2D-modeling for the simulation of current-voltage characteristics in polysilicon schottky diode deposited by LPCVD and SAPCVD methods
Link to publisher's homepage at http://www.unimap.edu.my/ ; Open access only applicable for vol. 1 ; issue 1, 2008 & vol. 2 ; issue 1, 2009.
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my.unimap-53382009-11-25T08:40:47Z 2D-modeling for the simulation of current-voltage characteristics in polysilicon schottky diode deposited by LPCVD and SAPCVD methods Benseddik, Nadia Amrani, Mohammed Benamara, Zineb Mohammed-Brahim, Tayeb Silicon -- Electric properties Polysilicon Silicon Diodes, Semiconductor Diodes, Schottky-barrier Crystals Silicon crystals Link to publisher's homepage at http://www.unimap.edu.my/ ; Open access only applicable for vol. 1 ; issue 1, 2008 & vol. 2 ; issue 1, 2009. The aim of this work is to compare the quality of the Schottky contact obtained between Silver and the un-doped polysilicon layer deposited on glass substrate (Corning 1737) by using two techniques: Lower Pressure Chemical Vapor deposition LPCVD (LPCVD sample) and Sub Atmospheric Pressure Chemical Vapor Deposition SAPCVD (SAPCVD sample). A non ideal measured foward bias I-V characteristic has been observed. The elctrical parameters are evaluated such as ideality factor (4.94 and 6.46), barrier height (0.57 eV and 0.50 eV), saturation current (6.74x10ˉ³ mA and 2.14x10ˉ² mA) and series resistance (960Ω and 2300Ω), respectively on LPCVD and SAPCVD samples. Two-dimensional (2D) model of I-V characteristics taking into account the localization of traps states in the grain boundaries is developed. We are also considered the U-distribution of traps states in the band gap. A good adjustment is obtained between measurement and simulation of I-V characteristics and gives the energetic traps states distribution. The comparison of the performance of the two polysilicon layer deposition techniques has been analyzed and discussed. The experimental current curves are well fitted by this model which gives the energetic traps states distribution in the band gap. A good quality polycrystalline can be obtained using LPCVD technique but it is possible to deposit films with SAPCVD technique which it may be interesting candidate for the fabrication of solar cell. 2009-04-06T13:38:45Z 2009-04-06T13:38:45Z 2009 Article International Journal of Nanoelectronics and Materials, vol. 2 (1), 2009, pages 75-89. 1985-5761 (Printed) 1997-4434 (Online) http://hdl.handle.net/123456789/5338 http://www.unimap.edu.my en Universiti Malaysia Perlis |
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Silicon -- Electric properties Polysilicon Silicon Diodes, Semiconductor Diodes, Schottky-barrier Crystals Silicon crystals |
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Silicon -- Electric properties Polysilicon Silicon Diodes, Semiconductor Diodes, Schottky-barrier Crystals Silicon crystals Benseddik, Nadia Amrani, Mohammed Benamara, Zineb Mohammed-Brahim, Tayeb 2D-modeling for the simulation of current-voltage characteristics in polysilicon schottky diode deposited by LPCVD and SAPCVD methods |
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Link to publisher's homepage at http://www.unimap.edu.my/ ; Open access only applicable for vol. 1 ; issue 1, 2008 & vol. 2 ; issue 1, 2009. |
format |
Article |
author |
Benseddik, Nadia Amrani, Mohammed Benamara, Zineb Mohammed-Brahim, Tayeb |
author_facet |
Benseddik, Nadia Amrani, Mohammed Benamara, Zineb Mohammed-Brahim, Tayeb |
author_sort |
Benseddik, Nadia |
title |
2D-modeling for the simulation of current-voltage characteristics in polysilicon schottky diode deposited by LPCVD and SAPCVD methods |
title_short |
2D-modeling for the simulation of current-voltage characteristics in polysilicon schottky diode deposited by LPCVD and SAPCVD methods |
title_full |
2D-modeling for the simulation of current-voltage characteristics in polysilicon schottky diode deposited by LPCVD and SAPCVD methods |
title_fullStr |
2D-modeling for the simulation of current-voltage characteristics in polysilicon schottky diode deposited by LPCVD and SAPCVD methods |
title_full_unstemmed |
2D-modeling for the simulation of current-voltage characteristics in polysilicon schottky diode deposited by LPCVD and SAPCVD methods |
title_sort |
2d-modeling for the simulation of current-voltage characteristics in polysilicon schottky diode deposited by lpcvd and sapcvd methods |
publisher |
Universiti Malaysia Perlis |
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2009 |
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http://dspace.unimap.edu.my/xmlui/handle/123456789/5338 |
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1643788365768687616 |
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13.18916 |