Negative Differential Resistance Probe for Interdot Interactions in a Double Quantum Dot Array.
J Phys Chem Lett
; 6(9): 1521-8, 2015 May 07.
Article
in En
| MEDLINE
| ID: mdl-26263306
ABSTRACT
Colloidal quantum dots are free-standing nanostructures with chemically tunable electronic properties. In this work, we consider a new STM tip-double quantum dot (DQD)-surface setup with a unique connectivity, in which the tip is coupled to a single dot and the coupling to the surface is shared by both dots. Our theoretical analysis reveals a unique negative differential resistance (NDR) effect attributed to destructive interference during charge transfer from the DQD to the surface. This NDR can be used as a sensitive probe for interdot interactions in DQD arrays.
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
J Phys Chem Lett
Year:
2015
Document type:
Article
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