کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1591109 | 1515560 | 2016 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase transformation and fluorescent enhancement of ErF3 at high pressure
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Phase transformation and fluorescent enhancement of ErF3 at high pressure Phase transformation and fluorescent enhancement of ErF3 at high pressure](/preview/png/1591109.png)
چکیده انگلیسی
Pressure-induced phase transformation and fluorescent properties of ErF3 were investigated here using in-situ synchrotron X-ray diffraction and photoluminescence up to 32.1 GPa at room temperature. Results showed that ErF3 underwent a reversible pressure-induced phase transition from the β-YF3-type to the fluocerite LaF3-type at 9.8 GPa. The bulk moduli B0 for low- and high-pressure phases were determined to be 130 and 208 GPa, respectively. Photoluminescencent studies showed that new emission lines belonging to the transition of 2H11/2â4I15/2, 4S3/2â4I15/2, and 4F9/2â4I15/2 appeared during phase transition, suggesting pressure-induced electronic band splitting. Remarkably, significant pressure-induced enhancement of photoluminescence was observed, which was attributed to lattice distortion of the material under high pressure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 242, September 2016, Pages 30-35
Journal: Solid State Communications - Volume 242, September 2016, Pages 30-35
نویسندگان
Wentao Li, Xiangting Ren, Yanwei Huang, Zhenhai Yu, Zhongying Mi, Nobumichi Tamura, Xiaodong Li, Fang Peng, Lin Wang,