Jump to main content
Jump to site search

Issue 3, 2018
Previous Article Next Article

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

Author affiliations

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, and functions as a highly emissive energy-transfer acceptor even at high concentrations in excess of 180 mM in the PMMA matrix. Monte Carlo simulations of LSCs that leverage these emissive aggregates as energy-transfer pairs predicted notable optical efficiencies at large concentrator dimensions. We demonstrate for the first time a LSC that utilizes donor and acceptor AIE chromophores to reduce reabsorption.

Graphical abstract: Aggregation-induced emission-mediated spectral downconversion in luminescent solar concentrators

Back to tab navigation

Supplementary files

Article information


Submitted
19 Dec 2017
Accepted
24 Jan 2018
First published
29 Jan 2018

Mater. Chem. Front., 2018,2, 615-619
Article type
Research Article

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

B. Zhang, J. L. Banal, D. J. Jones, B. Z. Tang, K. P. Ghiggino and W. W. H. Wong, Mater. Chem. Front., 2018, 2, 615
DOI: 10.1039/C7QM00598A

Social activity

Search articles by author

Spotlight

Advertisements