کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10142165 1646091 2019 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An efficient route to assemble novel organometal halide perovskites and emission evolution performance
ترجمه فارسی عنوان
یک مسیر کارآمد برای جمع آوری پروموسیت های جدید هالید متشکل از فلزات فلزی و عملکرد تکاملی انتشار
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
چکیده انگلیسی
Hybrid organic-inorganic perovskites are a new class of photoluminescent and low-cost nanomaterials. Chemical transformation using less-toxic elements under ambient reaction conditions has emerged as a major issue due to pressures on environment and human health. Herein, the synthesis of copper-incorporated CH3NH3Pb1-xCuxBr3 based on a ligand-assisted reprecipitation (LARP) technique has been reported. The achieved quantum dots have an average size of 8 nm and the existence of copper has been verified by morphological studies. The nanoscale particles exhibited strong blue luminescence upon the excitation at 370 nm. The replacement by Cu2+ resulted in emission evolution from 468 to 513 nm and the photophysical properties were discussed. This study will open a new approach to control the fluorescence of perovskite-type quantum dots, which will extend its application in different areas.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 771, 15 January 2019, Pages 418-423
نویسندگان
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