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Photoactive Donor−Acceptor Composite Nanoparticles Dispersed in Water

Abstract : A major issue that inhibits large-scale fabrication of organic solar modules is the use of chlorinated solvents considered as toxic and hazardous. In this work, composite particles of poly[N-9’-heptadecanyl-2,7-carbazole-alt-5,5-(4,7-di-2-thienyl-2’,1’,3’-benzothiadiazole] (PCDTBT) and [6,6]-Phenyl C71 butyric acid methyl ester (PC71BM) were obtained in water from a versatile and a ready-to-market methodology based on post-polymerization miniemulsification. Depending on experimental conditions, size-controlled particles comprising both the electron-donor and the electron-acceptor were obtained and characterized using transmission electron microscopy (TEM), atomic force microscopic (AFM), small-angle neutron scattering (SANS), UV-visible absorption and fluorescence spectroscopies. Intimate mixing of the two components was definitely asserted through PCDTBT fluorescence quenching in the composite nanoparticles. The water-based inks were used for the preparation of photovoltaic active layers which were subsequently integrated in organic solar cells.
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https://hal.archives-ouvertes.fr/hal-01452648
Contributor : Eric Cloutet <>
Submitted on : Thursday, February 2, 2017 - 10:04:55 AM
Last modification on : Tuesday, May 12, 2020 - 11:04:04 AM

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Eric Cloutet, Georges Hadziioannou, Laurence Vignau, Cyril Brochon, Gilles Pecastaings, et al.. Photoactive Donor−Acceptor Composite Nanoparticles Dispersed in Water. Langmuir, American Chemical Society, 2017, 33 (6), pp.1507-1515. ⟨10.1021/acs.langmuir.6b04496⟩. ⟨hal-01452648⟩

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