Synthesis and postsynthetic anion exchange of CsPbX3 (X = Cl, Br, I) quantum dots

被引：2
|
作者：
Percova, A. [1 ]
Matyushkin, L. B. [1 ]
机构：
[1] St Petersburg Electrotech Univ LETI, Dept Micro & Nanoelect, St Petersburg 197376, Russia
来源：
4TH INTERNATIONAL SCHOOL AND CONFERENCE ON OPTOELECTRONICS, PHOTONICS, ENGINEERING AND NANOSTRUCTURES (SAINT PETERSBURG OPEN 2017) | 2017年 / 917卷
关键词：
NANOCRYSTALS;
D O I：
10.1088/1742-6596/917/6/062041
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
CsPbX3 (X = Cl, Br, I) quantum dots were synthesized using hot-injection method at various temperatures (50-200 degrees C), resulting in quantum dots size change and corresponding photoluminescence shift. During anion exchange, continuous formation of intermediate solid solutions was observed resulting in fine adjustment of photoluminescence peak position. Dynamics of photoluminescence spectra under continuous laser irradiation for anion exchange was studied. It is necessary for anion exchange that halide should be in ionic, not molecular, form.
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页数：4
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