Intramolecular Triplet-Triplet Annihilation Upconversion in 9,10-Diphenylanthracene Oligomers and Dendrimers
Artikel i vetenskaplig tidskrift, 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.

Författare

Damir Dzebo

Chalmers, Kemi och kemiteknik, Kemi och biokemi, Fysikalisk kemi

Karl Börjesson

Göteborgs universitet

Victor Gray

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

Kasper Moth-Poulsen

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

Bo Albinsson

Chalmers, Kemi och kemiteknik, Kemi och biokemi, Fysikalisk kemi

Journal of Physical Chemistry C

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

Vol. 120 23397-23406

Styrkeområden

Nanovetenskap och nanoteknik

Energi

Materialvetenskap

Infrastruktur

Chalmers infrastruktur för masspektrometri

Chalmers materialanalyslaboratorium

Ämneskategorier

Kemiteknik

Kemi

DOI

10.1021/acs.jpcc.6h07920