کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5026349 | 1369864 | 2016 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structure and Optical Properties of Cu (In0.7, Ga0.3) Se2 Absorbers on Copper Substrate for Photovoltaic Solar Cells Application
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Polycrystalline thin films Cu (In0.7, Ga0.3) Se2 (CIGSe) were grown on copper foils at various cathodic potentials by using electrodeposition technique. Scanning electron microscopy (SEM) displays that average diameter of CIGSe grain increases from 0.1 μm to 1 μm when cathodic potential decreases. The structure and surface morphology were investigated by x-ray diffraction (XRD) and atomic force microscopy (AFM) techniques. This structure study shows that the thin films were well crystallized in chalcopyrite structure without unwanted secondary phase with preferred orientation along (112) plane. Energy-dispersive x-ray analysis (EDAX) confirms the existence of CIGSe single phase on copper substrate. AFM analysis indicated that the root mean square (RMS) roughness decreases from 64.2 to 27.4 when the potential deposition increases from â0.95 V to â0.77 V. Using Raman scattering spectroscopy, the A1 optical phonon mode was observed in 173 cmâ1 and two other weak peaks detected at 214 cmâ1 and 225 cmâ1 associated to the B2 and E modes of the CIGSe phase. Through spectroscopy ellipsometry (SE) analysis, three layer optical model was exploited to derive the optical properties and layer thickness of the CIGSe film by least-squares fitting the measured variation in polarization light versus the obtained microstructure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 127, Issue 23, December 2016, Pages 11469-11478
Journal: Optik - International Journal for Light and Electron Optics - Volume 127, Issue 23, December 2016, Pages 11469-11478
نویسندگان
Adel Chihi,