New route to strong, long-lived room-temperature phosphorescence using organic phosphor guest-friendly matrices [Al(DMSO)6]X3 (X=Cl−, Br−)
| Autor: | Wang-Jian Fang, Yanqin Li, Huajun Andrew Zhou, Jian-Jun Zhang, Chunying Duan, Shu-Qin Liu, Zhen Liu, Jun Ni, Bo Song |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Process Chemistry and Technology General Chemical Engineering Doping Ionic bonding Phosphor 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Matrix (mathematics) Phase (matter) Physical chemistry Quantum efficiency 0210 nano-technology Phosphorescence |
| Zdroj: | Dyes and Pigments. 177:108323 |
| ISSN: | 0143-7208 |
| DOI: | 10.1016/j.dyepig.2020.108323 |
| Popis: | Developing highly desirable organic compounds with strong long-lived room-temperature phosphorescence (RTP) under ambient conditions has been a grand challenge. Present here is a new type of crystalline matrices based on ionic solvento complexes, [Al(DMSO)6]X3 (X− = Cl−, Br−) which can trap various trace amount of organic phosphors to prepare low-cost RTP materials. The phosphorescence of such phases in the air at RT can demonstrate both long lifetime (up to 229.7 ms) and high quantum efficiency (up to 15.8%) due to RTP-enhancing X− anions and phosphor-protecting matrices. Further, the guest-friendly feature of the matrices enables the development of a multiple-RTP doped phase via the simultaneous inclusion of two phosphors into one matrix, enabling unprecedented two-dimensional anti-counterfeiting. The work not only finds a new and facile route to develop low-cost RTP materials including multiple-RTP materials but also expands their application domains. |
| Databáze: | OpenAIRE |
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