Fabrication of nanosized molecular array device and logic gate using dimethyl-phenylethynyl thiol

Area of Science:

• Materials Science
• Nanotechnology
• Organic Electronics

Background:

• Molecular devices offer potential for miniaturized electronic components.
• Fabricating stable and functional metal-molecule-metal (MMM) junctions is crucial for molecular electronics.
• Novel organic molecules are needed to achieve specific electronic properties.

Purpose of the Study:

• To fabricate an array of molecular devices using a novel organic compound.
• To investigate the electronic properties of these molecular devices.
• To demonstrate the application of these devices in logic gates.

Main Methods:

• Fabrication of vertical MMM junctions using RIE for nanopore formation.
• Self-assembly of a synthesized organic molecule (DN) into nanopores.
• Characterization of current-voltage (I-V) properties.
• Implementation of a 3x3 array for logic gate demonstration.

Main Results:

• Successfully fabricated an array of molecular devices with a vertical MMM junction.
• The molecular devices exhibited diode-like current-voltage (I-V) characteristics.
• A 3x3 array of devices containing the DN molecule was implemented as a logic gate.

Conclusions:

• The synthesized DN molecule enables the creation of functional molecular electronic devices.
• The fabricated devices show promise for applications in molecular logic gates.
• This work contributes to the advancement of nanoscale electronic components.