Hydrothermal synthesis of GdBO3:Eu3+ nanofibres

Abstract: Large-scale GdBO3:Eu3+ nanofibres with uniform diameter were controllably synthesized by a glycine-assisted hydrothermal method at 170°C using Gd(NO3)3, Eu(NO3)3 and Na2B4O7·10H2O as the precursors. X-ray diffraction (XRD) results show that the luminescent nanofibres are pure hexagonal structure and no other impurity phase appeared. Transmission electron microscopy (TEM) studies indicate that GdBO3:Eu3+ has a nanofibre structure. Photoluminescence (PL) spectra results demonstrate that the GdBO3:Eu3+ nanofibres have three strong 5D0 → 7F1 (595nm) and 5D0 → 7F2 (613 and 627nm) transition peaks corresponding to orange-red and red colors, respectively. [ABSTRACT FROM AUTHOR]