Yordanova Aneliya, Aleksandrov Lyubomir, Milanova Margarita, Iordanova Reni, Petrova Petia, Nedyalkov Nikolay
Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, G. Bonchev, Str., bld. 11, 1113 Sofia, Bulgaria.
Institute of Optical Materials and Technologies "Acad. Jordan Malinowski", Bulgarian Academy of Sciences, Blvd. Akad. G. Bonchev 109, 1113 Sofia, Bulgaria.
Molecules. 2024 May 24;29(11):2470. doi: 10.3390/molecules29112470.
Glasses with the compositions in mol % of 50ZnO:(50 - x)BO:0.5EuO:xWO, x = 0, 1, 3, 5 and 10 were obtained by applying the melt-quenching method and investigated by Raman spectroscopy, DSC analysis and photoluminescence (PL) spectroscopy. Raman spectra revealed that tungstate ions incorporate into the base zinc borate glass as tetrahedral [WO] groups, and octahedral [WØO] species with four bridging and two non-bridging oxygen atoms. There are also metaborate, [BØO] and pyroborate units, [BO], in the glass networks. The glasses are characterized by good transmission in the visible region, at about 80%. Photoluminescence (PL) spectra evidenced that WO is an appropriate constituent for the modification of zinc borate glass structure and for enhancing the Eu luminescent intensity. The most intense luminescence peak observed, at 612 nm, suggests that the glasses are potential materials for red emission.
通过熔融淬火法制备了摩尔百分比组成为50ZnO:(50 - x)BO:0.5EuO:xWO（x = 0、1、3、5和10）的玻璃，并通过拉曼光谱、差示扫描量热法（DSC）分析和光致发光（PL）光谱对其进行了研究。拉曼光谱表明，钨酸根离子以四面体[WO]基团和具有四个桥连氧原子和两个非桥连氧原子的八面体[WØO]物种的形式掺入碱式硼酸锌玻璃中。玻璃网络中还存在偏硼酸根[BØO]和焦硼酸根单元[BO]。这些玻璃的特点是在可见光区域具有良好的透过率，约为80%。光致发光（PL）光谱证明，WO是用于修饰硼酸锌玻璃结构和增强Eu发光强度的合适成分。观察到的最强发光峰位于612 nm，表明这些玻璃是用于红色发射的潜在材料。
