Analysis of the standard deviation of surface potential fluctuations in MOS interface from DLTS spectra

Date

1998-05-01

Author

Ozder, S
Atilgan, I
Katircioglu, B

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

185
views

0
downloads

The surface potential fluctuations can have significant effects on both the magnitude and shape of the measured small-pulse DLTS spectrum. An increase in the dispersion parameter sigma(S) of the surface potential distribution, which is assumed to have a Gaussian form, leads to a reduction in the DLTS signal size, a shift of the peak position and a broadening of the peak shape. A computer program including the exponential temperature dependence of hole capture cross section, sigma(P) = sigma(0) exp(-Delta E-sigma/kT), was developed to analyse temperature-scan DLTS spectra of a MOS structure; in the evaluation procedure sigma(S), sigma(0) and Delta E-sigma are taken as fitting parameters. A bias dependence of sigma(S) has been found and an interpretation of this behaviour has been attempted in the light of random point charges (Brews) and patchwork (Nicollian-Goetzberger) models.

Subject Keywords

Modelling and Simulation, General Materials Science, Mechanics of Materials, Condensed Matter Physics, Computer Science Applications

URI

https://hdl.handle.net/11511/67244

Journal

MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING

DOI

https://doi.org/10.1088/0965-0393/6/3/005

Collections

Department of Physics, Article

Suggestions

OpenMETU
Core

Simulation of dissolution of silicon in an indium solution by spectral methods Coskun, AU; Yener, Y; Arinc, F (IOP Publishing, 2002-09-01) The results of a numerical simulation of natural convection due to concentration gradients during dissolution of silicon in an indium solution in a horizontal substrate-solution-substrate system are presented. The Chebyshev-Tau spectral method has been used for the simulations. The results are in very good agreement with the experimental data available in the literature. It is concluded that the discrepancies in the dissolution depths between the previous simulations and experimental data, especially at the...
Analysis of the Specific Heat in the Supercooled Solid Phase of Liquid Crystals Kilit, Emel; Yurtseven, Hasan Hamit (Informa UK Limited, 2011-01-01) The specific heat Cp is analyzed using the experimental data at various temperatures in the solid phase of cholesteryl myristate according to a power-law formula for the rapidly and slowly cooled solid in the stability limit. We also analyze the temperature dependence of the Cp using the experimental data for the supercooled solid phase of p-azoxyanisole in the stability limit and the stability temperatures are determined for both cholesteryl myristate and p-azoxyanisole.
Analysis of the Raman Frequency Shifts for the Lattice Modes and Vibrons Related to the Thermodynamic Quantities in the eta Phase of Solid Nitrogen Yurtseven, Hasan Hamit (Walter de Gruyter GmbH, 2013-08-01) The thermodynamic quantities of the isothermal compressibility, thermal expansion and the specific heat are calculated here as a function of pressure by using the observed Raman frequencies of the lattice modes and vibrons in the. phase of solid nitrogen. The Pippard relations and their spectroscopic modifications are constructed, and the slope dP/dT is deduced from the Raman frequency shifts in this phase of N-2. It is shown that the thermodynamic quantities can be predicted from the Raman frequency shifts...
Comparison of the short and long-term degradation behaviors of as-cast pure Mg, AZ91 and WE43 alloys Ocal, Ezgi Butev; ESEN, ZİYA; Aydınol, Mehmet Kadri; Dericioğlu, Arcan Fehmi (Elsevier BV, 2020-02-01) The corrosion behaviors of pure magnesium, AZ91, and WE43 alloys have been evaluated by weight loss, hydrogen evolution rate, pH change measurements and potentiodynamic polarization as well as electrochemical impedance spectroscopy (EIS) methods. Main corrosion product formed on the surface of Mg/Mg-alloys after immersion of 24 h was Mg(OH)(2) on the other hand, at the end of the 20 days additional CaCO3 which was found to display a critical role in degradation characteristics of the samples, was found. Exa...
Calculation of the Raman Linewidths of Lattice Modes Close to the alpha-beta Transition in Quartz Lider, Mustafa Cem; Yurtseven, Hasan Hamit (Walter de Gruyter GmbH, 2012-12-01) The Raman frequencies of the lattice modes (147 cm(-1) and 207 cm(-1)) are analyzed for the alpha-beta transition in quartz according to a power-law formula with the critical exponent by using the experimental data. The temperature dependence of the Raman frequency is associated with the order parameter (polarization P) for this transition in the quartz crystal.

Citation Formats

S. Ozder, I. Atilgan, and B. Katircioglu, “Analysis of the standard deviation of surface potential fluctuations in MOS interface from DLTS spectra,” MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING, pp. 261–271, 1998, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/67244.