期刊
NANO LETTERS
卷 17, 期 12, 页码 8005-8011出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.7b04575
关键词
Perovskite nanocrystal; lanthanide; multicolor emissions; near-infrared emissions
类别
资金
- National Natural Science Foundation of China [11674127, 11674126, 21403084]
- Jilin Province Science Fund for Excellent Young Scholars [20170520129JH, 20170101170JC]
- Major State Basic Research Development Program of China (973 Program) [2014CB643506]
- National Key Research and Development Program [2016YFC0207101]
Cesium lead halide (CsPbX3) perovskite nanocrystals (NCs) have demonstrated extremely excellent optical properties and great application potentials in various optoelectronic devices. However, because of the anion exchange, it is difficult to achieve white-light and multicolor emission for practical applications. Herein, we present the successful doping of various lanthanide ions (Ce3+, Sm3+, Eu3+, Tb3+, Dy3+, Er3+, and Yb3+) into the lattices of CsPbCl3 perovskite NCs through a modified hot-injection method. For the lanthanide ions doped perovskite NCs, high photoluminescence quantum yield (QY) and stable and widely tunable multicolor emissions spanning from visible to near-infrared (NIR) regions are successfully obtained. This work indicates that the doped perovskite NCs will inherit most of the unique optical properties of lanthanide ions and deliver them to the perovskite NC host, thus endowing the family of perovskite materials with excellent optical, electric, or magnetic properties.
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