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Journal Article
Fabrication of Nanosized Molecular Array Device and Logic Gate Using Dimethyl-Phenylethynyl Thiol
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- Authors
- Do-Hyun Kim, Hyoyoung Lee, Chung-Kun Song, Changjin Lee
- Issue Date
- 2006-11
- Citation
- Journal of Nanoscience and Nanotechnology, v.6, no.11, pp.3470-3473
- ISSN
- 1533-4880
- Publisher
- American Scientific Publishers (ASP)
- Language
- English
- Type
- Journal Article
- Abstract
- We fabricated an array of molecular devices with a simple vertical metal-molecule-metal (MMM) junction. The nano via holes are formed in SiNx or SiO2 layer by RIE to contain the molecules inside. Finally, the top Ti/Au contact has been deposited by e-beam evaporation with cooling stage. By using self-assembly process, the organic molecules dissolved in dry and oxygen-free THF are inserted to the nanopore array device for 24 hours. We used the newly synthesized compound 4-[4-(3,5-Dimethyl-phenylethynyl)-3-nitro-phenylethynyl]-benzenethiol (DN), which is designed for adding two methyl groups at 3,5 position of phenylethynyl group of Tour's compound (4-(2-Nitro-4-phenylethynyl-phenylethyyl)-benzenethiol). The molecular devices produced the diode-like I−V characteristics and were implemented to logic gate with 3 × 3 array devices containing the DN molecule.
- KSP Keywords
- AND logic gates, Oxygen-free, Self-assembly process, Via-hole, diode-like, e-beam evaporation, metal-molecule-metal, methyl groups, molecular devices, nanopore array, organic molecules