Processing and optical characterization of poly(styrene sulphonate) films doped with neodymium

作者：Cristovan Fernando H; Eiras Sebastiao P; Cruz Welington O; Marletta Alexandre^*; Balogh Debora T; Laureto Edson; Duarte Jose L; Dias Ivan F L

来源：Quimica Nova, 2005, 28(6): 964-967.

DOI：10.1590/S0100-40422005000600006

• poly(styrene sulphonate)
• neodymium
• films

In this work we describe the processing of poly( styrene sulphonate) films (PSS) doped with neodymium (Nd). Optical density measurements in the UV-Vis-NIR region show the typical bands observed for neodymium chloride (NdCl3) in solution. In the case of films, the intensity ratio between the peaks at 800 nm (I-4(9/2) -> F-4(5/2) + H-2(7/2)) and 580 nm (I-4(9/2) -> (4)G(5/2) + (2)G(7/2)) is equal to 0.83. Infrared spectra present an enhancement in the absorption region of aromatic rings. Site selective luminescence spectroscopy shows that the incorporation of Nd introduces a hipsochromic shift and a line shape definition in UV luminescence compared to PSS film, decreasing the interaction between aromatic groups. In addition, the film exhibits an intense radiative transition at 1061 nm (F-4(3/2) -> I-4(11/2)), comparable to the one present in crystalline materials doped with Nd.

• 出版日期2005-12