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Charge Transport in 2D DNA Tunnel Junction Diodes
Minho Yoon1, Sung-Wook Min1, Sreekantha Reddy Dugasani2
1Department of Physics, Yonsei University, Seoul, 120-749, South Korea.
Small (Weinheim an Der Bergstrasse, Germany)
|November 7, 2017
Summary
Researchers developed a novel electronic device using deoxyribonucleic acid (DNA) as a tunneling barrier. This DNA-based tunnel diode demonstrates potential for future nanoelectronics applications.
Area of Science:
- Materials Science
- Nanoelectronics
- Biomolecular Engineering
Background:
- Deoxyribonucleic acid (DNA) offers unique advantages for electronics, including abundance, biodegradability, and low cost.
- Current applications of DNA in electronics are restricted to passive components due to its insulating nature.
Purpose of the Study:
- To present a novel metal-insulator-metal tunnel diode utilizing a deoxyribonucleic acid (DNA) nanosheet as a tunneling barrier.
- To explore the potential of DNA-based molecular devices in nanoelectronics.
Main Methods:
- Synthesis of a 2D DNA nanosheet via a self-aligning process.
- Fabrication of a metal-insulator-metal tunnel diode with Au/DNA/NiOx junctions.
- Characterization using temperature-variable current-voltage analysis.
Main Results:
- Successful operation of the molecular device as a nonresonant tunneling diode.
- Identification of Fowler-Nordheim tunneling as the dominant conduction mechanism.
- Demonstration of a functional electronic component using a DNA-based tunneling barrier.
Conclusions:
- DNA-based tunneling devices are promising prototypes for next-generation nanoelectronics.
- The developed device overcomes limitations of previous DNA electronic applications.
- Biomolecules offer a viable platform for advanced electronic components.
Keywords:
2D DNA crystalscharge-transport mechanismsnanosheetssemitransparent conducting oxidetunnel junction diodesMore Related Videos
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