1. Optical Property Regulation through Host–Guest Interaction in a Zero-Dimensional Zr Chloride
- Author
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Lin, Jia-Wei, Lu, Xuexia, Liu, Zhen, Lin, Yang-Peng, Yang, Jieru, Ge, Yanan, Zhou, Chun, Wang, Xingzhi, Li, Jin-Rong, Du, Ke-Zhao, Tang, Fei, and Huang, Xiao-Ying
- Abstract
Halide perovskites, particularly zero-dimensional (0D) A2BX6-type structures, have garnered significant attention in diverse fields due to their exceptional photoelectric properties. This study focuses on the optical property regulation of 0D A2ZrCl6through nonprotonated cation substitution (A = [(CH3)3SO]+and [(CH3)4N]+) combined with different guest ions (i.e., Sb3+, Bi3+, and Mn2+). The varied host–guest interaction is regarded as the reason for the different luminescent behaviors. The Sb3+dopant has a weaker interaction with the host [(CH3)3SO]2ZrCl6than Mn2+does. As a result, Sb3+@[(CH3)3SO]2ZrCl6shows an excitation-dependent photoluminescence ranging from blue to orange, while Mn2+@[(CH3)3SO]2ZrCl6exhibits only Mn2+dopant emission under different excitation wavelengths. Besides the dopant effect on the host–guest interaction, the organic cation can impact the host–guest behavior as well. [(CH3)3SO]2ZrCl6and [(CH3)4N]2ZrCl6have different preferences for dopant ions. Sb3+and Mn2+are favorable in the host [(CH3)3SO]2ZrCl6, while Sb3+and Bi3+are adopted in [(CH3)4N]2ZrCl6. Due to the varied emission colors from Sb3+and Bi3+dopants, [(CH3)4N]2ZrCl6possesses diverse photoluminescence behaviors through dopant engineering. Inside [(CH3)4N]2ZrCl6, Sb3+and Bi3+have a weak host–guest interaction, showing a varied PL from the host and guest emission centers under different excitations.
- Published
- 2024
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