荧光粉
发光
宽带
材料科学
晶体结构
光电子学
光谱特性
光致发光
化学
光学
结晶学
物理
计算化学
作者
Jie Shen,Zhiming Yuan,Yuan Wang,Dong Liang,Xi Li,Min Zeng,Yongming Hu,Haoshuang Gu,Yuebin Li,Gen Li
标识
DOI:10.1016/j.jlumin.2024.120506
摘要
In this paper, NaBa3Si2O7F: Bi3+ phosphor was synthesized by solid phase method, and its first-principles calculations, crystal structure and luminescence properties were investigated. First-principles calculations showed that NaBa3Si2O7F is a direct bandgap fluorosilicate. The X-ray powder diffraction (XRD) spectra of the prepared phosphors were synchronized with the referenced data. The morphology of the prepared phosphors was analyzed by transmission electron microscope (TEM) and high-resolution transmission electron microscope (HRTEM). The excitation and emission spectra showed that in NaBa3Si2O7F: 7%Bi3+ single-phase phosphor, the multi-site occupancy of Bi3+ in the phosphor can realize the ultra-broadband full-visible-spectral emission from 300 to 800 nm, with the full width at the half maximum (FWHM) = 428 nm. All these results indicate that NaBa3Si2O7F: Bi3+ phosphor is a promising ultra-broadband full-visible-spectral emission luminescence phosphor.
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