Monday, June 24, 2013

1306.5097 (Biagio Nigro et al.)

Enhanced tunneling conductivity induced by gelation of attractive

Biagio Nigro, Claudio Grimaldi, Peter Ryser, Francesco Varrato, Giuseppe Foffi, Peter J. Lu
We show that the formation of a gel by conducting colloidal particles leads to a dramatic enhancement in bulk conductivity, due to inter-particle electron tunneling, combining predictions from molecular dynamics simulations with structural measurements in an experimental colloid system. Our results show how colloidal gelation can be used as a general route to huge enhancements of conductivity, and suggest a feasible way for developing cheap materials with novel properties and low metal content.
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