A non-rare-earth-doped self-activated blue fluorescent material of transparent glass-ceramics containing single-phase NaY(MoO4)2: the controllable synthesis, crystallization behavior and luminescent properties
A non-rare-earth-doped self-activated blue fluorescent material of transparent glass-ceramics containing single-phase NaY(MoO4)2: the controllable synthesis, crystallization behavior and luminescent properties
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DOI：
10.1016/j.jallcom.2023.172179
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发表时间：
2023-09
影响因子：
6.2
通讯作者：
Juxia Tong;Zhiwei Luo;Xinzhu Liu;Haozhang Liang;Xinyu Liu;Pan He;A. Lu
中科院分区：
文献类型：
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作者：
Juxia Tong;Zhiwei Luo;Xinzhu Liu;Haozhang Liang;Xinyu Liu;Pan He;A. Lu
采用熔融急冷法制备了成分为50 SiO2 - 20 B2 O3 - 20 Na 2 O-6 ZnO-3 MoO 3 - 1 Y2 O3（mol%）的玻璃，并经热处理得到了相应的微晶玻璃。通过DSC测试对玻璃的析晶行为进行了表征。通过XRD和SEM对所合成的NaY（MoO 4）2晶体的结构和晶粒尺寸进行分析，发现随着晶化温度的升高和晶化时间的延长，NaY（MoO 4）2晶体的晶粒尺寸逐渐增大，其晶粒尺寸在27-45 nm之间。与前体玻璃相比，玻璃-陶瓷的透射率略有下降，但仍保持较高（> 80%）。在365 nm激发下，微晶玻璃显示出较宽的发光带，这与[MoO 4]2-单元中Mo 6 +→O2-的电荷转移有关。在590 °C下热处理3 h为最佳热处理制度，其CIE色坐标位于蓝光区，表明含单相NaY（MoO 4）2的非稀土掺杂自激活发光微晶玻璃在蓝光发光领域具有潜在的应用前景。
The glass with components of 50SiO2-20B2O3-20Na2O-6ZnO-3MoO3-1Y2O3(mol%) was synthesized by the melt-quenching method, and the corresponding glass-ceramics were obtained after heat treatment. The crystallization behavior of the glass was characterized by the DSC test. By carefully examining the structure and grain size of the NaY(MoO4)2crystals with scheelite structure using XRD and SEM, it can be confirmed that the crystal size steadily increases after increasing the crystallization temperature or extending the crystallization time, which is in the range of 27–45 nm. The transmittance of glass-ceramics somewhat declines compared to the precursor glass, although it remains high (>80 %). Under the excitation of 365 nm, the glass-ceramic shows a broad emission band, which is related to the charge transfer of Mo6+→O2-in the [MoO4]2-unit. The glass-ceramic is heat-treated at 590 °C for 3 h as the optimal heat treatment schedule, and its CIE chromaticity coordinate is located in the blue-light region, indicating the potential application of the non-rare-earth-doped self-activated light-emitting glass-ceramics containing single-phase NaY(MoO4)2in the blue light-emitting field.