Self-Assembled Film of Tb^(3+) and Poly(3- Thiophene Acetic Acid) via Layer-by-Layer Complexation Technique and Its Photoluminescence  

作　　者：辛颢 李富友 黄岩谊 黄春辉 

出　　处：《Journal of Rare Earths》2002年第5期333-338,共6页稀土学报（英文版）

基　　金：ProjectsopprtedbytheStateKeyProgramofFundamentalResearchonRareEarthFunctionalMaterials (G 1 9980 6 1 3 0 82 0 0 1 CCD0 43 0 0 ) ;NNSFC ( 2 0 0 2 3 0 0 5 )

摘　　要：The layer by layer complexation technique of polymer and metal ion was successfully utilized to fabricate the ultrathin multilayer film of poly(3 thiophene acetic acid (PTAA) and Tb 3+ ion by dipping the substrates alternatively in polymer and Tb 3+ ion aqueous solutions. UV-vis measurement revealed that the absorbance has linearity with the bilayer number from layer to layer and the X ray photoelectron spectrum (XPS) confirmed the existence of Tb 3+ ion. The pH of both the polymer and TbCl 3 solutions influence the thickness dramatically while the concentration of the solutions is not so sensitive. The luminescent spectrum of the complex film shows the characteristic emission of Tb 3+ ion as well as the ligand indicating the formation of the complex.The layer by layer complexation technique of polymer and metal ion was successfully utilized to fabricate the ultrathin multilayer film of poly(3 thiophene acetic acid (PTAA) and Tb 3+ ion by dipping the substrates alternatively in polymer and Tb 3+ ion aqueous solutions. UV-vis measurement revealed that the absorbance has linearity with the bilayer number from layer to layer and the X ray photoelectron spectrum (XPS) confirmed the existence of Tb 3+ ion. The pH of both the polymer and TbCl 3 solutions influence the thickness dramatically while the concentration of the solutions is not so sensitive. The luminescent spectrum of the complex film shows the characteristic emission of Tb 3+ ion as well as the ligand indicating the formation of the complex.

关 键 词：rare earths self  assembly TERBIUM COMPLEXATION layer  by  layer PHOTOLUMINESCENCE 

分 类 号：O633[理学—高分子化学]