Terbium-based coordination polymer (Tb-CP) microspheres with diameters ranging from 0.8 to 1.5 μm were prepared from Tb(NO₃)₃ and 2-nitroterephthalic acid at 160 °C for 6 h. Their composite film with polymethyl methacrylate was prepared by spin-coating method. The products were fully characterized by SEM, TEM, PXRD, TG, FT-IR, and PL. Eu³⁺-doped Tb-CP microsphere and its film were prepared and their luminescent properties were investigated. It turns out that the hetero-metal CPs only exhibits the characteristic emission peak of Eu³⁺, indicating metal-to-metal charge transfer from the Tb³⁺ to Eu³⁺ centers.

中文翻译：

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均匀的基于Tb的配位聚合物微球及其膜：合成，表征和发光性能

由Tb（NO ₃）₃和2-硝基对苯二甲酸在160°C下制备6h的diameter基配位聚合物（Tb-CP）微球，其直径为0.8至1.5μm 。通过旋涂法制备了它们与聚甲基丙烯酸甲酯的复合膜。产品通过SEM，TEM，PXRD，TG，FT-IR和PL进行了全面表征。制备了掺Eu ^3+的Tb-CP微球及其薄膜，并研究了其发光性能。事实证明，杂金属CP仅表现出Eu ³⁺的特征发射峰，表明金属间的电荷从Tb ³⁺转移到Eu ³⁺中心。