1 research outputs found
Doping Lanthanide into Perovskite Nanocrystals: Highly Improved and Expanded Optical Properties
Cesium lead halide
(CsPbX<sub>3</sub>) 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 (Ce<sup>3+</sup>,
Sm<sup>3+</sup>, Eu<sup>3+</sup>, Tb<sup>3+</sup>, Dy<sup>3+</sup>, Er<sup>3+</sup>, and Yb<sup>3+</sup>) into the lattices of CsPbCl<sub>3</sub> 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