Luminescence of a Transition Metal Complex Inside a Metamaterial Nanocavity
Timothy U Connell, Stuart K Earl, Charlene Ng, Ann Roberts, Timothy J Davis, Jonathan M White, Anastasios Polyzos, Daniel E Gomez
Small | John Wiley & Sons | Published : 2017
Modification of the local density of optical states using metallic nanostructures leads to enhancement in the number of emitted quanta and photocatalytic turnover of luminescent materials. In this work, the fabrication of a metamaterial is presented that consists of a nanowire separated from a metallic mirror by a polymer thin film doped with a luminescent organometallic iridium(III) complex. The large spin–orbit coupling of the heavy metal atom results in an excited state with significant magnetic-dipole character. The nanostructured architecture supports two distinct optical modes and their assignment achieved with the assistance of numerical simulations. The simulations show that one mode..View full abstract
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Awarded by ARC
This work was performed in part at the Melbourne Centre for Nanofabrication (MCN) in the Victorian Node of the Australian National Fabrication Facility (ANFF). T.U.C. and C.N. acknowledge the CSIRO for OCE Postdoctoral fellowships. D.E.G. acknowledges the ARC for support through a Future Fellowship (FT140100514), Veski for a Victoria Fellowship, and the ANFF for a Technology Fellowship. A.R., T.J.D., and D.E.G. acknowledge the ARC for support through a Discovery Project (DP160100983). S.K.E. acknowledges the support of a Partnership Grant of Research Focus Area (RFA) of Understanding Diseases from the La Trobe University.