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1篇 您的检索式：作者名="Wanggui Ye"

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		题名	作者	年代	出处	被引量
	1	High-excited-state splitting and multimode vibrational coupling in Mn^(4+)-activated fluoride phosphor显示文摘Excited-states play a crucial role in the optical absorption and luminescence of solids and hence their accurate information is highly desired. Herein, we attempt to seize the excited-states information of Mn^(4+)ions in K_(2)SiF_(6) microcrystals via measuring and calculating their variable-temperature photoluminescence excitation(PLE) spectra. At cryogenic temperatures, an unpredicted splitting of the high-excited-state is observed. Moreover, the two-split high-excited-state levels are further revealed to primarily couple with the two hyperfine split modes of quasi-localized ν2 vibration in the distorted Mn-F_(6) octahedral configuration,whereas the coupling strengths are found to be substantially different from each other. The slightly split vibrational mode is firmly supported by the low-temperature Raman spectra. Jahn-Teller lattice distortion is believed to be responsible for the observed splitting of the electronic high-excited-state and the quasi-localized vibrational mode.	Debao Zhang Wanggui Ye Xuguang Cao Ji Zhou Fei Tang Changcheng Zheng Jiqiang Ning Shijie Xu	2024	Science China(Physics,Mechanics & Astronomy)2024，67，3：	0

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