Citation: Hua Tong, Haibo Li, Wei Liu, Gangfeng Ouyang. Lead-free organic antimony halide with dual-band intrinsic white light emission for warm WLED directly[J]. Chinese Journal of Structural Chemistry, ;2025, 44(10): 100678. doi: 10.1016/j.cjsc.2025.100678 shu

Lead-free organic antimony halide with dual-band intrinsic white light emission for warm WLED directly

Organic metal halides with white-light emissions have shown significant application prospects in the fields of solid-state lighting and displays, but their structural design and synthesis remain a major challenge. Here, the material design concept of functional units has been applied to prepare a zero-dimensional (0D) organic antimony halide (1-BMP)5(SbCl5)2SbCl4 with two luminescent centers from the inorganic units and the organic units, emitting red emission about 670 nm and cyan emission about 508 nm respectively, combined to form white light. Based on the photoluminescence (PL), the time-resolved PL analysis and density functional theory (DFT) calculation, it is shown that the red and cyan emission comes from STEs related to inorganic units [SbCl5]2– and the fluorescence of organic cations 1-BMP+, respectively. This work provides new methods and ideas for the development of low-cost and eco-friendly white emission phosphors for single-component solid-state WLEDs.
- Organic antimony halides,
- White light emission,
- Self-trapped excitons (STEs),
- WLED
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