Molecularly isolated perylene diimides enable both strong exciton-photon coupling and high photoluminescence quantum yield
Randy P Sabatini, Bolong Zhang, Akhil Gupta, Julien Leoni, Wallace WH Wong, Girish Lakhwani
JOURNAL OF MATERIALS CHEMISTRY C | ROYAL SOC CHEMISTRY | Published : 2019
Strong coupling in organic media holds the promise of efficient room temperature polariton lasing with solution-processed materials. Currently, however, only five pure-organic materials have been shown to demonstrate polariton lasing. A major challenge is to achieve high exciton-photon coupling while maintaining high photoluminescence quantum yield. Here, we utilize a series of diimide perylene materials that possess sterically hindered substituents, dispersed within a polymer matrix. The rigid structures prevent aggregation and allow high photoluminescence quantum yield (PLQY) at large dye loadings. We demonstrate that these systems can exhibit substantial Rabi splittings at dye loadings th..View full abstract
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Awarded by Australian Research Council Centre of Excellence in Exciton Science
Awarded by ARC Future Fellowship Scheme
This work was supported by the Australian Research Council Centre of Excellence in Exciton Science (funding grant number CE170100026). WWHW acknowledges support from ARC Future Fellowship Scheme (FT130100500) and support from the Australian Renewable Energy Agency which funds the project grants within the Australian Centre for Advanced Photovoltaics. This work was performed in part at the NSW node of the Australian National Fabrication Facility, a company established under the National Collaborative Research Infrastructure Strategy to provide nano and micro-fabrication facilities for Australia's researchers.