Sr2CeO4荧光材料的合成与发光机理研究进展  

Synthesis of Fluorescent Materials Sr_2CeO_4 and Its Luminescence Mechanism

作　　者：樊国栋[1] 赵琪[1] 鲁玲 陈华[1] 李阿峰[1] 

机构地区：[1]陕西科技大学化学与化工学院教育部轻化工助剂化学与技术重点实验室,西安710021 [2]长庆油田超低渗透油藏研究中心.西安710018

出　　处：《科技导报》2013年第3期75-79,共5页Science & Technology Review

基　　金：陕西省科技攻关项目(2008K07-32);陕西科技大学研究生创新基金

摘　　要：Sr2CeO4具有新型独特的一维链状结构,它不仅可作为蓝色荧光材料,而且还是良好的基质材料。由于其性能优异,同时又适合稀土掺杂的基质材料,被人们誉为第二代长余辉发光材料,是发光材料的发展方向之一,所以Sr2CeO4的研究引起了人们的广泛关注。本文主要介绍了评价发光材料性能优劣的一些指标,Sr2CeO4荧光体的结构、发光的原因机理以及影响发光的一些因素。介绍了发光材料的常见合成方法:燃烧法、高温固相法、微波法、化学共沉淀法、溶胶-凝胶法等,并指出了各种合成方法优点和需解决的问题,提出了解决问题的设想。此外还介绍了发光材料的表征手段,及稀土掺杂的Sr2CeO4的发展状况,并提出了今后研究的设想。Sr2CeO4, with its new unique one dimensional chain structure, can not only be used as a blue fluorescent material, but also serve as a good matrix material. Sr2CeO4 was much studied as one of the development direction of light-emitting materials due to its excellent performance, and as a rare earth doped matrix material, hailed as the second generation of long-lasting light-emitting materials. This paper reviews some evaluation indicators of luminescence properties, the mechanism of luminescence and the influencing factors on the luminescence. Synthetic methods of samples such as the combustion method, the high-temperature solid-phase method, the microwave method, the chemical co-precipitation method, and the sol-gel method are discussed with their advantages and the existing problems. Meanwhile, some ideas about solving the problems are put forward. The characterization of the light-emitting materials and the development of rare-earth-doped Sr2CeO4 in the context of the future research are also addressed.

关 键 词：Sr2CeO4荧光体 一维结构 合成方法 稀土 发光机理 

分 类 号：O482.31[理学—固体物理] O614.3[理学—物理]