期刊
NATURE COMMUNICATIONS
卷 4, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms3717
关键词
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资金
- NSFC of China [21001022, 21171033, 21131001, 21222105]
- Foundation for Author of National Excellent Doctoral Dissertation of P.R. China [201022]
- National Basic Research Program of China (973 Program) [2009CB623605]
- SRFDP and RGC ERG Joint Research Program [20120043140001]
- National Science Foundation [DMR-1206700]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1206700] Funding Source: National Science Foundation
Metal-organic frameworks (MOFs) are well known for their tunable structure and porosity. Many studies have shown they are promising for various important applications, for which their performance can be further enhanced by encapsulating functional species, such as luminescent guest molecules, within the frameworks. Although numerous MOFs are luminescent, very few emit white light and their quantum yield is usually low. Here we report a strategy to achieve efficient white-light emission by encapsulating an iridium complex in the MOF cavity. A mesoporous blue-emitting MOF is prepared as host to encapsulate a yellow-emitting iridium complex, [Ir(ppy)(2)(bpy)](+). The resultant composites emit bright white light with good colour quality (for example, Commission International de I'Eclairage coordinates, colour-rendering index and correlated colour temperature of (0.31, 0.33), 84.5 and 5409 K, respectively), and high quantum yield up to 115 degrees C. This strategy may open new perspectives for developing high-performance energy-saving solid-state lighting materials.
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