Judd–Ofelt analysis of Nd3+ ions in poly(styrene sulfonate) films

In this work, we present the synthetic route and the optical characterization of poly(styrene sulfonate) (PSS) films doped with Neodymium ions (Nd3+). In the synthesis optimization we obtained the maximum incorporation of Nd3+ in the matrix about 14.0%. The UV–Vis–NIR curve presents an intense characteristic electronic transition 4I9/2 → 4F5/2 + 2H9/2 at 800 nm. It was also shown the radiative transition 4F3/2 → 4I11/2 at about 1060 nm. Judd–Ofelt theory was used in order to obtain the near infrared Nd3+ radiative transition rate, emission cross-section and radiative lifetime.