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Current-Voltage Characteristics with a Step Structure of Metal/Polyimide/Rhodamine-Dendrimer/Polyimide/ Metal Junction

Yutaka NOGUCHI, Yutaka MAJIMA, Mitsumasa IWAMOTO, Tohru KUBOTA, Shiyoshi YOKOYAMA, Tatsuo NAKAHAMA, Shinro MASHIKO

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Summary :

We examined the current-voltage (I-V) characteristic of metal/polyimide/rhodamine-dendorimer/polyimide/ metal junctions prepared by the Langmuir-Blodgett (LB) technique. At a temperature of 32.8 K, a step structure was observed in the I-V characteristic, whereas it was not observed for the junctions without rhodamine-dendorimer. The step structure was very similar to that seen in so-called Coulomb staircase. On the basis of the model of Coulomb blockade, the possibility of single electron tunneling via rhodamine-dendrimer (Rh-G2) molecule as a quantum dot was discussed.

Publication
IEICE TRANSACTIONS on Electronics Vol.E83-C No.7 pp.1076-1080
Publication Date
2000/07/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on Organic Molecular Electronics for the 21st Century)
Category
Ultra Thin Film

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