Concentrating Aggregation-Induced Fluorescence in Planar Waveguides: A Proof-of-Principle
James L Banal, Jonathan M White, Kenneth P Ghiggino, Wallace WH Wong
SCIENTIFIC REPORTS | NATURE PUBLISHING GROUP | Published : 2014
The photophysical properties of fluorescent dyes are key determinants in the performance of luminescent solar concentrators (LSCs). First-generation dyes--coumarin, perylenes, and rhodamines--used in LSCs suffer from both concentration quenching in the solid-state and small Stokes shifts which limit the current LSC efficiencies to below theoretical limits. Here we show that fluorophores that exhibit aggregation-induced emission (AIE) are promising materials for LSC applications. Experiments and Monte Carlo simulations show that the optical quantum efficiencies of LSCs with AIE fluorophores are at least comparable to those of LSCs with first-generation dyes as the active materials even withou..View full abstract
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We thank Marc Baldo and Noel Giebink for useful discussions. This work was made possible by support from the Australian Renewable Energy Agency which funds the fellowship for WWHW and project grants within the Australian Centre for Advanced Photovoltaics. Responsibility for the views, information or advice expressed herein is not accepted by the Australian Government. JLB would like to acknowledge the support of the Australian government through an Australian Postgraduate Award.