Surface State Capture Cross-Section at the Interface between Silicon and Hafnium Oxide

The interfacial properties between silicon and hafnium oxide (HfO2) are explored by the gated-diode method and the subthreshold measurement. The density of interface-trapped charges, the current induced by surface defect centers, the surface recombination velocity, and the surface state capture cros...

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Main Author: Fu-Chien Chiu
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2013/950439
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author Fu-Chien Chiu
author_facet Fu-Chien Chiu
author_sort Fu-Chien Chiu
collection DOAJ
description The interfacial properties between silicon and hafnium oxide (HfO2) are explored by the gated-diode method and the subthreshold measurement. The density of interface-trapped charges, the current induced by surface defect centers, the surface recombination velocity, and the surface state capture cross-section are obtained in this work. Among the interfacial properties, the surface state capture cross-section is approximately constant even if the postdeposition annealing condition is changed. This effective capture cross-section of surface states is about 2.4 × 10−15 cm2, which may be an inherent nature in the HfO2/Si interface.
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spelling doaj-art-3588359c8bc24ccf9edd5909d93d26c02025-02-03T06:11:41ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422013-01-01201310.1155/2013/950439950439Surface State Capture Cross-Section at the Interface between Silicon and Hafnium OxideFu-Chien Chiu0Department of Electronic Engineering, Ming Chuan University, Taoyuan, Taiwan 333, TaiwanThe interfacial properties between silicon and hafnium oxide (HfO2) are explored by the gated-diode method and the subthreshold measurement. The density of interface-trapped charges, the current induced by surface defect centers, the surface recombination velocity, and the surface state capture cross-section are obtained in this work. Among the interfacial properties, the surface state capture cross-section is approximately constant even if the postdeposition annealing condition is changed. This effective capture cross-section of surface states is about 2.4 × 10−15 cm2, which may be an inherent nature in the HfO2/Si interface.http://dx.doi.org/10.1155/2013/950439
spellingShingle Fu-Chien Chiu
Surface State Capture Cross-Section at the Interface between Silicon and Hafnium Oxide
Advances in Materials Science and Engineering
title Surface State Capture Cross-Section at the Interface between Silicon and Hafnium Oxide
title_full Surface State Capture Cross-Section at the Interface between Silicon and Hafnium Oxide
title_fullStr Surface State Capture Cross-Section at the Interface between Silicon and Hafnium Oxide
title_full_unstemmed Surface State Capture Cross-Section at the Interface between Silicon and Hafnium Oxide
title_short Surface State Capture Cross-Section at the Interface between Silicon and Hafnium Oxide
title_sort surface state capture cross section at the interface between silicon and hafnium oxide
url http://dx.doi.org/10.1155/2013/950439
work_keys_str_mv AT fuchienchiu surfacestatecapturecrosssectionattheinterfacebetweensiliconandhafniumoxide