CdSe：Eu nanoparticles（NPs） were synthesized using an oil phase method and the substitution of Cd2＋with Eu3＋ was confirmed by XRD,TEM,UV-Vis absorption and fluorescence emission analyses.The CdSe：Eu NPs are monod...CdSe：Eu nanoparticles（NPs） were synthesized using an oil phase method and the substitution of Cd2＋with Eu3＋ was confirmed by XRD,TEM,UV-Vis absorption and fluorescence emission analyses.The CdSe：Eu NPs are monodispersed and uniform spherical particles with a diameter of 3.2 nm,bigger than the pure CdSe NPs（2.3 nm）,but with a similar cubic structure as CdSe NPs.Compared with those of pure CdSe NPs,both emission spectrum and absorption spectrum of CdSe：Eu NPs are red-shifted.The CdSe：Eu NPs are incorporated into poly（MMA-co-MQ） to afford poly（MMA-co-MQ）-CdSe：Eu NPs with the cubic structure and particle size（～3-4 nm） similar to those of CdSe：Eu NPs.The TEM imaging suggests that the CdSe：Eu NPs are uniformly dispersed in poly（MMA-co-MQ,） without any obvious aggregation.The fluorescent emission peak and absorption peak of poly（MMA-co-MQ）-CdSe：Eu NPs are between those of CdSe：Eu NPs and poly（MMA-co-MQ）,possibly due to the energy transfer caused by the interactions of Cd or Eu atoms on the surfaces of CdSe：Eu NPs with the N and O atoms of poly（MMA-co-MQ）.These CdSe：Eu and poly（MMA-co-MQ）-CdSe：Eu NPs with tunable photoluminescence properties can be potentially used for the fabrication of optical and optoelectronic devices.展开更多
基金Project supported by the National Natural Science Foundation of China(21364007)the Natural Science Foundation of Inner Mongolia(2016MS0201)the Program for Young Talents of Science and Technology of Baotou Teachers College
文摘CdSe：Eu nanoparticles（NPs） were synthesized using an oil phase method and the substitution of Cd2＋with Eu3＋ was confirmed by XRD,TEM,UV-Vis absorption and fluorescence emission analyses.The CdSe：Eu NPs are monodispersed and uniform spherical particles with a diameter of 3.2 nm,bigger than the pure CdSe NPs（2.3 nm）,but with a similar cubic structure as CdSe NPs.Compared with those of pure CdSe NPs,both emission spectrum and absorption spectrum of CdSe：Eu NPs are red-shifted.The CdSe：Eu NPs are incorporated into poly（MMA-co-MQ） to afford poly（MMA-co-MQ）-CdSe：Eu NPs with the cubic structure and particle size（～3-4 nm） similar to those of CdSe：Eu NPs.The TEM imaging suggests that the CdSe：Eu NPs are uniformly dispersed in poly（MMA-co-MQ,） without any obvious aggregation.The fluorescent emission peak and absorption peak of poly（MMA-co-MQ）-CdSe：Eu NPs are between those of CdSe：Eu NPs and poly（MMA-co-MQ）,possibly due to the energy transfer caused by the interactions of Cd or Eu atoms on the surfaces of CdSe：Eu NPs with the N and O atoms of poly（MMA-co-MQ）.These CdSe：Eu and poly（MMA-co-MQ）-CdSe：Eu NPs with tunable photoluminescence properties can be potentially used for the fabrication of optical and optoelectronic devices.
