Erbium-Complex-Doped Near-Infrared Luminescent and Magnetic Macroporous Materials

A near‐infrared luminescent macroporous material (PL–Macromaterial) and a near‐infrared luminescent/magnetic bifunctional macroporous material (M/PL–Macromaterial) were synthesized by using polystyrene microspheres(PS) and Fe3O4@polystyrene core–shell nanoparticles (Fe3O4@PS), respectively, as templates. Both the PL–Macromaterial and the M/PL–Macromaterial show the characteristic emission of the Er3+ ion. Moreover, the M/PL–Macromaterial possesses superparamagnetic properties at roomtemperature. The photoluminescence, magnetism, and macroporous morphologies of the macroporous materals were investigated. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009) A near‐infrared luminescent macroporous material and a near‐infrared luminescent/magnetic bifunctional macroporous material, which may offer the opportunity to develop new materials suitable for optical amplifiers, were synthesized by using polystyrene microspheres and Fe3O4@polystyrene core–shell nanoparticles, respectively, as templates.