Determining the critical particle size to induce enhanced emission in aggregates of a highly twisted triarylamine

Akshay Kokil; J Matthew Chudomel; Boqian Yang; Michael D Barnes; Paul M Lahti; Jayant Kumar

doi:10.1002/cphc.201300667

Determining the critical particle size to induce enhanced emission in aggregates of a highly twisted triarylamine

Chemphyschem. 2013 Nov 11;14(16):3682-6. doi: 10.1002/cphc.201300667. Epub 2013 Oct 2.

Authors

Akshay Kokil¹, J Matthew Chudomel, Boqian Yang, Michael D Barnes, Paul M Lahti, Jayant Kumar

Affiliation

¹ Center for Advanced Materials, University of Massachusetts, Lowell, One University Ave. Lowell, MA 01854 (USA). akshay_kokil@uml.edu.

PMID: 24123964
DOI: 10.1002/cphc.201300667

Abstract

Towards highly luminescent aggregates: A highly twisted triphenylamine displays aggregation-induced enhanced emission. A solvent-specific critical molecular aggregate size, once reached, gives rapid onset of enhanced emission in polar solvent mixtures that favor quenching of solvated individual molecule excited states.

Keywords: aggregate fluorescence; aggregation-induced enhanced emission; photoluminescence; solvatochromism; triarylamine fluorescence.