Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 113, Issue 22, Pages 9609-9615Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp900916j
Keywords
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Funding
- High-Tech Research and Development Program of China (863) [2007AA03Z314]
- National Natural Science Foundation of China [50772042, 10704073]
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In this paper, europium lanthanum phosphate nanowires and nanotubes were fabricated by the electrospinning method for the first time. By changing the ratio of PVP to the inorganic precursors, ultralong, uniform, and size-controllable nanowires/nanotubes were obtained, ranging of 60 to 300 nm. The average wall thicknesses of the nanotubes were similar to 20 nm. The structure properties were characterized systematically by FE-SEM, TEM, XRD, FTIR, and ESR techniques. The results indicate that as the ratio of PVP to the inorganic decreased, a phase transition from LaPO4 to La3PO4 gradually occurred and the formation mechanism was proposed. The studies on photoluminescence indicated that the emission intensity, lifetime, and intensity ratio of D-5(0)-F-7(2) to D-5(0)-F-7(1), all depended strongly on the structure of the electrospinnig products. This work is important for both the synthesis of novel one-dimensional nanophosphors and understanding of their unique physical properties.
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