高温高压合成的SrSiO3:Eu3+Bi3+的结构及其对发光特性的影响

刘宏建; 王一峰; 杨景海; 李莉萍; 苏文辉; 关中素; 于宝贵

doi:10.11858/gywlxb.1990.04.008

高温高压合成的SrSiO3:Eu3+Bi3+的结构及其对发光特性的影响

doi: 10.11858/gywlxb.1990.04.008

1.
吉林大学物理系，吉林长春 130023；
2.
中国高等科学技术中心（世界实验室），凝聚态和辐射物理分中心，北京 100080；
3.
中国科学院长春物理研究所，吉林长春 130021

详细信息

通讯作者:
刘宏建

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出版历程
- 收稿日期: 1990-05-30
- 修回日期: 1990-05-30
- 刊出日期: 1990-12-05

The Structure and Luminescence Characters of SrSiO3:Eu3+Bi3+ Synthesized by High Pressure and High Temperature

1.
Department of Physics, Jilin University, Changchun 130023, China;
2.
Center for Condensed Matter and Radiation Physics, CCAST (World Laboratory), Beijing 100080, China;
3.
Changchun Institute of Physics, Academia Sinica, Changchun 130021, China

More Information

Corresponding author: LIU Hong-Jian

摘要

摘要: 本文首次报道在3.15 GPa、1 200 ℃高温高压条件下合成出了SrSiO3:Eu3+Bi3+发光材料，并与常压合成产物相比较，研究了高温高压合成产物的结构以及合成压力、温度对发光特性的影响。结果表明，高压合成产物SrSiO3:Eu3+Bi3+的结构为膺正交（单斜）结构，而常压合成的为六角结构，高压使发光强度下降，量子发光效率下降了88%，谱线红移达756 cm-1，半值宽度也显著增加，发光性能的改变是由于压致结构的变化引起的。
- 高温高压合成 /
- SrSiO3 /
- 结构相变 /
- 谱线红移
Abstract: The SrSiO3:Eu3+Bi3+ samples were firstly synthesized by high-pressure (HP) and high-temperature (HT) method under 3.15 GPa and 1 200 ℃. Comparing with those prepared under atmosphere pressure, the structure of the samples and the influence of pressure and temperature on the luminescence properties has been studied. It shows that the structure of the samples synthesized by HP and HT is of monoclinic, while the samples prepared under atmosphere pressure is of hexagonal. At the same time, for the samples synthesized by HP and HT the intensity and quantum luminescence efficiency decreased obviously, the half-width was broadened and the red shift of emission peak was enlarged to 756 cm-1. The variation of the luminescence characters is due to the pressure-induced changes of crystal field interactions.
- high-temperature and high-pressure synthesis /
- SrSiO3 /
- structural transition /
- red shift of emission peak