کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1607875 1516238 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Physical properties of CdO nanoparticles synthesized by green chemistry via Hibiscus Sabdariffa flower extract
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Physical properties of CdO nanoparticles synthesized by green chemistry via Hibiscus Sabdariffa flower extract
چکیده انگلیسی


• 1st time report on synthesis of CdO nanoparticles by a green process via Hibiscus Sabdariffa flower's extract.
• Hibiscus Sabdariffa flower natural extract was used as an effective reduction/oxidizing agent.
• Pure CdO nanoparticles were confirmed via HRTEM, HRSEM, EDS, XRD, PL, XPS, and UV-VIS spectroscopy.

The first time synthesis of CdO nano-crystals by green chemistry process based on Hibiscus Sabdariffa flower extract and their main physical properties are reported. While it is shown that the natural extract acts as an effective chelating agent in facilitating the formation of the CdO nanoparticles, the structural analysis by X-rays diffraction analysis shows that the nano-crystals exhibit a pure single phase Monteponite. Their photoluminescence display a relatively an intense and narrow emission peak at 551 nm. Their direct and indirect bandgaps were found to be 2.7 and 2.1 eV. The investigation of their surface properties showed the existence of a double coordination: presence of CdO and CdO2 type bonds. The current–voltage characteristic of the CdO nanoparticles film/c-Si heterojunction solar cell under dark and illumination conditions showed that such a heterojunction has acceptable rectification characteristics with a forward current saturating at ∼1 V.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 655, 15 January 2016, Pages 314–320
نویسندگان
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