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Efficient and tunable white-light emission of metal-organic frameworks by iridium-complex encapsulation.

Abstract：

: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 °C. This strategy may open new perspectives for developing high-performance energy-saving solid-state lighting materials.

journal_name

Nat Commun

journal_title

Nature communications

authors

Sun CY,Wang XL,Zhang X,Qin C,Li P,Su ZM,Zhu DX,Shan GG,Shao KZ,Wu H,Li J

doi

10.1038/ncomms3717

subject

Has Abstract

pub_date

2013-01-01 00:00:00

pages

2717

issn

2041-1723

pii

ncomms3717

journal_volume

4

pub_type

杂志文章

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