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First-principles study of the switching characteristics of the phenoxynaphthacenequinone-based optical molecular switch with carbon nanotube electrodes

โœ Scribed by P. Zhao; C.F. Fang; Y.M. Wang; Y.X. Zhai; D.S. Liu

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
801 KB
Volume
41
Category
Article
ISSN
1386-9477

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โœฆ Synopsis

We have studied the switching characteristics of an optical molecular switch based on the phenoxynaphthacenequinone (PNQN) molecule with two armchair single-walled carbon nanotube (SWCNT) electrodes using the first-principles density functional-based non-equilibrium Green's function (DFT-NEGF) method. It is shown that a maximum on-off ratio (about 120) can be obtained at 0.9 V. Our result shows that the PNQN molecule is one of the good candidates for optical molecular switches and the SWCNTs are promising electrode materials and will be useful in the near future.

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โœ P. Zhao; D.S. Liu; P.J. Wang; Z. Zhang; C.F. Fang; G.M. Ji ๐Ÿ“‚ Article ๐Ÿ“… 2011 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 769 KB

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