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Issue 12, 2015
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ESR spectroscopy as a powerful tool for probing the quality of conjugated polymers designed for photovoltaic applications

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Abstract

Here we report the application of the Electron Spin Resonance (ESR) spectroscopy as a highly sensitive analytical technique for assessment of the electronic quality of organic semiconductor materials, particularly conjugated polymers. It has been shown that different batches of the same conjugated polymer might contain substantially different amounts of radical species which were attributed to structural defects and/or impurities behaving as traps for mobile charge carriers. Good correlations between the concentrations of radicals in various batches of conjugated polymers and their performances in organic solar cells have been revealed.

Graphical abstract: ESR spectroscopy as a powerful tool for probing the quality of conjugated polymers designed for photovoltaic applications

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Supplementary files

Article information


Submitted
07 Aug 2014
Accepted
23 Oct 2014
First published
23 Oct 2014

Chem. Commun., 2015,51, 2239-2241
Article type
Communication
Author version available

ESR spectroscopy as a powerful tool for probing the quality of conjugated polymers designed for photovoltaic applications

D. K. Susarova, N. P. Piven, A. V. Akkuratov, L. A. Frolova, M. S. Polinskaya, S. A. Ponomarenko, S. D. Babenko and P. A. Troshin, Chem. Commun., 2015, 51, 2239
DOI: 10.1039/C4CC06197G

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