Site-specific dual ink dip pen nanolithography

Area of Science:

• Nanotechnology
• Materials Science
• Surface Chemistry

Background:

• Dip pen nanolithography (DPN) offers nanoscale precision for material deposition.
• DPN combined with lateral force microscopy (LFM) enables site-specific nanoscale property analysis.
• Advanced software is crucial for sophisticated DPN applications.

Purpose of the Study:

• To demonstrate site-specific dual-ink DPN using proprietary software.
• To showcase the capability of creating complex, multi-material nanoscale patterns.
• To highlight the versatility of DPN for advanced patterning and interaction studies.

Main Methods:

• Utilized two distinct inks: 16-mercaptohexadecanoic acid (MHA) and 1-octadecanethiol (ODT).
• Developed and employed a proprietary software for site-specific dual-ink DPN.
• Implemented a layer-to-layer alignment (LLA) algorithm for precise pattern superposition.

Main Results:

• Successfully created a concentric diamond-dot pattern using MHA and ODT inks.
• Demonstrated site-specific deposition of two different materials with nanoscale accuracy.
• Validated the capability of the proprietary software and LLA algorithm for multi-ink DPN.

Conclusions:

• Proprietary software enables site-specific dual-ink DPN for advanced nanoscale patterning.
• The demonstrated technique is adaptable for multi-material patterning, interaction, and exchange studies.
• DPN's potential extends beyond simple deposition to complex nanoscale investigations.