光致发光
激子
铁磁性
兴奋剂
卤化物
钙钛矿(结构)
量子产额
凝聚态物理
材料科学
极化子
金属
磁性半导体
物理
无机化学
结晶学
化学
光电子学
光学
电子
荧光
量子力学
冶金
作者
Shuaigang Ge,Qilin Wei,Wenyong Jia,Yi Liang,Chengyu Peng,Ye Tian,Bingsuo Zou
摘要
All-inorganic metal halide perovskite semiconductor materials have a wide range of potential applications for their excellent optoelectronic properties. Among those metal halides studied, cesium cadmium chloride has not been fully studied. Here, we report the simple synthesis and optical properties of Fe3+ doped CsCdCl3 perovskite powder by the hydrothermal technique; the products give a strong yellow photoluminescence quantum yield up to 63.22%. The powder x-ray diffraction pattern shows that the Fe3+ introduction does not change the hexagonal structure of the host lattice, magnetic characterization indicated direct Fe–Fe ferromagnetic coupling, and the photoluminescence enhancement is due to the overlapping of the self-trapped state and the d–d transition of the ferromagnetic Fe3+ pair, i.e., magnetic polarons.
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