Zero-Dimensional Hybrid Organic–Inorganic Indium Bromide with Blue Emission
| Autor: | Cordell Delzer, Aymen Yangui, Hadiah Fattal, Daniel T. Glatzhofer, Jason P. Hayward, Tielyr D. Creason, Bradley J. Ross, Bayrammurad Saparov, Mao-Hua Du |
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| Rok vydání: | 2021 |
| Předmět: |
Photoluminescence
010405 organic chemistry Quantum yield Halide Crystal structure 010402 general chemistry Photochemistry 01 natural sciences 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound Metal halides chemistry Light emission Physical and Theoretical Chemistry Spectroscopy Hybrid material |
| Zdroj: | Inorganic Chemistry. 60:1045-1054 |
| ISSN: | 1520-510X 0020-1669 |
| Popis: | Low-dimensional hybrid organic-inorganic metal halides have received increased attention because of their outstanding optical and electronic properties. However, the most studied hybrid compounds contain lead and have long-term stability issues, which must be addressed for their use in practical applications. Here, we report a new zero-dimensional hybrid organic-inorganic halide, RInBr4, featuring photoemissive trimethyl(4-stilbenyl)methylammonium (R+) cations and nonemissive InBr4- tetrahedral anions. The crystal structure of RInBr4 is composed of alternating layers of inorganic anions and organic cations along the crystallographic a axis. The resultant hybrid demonstrates bright-blue emission with Commission Internationale de l'Eclairage color coordinates of (0.19, 0.20) and a high photoluminescence quantum yield (PLQY) of 16.36% at room temperature, a 2-fold increase compared to the PLQY of 8.15% measured for the precursor organic salt RBr. On the basis of our optical spectroscopy and computational work, the organic component is responsible for the observed blue emission of the hybrid material. In addition to the enhanced light emission efficiency, the novel hybrid indium bromide demonstrates significantly improved environmental stability. These findings may pave the way for the consideration of hybrid organic In(III) halides for light emission applications. |
| Databáze: | OpenAIRE |
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