Plasmonic sinks for the selective removal of long-lived states

Stéphane Kéna-Cohen, Aeneas Wiener, Yonatan Sivan, Paul N. Stavrinou, Donal D.C. Bradley, Andrew Horsfield, Stefan A. Maier

Research output: Contribution to journalArticlepeer-review

42 Scopus citations


The use of plasmonic nanostructures for the removal of unwanted long-lived states is investigated. We show that the total decay rate of such a state can be increased by up to 4 orders of magnitude, as compared to its intrinsic radiative decay rate, while leaving other neighboring optical transitions unaffected. For the specific case of molecular triplet excited states, we show that the use of a "plasmonic sink" has the potential to reduce photobleaching and ground-state depletion by at least 2 orders of magnitude. We consider, in addition, the impact of such structures on the performance of organic semiconductor lasers and show that, under realistic device conditions, plasmonic sinks have the capacity to increase the achievable laser repetition rate by a factor equal to the triplet decay rate enhancement. We conclude by studying the effect of exciton diffusion on the triplet density in the presence of metallic nanoparticles. © 2011 American Chemical Society.
Original languageEnglish (US)
JournalACS Nano
Issue number12
StatePublished - Dec 27 2011
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2019-11-27


Dive into the research topics of 'Plasmonic sinks for the selective removal of long-lived states'. Together they form a unique fingerprint.

Cite this