A dual-emitting inorganic-organic hybrid material with emission intensity enchanced via electron-transfer photochromism
| Autor: | Jian Lu, Guo-Cong Guo, Zhi-Xin Xie, Yong-Qin Wei, Hang Liu, Yong-Fang Han |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Quenching (fluorescence) Process Chemistry and Technology General Chemical Engineering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Fluorescence 0104 chemical sciences chemistry.chemical_compound Photochromism Electron transfer chemistry Isoquinoline 0210 nano-technology Hybrid material Phosphorescence Luminescence |
| Zdroj: | Dyes and Pigments. 181:108441 |
| ISSN: | 0143-7208 |
| DOI: | 10.1016/j.dyepig.2020.108441 |
| Popis: | A new photochromic inorganic-organic hybrid material [(N-MeIQL)BiCl4] (1, N-MeIQL+ = N-methylisoquinolinium) has been solvothermally synthesized. In 1 the N-MeIQL+ cation is obtained by in situ alkylation of isoquinoline in the acidized methanol solution, and it is firstly reported that N-MeIQL+ acts as an organic template for the design and synthesis of photochromic material. Compound 1 exhibits reversible photochromism between colorless and bright yellow. Moreover, compound 1 displays dual-emitting luminescence and the lifetimes of the two emissions at 410 nm and 640 nm were measured to be 0.71 ns and 0.28 ms, respectively, indicating the fluorescence and phosphorescence characteristics. It is notable that unlike the luminescence quenching of normal photochromic materials in the process of photoinduced coloration, and the emission intensity of 1 can be significantly enhanced via electron-transfer photochromism. The studies of electron-transfer photochromism and photomodulated luminescence provide useful insight into the design of new photoresponsive materials. |
| Databáze: | OpenAIRE |
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