Construction and characterization of an inorganic–organic hybrid copper(I) iodide coordination polymer with semiconducting luminescence.
In: New Journal of Chemistry, Jg. 48 (2024-06-21), Heft 23, S. 10646-10652
academicJournal
Zugriff:
Inorganic–organic hybrid semiconductors based on copper(I) halide are intriguing luminescent materials possessing great prospects as rare-earth elements (REEs) free phosphors for use in solid-state lighting (SSL). However, it is still a great challenge to develop such hybrid semiconducting materials with high energy blue light emission and good thermal stability simultaneously. Here, we have synthesized a brand new, one-dimensional (1D) organic–inorganic semiconductor CuI-Pytz (Pytz = 4-(pyrid-2-yl)-1,2,4-triazole) using a solvent diffusion method, for which the structure was determined by single crystal X-ray diffraction (SCXRD) and shows great thermal stability and decomposition temperature up to 220 °C. At room temperature, this indirect band gap hybrid semiconductor shows a blue emission centered at 464 nm which was nearing deep blue light (<460 nm) with a band gap energy of 2.70 eV. In addition, we developed a simple method for large-scale synthesis of the microcrystal, which significantly enhances the possibility of widespread applications for CuI-Pytz. Both density functional theory calculations and experimental studies reveal that the blue light emission originates from the combination of metal-to-ligand charge transfer (MLCT) and halide-to-ligand charge transfer (XLCT). The good thermal stability and high energy blue light emission make this low-cost and easily available copper(I) halide hybrid semiconductor a potential candidate for use as rare-earth free phosphors. [ABSTRACT FROM AUTHOR]
Titel: |
Construction and characterization of an inorganic–organic hybrid copper(I) iodide coordination polymer with semiconducting luminescence.
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Autor/in / Beteiligte Person: | Yang, Hui ; Kuang, Xiaofei ; Mi, Ying-Hao ; Wang, Ming-Ming ; Zhao, Yuqing ; Lin, Fulin ; Lu, Can-Zhong |
Zeitschrift: | New Journal of Chemistry, Jg. 48 (2024-06-21), Heft 23, S. 10646-10652 |
Veröffentlichung: | 2024 |
Medientyp: | academicJournal |
ISSN: | 1144-0546 (print) |
DOI: | 10.1039/d4nj01779j |
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