Preparation and optical properties of Ho3+-doped YSZ single crystals
Preparation and optical properties of Ho3+-doped YSZ single crystals
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DOI：
10.1007/s00339-018-2284-z
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发表时间：
2018-11
期刊：
影响因子：
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通讯作者：
Xiaojun Tan;Shoulei Xu;Lei Zhang;Fenhong Liu;B. Goodman;W. Deng
中科院分区：
文献类型：
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作者：
Xiaojun Tan;Shoulei Xu;Lei Zhang;Fenhong Liu;B. Goodman;W. Deng
采用光学浮区法制备了不同钬掺杂量的氧化钇稳定氧化锆（YSZ）单晶，并用XRD和拉曼光谱对其结构和物相组成进行了表征。这些表明，亚稳的四氢呋喃相是稳定的取代。Ho 3+掺杂的YSZ单晶在可见光区的透过率均大于85%。荧光光谱的测量表明，当用波长为448 nm的光激发时，晶体在553.5 nm处有一个强发射，在671 nm和759 nm处有两个弱发射峰。掺杂0.75 mol% Ho 2 O 3的YSZ在绿色区具有较高的荧光强度和色纯度（99.7%），表明其可用于产生高效的绿色发射。
Single crystals of yttria-stabilized zirconia (YSZ) doped with different contents of holmium were prepared by the optical floating zone method, and their structures and phase composition were characterized by XRD and Raman spectroscopy. These showed that the metastable tetragonal phase was stabilized by the substitutions. Transmittance of each of the Ho3+-doped YSZ single crystals was larger than 85% in the visible region. Measurements of fluorescence spectra indicated a strong emission at a wavelength of 553.5 nm, and two weak emission peaks at 671 nm and 759 nm when the crystals were excited by light with a wavelength of 448 nm. The YSZ doped with 0.75 mol% of Ho2O3had a relatively higher fluorescence intensity and possessed high color purity (99.7%) in the green region, indicating that it can be used to produce efficient green emission.