夜视成像用Cs2NaYCl6∶Sb,Ln荧光粉宽带近红外发光性能OA北大核心CSTPCD
Broadband Near-infrared Luminescence Performance of Cs2 NaYCl6∶Sb,Ln Phosphors for Night Vision Imaging Systems
采用水热法成功制备了Sb3+/Ln3+(Ln=Nd,Ho,Er,Tm)共掺的Cs2NaYCl6 无铅双钙钛矿材料.通过X射线衍射、扫描电子显微镜等表征手段对其结构和形貌进行了研究;通过激发、发射光谱和荧光衰减曲线的测量,讨论了其发光性能及能量传递机理.实验结果表明,在紫外光激发下,对于Cs2NaYCl6基质材料,在掺杂微量Sb3+后,能够产生宽带自陷激子(STEs)发光.在其中进一步掺杂三价稀土离子,在320 nm激发下,发射光谱中可观察到稀土离…查看全部>>
Cs2NaYCl6 lead-free double perovskite materials doped with Sb3+/Ln3+(Ln=Nd,Ho,Er,Tm)were suc-cessfully prepared by hydrothermal method.The structure and morphologies were studied through X-ray diffraction and scanning electron microscopy.By measuring the photoluminescence spectra,photoluminescence excitation spec-tra,and fluorescence decay curves,the luminescence and energy transfer mechanisms were discussed.The experi-mental results show that under UV excit…查看全部>>
刘博;徐赛;常江龙;李由;陈宝玖
大连海事大学 理学院,辽宁 大连 116026大连海事大学 理学院,辽宁 大连 116026大连海事大学 理学院,辽宁 大连 116026大连海事大学 理学院,辽宁 大连 116026大连海事大学 理学院,辽宁 大连 116026
物理学
双钙钛矿稀土离子掺杂能量传递近红外LED
double perovskitesrare earth ions dopingenergy transfernear-infrared LED
《发光学报》 2024 (7)
1095-1103,9
国家自然科学基金(52071048,52001047) Supported by National Natural Science Foundation of China(52071048,52001047)
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