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Finite element simulation and analysis of nanometal-semiconductor contacts

Finite element simulation and analysis of nanometal-semiconductor contacts Abstract Nanometal-semiconductor contacts in the sub-20-nm range have shown some deviations in electrical characteristics compared to conventional diodes. We have used a finite element simulation software to build and analyze a proposed geometrical model. We used two different theoretical approaches to study the enhancements of the electric field at the interface, and then the total current across nano-Schottky junction. The results revealed a significant tunneling current at the reverse bias for low n-doped semiconductor substrates and low current at the forward bias. However, in the case of high n-doped semiconductor substrates, the thermionic current is significant at forward biases and the current is low at the reverse bias. We have used our finite element simulation models based on both approaches to fit the existing experimental data of nano-Schottky contacts. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nanotechnology Reviews de Gruyter

Finite element simulation and analysis of nanometal-semiconductor contacts

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References (35)

Publisher
de Gruyter
Copyright
Copyright © 2016 by the
ISSN
2191-9089
eISSN
2191-9097
DOI
10.1515/ntrev-2015-0039
Publisher site
See Article on Publisher Site

Abstract

Abstract Nanometal-semiconductor contacts in the sub-20-nm range have shown some deviations in electrical characteristics compared to conventional diodes. We have used a finite element simulation software to build and analyze a proposed geometrical model. We used two different theoretical approaches to study the enhancements of the electric field at the interface, and then the total current across nano-Schottky junction. The results revealed a significant tunneling current at the reverse bias for low n-doped semiconductor substrates and low current at the forward bias. However, in the case of high n-doped semiconductor substrates, the thermionic current is significant at forward biases and the current is low at the reverse bias. We have used our finite element simulation models based on both approaches to fit the existing experimental data of nano-Schottky contacts.

Journal

Nanotechnology Reviewsde Gruyter

Published: Jun 1, 2016

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