TITLE:
Electrospinning Synthesis and Photoluminescence Properties of One-Dimensional SiO2:Tb3+ Nanofibers and Nanobelts
AUTHORS:
Murad M. A. Abualrejal, Haifeng Zou, Jie Chen, Yanhua Song, Ye Sheng
KEYWORDS:
Silica, Electrospinning, Photoluminescence, Terbium Doped-Silica
JOURNAL NAME:
Advances in Nanoparticles,
Vol.6 No.2,
April
7,
2017
ABSTRACT: Controlled synthesis of functional photoluminescent materials
is of particular interest due to their fascinating optical properties. Herein,
highly uniform one-dimensional (1D) SiO2:xTb3+ nanofibers
and nanobelts are fabricated by electrospinning method combined with sol-gel
method. The as-prepared SiO2:xTb3+ nanofibers are
belt-like morphology after calcination. The formation mechanism of SiO2:xTb3+ nanofibers and nanobelts is proposed based on decomposition of polyvinylpyrrolidone
(PVP) and crystallization of SiO2. The photoluminescence (PL)
intensity of SiO2:xTb3+ nanofibers and nanobelts is Tb3+ ions concentration dependent with a maximum at 4 mol% of Tb3+. Particularly,
SiO2:xTb3+ nanofibers and nanobelts exhibit a green
emission corresponding to 5D4 → 7Fj transition (541 nm) of Tb3+.