Intramolecular Triplet-Triplet Annihilation Upconversion in 9,10-Diphenylanthracene Oligomers and Dendrimers
Journal article, 2016

An important challenge when developing materials for triplet triplet annihilation upconversion (TTA-UC) is achieving efficient and well-functioning solid-state systems. We here explore the effect of intramolecular TTA in oligomers and dendrimers based on the 9,10-diphenylanthracene (DPA) chromophore. The macromolecules are sensitized using palladium porphyrin, both in solution and in solid poly(methyl methacrylate) (PMMA), demonstrating a positive effect on overall upconversion in the solid state correlating with the well-controlled size of the DPA constructs. The UC kinetics is modeled and fit to steady-state and time-resolved emission data to give further insight into the intramolecular excited-state migration and annihilation in the macromolecular annihilator systems.

Author

Damir Dzebo

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry, Physical Chemistry

Karl Börjesson

University of Gothenburg

Victor Gray

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Polymer Technology

Kasper Moth-Poulsen

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Polymer Technology

Bo Albinsson

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry, Physical Chemistry

Journal of Physical Chemistry C

1932-7447 (ISSN) 1932-7455 (eISSN)

Vol. 120 41 23397-23406

Areas of Advance

Nanoscience and Nanotechnology (2010-2017)

Energy

Materials Science

Infrastructure

Chalmers Infrastructure for Mass spectrometry

Chalmers Materials Analysis Laboratory

Subject Categories

Chemical Engineering

Chemical Sciences

DOI

10.1021/acs.jpcc.6h07920

More information

Latest update

5/17/2018