کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6534453 1420647 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
α-SnSe thin film solar cells produced by selenization of magnetron sputtered tin precursors
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
α-SnSe thin film solar cells produced by selenization of magnetron sputtered tin precursors
چکیده انگلیسی
The temperature-pressure-composition phase diagrams of Sn-Se system were calculated using the CALPHAD (CALculation of PHase Diagram) models. The phase diagrams showed the formation of α-SnSe phase at selenium-rich side with pressures lower than atmospheric pressure and in the temperature range of 300-500 °C. As a first step, the effect of Sn/Se ratio on the phase formation was studied experimentally by selenization of tin metal precursor films using effusion cell evaporation. The Sn/Se ratio was varied by changing the selenium weight in the range of 0.5-1.5 g. The physical properties of the films were studied with suitable characterization techniques and the obtained results showed the formation of single phase α-SnSe at 1.0 g of selenium. Further, α-SnSe/CdS interface was studied by photoelectron yield spectroscopy (PYS), which showed a 'type-I' band alignment with a valence-band offset (∆Ev) of 1.3 eV and a conduction-band offset (∆Ec) of 0.2 eV. Finally, α-SnSe solar cells with a device structure of soda-lime glass (SLG)/Mo/α-SnSe/CdS/i-ZnO/Al:ZnO/Ni/Ag were fabricated and a power conversation efficiency of 1.42% was achieved at 1.0 g of selenium.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy Materials and Solar Cells - Volume 176, March 2018, Pages 251-258
نویسندگان
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