کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5351628 1503662 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
ZnMnO diluted magnetic semiconductor nanoparticles: Synthesis by laser ablation in liquids, optical and magneto-optical properties
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
ZnMnO diluted magnetic semiconductor nanoparticles: Synthesis by laser ablation in liquids, optical and magneto-optical properties
چکیده انگلیسی


- Zn1−xMnxO nanoparticles were synthesized by pulsed laser ablation in liquids.
- In SEM images flower-like nanostructures were revealed.
- Absorption edge of Zn0.95Mn0.05O nanoparticles exhibits blue shift due to confinement effect.
- The Faraday rotation studies confirm paramagnetism of Zn0.95Mn0.05O nanoparticles.

Nanoparticles of ZnO and Zn1−xMnxO were synthesized by pulsed laser ablation in liquid medium (PLAL). Metal zinc target was used for preparing of pure ZnO nanostructures and Zn1−xMnxO ceramic plates served for preparing of ternary nanoparticles. As synthesized nanomaterials are characterized using scanning electron microscopy (SEM), energy dispersive spectroscopy analysis (EDS), atomic force microscopy (AFM), UV-vis absorption, photoluminescence and Faraday rotation spectroscopy. SEM images showed a well-defined flower-like nanostructures. Absorption edge of Zn0.95Mn0.05O nanoparticles in colloid solution exhibits blue shift due to confinement effect. The observed photoluminescence peaks are attributed to the band-edge transitions and vacancies or defects. The Faraday rotation as a function of photon energy demonstrates behavior typical for diluted magnetic semiconductors (DMSs) in paramagnetic state.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 302, 30 May 2014, Pages 205-208
نویسندگان
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