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Current Mechanism in HfO2-Gated Metal-Oxide-Semiconductor Devices
Author
Source
International Journal of Photoenergy
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-06-19
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The present study aimed to examine the current density-voltage (J-V) characteristics of Al/HfO2/p-Si (MOS) structure at temperatures ranging between 100 and 320 K and to determine the structure’s current transport mechanism.
The HfO2 film was coated on a single side of the p-Si (111) crystal using the spin coating method.
The J-V measurements of the obtained structure at the temperatures between 100 and 320 K revealed that the current transport mechanism in the structure was compatible with the Schottky emission theory.
The Schottky emission theory was also used to calculate the structure’s Schottky barrier heights (ϕB), dielectric constants (εr) and refractive index values of the thin films at each temperature value.
The dielectric constant and refractive index values were observed to decrease at decreasing temperatures.
The capacitance-voltage (C-V) and conductance-voltage (G/ω-V) characteristics of Al/HfO2/p-Si (MOS) structure was measured in the temperature range of 100–320 K.
The values of measured C and G/ω decrease in accumulation and depletion regions with decreasing temperature due to localized Nss at Si/HfO2 interface.
American Psychological Association (APA)
Pakma, Osman. 2012. Current Mechanism in HfO2-Gated Metal-Oxide-Semiconductor Devices. International Journal of Photoenergy،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-503910
Modern Language Association (MLA)
Pakma, Osman. Current Mechanism in HfO2-Gated Metal-Oxide-Semiconductor Devices. International Journal of Photoenergy No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-503910
American Medical Association (AMA)
Pakma, Osman. Current Mechanism in HfO2-Gated Metal-Oxide-Semiconductor Devices. International Journal of Photoenergy. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-503910
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-503910