摘要
采用溶胶-凝胶法,通过选择合适的助熔剂、调整助熔剂添加比例等手段,制备了发光强度高、颗粒形貌良好的Zn2SiO4:Mn绿色荧光粉。结果表明:选择H3BO3作为助熔剂,经800℃预烧2h,900℃煅烧4h的二次煅烧,样品中形成了α-Zn2SiO4相,有效地控制了颗粒的形貌,并改善了发光性能。通过改变H3BO3的加入量,可控制颗粒形状和大小。光致发光测试表明:添加H3BO3作为助熔剂对Zn2SiO4:Mn的光谱未产生不利的影响,但添加助熔剂样品的发光强度较未添加助熔剂样品有很大的提高,且添加助熔剂样品的发光强度与商用荧光粉相当。
Zn2SiO4：Mn green phosphor was synthesized by the sol-gel method. Phosphors with high emission intensity and good morphology were obtained by selecting the flux and adjusting the usage of flux. It was found that using H3BO3 as a flux, the samples calcined at 800 ℃ for 2 h and then at 900℃ for 4 h have high purity α-Zn2SiO4 phase forming. Both the particle morphology and luminescent intensity are improved by adjusting the dosage of the H3BO3 flux. The luminescent intensity of the prepared Zn2SiO4：Mn sample is similar to that of commercial products.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2008年第11期1660-1663,共4页
Journal of The Chinese Ceramic Society
基金
陕西省科技攻关(2005K06–G18)
陕西省自然科学基金(2004B31)资助项目
