中国物理B ›› 2025, Vol. 34 ›› Issue (6): 66204-066204.doi: 10.1088/1674-1056/adc193
所属专题： SPECIAL TOPIC — Structures and properties of materials under high pressure
Structural regulation and optical behavior of zero-dimensional Cu(I)-based organometallic halides under pressure
Runnan Ye(叶润楠)1,†, Jingtian Wang(王敬天)2,†, Jiayi Yang(杨佳毅)2,†, Xuchen Wang(王旭晨)1, Junce Lei(雷钧策)1, Wenya Zhao(赵文雅)2, Yufan Meng(孟雨凡)2, Guanjun Xiao(肖冠军)2,‡, and Bo Zou(邹勃)2
- 1 College of Physics, Jilin University, Changchun 130012, China;
2 State Key Laboratory of High Pressure and Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
Structural regulation and optical behavior of zero-dimensional Cu(I)-based organometallic halides under pressure
Runnan Ye(叶润楠)1,†, Jingtian Wang(王敬天)2,†, Jiayi Yang(杨佳毅)2,†, Xuchen Wang(王旭晨)1, Junce Lei(雷钧策)1, Wenya Zhao(赵文雅)2, Yufan Meng(孟雨凡)2, Guanjun Xiao(肖冠军)2,‡, and Bo Zou(邹勃)2
- 1 College of Physics, Jilin University, Changchun 130012, China;
2 State Key Laboratory of High Pressure and Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
摘要： Low-dimensional hybrid metal halides exhibit broadband emission and high photoluminescence quantum yield (PLQY), making them promising candidates for the next-generation luminescent materials in lighting applications. Here, the emission intensity of (C$_{12}$H$_{24}$O$_{6}$)$_{2}$Na$_{2}$(H$_{2}$O)$_{3}$Cu$_{4}$I$_{6}$ was strengthened between 9.3 GPa and 17.2 GPa, accompanied by the redshift of emission wavelength. The photoluminescence (PL) of Cu(I)-based organometallic halides originates from multiple emission states, which are a metal-to-ligand charge transfer or a halide-to-ligand charge transfer (MLCT/HLCT) excited state and a cluster-centered (CC) excited state. MLCT/HLCT-related emission wavelength redshifts while CC-related emission wavelength remains unchanged, indicating that the rearrangement of different emission states plays a critical role in the changes of luminescence wavelength. This study not only deepens the understanding of the influence of high pressure on (C$_{12}$H$_{24}$O$_{6}$)$_{2}$Na$_{2}$(H$_{2}$O)$_{3}$Cu$_{4}$I$_{6}$, but also provides valuable insights into the structure-property relationship of zero-dimensional Cu(I)-based organometallic halides.
中图分类号: (High-pressure effects in solids and liquids)
- 62.50.-p