ABSTRACT The organic Eu3+-complex [Eu(TTA)3Phen] has been incorporated into the channels of surface-modified frustules from diatoms as a key material to absorb and convert UV-photons to visible luminescence. Systematic investigation results indicate that the organic Eu3+-complex encapsulated in the functionalized diatomite channels exhibits enhanced luminescence and longer lifetime, owning to the Eu(TTA)3Phen complex interacting with its surrounding silylating agents. The organic Eu3+-complex-anchored porous diatomite hybrid luminescent material was compounded with polyethylene terephthalate (PET) by using a mini-twin screw extruder to prepare a self-supporting film of the hybrid material. Besides, the UV absorption properties of the composite films were investigated. These films will potentially be related to the UV protection of photovoltaic devices.

中文翻译：

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有机 E​​u3+-复合锚定多孔硅藻土通道在混合材料中实现紫外线保护和下转换

摘要 有机 Eu3+ 复合物 [Eu(TTA)3Phen] 已被纳入硅藻表面改性硅藻壳的通道中，作为吸收紫外光子并将其转化为可见光的关键材料。系统研究结果表明，由于 Eu(TTA)3Phen 配合物与其周围的甲硅烷基化剂相互作用，封装在功能化硅藻土通道中的有机 Eu3+ 配合物表现出增强的发光和更长的寿命。采用微型双螺杆挤出机将有机Eu3+-复合锚定多孔硅藻土杂化发光材料与聚对苯二甲酸乙二醇酯(PET)复合制备杂化材料的自支撑薄膜。此外，还研究了复合薄膜的紫外吸收性能。