کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5451002 | 1513073 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication of Cu2SnS3 thin film solar cells using Cu/Sn layered metallic precursors prepared by a sputtering process
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
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چکیده انگلیسی
As an alternative to Cu(In,Ga)(S,Se)2 (CIGS) and Cu2ZnSn(S,Se)4 (CZTS)-based thin film solar cells (TFSCs), the ternary chalcogenide semiconductor Cu2SnS3 (CTS) is an emerging material with suitable optical band gap energy ranging from 0.93 to 1.77Â eV and high absorption coefficients (>104Â cmâ1). In this study, we report the preparation of high-quality CTS thin films by the annealing of the sputtered Cu-Sn metallic precursor under S vapor atmosphere in a graphite box using the RTA process. Furthermore, the influence of different S vapor partial pressures in the graphite box during annealing on the properties of the CTS thin films has been investigated systematically. It is observed that the properties and photovoltaic performance of the CTS thin films are strongly dependent on the S vapor partial pressure during annealing. The monoclinic crystal structure is observed from X-ray diffraction (XRD) of the (1Â 1Â 2), (2Â 2Â 0), and (3Â 1Â 2) planes, and it is further confirmed using Raman spectroscopy by the presence of Raman peaks at 295 and 354Â cmâ1. The direct band gap energy is found to be 0.91Â eV by extrapolation from external quantum efficiency (EQE) measurement of a CTS thin film annealed using 60Â mg of S powder. The preliminary best power conversion efficiency (PCE) of 2.21% with a short circuit current density of 29.7Â mA/cm2, an open circuit voltage of 179.5Â mV, and a fill factor of 41% have been obtained for a CTS thin film annealed using 60Â mg of S powder, although the processing parameters have not been optimized.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy - Volume 145, 15 March 2017, Pages 27-32
Journal: Solar Energy - Volume 145, 15 March 2017, Pages 27-32
نویسندگان
Ju Yeon Lee, In Young Kim, Mahesh P. Surywanshi, Uma V. Ghorpade, Dong Seon Lee, Jin Hyeok Kim,