Amelia Barreiro, Herre S. J. van der Zant, Lieven M. K. Vandersypen
We present graphene quantum dots endowed with addition energies as large as 1.6 eV, fabricated by the controlled rupture of a graphene sheet subjected to a large electron current in air. The size of the quantum dot islands is estimated to be in the 1 nm range. The large addition energies allow for Coulomb blockade at room temperature, with possible application to single-electron devices.
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http://arxiv.org/abs/1211.4551
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