Excitation-mode-selective emission in double perovskite crystals
Author Information
Author(s): Hao Suo, Nan Wang, Yu Zhang, Xin Zhang, Jinmeng Xiang, Xiaojia Wang, Guansheng Xing, Dongxu Guo, Jiwen Chang, Yu Wang, Panlai Li, Zhijun Wang, Yuhai Zhang, Bing Chen, Shuzhou Li, Chongfeng Guo, Feng Wang
Primary Institution: Hebei University
Hypothesis
Can scandium-based double perovskite crystals with antimony dopants generate multiexcitonic emissions across different spectral regions?
Conclusion
The study demonstrates that low-dimensional perovskite crystals can achieve highly efficient multiexcitonic emissions, enabling applications in data encryption and authentication technologies.
Supporting Evidence
- Crystals exhibited highly efficient white photoluminescence with a quantum yield greater than 97%.
- X-ray excited blue emission showed a long afterglow lasting over 9 hours.
- Mechanoluminescence was self-reproducible and demonstrated high brightness.
Takeaway
Scientists created special crystals that can change colors when you shine different lights on them, which could help keep information safe.
Methodology
The study involved synthesizing and characterizing scandium-based double perovskite crystals doped with antimony to explore their luminescent properties under various excitation modes.
Digital Object Identifier (DOI)
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