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Schottky's barrier height of T91/Cr2O3 heterojunction in dry and wet conditions: effects of watervapor onto accelerated high temperature oxidation

Increasing the operating temperature in thermal power plant will further accelerate the high temperature oxidation with the presence of water vapor. It is hypothesized that water vapor provides hydrogen that dissolves into the ferritic alloy susbstrate, hence altering their electronic state at the m...

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Main Authors: Ani, Mohd Hanafi, Zaharudin, M Z, ., Suryanto, Purwanto, Hadi, Din, M.F.M., ., T. Kurniawan
Format: Conference or Workshop Item
Language:English
Published: IEEE 2018
Subjects:
T Technology (General)
Online Access:http://irep.iium.edu.my/69696/8/69696%20Schottky%27s%20Barrier%20Height.pdf
http://irep.iium.edu.my/69696/
https://ieeexplore.ieee.org/document/8448748
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spelling my.iium.irep.696962019-07-15T07:38:16Z http://irep.iium.edu.my/69696/ Schottky's barrier height of T91/Cr2O3 heterojunction in dry and wet conditions: effects of watervapor onto accelerated high temperature oxidation Ani, Mohd Hanafi Zaharudin, M Z ., Suryanto Purwanto, Hadi Din, M.F.M. ., T. Kurniawan T Technology (General) Increasing the operating temperature in thermal power plant will further accelerate the high temperature oxidation with the presence of water vapor. It is hypothesized that water vapor provides hydrogen that dissolves into the ferritic alloy susbstrate, hence altering their electronic state at the metal-semiconductor (oxide) interface. This study aims to quantitatively prove above postulation by comparing their Schottky's Barrier Height (SBH) in dry and wet environment. The Schottky's barrier was prepared by sputtering Cr2O3 onto the T91 boiler tube in high vacuum condition using RF power 150W for an hour. The T91/Cr2O3 junction was then connected with platinum wire for capacitance-voltage, C-V test at high temperature. The value of Vbi was used to calculate the SBH, which increase proportionately with built in voltage. It is clearly shown that the SBH value in wet condition is higher than that in dry condition by 10.3%. This is explained by the formation of space charge layer at metal/oxide interface due to dissolved hydrogen in metal, thus may change the transport property and accelerate the oxidation rate in water vapor. IEEE 2018-11-15 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/69696/8/69696%20Schottky%27s%20Barrier%20Height.pdf Ani, Mohd Hanafi and Zaharudin, M Z and ., Suryanto and Purwanto, Hadi and Din, M.F.M. and ., T. Kurniawan (2018) Schottky's barrier height of T91/Cr2O3 heterojunction in dry and wet conditions: effects of watervapor onto accelerated high temperature oxidation. In: 2018 2nd International Conference on Engineering Innovation (ICEI), 5th-6th July 2018, Bangkok, Thailand. https://ieeexplore.ieee.org/document/8448748 10.1109/ICEI18.2018.8448748
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic T Technology (General)
spellingShingle T Technology (General)
Ani, Mohd Hanafi
Zaharudin, M Z
., Suryanto
Purwanto, Hadi
Din, M.F.M.
., T. Kurniawan
Schottky's barrier height of T91/Cr2O3 heterojunction in dry and wet conditions: effects of watervapor onto accelerated high temperature oxidation
description Increasing the operating temperature in thermal power plant will further accelerate the high temperature oxidation with the presence of water vapor. It is hypothesized that water vapor provides hydrogen that dissolves into the ferritic alloy susbstrate, hence altering their electronic state at the metal-semiconductor (oxide) interface. This study aims to quantitatively prove above postulation by comparing their Schottky's Barrier Height (SBH) in dry and wet environment. The Schottky's barrier was prepared by sputtering Cr2O3 onto the T91 boiler tube in high vacuum condition using RF power 150W for an hour. The T91/Cr2O3 junction was then connected with platinum wire for capacitance-voltage, C-V test at high temperature. The value of Vbi was used to calculate the SBH, which increase proportionately with built in voltage. It is clearly shown that the SBH value in wet condition is higher than that in dry condition by 10.3%. This is explained by the formation of space charge layer at metal/oxide interface due to dissolved hydrogen in metal, thus may change the transport property and accelerate the oxidation rate in water vapor.
format Conference or Workshop Item
author Ani, Mohd Hanafi
Zaharudin, M Z
., Suryanto
Purwanto, Hadi
Din, M.F.M.
., T. Kurniawan
author_facet Ani, Mohd Hanafi
Zaharudin, M Z
., Suryanto
Purwanto, Hadi
Din, M.F.M.
., T. Kurniawan
author_sort Ani, Mohd Hanafi
title Schottky's barrier height of T91/Cr2O3 heterojunction in dry and wet conditions: effects of watervapor onto accelerated high temperature oxidation
title_short Schottky's barrier height of T91/Cr2O3 heterojunction in dry and wet conditions: effects of watervapor onto accelerated high temperature oxidation
title_full Schottky's barrier height of T91/Cr2O3 heterojunction in dry and wet conditions: effects of watervapor onto accelerated high temperature oxidation
title_fullStr Schottky's barrier height of T91/Cr2O3 heterojunction in dry and wet conditions: effects of watervapor onto accelerated high temperature oxidation
title_full_unstemmed Schottky's barrier height of T91/Cr2O3 heterojunction in dry and wet conditions: effects of watervapor onto accelerated high temperature oxidation
title_sort schottky's barrier height of t91/cr2o3 heterojunction in dry and wet conditions: effects of watervapor onto accelerated high temperature oxidation
publisher IEEE
publishDate 2018
url http://irep.iium.edu.my/69696/8/69696%20Schottky%27s%20Barrier%20Height.pdf
http://irep.iium.edu.my/69696/
https://ieeexplore.ieee.org/document/8448748
_version_ 1643619857141334016
score 13.211869

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