Abstract:Electrically detected magnetic resonance (EDMR) spectroscopy is employed to study the influence of triplet excitons on the photocurrent in state-of-the-art microcrystalline silicon thin-film solar cells. These triplet excitons are used as sensitive spin probes for the investigation of their electronic and nuclear environment in this mixedphase material. According to low-temperature EDMR results obtained from solar cells with different 29 Si isotope concentrations between 0.01% and 50%, the triplet excitons res… Show more
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