کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5006245 1461390 2017 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on cobalt doped tin based perovskite material with enhanced air stability
ترجمه فارسی عنوان
بررسی مواد پروسکیتی بر پایه کوپلت کوبالت با پایداری هوایی افزایش یافته
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
چکیده انگلیسی
Although the power conversion efficiency of the lead-halide perovskite solar cells boost to >20%, the toxicity of lead hinders their large-scale implementation. Tin based perovskite have less toxicity, however its air stability is a big challenge. In this study, the air stability of tin based perovskite is improved by doping cobalt. The cobalt doped tin based perovskite thin films (GASn1−xCoxI2−2xCl1+2x) with cubic structure are prepared by one-step spin coating method. All GASn1−xCoxI2−2xCl1+2x (0.025≤x≤0.15) perovskite materials exhibit strong absorption in the visible light spectrum range. According to voltammetric measurement, the highest occupied molecule orbit (HOMO) and the lowest unoccupied molecule orbit (LUMO) of GASn1−xCoxI2−2xCl1+2x (x=0.15) are −5.45 and −3.99 eV, respectively, and the bandgap is calculated to be 1.46 eV. The binding energy increase of Sn3d and I3d for the cobalt doped tin based perovskite thin film might be the reason for enhanced air stability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science in Semiconductor Processing - Volume 57, January 2017, Pages 95-98
نویسندگان
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