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Unimolecular Electrical Rectification Down to 105 K, and Spectroscopy of Hexadecylquinolinium Tricyanoquinodimethanide

Published online by Cambridge University Press:  21 March 2011

R. M. Metzger
Affiliation:
Laboratory for Molecular Electronics, Chemistry Department, University of Alabama, Tuscaloosa, AL 35487-0336, USA, rmetzger@bama.ua.edu
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Abstract

A Langmuir-Blodgett monolayer of γ-(n-hexadecyl)quinolinum tricyanoquinodimethanide, C16H33Q-3CNQ (1), sandwiched between Al electrodes, shows asymmetric DC electrical conductivity between 370 K and 105 K. The enhanced forward current is attributable to rectification of electrical current by a single molecule, and is explained by an electronic transition from a high-moment zwitterionic ground state to a low-moment undissociated first excited state.

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Research Article
Copyright
Copyright © Materials Research Society 1999

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Unimolecular Electrical Rectification Down to 105 K, and Spectroscopy of Hexadecylquinolinium Tricyanoquinodimethanide
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