激光与光电子学进展, 2019, 56 (10): 101602, 网络出版: 2019-07-04
铁系金属氯化物对全无机铅卤钙钛矿纳米晶发光性质的影响 下载: 1120次
Influence of Ferrous Metal Chloride on Photoluminescence Properties of Fully-Inorganic Lead Halide Perovskite Nanocrystals
材料 无机铅卤钙钛矿纳米晶 铁系金属氯化物 光致发光 室温液相合成 materials inorganic halide perovskite nanocrystals ferrous metal chlorides photoluminescence room temperature solution-phase synthesis
摘要
以铁系金属氯化物为氯源,用室温过饱和结晶法制备CsPbCl3纳米晶(NCs),其中氯离子与Cs
+及Pb
2+结合形成了CsPbCl3纳米晶。研究发现,铁系离子Fe
3+、Fe
2+、Co
2+和Ni
2+并没有完全猝灭所得NCs的荧光。所得NCs在365 nm紫外光激发下发出色纯度高的纯正蓝色荧光,量子效率稍高于以氯化铅为氯源所得的NCs的量子效率。
Abstract
CsPbCl3 nanocrystals (NCs) are prepared by the supersaturated recrystallization process at room temperature using ferrous metal chlorides as the chlorine sources. The Cl
- ions react with Cs
+ and Pb
2+ to form CsPbCl3 NCs. The photoluminescence of the as-obtained NCs is not completely quenched by adding Fe
3+, Fe
2+, Co
2+, and Ni
2+. However, the as-synthesized NCs emit pure blue photoluminescence excited by 365 nm ultraviolet light. Especially, the quantum efficiency is slightly higher than that of NCs using lead chloride as the chlorine source.
胡佳佩, 吴超, 翁俊旗, 王一卉, 贺香红. 铁系金属氯化物对全无机铅卤钙钛矿纳米晶发光性质的影响[J]. 激光与光电子学进展, 2019, 56(10): 101602. Jiapei Hu, Chao Wu, Junqi Weng, Yihui Wang, Xianghong He. Influence of Ferrous Metal Chloride on Photoluminescence Properties of Fully-Inorganic Lead Halide Perovskite Nanocrystals[J]. Laser & Optoelectronics Progress, 2019, 56(10): 101602.