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Real-Time Profiling of Solid-State Nanopores During Solution-Phase Nanofabrication
Y M Nuwan D Y Bandara1, Buddini Iroshika Karawdeniya1, Jason R Dwyer1
1Department of Chemistry, University of Rhode Island , 140 Flagg Road, Kingston, Rhode Island 02881, United States.
ACS Applied Materials & Interfaces
|October 7, 2016
Summary
This study presents a simple method to characterize nanopore size and shape using electrical conductance measurements during fabrication. This approach democratizes nanopore science by avoiding complex microscopy for nanoscale characterization.
Area of Science:
- Nanotechnology
- Materials Science
- Surface Chemistry
Background:
- Traditional nanopore fabrication relies on electron microscopy.
- Solution-based fabrication methods are increasing accessibility in nanopore science.
- Nanopore characterization has historically required specialized microscopic techniques.
Purpose of the Study:
- To develop a low-overhead method for characterizing nanopore size and shape.
- To enable real-time nanopore profiling during fabrication.
- To enhance the accessibility of nanopore characterization techniques.
Main Methods:
- Exploiting the relationship between nanopore conductance and its physical/chemical properties.
- Analyzing changes in nanopore conductance during etching or deposition processes.
- Utilizing conventional nanopore measurement instrumentation.
Main Results:
- A method for characterizing nanopore size and shape beyond simple cylindrical models.
- Real-time monitoring of nanopore formation.
- Compatibility with existing nanopore measurement setups.
Conclusions:
- The developed method simplifies nanopore characterization.
- This technique broadens the accessibility of nanopore science from fabrication to application.
- It provides straightforward nanoscale characterization using electrical measurements.
