Journal article

Sensitized non-coherent photon upconversion by intramolecular triplet-triplet annihilation in a diphenylanthracene pendant polymer

Andrew J Tilley, Benjamin E Robotham, Ronald P Steer, Kenneth P Ghiggino

CHEMICAL PHYSICS LETTERS | ELSEVIER SCIENCE BV | Published : 2015

Abstract

Non-coherent photon upconversion by rapid intramolecular triplet-triplet annihilation has been observed following nanosecond laser excitation of Ru(dmb)3 and sequential two-fold triplet energy sensitization of a polymer containing 30 pendant diphenylanthracene groups. A global kinetic analysis of the system has been performed; the intramolecular annihilation step occurs on a sub-nanosecond time scale.

University of Melbourne Researchers

Grants

Awarded by Australian Research Council


Funding Acknowledgements

The authors are grateful for the continuing financial support of the Australian Research Council (Grants DP 0986166 and LE0989197 to K.P.G.) and the Natural Sciences and Engineering Research Council of Canada (to R.P.S.). We thank Drs. Ming Chen and Evan Moore for provision of the compounds and Ms. Kyra Schwarz for assistance with data analysis.