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Lookup NU author(s): Cezar Blasciuc-Dimitriu,
Dr Alton Horsfall,
Dr Konstantin Vasilevskiy,
Dr Christopher Johnson,
Professor Nick Wright,
Professor Anthony O'Neill
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Three approaches to the modelling of the temperature and voltage dependence of the forward and reverse bias characteristics of 4H-SiC Ti Schottky Diodes are compared. 4H-SiC Schottky barrier diodes (SD) were fabricated and subjected to forward and reverse bias I-V characterisation at temperatures ranging from ambient to 300°C. Device parameters (barrier height, ideality factor) and the Richardson constant - area product (A·A**) were extracted from the forward characteristics using a modified Norde technique. Comparisons were made using extracted parameters for both forward and reverse bias conditions between three models: thermionic emission theory (TE), thermionic emission with barrier lowering (TEBIL) theory and thermionic field emission (TFE) theory. It is found that both TEBIL and TFE can provide a close fit for both forward and reverse conditions from a single set of parameters.
Author(s): Blasciuc-Dimitriu C, Horsfall AB, Vasilevskiy KV, Johnson CM, Wright NG, O'Neill AG
Publication type: Article
Publication status: Published
Journal: Materials Science Forum
Print publication date: 01/09/2003
ISSN (print): 0255-5476
ISSN (electronic): 1422-6375
Publisher: Trans Tech Publications Ltd.
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