โ Scribed by Ning Wang; Jie Ding; Guicun Li; Hongrui Peng
No coin nor oath required. For personal study only.
PbGeO 3 nanostructures including nanofibers and nanobelts, have been synthesized via a facile hydrothermal method by the reaction between GeO 2 and Pb(CH 3 COO) 2 โข3H 2 O 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 PbGeO 3 nanostructures have been investigated. It is found that an evolution of PbGeO 3 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 PbGeO 3 nanofibers can be controled from 300-900 nm to 80-120 nm by adjusting the concentration of ethylenediamine. Under similar conditions, PbGeO 3 :Eu 3+ nanofibers with rough surfaces can also be obtained. The photoluminescent spectra of PbGeO 3 :Eu 3+ nanofibers exhibits two fluorescence emission peaks centered at around 591 and 614 nm as the excitation wavelength is 395 nm.
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