Excitation-dependent emission and highly efficient near-infrared luminescence in Cs2NaScCl6 double perovskite via Sb3+–Yb3+ alloying for multifunctional photoelectric applications

Mingsheng Cai; Junyang Chen; Tianchun Lang; Xiaolong Jing; Gaoxunyu Guan; Jun Wang; Qinping Qiang; Wenbo Chen; Tao Han; Bitao Liu

doi:10.1039/D4CC03863K

Excitation-dependent emission and highly efficient near-infrared luminescence in Cs₂NaScCl₆ double perovskite via Sb³⁺–Yb³⁺ alloying for multifunctional photoelectric applications†

Mingsheng Cai,‡^a Junyang Chen,‡^ab Tianchun Lang,

*^a Xiaolong Jing,^a Gaoxunyu Guan,^a Jun Wang,^a Qinping Qiang,^a Wenbo Chen,^a Tao Han

^c and Bitao Liu

*^a

Author affiliations

* Corresponding authors

^a Chongqing Key Laboratory of Materials Surface & Interface Science, Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, China
E-mail: leeltc@126.com

^b Institute of Chemistry and Macromolecular Compounds, Moscow State University M.V. Lomonosov, Moscow, Russia

^c School of Material Science and Engineering, Chongqing University of Technology, Chongqing, China

Abstract

A novel Sb³⁺–Yb³⁺ co-doped Cs₂NaScCl₆ double perovskite with multimode luminescence and efficient excitation-dependent emission is proposed. Upon Sb³⁺–Yb³⁺ co-substitution in Cs₂NaScCl₆, NIR emission at 995 nm is greatly enhanced. A new STE emission peaking at 570 nm appears. Its great potential in anti-counterfeiting, LEDs and night vision is successfully demonstrated.

Chemical Communications

Excitation-dependent emission and highly efficient near-infrared luminescence in Cs₂NaScCl₆ double perovskite via Sb³⁺–Yb³⁺ alloying for multifunctional photoelectric applications†

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Excitation-dependent emission and highly efficient near-infrared luminescence in Cs₂NaScCl₆ double perovskite via Sb³⁺–Yb³⁺ alloying for multifunctional photoelectric applications

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