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مقاله پژوهشی: تأثیر شرایط و روش لایه‌نشانی در خواص فیزیکی لایههای MAPbI3 به منظور استفاده در سلول خورشیدی پروسکایتی | ||
| فیزیک کاربردی ایران | ||
| دوره 10، شماره 4 - شماره پیاپی 23، دی 1399، صفحه 55-66 اصل مقاله (3.28 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22051/ijap.2021.34610.1191 | ||
| نویسندگان | ||
| نفیسه معماریان* 1؛ رضا رجب بلوکات2 | ||
| 1استادیار، دانشکدۀ فیزیک، دانشگاه سمنان، سمنان، ایران | ||
| 2دانش آموختۀ کارشناسی ارشد، دانشکدۀ فیزیک، دانشگاه سمنان، سمنان، ایران | ||
| چکیده | ||
| در سالهای اخیر سلول‌های خورشیدی با جاذب پروسکایت به دلیل افزایش فوقالعادۀ بازده، شدیداً مورد توجه محققان قرار گرفتهاند. در این پژوهش لایههای نازک پروسکایت متیل آمونیم سرب یدید (MAPbI3) به روش رشد دومرحلهای تهیه شده است. دو روش چرخشی‌ـ‌چرخشی و چرخشی‌ـ‌غوطهوری شد و ویژگیهای فیزیکی لایههای به‌دست‌آمده از این روشها مقایسه شد. ویژگیهای اپتیکی و ساختاری آن‌ها توسط روش‌های UV-VIS ، XRD و FE-SEM بررسی شده است. نتایج حاصل از بررسیهای ساختاری، فاز مکعبی را برای پروسکایت MAPbI3 نشان داد. همچنین مورفولوژی سطح لایه‌ها در تصاویر FE-SEM مشخص شد، که تشکیل یک لایۀ منسجم، بدون هیچگونه ترک و ناپیوستگی را تأیید میکند. نتایج نشان داد که گاف اپتیکی نمونه‌ها در بازۀ eV 59/1- 54/1 است. همچنین اثر تغییر غلظت مادۀ اولیه بر خواص فیزیکی لایههای MAPbI3 تهیه‌شده به هر دو روش، مشخص شد. نتایج نشان داد که در هر دو روش با افزایش غلظت PbI2 لایههای با ضخامت و جذب بیشتر ساخته میشود. | ||
| کلیدواژه‌ها | ||
| جاذب پروسکایت؛ متیل آمونیم سرب یدید؛ لایۀ نازک؛ لایه‌نشانی چرخشی؛ لایه‌نشانی غوطه‌وری | ||
| عنوان مقاله [English] | ||
| Research Paper: Effect of Deposition Condition and Method on Physical Properties of MAPbI3 Layers for Perovskite Solar Cell Purpose | ||
| نویسندگان [English] | ||
| Nafiseh Memarian1؛ Reza Rajab Bolookat2 | ||
| 1Assistant Professor, Faculty of Physics, Semnan University, Semnan, Iran | ||
| 2M.Sc. in Physics, Faculty of Physics, Semnan University, Semnan, Iran. | ||
| چکیده [English] | ||
| In recent years, solar cells with perovskite absorber have attracted considerable attention due to rapid increase in their efficiency. In this research, MAPbI3 layers were coated by a two-step method. Spin-spin and spin-dip methods were studied and physical properties of prepared layers were compared. Their optical and structural properties were investigated by UV-VIS, XRD and FE-SEM techniques. The results of structural analysis showed the formation of cubic phase for MAPbI3 perovskite. In addition, the surface morphology of the layers was determined by FE-SEM images, which confirmed the formation of a uniform and cohesive layer, without any cracks or discontinuities on the surface of layer. Results showed that the optical band gap of the samples are in the range of 1.54-1.59 eV. Furthermore, the effect of precursor concentration on the physical properties of MAPbI3 layers prepared by both methods (spin-spin and spin-dip) was also investigated. The results showed that in both methods, with increasing PbI2 concentration, thicker layers with higher adsorption can be prepared. | ||
| کلیدواژه‌ها [English] | ||
| Perovskite Absorber, Methylammonium Lead Iodide, Thin Film, Spin Coating, Dip Coating | ||
| مراجع | ||
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