Park JH, Kim YJ.
J Nanosci Nanotechnol. 2014 Nov;14(11):8756-61.Ca2SiO4:Eu2+ powders were prepared by the sol-gel process using calcium nitrate hydrate, europium nitrate hydrate, and tetraethyl orthosilicate (TEOS). The effects of the amount of TEOS, firing temperatures, and the Eu2+ concentration on the structural and luminescence properties were investigated. The CaO impurity phase was produced and it strongly contributed to emission properties. The prepared powders were composed of irregular-shaped particles, square plates (CaO), and/or needle-shaped particles, depending on the amount of TEOS, while with excess TEOS content (1. Read More