Luminescence of novel terbium complex/inorganic/polymeric hybrid materials based on sol-gel technology

作者：Zhao, Li-Min^*; Shao, Xin; Yin, Yi-Bin; Li, Wen-Zhi

来源：Materials Science and Engineering B-Solid State Materials for Advanced Technology, 2012, 177(2): 257-262.

DOI：10.1016/j.mseb.2011.12.021

• Molecular hybrids
• Rare-earth complex
• 4-Nitrobenzoic acid
• Luminescence
• Polyvinyl alcohol

In this paper, a new terbium complex/inorganic/polymeric molecular hybrid material was prepared and its optical properties were studied. At first, 4-nitrobenzoic acid was modified by (3-aminopropyl) trimethoxysilane to form a precursor and coordinated with terbium ion. Then it was polymerized with inorganic host tetraethoxysilane or polymer host polyvinyl alcohol and formed hybrid material. H-1 NMR Fourier transform infrared (FT-IR), scanning electron microscope and TGA were applied to characterize the structure of the precursor. UV-vis spectrophotometer and fluorescence spectra were applied to characterize the photophysical properties of the obtained hybrid material. The strong luminescence of Tb3+. substantiates optimum energy couple and effective intramolecular energy transfer between the triplet state energy of modified ligand bridge and emissive energy level of Tb3+.

• 出版日期2012-2-15
• 单位聊城大学