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Dip-Pen Nanolithography

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Questions and Answers

What principle does dip-pen nanolithography primarily utilize to deliver molecules onto a surface?

Magnetic attraction

Gravitational pull

Capillary forces (correct)

Electrostatic force

Which of the following best describes how dip-pen nanolithography (DPN) forms patterns on a surface?

Through chemical reactions that occur in the air

By using light to etch the surface

By using heat to melt the substrate

Via movement of the AFM tip delivering molecular ink (correct)

In dip-pen nanolithography, what is the role of the reservoir of molecular ink?

To eliminate the need for surface tension

To enhance the electrical conductivity of the tip

To provide a constant supply of molecules (correct)

To cool the AFM tip during operation

What are the 'raised' parts of the image in DPN formed from?

<p>The self-assembling molecules deposited by the tip</p> Signup and view all the answers

What can be created using dip-pen nanolithography besides simple patterns?

<p>Complex three-dimensional structures</p> Signup and view all the answers

Study Notes

Dip-Pen Nanolithography (DPN)

Dip-pen nanolithography (DPN) is a scanning probe technique that uses surface tension and self-assembling monolayers (SAMs) for selective patterning on a surface.
DPN employs the meniscus of water between an atomic force microscopy (AFM) tip and the surface to deliver self-assembling molecules using capillary forces.
A reservoir of the molecular "ink" provides a continuous supply as the tip moves.
The tip's controlled movement allows for creating patterns using the scanner.
Patterning is visible only where the AFM tip has been moved, creating raised areas on the surface.
The method can be adapted for creating complex structures, such as sensors.

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Description

This quiz covers the principles and techniques of dip-pen nanolithography (DPN), a revolutionary method for surface patterning. Explore how DPN utilizes surface tension, self-assembling monolayers, and atomic force microscopy tips to create complex patterns and structures. Test your understanding of its applications and mechanisms!