کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7887172 1509788 2018 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Low-pressure assisted solution synthesis of CH3NH3PbI3-xClx perovskite solar cells
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Low-pressure assisted solution synthesis of CH3NH3PbI3-xClx perovskite solar cells
چکیده انگلیسی
During the preparation of perovskite film, the common one-step method always generates an island-like structure. Large exposed areas lead to direct contact between positive and negative electrodes. Thus, the photoelectric performance is seriously deteriorated. Here, a low-pressure assisted method was introduced to fabricate dense halide perovskite films. The crystalline quality of the films was investigated by X-ray diffraction (XRD) spectroscopy. The film morphology and the device structure were characterized by atomic force microscope (AFM) and field emission scanning electron microscopy (FESEM). The effects of film quality on charge transport were discussed. After low-pressure treatment, the open-circuit voltage (Voc), short-circuit photocurrent (Jsc), fill factor (FF) and power conversion efficiency (PCE) for the device were improved to 0.755 V, 20.045 mA cm−2, 0.52% and 7.9%, respectively. The optimized and centrally distributed performance parameters illustrate that the low-pressure assisted method can be used to improve the quality and uniformity of perovskite films.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 10, July 2018, Pages 11603-11609
نویسندگان
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