| Abstract: | PbGeO3 nanostructures including nanofibers and nanobelts, have been synthesized via a facile hydrothermal method by the reaction between GeO2 and Pb(CH3COO)2·3H2O in the absence of any surfactant. The influences of synthetic parameters, such as reaction time, reaction temperature, and the concentration of ethylenediamine, on the morphologies and sizes of PbGeO3 nanostructures have been investigated. It is found that an evolution of PbGeO3 nanostructures from nanobelts to nanofibers is observed for the first time with the reaction time increased from 1 h to 6 h. The diameters of PbGeO3 nanofibers can be controled from 300–900 nm to 80–120 nm by adjusting the concentration of ethylenediamine. Under similar conditions, PbGeO3: Eu3+ nanofibers with rough surfaces can also be obtained. The photoluminescent spectra of PbGeO3: Eu3+ nanofibers exhibits two fluorescence emission peaks centered at around 591 and 614 nm as the excitation wavelength is 395 nm. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
