Frenkel Defect-modulated Anti-thermal Quenching Luminescence in Lanthanide-doped Sc2 (WO4 )3

Yang Wei; Yue Pan; Enlong Zhou; Ze Yuan; Hao Song; Yilin Wang; Jie Zhou; Jiahui Rui; Mengjiao Xu; Lixin Ning; Zhanning Liu; Hongyu Wang; Xiaoji Xie; Xiaobin Tang; Haiquan Su; Xianran Xing; Ling Huang

doi:10.1002/anie.202303482

Frenkel Defect-modulated Anti-thermal Quenching Luminescence in Lanthanide-doped Sc₂ (WO₄ )₃

Angew Chem Int Ed Engl. 2023 Jul 3;62(27):e202303482. doi: 10.1002/anie.202303482. Epub 2023 May 23.

Authors

Yang Wei¹, Yue Pan^{1

2}, Enlong Zhou¹, Ze Yuan¹, Hao Song¹, Yilin Wang¹, Jie Zhou¹, Jiahui Rui¹, Mengjiao Xu³, Lixin Ning⁴, Zhanning Liu⁵, Hongyu Wang⁶, Xiaoji Xie¹, Xiaobin Tang⁶, Haiquan Su², Xianran Xing⁵, Ling Huang^{1

3}

Affiliations

¹ Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing, 211816, China.
² School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China.
³ State Kay Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830046, China.
⁴ Anhui Key Laboratory of Optoelectric Materials Science and Technology, Department of Physics, Anhui Normal University, Wuhu, Anhui, 241000, China.
⁵ Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid-State Chemistry, University of Science and Technology Beijing, Beijing, 100083, China.
⁶ Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China.

PMID: 37129053
DOI: 10.1002/anie.202303482

Abstract

Although large amount of effort has been invested in combating thermal quenching that severely degrades the performance of luminescent materials particularly at high temperatures, not much affirmative progress has been realized. Herein, we demonstrate that the Frenkel defect formed via controlled annealing of Sc₂ (WO₄ )₃ :Ln (Ln=Yb, Er, Eu, Tb, Sm), can work as energy reservoir and back-transfer the stored excitation energy to Ln³⁺ upon heating. Therefore, except routine anti-thermal quenching, thermally enhanced 415-fold downshifting and 405-fold upconversion luminescence are even obtained in Sc₂ (WO₄ )₃ :Yb/Er, which has set a record of both the Yb³⁺ -Er³⁺ energy transfer efficiency (>85 %) and the working temperature at 500 and 1073 K, respectively. Moreover, this design strategy is extendable to other hosts possessing Frenkel defect, and modulation of which directly determines whether enhanced or decreased luminescence can be obtained. This discovery has paved new avenues to reliable generation of high-temperature luminescence.

Keywords: Downshifting Luminescence; Energy Transfer; Frenkel Defect; Thermal Quenching; Upconversion Luminescence.

Abstract

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