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7636262 
Journal Article 
Ruthenium(II) polyimine complexes with a long-lived 3IL excited state or a 3MLCT/3 IL equilibrium: efficient triplet sensitizers for low-power upconversion 
Ji, S; Wu, W; Wu, W; Guo, H; Zhao, J; , 
2011 
Yes 
Angewandte Chemie (International Edition)
ISSN: 1433-7851
EISSN: 1521-3773 
WILEY-V C H VERLAG GMBH 
WEINHEIM 
50 
7 
1626-1629 
English 
21308919 
WOS:000287162900020 
Up, up, and away! The long-lived 3IL excited states of Ru II polyimine complexes were found to be more efficient in sensitizing upconversion based on triplet-triplet annihilation (TTA) and energy transfer (TTET) than the shorter-lived 3MLCT excited states (see picture). Upconversion occurs with an anti-Stokes shift of up to 0.77a eV. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. 
photochemistry; pyrene; ruthenium; triplet excited states; upconversion