Self-Trapped Exciton Emission with High Thermal Stability in Antimony-Doped Hybrid Manganese Chloride

Li, Chen1,2; Luo, Zhishan1,2; Liu, Yulian1,2; Wei, Yi1,2; He, Xin1,2; Chen, Zhongwei1,2; Zhang, Liming1,2; Chen, Yulin1,2; Wang, Wei1,2; Liu, Yejing1,2; Chang, Xiaoyong1,2; Quan, Zewei1,2

2022-04-01

10.1002/adom.202102746

Advanced Optical Materials   影响因子和分区

2195-1071

Self-trapped exciton (STE) emission in some metal halides has acquired great interest in recent years due to their broadband emission, large Stokes shift, and high photoluminescence quantum yield (PLQY). However, severe thermal quenching of STE emission is still a critical bottleneck that impedes their application in light-emitting field. Herein, a novel zero-dimensional hybrid metal halide, Sb3+-doped (BTPP)(2)MnCl4 (BTPP = Benzyltriphenylphosphonium), is accordingly synthesized to address this issue. This compound exhibits excitation-dependent dual emissions including STE emission of antimony chloride tetrahedron and T-4(1)-(6)A(1) transition of Mn2+ ions, resulting in a tunable emission color from green to orange. More importantly, the PL intensity of STE emission at 420 K in (BTPP)(2)MnCl4:2.0%Sb can maintain 72.5% of its ambient value, which is superior to current organic-inorganic hybrid metal halides. Temperature-dependent and time-resolved spectroscopy results suggest that the high thermal stability of STE emission originates from the efficient energy transfer from (BTPP)(2)MnCl4 host to antimony chloride tetrahedron, which promotes the formation of STEs. The white light-emitting diode based on this (BTPP)(2)MnCl4:2.0%Sb phosphor exhibits high-performance warm white light with a correlated color temperature of 4827 K and a color rendering index of 88.7, which demonstrates its potential in solid-state lighting applications.

dual emissions energy transfer self-trapped excitons thermal stability zero-dimensional hybrid metal halides

SCI ; EI

英语

第一 ; 通讯

Science and Technology Cooperation Project between the Chinese and Australian Governments[2017YFE0132300] ; National Natural Science Foundation of China (NSFC)[52072166] ; Guangdong Science and Technology Department["2016ZT06C279","2019A1515110523"] ; Shenzhen Science and Technology Innovation Committee[RCJC20210609104441068] ; China Postdoctoral Science Foundation[2020M682765]

Materials Science ; Optics

Materials Science, Multidisciplinary ; Optics

WOS:000779278400001

WILEY-V C H VERLAG GMBH

20221511939430

Antimony compounds ; Chlorine compounds ; Color ; Energy transfer ; Excitons ; Geometry ; Light emission ; Metal halides ; Metals ; Thermodynamic stability

Thermodynamics:641.1 ; Light/Optics:741.1 ; Chemical Products Generally:804 ; Mathematics:921

Web of Science

1.Southern Univ Sci & Technol SUSTech, Dept Chem, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol SUSTech, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China

Li, Chen,Luo, Zhishan,Liu, Yulian,et al. Self-Trapped Exciton Emission with High Thermal Stability in Antimony-Doped Hybrid Manganese Chloride[J]. Advanced Optical Materials,2022,10.

Li, Chen.,Luo, Zhishan.,Liu, Yulian.,Wei, Yi.,He, Xin.,...&Quan, Zewei.(2022).Self-Trapped Exciton Emission with High Thermal Stability in Antimony-Doped Hybrid Manganese Chloride.Advanced Optical Materials,10.

Li, Chen,et al."Self-Trapped Exciton Emission with High Thermal Stability in Antimony-Doped Hybrid Manganese Chloride".Advanced Optical Materials 10(2022).