光致发光
结晶度
材料科学
钛酸锶
荧光粉
退火(玻璃)
兴奋剂
化学工程
钛酸酯
锶
热分解法
离子
形态学(生物学)
粒径
矿物学
纳米技术
陶瓷
化学
薄膜
复合材料
有机化学
光电子学
工程类
生物
遗传学
作者
I. Wuled Lenggoro,Camellia Panatarani,Kikuo Okuyama
标识
DOI:10.1016/j.mseb.2004.06.020
摘要
Particles of a red phosphor, Pr3+, Al3+-doped strontium titanate (SrTiO3:Pr3+, Al3+), were successfully synthesized by one-step spray pyrolysis. Submicron-sized particles with high crystallinity and high photoluminescence (PL) emission intensity were easily obtainable without post-annealing treatment. The effects of synthesis temperature and the composition and concentration of starting precursor on the physical properties of particles, such as crystallinity and PL, were investigated. An attractive evolution of particle morphology can be created by additional Al3+ ions in the precursor. PL intensity of phosphor particles was dependent on the concentration and composition of the precursor and improved with increasing synthesis temperature up to 1550 °C. The effect of the addition of LiNO3 as a flux in the precursor on the photoluminescence properties of the product is also discussed.
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