外文题目: Structure and optical properties of Er-doped CaO-Al2O3 (Ga2O3) glasses fabricated by aerodynamic levitation
作者: Xu, Cheng; Wang, Chaoyue; Yu, Jianding; Zhang, Ruili; Ren, Jinjun; Liu, Xiaofeng; Qiu, Jianrong
刊名: J. Am. Ceram. Soc.
年: 2017 卷: 100 期: 7 页： 2852--2858
英文关键词:
aerodynamic levitation; containerless processing; optical properties; quantum yields; structure
CALCIUM ALUMINATE GLASSES; HIGH REFRACTIVE-INDEX; HYPER-RAMAN SCATTERING; AL-27 NMR; BOSON PEAK; SPECTROSCOPY; LUMINESCENCE; CRYSTALS; FIBERS; SILICA
英文摘要:
We fabricated a series of stable Er-doped CaO-Al2O3(Ga2O3) glasses by aerodynamic levitation (ADL) method. Using thermal analysis, we studied the influence of composition on the thermal stability of the glasses. The results unraveled the significance of composition on the stability of glasses. Magic angle spinning nuclear magnetic resonance (MAS-NMR) and Raman spectra were used to analyze the glass microstructure. The optical and spectroscopic properties were examined by UV-Vis absorption, steady-state fluorescence spectroscopy, transient state fluorescence spectroscopy, and luminescence quantum yield measurements. The results unraveled a clear concentration-dependent up-conversion and NIR emissions of Er3+, with obvious spectral broadening and redshift. The related mechanisms of decrease in fluorescent lifetime (from about 9ms to 2ms) and quantum yield (from about 75% to 5%) are discussed.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1111/jace.14862


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