Gating of enhanced electron-charging thresholds in self-assembled nanoparticle films |
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Authors: | Suganuma Yoshinori Dhirani Al-Amin |
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Affiliation: | Department of Chemistry, University of Toronto, Toronto, Ontario, Canada. |
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Abstract: | Films of butanedithiol interconnected nanoparticles can exhibit a percolation-driven insulating to metal transition. To explore properties of materials with interpolating behavior, we have measured conductance of these films with systematically varying thickness. Films below a certain threshold coverage exhibit thermally assisted conductance and conductance suppression near zero bias indicative of single-electron-charging barriers. In analogy with semiconductors, we show that these films permit transistor-type gating of film conductivity. |
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