کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8012791 | 1517161 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mixed-halide Pb-Sn binary perovskite films with various Sn-content for Pb-reduced solar cells
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
We proposed and examined a material group of methylammonium Pb-Sn mixed halide (MAPb1âxSnxI2.6Br0.4) with various Sn-content (xâ¯=â¯0.2-0.8) for Pb-reduced perovskite solar cells. With suitable Pb-Sn ratio (xâ¯=â¯0.4-0.6), dense coverage of films with better crystallinity was obtained compared with low Sn ratio (xâ¯=â¯0.2). For excess Sn ratio (xâ¯=â¯0.8), poor film-uniformity was found in spite of its enhanced crystallinity. Optimum composition (xâ¯=â¯0.6) provided an impressive power conversion efficiency of 13.4% with remarkable photocurrent output stability, which is related to suppression of trap-assisted recombination regarding the perovskite materials. This promising material paves the way for development of highly efficient, Pb-reduced perovskite photovoltaic cells.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 227, 15 September 2018, Pages 311-314
Journal: Materials Letters - Volume 227, 15 September 2018, Pages 311-314
نویسندگان
Seojun Lee, Tae-Jun Ha, Dong-Won Kang,