کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7835761 | 1503537 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Splitting of the ultraviolet plasmon resonance from controlling FePt nanoparticles morphology
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We show a designed FePt nanoparticles for embedding in a single crystal MgO matrix and demonstrate plasmon resonance absorption can appear in the ultraviolet region. The state of the FePt alloy is confirmed by X-ray photoelectron spectroscopy and selected area electron diffraction. By increasing the laser energy density from 4 to 6âJ/cm2, the shape of the FePt nanoparticles is changed from quasi-spherical to quasi-elliptical. Compared with pure MgO, a single plasmon resonance peak at 234ânm was found in the ultraviolet region for the embedded FePt. Increasing the laser energy density induces peak splitting into two peaks, located at 225 and 262ânm, respectively. With a high laser energy density, a red-shift and a blue-shift are observed for the two peaks, respectively. These results are accordance with the theoretical calculations. The ultraviolet plasmon resonance absorption for FePt NPs can be tuned by changing the shape of the nanoparticles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 435, 30 March 2018, Pages 1-6
Journal: Applied Surface Science - Volume 435, 30 March 2018, Pages 1-6
نویسندگان
Jian Yu, Tingting Xiao, Xuemin Wang, Yan Zhao, Xiaojia Li, Xibin Xu, Zhengwei Xiong, Xinming Wang, Liping Peng, Jin Wang, Hongbu Yin, Jie Chen, Gang Meng, Yifan Li, Weidong Wu,