TY - JOUR
T1 - Excitation-mode-selective emission through multiexcitonic states in a double perovskite single crystal
AU - Suo, Hao
AU - Wang, Nan
AU - Zhang, Yu
AU - Zhang, Xin
AU - Xiang, Jinmeng
AU - Wang, Xiaojia
AU - Xing, Guansheng
AU - Guo, Dongxu
AU - Chang, Jiwen
AU - Wang, Yu
AU - Li, Panlai
AU - Wang, Zhijun
AU - Zhang, Yuhai
AU - Chen, Bing
AU - Li, Shuzhou
AU - Guo, Chongfeng
AU - Wang, Feng
PY - 2025
Y1 - 2025
N2 - Low-dimensional lead-free metal halide perovskites are highly attractive for cutting-edge optoelectronic applications. Herein, we report a class of scandium-based double perovskite crystals comprising antimony dopants that can generate multiexcitonic emissions in the ultraviolet, blue, and yellow spectral regions. Owing to the zero-dimensional nature of the crystal lattice that minimizes energy crosstalk, different excitonic states in the crystals can be selectively excited by ultraviolet light, X-ray irradiation, and mechanical action, enabling dynamic control of steady/transient-state spectral features by modulating the excitation modes. Remarkably, the transparent crystal exhibits highly efficient white photoluminescence (quantum yield >97%), X-ray excited blue emission with long afterglow (duration >9 h), and high-brightness self-reproducible violet-blue mechanoluminescence. These findings reveal the exceptional capability of low-dimensional perovskite crystals for integrating various excitonic luminescence, offering exciting opportunities for multi-level data encryption and all-in-one authentication technologies. © The Author(s) 2025.
AB - Low-dimensional lead-free metal halide perovskites are highly attractive for cutting-edge optoelectronic applications. Herein, we report a class of scandium-based double perovskite crystals comprising antimony dopants that can generate multiexcitonic emissions in the ultraviolet, blue, and yellow spectral regions. Owing to the zero-dimensional nature of the crystal lattice that minimizes energy crosstalk, different excitonic states in the crystals can be selectively excited by ultraviolet light, X-ray irradiation, and mechanical action, enabling dynamic control of steady/transient-state spectral features by modulating the excitation modes. Remarkably, the transparent crystal exhibits highly efficient white photoluminescence (quantum yield >97%), X-ray excited blue emission with long afterglow (duration >9 h), and high-brightness self-reproducible violet-blue mechanoluminescence. These findings reveal the exceptional capability of low-dimensional perovskite crystals for integrating various excitonic luminescence, offering exciting opportunities for multi-level data encryption and all-in-one authentication technologies. © The Author(s) 2025.
UR - http://www.scopus.com/inward/record.url?scp=85213802018&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85213802018&origin=recordpage
U2 - 10.1038/s41377-024-01689-7
DO - 10.1038/s41377-024-01689-7
M3 - RGC 21 - Publication in refereed journal
C2 - 39743638
SN - 2095-5545
VL - 14
JO - Light: Science and Applications
JF - Light: Science and Applications
M1 - 21
ER -