ESR spectroscopy as a powerful tool for probing the quality of conjugated polymers designed for photovoltaic applications.
نویسندگان
چکیده
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.
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عنوان ژورنال:
- Chemical communications
دوره 51 12 شماره
صفحات -
تاریخ انتشار 2015