Abstract:We report the bi-polaron transport and magnetic field induced Pauli spin-blockade in solid-state molecular junctions (MJs) evidenced by a positive magnetoresistance (MR). The junction was made of thin layers of redox-active ruthenium polypyridyl-oligomers Ru(tpy) 2 sandwiched between conducting amorphous carbon (a-C) electrodes. The redox-active Ru(tpy) 2 molecule, which enables small polaron and deep traps in the charge transport of the Ru(tpy) 2 MJ as revealed by the temperature-dependent current-voltage res… Show more
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