnSnS4 films are directly deposited on Mo-coated glass by Pulsed Laser Deposition.
► These films are Cu-rich and S-poor and exhibit strong [1 1 2] texture.
► Compressive internal stress exists in all of these films.
► Eg of these films varies from 1.53 to 1.98 eV, as the function of growth temperature.
► Optical absorption coefficient of the Cu2ZnSnS4 film is above 104 cm−1.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy Materials and Solar Cells - Volume 95, Issue 10, October 2011, Pages 2907–2913
نویسندگان
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