Friend or foe? The role of solvents in non-triplet, intraligand charge transfer sensitization of lanthanide(iii) luminescence. Issue 78 (4th August 2016)

• Record Type: Journal Article
• Authors: Lo, Wai-Sum; Wong, Wing-Tak; Law, Ga-Lai
• Is Part Of: RSC advances. Volume 6:Issue 78(2016)
• Page Start: 74100
• Page End: 74109
• Publication Date: 2016-08-04
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra15365h
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A comprehensive photophysical and solvatochromic study is conducted to evaluate the luminescence properties of our Eu(iii ), Sm(iii ) and Yb(iii ) complexes. Abstract : Sensitization of lanthanide luminescence in the visible and near infra-red (NIR) region was achieved via a non-triplet energy transfer pathway by long-wavelength excitation of an intraligand charge transfer (ILCT) band of a diethylamino-based ligand system. A comprehensive photophysical and solvatochromic study is conducted to evaluate the luminescence properties of our Eu(iii ), Sm(iii ) and Yb(iii ) complexes. The effects of solvent coordination and solvent quenching on lanthanide luminescence were studied in detail and efforts were also devoted into examining the ambiguous energy transfer mechanism of Yb(iii ) sensitization.