A review of leakage current mechanism in nitride based light emitting diode

We review the dominant mechanism and characteristics which give rise to the existence of forward and reverse leakage current in nitride based light emitting diode (LED). The existence of leakage current can affect the reliability and efficiency of LED. Hence, to understand the mechanism that is resp...

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Main Authors: Hedzir, Anati Syahirah, Muridan, Norasmahan, Hasbullah, Nurul Fadzlin
Format: Article
Language:English
English
Published: Penerbit UTM Press 2016
Subjects:
Online Access:http://irep.iium.edu.my/56260/
http://irep.iium.edu.my/56260/1/56260_A%20review%20of%20leakage%20current%20mechanism%20in%20nitride%20based%20light.pdf
http://irep.iium.edu.my/56260/7/56260_A%20review%20of%20leakage%20current%20mechanism_WOS.pdf
_version_ 1848784703639781376
author Hedzir, Anati Syahirah
Muridan, Norasmahan
Hasbullah, Nurul Fadzlin
author_facet Hedzir, Anati Syahirah
Muridan, Norasmahan
Hasbullah, Nurul Fadzlin
author_sort Hedzir, Anati Syahirah
building IIUM Repository
collection Online Access
description We review the dominant mechanism and characteristics which give rise to the existence of forward and reverse leakage current in nitride based light emitting diode (LED). The existence of leakage current can affect the reliability and efficiency of LED. Hence, to understand the mechanism that is responsible for its existence, the occurrence of leakage current is divided into three main parameters: 1) low bias; 2) medium or high bias; 3) temperature dependence. For reverse bias, many reports suggest Poole-Frenkel as the dominant mechanism in low reverse bias and some others suggested the field dependent tunneling mechanism. In high reverse bias, many studies have shown tunneling to be the dominant mechanism. However ,there is also few other papers suggesting variable range hopping (VRH) or PF being a dominant mechanism. When the reverse bias currentvoltage measurement below 200 K, majority studies reported VRH to be the dominant mechanism. Meanwhile, for forward bias, defect-assisted tunneling is most likely the dominant mechanism. At low forward voltages, electrons are believed to be the dominant carriers for defect assisted tunneling, while holes are reported to be likely the dominant carrier in medium forward voltages.
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spelling iium-562602017-04-05T06:34:25Z http://irep.iium.edu.my/56260/ A review of leakage current mechanism in nitride based light emitting diode Hedzir, Anati Syahirah Muridan, Norasmahan Hasbullah, Nurul Fadzlin TA Engineering (General). Civil engineering (General) We review the dominant mechanism and characteristics which give rise to the existence of forward and reverse leakage current in nitride based light emitting diode (LED). The existence of leakage current can affect the reliability and efficiency of LED. Hence, to understand the mechanism that is responsible for its existence, the occurrence of leakage current is divided into three main parameters: 1) low bias; 2) medium or high bias; 3) temperature dependence. For reverse bias, many reports suggest Poole-Frenkel as the dominant mechanism in low reverse bias and some others suggested the field dependent tunneling mechanism. In high reverse bias, many studies have shown tunneling to be the dominant mechanism. However ,there is also few other papers suggesting variable range hopping (VRH) or PF being a dominant mechanism. When the reverse bias currentvoltage measurement below 200 K, majority studies reported VRH to be the dominant mechanism. Meanwhile, for forward bias, defect-assisted tunneling is most likely the dominant mechanism. At low forward voltages, electrons are believed to be the dominant carriers for defect assisted tunneling, while holes are reported to be likely the dominant carrier in medium forward voltages. Penerbit UTM Press 2016 Article PeerReviewed application/pdf en http://irep.iium.edu.my/56260/1/56260_A%20review%20of%20leakage%20current%20mechanism%20in%20nitride%20based%20light.pdf application/pdf en http://irep.iium.edu.my/56260/7/56260_A%20review%20of%20leakage%20current%20mechanism_WOS.pdf Hedzir, Anati Syahirah and Muridan, Norasmahan and Hasbullah, Nurul Fadzlin (2016) A review of leakage current mechanism in nitride based light emitting diode. Malaysian Journal of Fundamental and Applied Sciences, 12 (2). pp. 77-84. ISSN 2289-5981 E-ISSN 2289-599X http://www.mjfas.utm.my/index.php/mjfas/article/view/412
spellingShingle TA Engineering (General). Civil engineering (General)
Hedzir, Anati Syahirah
Muridan, Norasmahan
Hasbullah, Nurul Fadzlin
A review of leakage current mechanism in nitride based light emitting diode
title A review of leakage current mechanism in nitride based light emitting diode
title_full A review of leakage current mechanism in nitride based light emitting diode
title_fullStr A review of leakage current mechanism in nitride based light emitting diode
title_full_unstemmed A review of leakage current mechanism in nitride based light emitting diode
title_short A review of leakage current mechanism in nitride based light emitting diode
title_sort review of leakage current mechanism in nitride based light emitting diode
topic TA Engineering (General). Civil engineering (General)
url http://irep.iium.edu.my/56260/
http://irep.iium.edu.my/56260/
http://irep.iium.edu.my/56260/1/56260_A%20review%20of%20leakage%20current%20mechanism%20in%20nitride%20based%20light.pdf
http://irep.iium.edu.my/56260/7/56260_A%20review%20of%20leakage%20current%20mechanism_WOS.pdf