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Secondary inner filter effect allows extremely efficient pure white light emission by spatially separated organic fluorophores.

A new interesting article has been published in Chem Commun (Camb). 2018 Oct 9;54(81):11479-11482. doi: 10.1039/c8cc06203j. and titled:

Secondary inner filter effect allows extremely efficient pure white light emission by spatially separated organic fluorophores.

Authors of this article are:
Aggarwal H Kumar R Srivastava A .

A summary of the article is shown below:
Efficient white light emission (WLE) using a combination of organic fluorophores requires careful modulation of their distance and orientation. We exploited the secondary inner filter effect (sIFE) between a multi-responsive 2-(1-pyrenyl)benzimidazole (PyBIM) and perylene-monoimide (PMI) secondary emitter to obtain pure WLE (CIE coordinates 0.33, 0.33) with an unsurpassed efficiency of 70 ± 3% under ambient conditions in highly diluted conditions. The sIFE based approach allows extremely efficient WLE using simple fluorophores that are spatially separated.

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