Energy Migration in Organic Solar Concentrators with a Molecularly Insulated Perylene Diimide
James L Banal, Hamid Soleimaninejad, Fadi M Jradi, Maoyuan Liu, Jonathan M White, Andrew W Blakers, Matthew W Cooper, David J Jones, Kenneth P Ghiggino, Seth R Marder, Trevor A Smith, Wallace WH Wong
JOURNAL OF PHYSICAL CHEMISTRY C | AMER CHEMICAL SOC | Published : 2016
Maintaining high incident light absorption while minimizing luminescence reabsorption is a key challenge for organic luminescent solar concentrators (LSCs). Energy migration and trapping using light-harvesting donors and a low-energy highly emitting acceptor is one strategy to reduce the reabsorption issue. However, concentration quenching and the potential formation of quenching aggregates is a limiting factor in realizing efficient devices. We describe the synthesis of a novel molecularly insulated perylene diimide that can resist luminescence quenching at concentrations in excess of 50 mM. Photophysical measurements show the insulated perylene diimide has an excitation energy migration di..View full abstract
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Awarded by Australian Research Council Future Fellowship
This work was made possible by support from the Australian Renewable Energy Agency that funds the project grants within the Australian Centre for Advanced Photovoltaics. W.W.H.W. is supported by an Australian Research Council Future Fellowship (FT130100500). J.L.B. acknowledges an Australian Postgraduate Award and the Eugen Singer Award from the University of Melbourne for financial support. Responsibility for the views, information, or advice herein is not accepted by the Australian Government.