光致发光
发光
材料科学
导带
辐射传输
吸收(声学)
电荷(物理)
激发
吸收边
闪烁体
光电子学
化学
兴奋剂
原子物理学
分析化学(期刊)
分子物理学
电子
带隙
光学
探测器
物理
复合材料
量子力学
色谱法
作者
Manju,Megha Jain,Pargam Vashishtha,Govind Gupta,Mukul Gupta,Parasmani Rajput,Ankush Vij,Anup Thakur
摘要
This study reports host-controlled luminescence from 4f0 and 4f 1 Ce levels in SrZnO2, probed through x-ray absorption near edge and photoluminescence spectroscopies. O K-edge perceived the presence of Ce 4f states at the bottom of conduction band and 5d states merging with conduction band. Due to such an arrangement, a fast radiative emission (11.15 ns, average) is observed through charge transfer excitation from host to empty 4f0 Ce levels. Ce content is found to vary the site occupancy, which is then modifying the population of 4f0 and 4f 1 energy states by altering Ce–O bond covalency. This study proposes the Ce-doped SrZnO2 system as a potential system for scintillators and lighting materials.
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