Ni2+ and Pr3+ Co-doped CsPbCl3 perovskite quantum dots with efficient infrared emission at 1300 nm

Jiekai Lyu; Biao Dong; Gencai Pan; Liheng Sun; Xue Bai; Songtao Hu; Bo Shen; Bingshuai Zhou; Lin Wang; Wen Xu; Donglei Zhou; Lin Xu; Hongwei Song

doi:10.1039/D1NR04455A

Ni²⁺ and Pr³⁺ Co-doped CsPbCl₃ perovskite quantum dots with efficient infrared emission at 1300 nm†

Jiekai Lyu,^a Biao Dong,

*^a Gencai Pan,

^b Liheng Sun,^a Xue Bai,

^a Songtao Hu,^a Bo Shen,^a Bingshuai Zhou,^a Lin Wang,

^cd Wen Xu,^a Donglei Zhou,

^a Lin Xu^a and Hongwei Song

*^a

Author affiliations

* Corresponding authors

^a State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
E-mail: dongb@jlu.edu.cn, songhw@jlu.edu.cn

^b International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, No. 1 Jinming Street, Kaifeng 475004, China

^c Department of Oral Implantology, School of Dentistry, Jilin University, Changchun 130021, China

^d Jilin Provincial Key Laboratory of Sciences and Technology for Stomatology Nanoengineering, Changchun 130021, China

Abstract

Lead halide perovskite quantum dots (PQDs) show great prospects in the field of optoelectronic applications. Although having high efficiency and narrow-band emission performance in the visible light region, the infrared multicolor luminescence performance of perovskite nanocrystals is still highly desired. In this work, in order to increase the luminescence intensity and extend the infrared multicolor luminescence, transition metal and rare earth ions are co-doped into PQDs. Herein, PQDs emitting at 1300 nm are realized by Pr³⁺ doping, which has not been reported in previous literature. The luminescence and kinetic process of Ni²⁺ and Pr³⁺ co-doped CsPbCl₃ PQDs are studied, which exhibit considerably enhanced emission intensity at 400 nm and 1300 nm, with an overall quantum efficiency of photoluminescence (PLQY) of 89% and the highest infrared PLQY of 23%.

Nanoscale

Ni²⁺ and Pr³⁺ Co-doped CsPbCl₃ perovskite quantum dots with efficient infrared emission at 1300 nm†

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Ni²⁺ and Pr³⁺ Co-doped CsPbCl₃ perovskite quantum dots with efficient infrared emission at 1300 nm

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