Multi-stimuli-responsive luminescence enabled by crown ether anchored chiral antimony halide phosphors.
Xiao HanPuxin ChengShanshan HanZhihua WangJunjie GuanWenqing HanRongchao ShiSonghua ChenYongshen ZhengJialiang XuXian-He BuPublished in: Chemical science (2024)
Stimuli-responsive optical materials have provided a powerful impetus for the development of intelligent optoelectronic devices. The family of organic-inorganic hybrid metal halides, distinguished by their structural diversity, presents a prospective platform for the advancement of stimuli-responsive optical materials. Here, we have employed a crown ether to anchor the A-site cation of a chiral antimony halide, enabling convenient control and modulation of its photophysical properties. The chirality-dependent asymmetric lattice distortion of inorganic skeletons assisted by a crown ether promotes the formation of self-trapped excitons (STEs), leading to a high photoluminescence quantum yield of over 85%, concomitant with the effective circularly polarized luminescence. The antimony halide enantiomers showcase highly sensitive stimuli-responsive luminescent behaviours towards excitation wavelength and temperature simultaneously, exhibiting a versatile reversible colour switching capability from blue to white and further to orange. In situ temperature-dependent luminescence spectra, time-resolved luminescence spectra and theoretical calculations reveal that the multi-stimuli-responsive luminescent behaviours stem from distinct STEs within zero-dimensional lattices. By virtue of the inherent flexibility and adaptability, these chiral antimony chlorides have promising prospects for future applications in cutting-edge fields such as multifunctional illumination technologies and intelligent sensing devices.
Keyphrases
- energy transfer
- quantum dots
- cancer therapy
- light emitting
- ionic liquid
- drug delivery
- capillary electrophoresis
- density functional theory
- perovskite solar cells
- high resolution
- sensitive detection
- molecular dynamics
- genome wide
- high throughput
- water soluble
- high speed
- dna methylation
- metal organic framework
- label free
- liquid chromatography