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Synthesis and properties of PbGeO 3 nanostructures
Author(s) -
Wang Ning,
Ding Jie,
Li Guicun,
Peng Hongrui
Publication year - 2010
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200900516
Subject(s) - ethylenediamine , nanofiber , nanostructure , photoluminescence , hydrothermal circulation , materials science , excitation wavelength , chemical engineering , nanotechnology , fluorescence , nanomaterials , analytical chemistry (journal) , chemistry , wavelength , inorganic chemistry , optoelectronics , organic chemistry , optics , physics , engineering
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 ·3H 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. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)