Improved fluorescence yields through selective photooxidation of conjugated polymer chromophores

Benjamin W. Martin; Christopher Melnychuk; Lewis J. Rothberg

doi:10.1117/1.JPE.8.032219

7 June 2018 Improved fluorescence yields through selective photooxidation of conjugated polymer chromophores

Benjamin W. Martin, Christopher Melnychuk, Lewis J. Rothberg

Author Affiliations +

Journal of Photonics for Energy, Vol. 8, Issue 3, 032219 (June 2018). https://doi.org/10.1117/1.JPE.8.032219

Abstract

The conjugated polymer MEH-PPV consists of two basic types of chromophores that we characterize as “isolated” and “aggregated.” Because the aggregated chromophores have lower emissive yields but are favored by energy migration, we show that preferential bleaching of the aggregated chromophores can result in substantially improved fluorescence quantum yield. We study a wide variety of sample types including solutions, dilute films, neat films, and core-shell particles and show that the degree to which luminescence improvements are possible depends on the organization of the chromophores.

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Benjamin W. Martin, Christopher Melnychuk, and Lewis J. Rothberg "Improved fluorescence yields through selective photooxidation of conjugated polymer chromophores," Journal of Photonics for Energy 8(3), 032219 (7 June 2018). https://doi.org/10.1117/1.JPE.8.032219

Received: 23 February 2018; Accepted: 22 May 2018; Published: 7 June 2018

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