Journal article

Aggregation-induced emission-mediated spectral downconversion in luminescent solar concentrators

Bolong Zhang, James L Banal, David J Jones, Ben Zhong Tang, Kenneth P Ghiggino, Wallace WH Wong

Materials Chemistry Frontiers | Royal Society of Chemistry | Published : 2018

Abstract

The light-harvesting efficiency of luminescent solar concentrators (LSCs) is encumbered by reabsorption of emission and concentration quenching. Energy transfer from a high-concentration donor to a low-concentration energy trap can reduce reabsorption losses while maintaining efficient light collection. Emissive aggregates enable this approach by reducing the impact of concentration quenching, which is detrimental to the entire energy transfer process. Here we describe a LSC that utilizes emissive aggregates as energy-transfer pairs for downconversion. We characterize the photophysics of a benzothiadiazole-based emissive aggregate, PITBT-TPE, that complements a highly emissive donor, DPATPAN..

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Grants

Awarded by ARC Future Fellowship


Awarded by ARC Centre of Excellence in Exciton Science


Awarded by Innovation and Technology Commission


Funding Acknowledgements

This work was made possible by support from the Australian Renewable Energy Agency which funds the project grants within the Australian Centre for Advanced Photovoltaics (ACAP). JLB was supported by an Australian Postgraduate Award and Eugen Singer Award during the period of this work. Responsibility for the views, information or advice expressed herein is not accepted by the Australian Government. WWHW is supported by an ARC Future Fellowship (FT130100500). KPG and WWHW are also supported by the ARC Centre of Excellence in Exciton Science (CE170100026). BZT acknowledges the Innovation and Technology Commission (ITC-CNERC14SC01) for support.