Study on capacitance performance of gallium nitride (GaN) diodes in high dose electron irradiation

Impact of 2 MGy and 10 MGy electron irradiation on gallium nitride (GaN) light emitting diodes (LEDs) has been studied. The device was a commercial product (Manufacturer: Vishay) type of GaN Blue LEDs (TLHB5400). The capacitance-voltage (C-V) characteristics of pre- and post-irradiation were measure...

Full description

Bibliographic Details
Main Authors: Abdullah, Yusof, Hedzir, Anati Syahirah, Hasbullah, Nurul Fadzlin, Che Hak, Cik Rohaida
Format: Conference or Workshop Item
Language:English
English
English
Published: American Institute of Physics Inc. 2019
Subjects:
Online Access:http://irep.iium.edu.my/72573/
http://irep.iium.edu.my/72573/
http://irep.iium.edu.my/72573/
http://irep.iium.edu.my/72573/19/72573_Study%20on%20capacitance%20performance%20of%20gallium.pdf
http://irep.iium.edu.my/72573/2/72573_Study%20on%20capacitance%20performance_SCOPUS.pdf
http://irep.iium.edu.my/72573/3/72573_Study%20on%20capacitance%20performance_WOS.pdf
Description
Summary:Impact of 2 MGy and 10 MGy electron irradiation on gallium nitride (GaN) light emitting diodes (LEDs) has been studied. The device was a commercial product (Manufacturer: Vishay) type of GaN Blue LEDs (TLHB5400). The capacitance-voltage (C-V) characteristics of pre- and post-irradiation were measured. The result showed that the amount of capacitance and doping concentration decreases as the radiation dose increased. The deactivation of dopants atoms in the bulk increased due to higher irradiation dose hence increasing the radiation-induced defect which lead to the degradation of the device.